Academic literature on the topic 'Tomatoes – Breeding'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Tomatoes – Breeding.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Tomatoes – Breeding"
1
Robinson, Richard W. "Breeding Tomatoes for Attractiveness to Pollinating Insects." HortScience 30, no. 4 (July 1995): 797C—797. http://dx.doi.org/10.21273/hortsci.30.4.797c.
Full textAbstract:
Bumblebees are commercially used to improve fruit set of greenhouse tomatoes, but they seldom pollinate tomatoes outdoors if not confined in a no-choice situation. Bumblebees frequently pollinated L. peruvianum and other self-incompatible (SI) Lycopersicon species, but not tomato plants, in the field at Geneva, N.Y. Bumblebees were very efficient pollinators of Sl Lycopersicon species, averaging only 5 s to pollinate one flower and fly to the next. Transfer of this attractiveness to pollinating insects to the tomato could improve fruit set of tomatoes grown in greenhouses with introduced bumblebees. It could also improve fruit set in the field, especially when conditions are poor for pollination. It has potential use for producing F1 hybrid seed, but associated problems make hybrid tomato seed production by insect pollination impractical now. Attractiveness to pollinating insects is being introgressed from L. peruvianum, L. hirsutum, and L. pennellii in the tomato breeding program at Geneva, N.Y. Several floral characteristics were found to be of importance for attracting pollinators, including the reaction to ultraviolet light. Flowers of SI species absorbed UV, whereas tomato flowers reflected UV light.
2
Alonso, A., R. García-Aliaga, S. García-Martínez, J. J. Ruiz, and A. A. Carbonell-Barrachina. "Characterization of Spanish Tomatoes using Aroma Composition and Discriminant Analysis." Food Science and Technology International 15, no. 1 (February 2009): 47–55. http://dx.doi.org/10.1177/1082013208102385.
Full textAbstract:
Nowadays, tomato breeders are trying to associate high fruit firmness, long shelf life, high disease resistance, and good flavor; however, breeding for sensory quality has been severely restricted up to date. In this study, a system specifically designed for the analysis of low amounts of material has been set up and tested to quantify the volatile aroma constituents of tomatoes. Ten volatile compounds with a major contribution to tomato aroma have been quantitatively determined in two traditional tomato types (Muchamiel and De la Pera) and one hybrid type (Odissea). Both traditional types presented higher intensities of tomato odor and aroma according to a trained panel and they were more accepted by a consumer panel than the hybrid tomatoes. The traditional tomatoes showed significantly higher contents of most of the volatiles studied. Significant differences among traditional and hybrid types were found and a mathematical model that successfully discriminated among tomato types was developed using only the concentrations of six volatile compounds: 3-methylbutanal, 1-penten-3-one, hexanal, trans-2-hexenal, 1-hexanol, and 2-isobutylthiazole. This mathematical model could help in using volatile determination as a possible tool in tomato breeding programs and in maintaining and improving traditional Spanish tomato cultivars.
3
Lapidot, M., O. Goldray, R. Ben-Joseph, S. Cohen, M. Friedmann, A. Shlomo, S. Nahon, L. Chen, and M. Pilowsky. "Breeding tomatoes for resistance to tomato yellow leaf curl begomovirus." EPPO Bulletin 30, no. 2 (June 2000): 317–21. http://dx.doi.org/10.1111/j.1365-2338.2000.tb00902.x.
Full text
4
van Zijl, J. J. B., S. E. Bosch, and C. P. J. Coetzee. "BREEDING TOMATOES FOR PROCESSING IN SOUTH AFRICA." Acta Horticulturae, no. 194 (December 1986): 69–76. http://dx.doi.org/10.17660/actahortic.1986.194.6.
Full text
5
Zörb, Christian, Hans-Peter Piepho, Sabine Zikeli, and Bernd Horneburg. "Heritability and Variability of Quality Parameters of Tomatoes in Outdoor Production." Research 2020 (January 28, 2020): 1–9. http://dx.doi.org/10.34133/2020/6707529.
Full textAbstract:
The tomato is the most important vegetable globally. In England, outdoor tomatoes are widely grown by amateur gardeners, with the number of their allotment plots exceeding 150000. For instance, in Germany, only about 16% of tomato plants are cultivated according to organic standards, although these rates are expected to increase. Breeding for yield and fruit quality can increase resource efficiency. Therefore, we need to evaluate the variability of yield and fruit quality parameters, to calculate the heritability of these traits and to identify superior genotypes for organic outdoor tomato production and breeding. With these aims, we grew 24 tomato genotypes of diverse origins in a two-year field trial. The heritability of quality traits such as glucose, fructose, organic acid, and lycopene was high. The medium heritability for yield suggests that trials with a larger number of locations are needed for the reliable selection of this character. Negative correlations of sugar concentrations with fruit weight and of organic acid concentration with fruit weight and yield suggest trade-offs in breeding for larger fruits and higher yields. Breeding for increased lycopene content is not subject to these challenges; the concentrations of the primary metabolite sugars and organic acids are positively correlated.
6
Bdr, Muh Farid, Muhammad Fuad Anshori, Gracia Emanuella, Nur Pratiwi, Irna Ermiyanti, Vivi Yovita, M. Musdalifa, and N. Nasaruddin. "High Lycopene Tomato Breeding Through Diallel Crossing." Agrotech Journal 5, no. 2 (December 31, 2020): 63–72. http://dx.doi.org/10.31327/atj.v5i2.1347.
Full textAbstract:
Tomatoes are known as one of the natural source of antioxidant, which is a compound that can inhibit and reduce oxidative cell and biomolecule damages, such as lipid, protein, and DNA. Health benefits from lycopene made this compound a tomato breeding subject for increasing its nutrient content. Tomato breeding is an environment friendly and sustainable method in agriculture biofortification methods, hence making the efforts for increasing tomato lycopene content to be possible. The aim of this research was to produce tomato hybrid with high lycopene and yield. This research was conducted in Experimental Farm, Faculty of Agriculture, Hasanuddin Univerisy, Makassar throughout June-Septermber 2020. This research was done in full diallel analysis using Griffing 1 method. Hybrid characters are highly determined with the presence of maternal effect. Lycopene has no correlation with productionCharacters correlated with lycopene are plant height, number of leaves, number of fruits per bunch, fruit length and fruit diameter, whilst productivity is correlated with number of leaves, stem diameter, and fruit diameter. Hybrids that can be used in further selection are CM, MC, MBC and KBC
7
Ayenan, Mathieu Anatole Tele, Agyemang Danquah, Peter Hanson, Charles Ampomah-Dwamena, Fréjus Ariel Kpêdétin Sodedji, Isaac K. Asante, and Eric Yirenkyi Danquah. "Accelerating Breeding for Heat Tolerance in Tomato (Solanum lycopersicum L.): An Integrated Approach." Agronomy 9, no. 11 (November 7, 2019): 720. http://dx.doi.org/10.3390/agronomy9110720.
Full textAbstract:
Heat stress is a major limiting factor for crop productivity. Tomato is highly sensitive to heat stress, which can result in a total yield loss. To adapt to current and future heat stress, there is a dire need to develop heat tolerant cultivars. Here, we review recent attempts to improve screening for heat tolerance and to exploit genetic and genomic resources in tomatoes. We provide key factors related to phenotyping environments and traits (morphological, physiological, and metabolic) to be considered to identify and breed thermo-tolerant genotypes. There is significant variability in tomato germplasm that can be harnessed to breed for thermo-tolerance. Based on our review, we propose that the use of advanced backcross populations and chromosome segments substitution lines is the best means to exploit variability for heat tolerance in non-cultivated tomato species. We applied a meta quantitative trait loci (MQTL) analysis on data from four mapping experiments to co-localize QTL associated with heat tolerance traits (e.g., pollen viability, number of pollen, number of flowers, style protrusion, style length). The analysis revealed 13 MQTL of which 11 were composed of a cluster of QTL. Overall, there was a reduction of about 1.5-fold in the confidence interval (CI) of the MQTL (31.82 cM) compared to the average CI of individual QTL (47.4 cM). This confidence interval is still large and additional mapping resolution approaches such as association mapping and multi-parent linkage mapping are needed. Further investigations are required to decipher the genetic architecture of heat tolerance surrogate traits in tomatoes. Genomic selection and new breeding techniques including genome editing and speed breeding hold promise to fast-track development of improved heat tolerance and other farmer- and consumer-preferred traits in tomatoes.
8
Hoagland, Lori, John Navazio, Jared Zystro, Ian Kaplan, Jose Gomez Vargas, and Kevin Gibson. "Key Traits and Promising Germplasm for an Organic Participatory Tomato Breeding Program in the U.S. Midwest." HortScience 50, no. 9 (September 2015): 1301–8. http://dx.doi.org/10.21273/hortsci.50.9.1301.
Full textAbstract:
Local production of organic tomatoes marketed directly to consumers is growing rapidly in the U.S. Midwest. Growers serving this market need cultivars that are well adapted to local climatic conditions, are competitive under organic management, and have end-use quality characteristics desired by their customers. Participatory plant breeding is a powerful, cost-effective approach with potential to engage growers in development of new cultivars optimally adapted to organic farming systems. To initiate a participatory breeding program for organic tomatoes an online grower survey was conducted to identify key plant traits, and a diverse set of tomato germplasm was evaluated under organic management to better understand horticultural constraints and identify adapted germplasm for further development. Tomato growers rated flavor as their top breeding priority, followed by disease resistance with late blight (LB) (Phytophthora infestans), early blight (EB) (Alternaria solani), and septoria leaf spot (SLS) (Septoria lycopersici) identified as the most problematic diseases. In field trials, foliar diseases were problematic in both years, though many entries exhibited partial resistance. Differences among entries in resistance to insect pests such as hornworms (Manduca sexta) were also observed. Yield varied widely among entries with some of the F1 hybrids and heirloom cultivars performing well despite significant disease pressure. Overall, we identified existing cultivars and F1 hybrids with potential to meet the immediate needs of Midwest organic tomato growers, and segregating breeding populations for further selection to be conducted on working organic farms.
9
Paolo, Dario, Giulia Bianchi, Roberto Lo Scalzo, Carlo F. Morelli, Marco Rabuffetti, and Giovanna Speranza. "The Chemistry behind Tomato Quality." Natural Product Communications 13, no. 9 (September 2018): 1934578X1801300. http://dx.doi.org/10.1177/1934578x1801300927.
Full textAbstract:
Tomato is one of the most widely consumed fresh vegetables in the industrialized world and an important source of healthy constituents of the human diet. Despite the unique flavor characteristics of tomatoes, which make them extremely valuable in cooking, and their recognized beneficial role in the diet, the quality of tomato was traditionally only considered in connection to external appearances. As it happened with other highly requested crops, breeding programs of tomato focused their efforts on developing new varieties with higher yields and stress resistance, with better uniformity in fruit size, brighter color and prolonged shelf life. The downside of these strategies was that organoleptic features and nutritional value were often neglected, with a detrimental effect on commercial tomatoes. Over the last years, there has been an increase in consumers’ demand for tasty and healthy products. This aspect, paired with novel and multidisciplinary approaches to tomato research, allowed both sensory and nutritional qualities to be reconsidered as valuable parameters in breeding. In this review we describe the main chemical constituents of tomato, focusing on the flavor compounds (both volatile and non-volatile compounds) and secondary metabolites. Particular attention is paid to their beneficial effects on human health and their relevance to the overall quality of tomato.
10
Jones, R. A. "THE DEVELOPMENT OF SALT-TOLERANT TOMATOES: BREEDING STRATEGIES." Acta Horticulturae, no. 190 (September 1986): 101–14. http://dx.doi.org/10.17660/actahortic.1986.190.8.
Full textDissertations / Theses on the topic "Tomatoes – Breeding"
1
Mushia, Mahlodi Nicacius. "Evaluating the effect of moisture stress on tomato using non-destructive remote sensing techniques." Thesis, University of Limpopo, 2009. http://hdl.handle.net/10386/498.
Full textAbstract:
Thesis (MSC.Agriculture)) --University of Limpopo, 2009.The aim of this experiment was to evaluate the effect of moisture stress on tomato, using non-destructive remote sensing techniques and agronomic traits under field and greenhouse conditions. Two tomato cultivars Roma VF and Flora Dade were used for the trial. The soil was fertilized optimally for all nutrients to avoid other stresses except water stress; a 2x2 factorial experiment was conducted using two levels of water regimes (stressed vs. control (non-stressed)) having four replicates and two cultivars using a Completely Randomized Design. Pots were put under greenhouse and field conditions. Canopy temperature was measured using an infrared thermometer, NDVI values were recorded using a green seeker hand-held optical sensor unit and stomatal opening were determined using a leaf porometer. Other agronomic traits including days taken for 50% flowering, plant height, number of fruits per plant and fruit yield per plant were recorded. Leaf temperature in stressed plants was high as compared to non-stressed plants, whereas NDVI and stomata conductance values were low. Number of fruits per plant was low; each plant had 4.00 fruits under field conditions and 5.00 fruits per plant under greenhouse conditions as compared to 9.00 fruits under field conditions and 13.00 under greenhouse conditions for non stressed plants. Stressed plants were shorter as compared to non-stressed plants and days taken for 50% flowering were delayed in both cultivars for stressed plants. Stressed plants showed a sign of stress at early stages of plant development. Most of these signs were found on the plants rather than on the fruits, the shape of the main stem of a growing plant was one of the good indicators as it became thin and stringy under stressed conditions. The experiment showed that it is possible to evaluate the effect of moisture stress on tomato by the use of canopy temperature, NDVI, stomatal conductance and agronomic traits.
2
Maleka, Koena Gideon. "Determination of yield and yield components of selected tomato varities in soil with different levels of cattle manure application." Thesis, University of Limpopo (Turfloop Campus), 2012. http://hdl.handle.net/10386/834.
Full textAbstract:
Thesis (M.Sc. (Crop Science)) --University of Limpopo, 2012Organic tomatoes are increasingly popular with larger market acceptance since organic farming uses limited or no artificial chemicals. Application of organic fertilisers such as cattle manure has potential to boost organic tomato productivity particularly under low input farming systems. However, information is required on the optimum level of manure application on different tomato cultivars to help emerging tomato farmers in South Africa. The objective of this study was to determine the relative response of yield and yield components among selected determinate and indeterminate tomato cultivars using different levels of cattle manure. Two separate field experiments were conducted at the University of Limpopo during 2007 and 2008 using a split plot design with three replications. Two sets of tomato cultivars were included in which one set consisted indeterminate types (Money Maker, Ox Heart and Sweetie) and the other determinates (Roma and Floradade). Cultivars were assigned as the main plot treatments with six rates of manure (0, 10, 20, 30, 40 and 50 in gram per plant) applied as the subplot treatments to each set. Results indicated significant interactions (P ≤ 0.01) between indeterminate tomato cultivars and levels of manure applied for fruit yield and fruit size in both experiments. Plant height showed variation from 78 to168 cm in Experiment I and 87 to 176 cm in Experiment II. During Experiment I fruit number varied from 23 to 91 per plant and 23 to 97 in Experiment II. Significant differences were detected among determinate cultivars on fruit yield varying from 7928 to 3 4705 kg per hectare during Experiment I and 3 169 to 2 9840 kg per hectare during Experiment II. Overall, the best level of manure for maximum fruit yield and greater fruit size was achieved at 40 g per plant in the indeterminate cultivar Sweetie. Conversely, the best level of manure for maximum fruit yield was achieved at 30 g per plant in determinate cultivar Roma. Thus, to achieve maximum yield, tomato growers could apply 600 and 800 kg per hectare manure on the determinate and indeterminate tomato cultivars, respectively.
the National Research Foundation (NRF)
3
Kutz, Talita Slota. "Caracterização morfológica e molecular de genótipos de tomateiro do banco ativo de germoplasma da UTFPR - Pato Branco." Universidade Tecnológica Federal do Paraná, 2018. http://repositorio.utfpr.edu.br/jspui/handle/1/3070.
Full textAbstract:
No melhoramento de plantas, a variabilidade é fundamental na escolha dos genitores. Em contrapartida, quando comparado a outras espécies do gênero Solanum, o tomateiro dispõe de uma base genética estreita. Atualmente, na região sudoeste do Paraná há carência de cultivares de tomateiro de polinização aberta adaptadas a região e ao cultivo agroecológico. Desse modo, o objetivo deste trabalho foi caracterizar a variabilidade morfológica e molecular de genótipos de tomateiro de polinização aberta do BAGT da UTFPR – Pato Branco. O experimento foi conduzido na Área Experimental da UTFPR – Câmpus de Pato Branco, em delineamento de blocos ao acaso, com quatro repetições. A caracterização morfológica foi realizada em 17 genótipos, a partir de 41 descritores quantitativos e qualitativos de fruto e planta, avaliação de doenças e pragas e análises físicoquímicas de frutos. A variabilidade molecular foi analisada por meio de 20 iniciadores SSR em 19 genótipos de tomateiro. Os dados obtidos foram submetidos a diferentes análises multivariadas. Na caracterização da qualidade de fruto, 76,44% da variabilidade encontrada foi composta pelos descritores cromáticos b* (44,43%) e L*(7,21%), diâmetro da cicatriz do pedicelo (16,78%), número de lóculos (8,02%) e comprimento do fruto (8,02%). A dissimilaridade média morfológica geral entre os genótipos foi considerada baixa, os valores encontrados para os agrupamentos baseados nos caracteres quantitativos de planta foram de 0,34, 0,32 para os de frutos e para os caracteres gerais de 0,33. Dez dos 20 iniciadores que apresentaram bandas visíveis tiveram PIC superior à 0,58. A similaridade média obtida a partir dos fragmentos polimórficos amplificados através de 20 iniciadores SSR foi de 0,72. O genótipo comercial GA é morfologicamente e geneticamente semelhante ao genótipo UTFPR_046. O UTFPR_016 e UTFPR_029 apresentaram 90% de similaridade genética e ficaram alocados no mesmo agrupamento em todas as análises morfológicas, indicando alto grau de parentesco entre esses materiais. Os genótipos de fruto amarelo-alaranjado, UTFPR_008 e UTFPR_015, são morfologicamente semelhantes, no entanto, geneticamente são 41% divergentes. A dissimilaridade média morfológica (0,33) foi muito próxima da molecular (0,28). As análises morfológicas e moleculares permitiram identificar agrupamentos com características de interesse e a existência ou não da duplicidade no BAGT da UTFPR – Pato Branco. Os resultados deste trabalho contribuíram para a formação e caracterização do BAGT da UTFPR – Pato Branco e podem auxiliar no melhoramento genético de variedades de tomateiro de polinização aberta para o cultivo agroecológico na região sudoeste do Paraná.In plant breeding, variability is critical in choosing the parents. In contrast, when compared to other species of the genus Solanum, the tomato has a narrow genetic base. Currently, in the southwestern region of Paraná there is a lack of openpollinated tomato cultivars adapted to the region and agroecological cultivation. Thus, the objective of this work was to characterize the morphological and molecular variability of the open – pollinated tomato genotypes of BAGT UTFPR – Pato Branco. The experiment was conducted in the Experimental Area of UTFPR – Pato Branco Campus, in a randomized block design, with four replications. The morphological characterization was performed in 17 genotypes, from 41 quantitative and qualitative descriptors of fruit and plant, evaluation of diseases and pests and physical-chemical analyzes of fruits. The molecular variability was analyzed by means of 20 SSR primers in 19 tomato genotypes. The data were submitted to different multivariate analyzes. In the characterization of fruit quality, 76.44% of the variability was composed by the chromatic descriptors b * (44.43%) and L * (7.21%), pedicel scar diameter (16.78%), number of loci (8.02%) and fruit length (8.02%). The general morphological average dissimilarity among the genotypes was considered low, the values found for the groupings based on the quantitative plant characters were 0.34, 0.32 for the fruits and for the general characters 0.33. Ten of the 20 primers that showed visible bands had PIC above 0.58. The average similarity obtained from polymorphic fragments amplified through SSR primers was 0.72. The commercial GA genotype is morphologically and genetically similar to the UTFPR_046 genotype. UTFPR_016 and UTFPR_029 presented 90% genetic similarity and were allocated in the same cluster in all morphological analyzes, indicating a high degree of kinship among these materials. The yellow-orange fruit genotypes, UTFPR_008 and UTFPR_015, are morphologically similar, however, genetically they are 41% divergent. The mean morphological dissimilarity (0.33) was very close to the molecular (0.28). Morphological and molecular analyzes allowed the identification of clusters with characteristics of interest and the existence or not of duplicity in BAGT UTFPR – Pato Branco. The results of this work contributed to the formation and characterization of UTFPR – Pato Branco BAGT and may help in the genetic improvement of open pollinated tomato varieties for agroecological cultivation in the southwestern region of Paraná.
4
Pelinganga, Osvaldo Manuel. "Developing phytonematicides using indigenous cucumis africanus and cucumis myriocarpus fruits for tomatoproduction systems." Thesis, University of Limpopo, 2013. http://hdl.handle.net/10386/1354.
Full textAbstract:
Thesis (Ph. D. Agriculture (Plant Protection)) -- University of Limpopo, 2013Global withdrawal of synthetic fumigant and non-fumigant nematicides due to their ecounfriendly impacts and high toxicity to non-target organisms, respectively, increased the research and development of alternatives for managing population densities of plantparasitic nematodes, particularly the root-knot (Meloidogyne species) nematodes. Although Meloidogyne species had been managed using genotypes that are resistant to plant-parasitic nematodes in various crops, various challenges negate the available or introgressed nematode resistance. In tomato (Solanum lycopersicum) production, nematode races and instability of nematode resistant genotypes under certain conditions necessitated the continued research and development of alternatives since most of the existing commercial tomato cultivars are highly susceptible to various biological races of Meloidogyne species. The aim of the study was to research and develop appropriate dosages of two phyto- nematicides which could be applied through drip irrigation system in open field tomato production systems, while the specific objectives were to: (1) determine whether a computer-based model could provide nonphytotoxic concentrations to tomato plants using fresh fruits of wild watermelon (Cucumis africanus) and wild cucumber (C. myriocarpus) under greenhouse conditions, (2) determine whether computer-based concentrations from the two plant species when using dried fruits would be less phytotoxic and more suppressive to nematodes, (3) investigate application time intervals for the two products, (4) determine responses of plant growth in tomato and nematode suppression in respect to the derived dosages, and and (5) validate dosages of fermented crude extracts from the two plant species with respect to plant growth of tomato and suppression of nematode numbers. xxxiii Greenhouse, microplot and field studies were set to test the hypotheses intended to achieve the stated objectives, with reliability of measured variables being ensured by using statistical levels of significance (P ≤ 0.05) and coefficients of determination (R2), while validity was ensured by conducting experiments at the same location over two seasons and/or by setting up factorial treatments. Firstly, fermented plant extracts of fresh fruits from C. africanus and C. myriocarpus consistently reduced population densities of Meloidogyne species by 80-92% and 50-90%, respectively. Tomato plants were highly sensitive to the two products as shown by the total degree of sensitivities (Σk) and biological index of 0 and 3, respectively. Also, the mean concentration stimulation range (MCSR) of 11% and 7% concentrations, respectively, attested to this phytotoxicity. Secondly, fermented crude extracts of dried fruits from C. africanus and C. myriocarpus also reduced population densities of Meloidogyne species by 78-97% and 87-97%, respectively. Tomato plants were highly tolerant to the two products in dried form as shown by the total degree of sensitivities (Σk) and biological index of 4 and 3, respectively. The MCSR values for C. africanus and C. myriocarpus dried fruits on tomato were 2.64% and 2.99%, respectively, which for the purpose of this study were individually adjusted to 3%, which translated to 36 L undiluted material/ha of 4 000 tomato plants. In subsequent studies, 3% concentration was used as the standard, along with double strength concentration, namely, 6% concentration. Thirdly, the MCSR values derived in Objective 4, namely 3% and 6% concentration for both Cucumis species using the CARD model were used in the optimisation of application time interval using the innovative concept of weeks (0, 1, 2, 3 and 4) in a 30-day month period. Application time interval for 3% and 6% concentrations of C. africanus fruits was xxxiv optimised at 2.40 and 2.61 weeks in a 30-day month period, respectively, which translated to 18 days [(2.4 weeks/4 weeks) × 30 days] and 20 days [(2.6 weeks/4 weeks) × 30 days], respectively. In contrast, for both concentrations from fermented crude extracts of C. myriocarpus fruits, application time interval was optimised at 16 days for 2.2 and 2.1 weeks, respectively. During optimisation of application frequencies, fermented crude extracts from C. africanus and C. myriocarpus reduced final population densities of M. incognita race 2 by 70-97% and 76-96%, respectively. Fourthly, optimum application intervals (time), allowed computation of dosage, which is a product of concentration and application frequency (dosage = concentration × application frequency). Fifthly, validation of the dosages under open field conditions suggested that 6% × 16-day dosage under crude extracts from C. myriocarpus fruit significantly (P ≤ 0.05) improved growth of tomato plants when compared with those of either 0% (untreated control) or 3% at 16 days. In contrast, dosages of C. africanus fruit at two application frequency had no effect on growth of tomato plants – suggesting that either of the dosages was suitable for use in tomato production since both reduced nematode numbers. During validation, the materials reduced nematode numbers by margins similar to those observed previously under other environments. In conclusion, crude extracts of the two Cucumis species have stimulatory concentrations which have potential similar reductive effects on population densities of Meloidogyne species and could serve as botanical nematicides. However, since plant responses to the two products differed in terms of their respective dosages and active ingredients, it implied that for further improvement of the two, the overriding focus should be on their interaction with the protected plants and nematode numbers. Ideally, future research xxxv should include environmental impact studies, especially on the influence of the products fruit quality of tomato, earthworms, fish and bees.
5
Pelinganga, Osvaldo Manuel. "Developing phytonematicides using indigenous cucumis africanus and cucumis myriocarpus fruits for tomato production systems." Thesis, University of Limpopo, Turfloop Campus, 2013. http://hdl.handle.net/10386/1286.
Full textAbstract:
Thesis (Ph. D. Agriculture (Plant Protection)) -- University of Limpopo, 2013Global withdrawal of synthetic fumigant and non-fumigant nematicides due to their ecounfriendly impacts and high toxicity to non-target organisms, respectively, increased the research and development of alternatives for managing population densities of plantparasitic nematodes, particularly the root-knot (Meloidogyne species) nematodes. Although Meloidogyne species had been managed using genotypes that are resistant to plant-parasitic nematodes in various crops, various challenges negate the available or introgressed nematode resistance. In tomato (Solanum lycopersicum) production, nematode races and instability of nematode resistant genotypes under certain conditions necessitated the continued research and development of alternatives since most of the existing commercial tomato cultivars are highly susceptible to various biological races of Meloidogyne species. The aim of the study was to research and develop appropriate dosages of two phyto- nematicides which could be applied through drip irrigation system in open field tomato production systems, while the specific objectives were to: (1) determine whether a computer-based model could provide nonphytotoxic concentrations to tomato plants using fresh fruits of wild watermelon (Cucumis africanus) and wild cucumber (C. myriocarpus) under greenhouse conditions, (2) determine whether computer-based concentrations from the two plant species when using dried fruits would be less phytotoxic and more suppressive to nematodes, (3) investigate application time intervals for the two products, (4) determine responses of plant growth in tomato and nematode suppression in respect to the derived dosages, and and (5) validate dosages of fermented crude extracts from the two plant species with respect to plant growth of tomato and suppression of nematode numbers. xxxiii Greenhouse, microplot and field studies were set to test the hypotheses intended to achieve the stated objectives, with reliability of measured variables being ensured by using statistical levels of significance (P ≤ 0.05) and coefficients of determination (R2), while validity was ensured by conducting experiments at the same location over two seasons and/or by setting up factorial treatments. Firstly, fermented plant extracts of fresh fruits from C. africanus and C. myriocarpus consistently reduced population densities of Meloidogyne species by 80-92% and 50-90%, respectively. Tomato plants were highly sensitive to the two products as shown by the total degree of sensitivities (Σk) and biological index of 0 and 3, respectively. Also, the mean concentration stimulation range (MCSR) of 11% and 7% concentrations, respectively, attested to this phytotoxicity. Secondly, fermented crude extracts of dried fruits from C. africanus and C. myriocarpus also reduced population densities of Meloidogyne species by 78-97% and 87-97%, respectively. Tomato plants were highly tolerant to the two products in dried form as shown by the total degree of sensitivities (Σk) and biological index of 4 and 3, respectively. The MCSR values for C. africanus and C. myriocarpus dried fruits on tomato were 2.64% and 2.99%, respectively, which for the purpose of this study were individually adjusted to 3%, which translated to 36 L undiluted material/ha of 4 000 tomato plants. In subsequent studies, 3% concentration was used as the standard, along with double strength concentration, namely, 6% concentration. Thirdly, the MCSR values derived in Objective 4, namely 3% and 6% concentration for both Cucumis species using the CARD model were used in the optimisation of application time interval using the innovative concept of weeks (0, 1, 2, 3 and 4) in a 30-day month period. Application time interval for 3% and 6% concentrations of C. africanus fruits was xxxiv optimised at 2.40 and 2.61 weeks in a 30-day month period, respectively, which translated to 18 days [(2.4 weeks/4 weeks) × 30 days] and 20 days [(2.6 weeks/4 weeks) × 30 days], respectively. In contrast, for both concentrations from fermented crude extracts of C. myriocarpus fruits, application time interval was optimised at 16 days for 2.2 and 2.1 weeks, respectively. During optimisation of application frequencies, fermented crude extracts from C. africanus and C. myriocarpus reduced final population densities of M. incognita race 2 by 70-97% and 76-96%, respectively. Fourthly, optimum application intervals (time), allowed computation of dosage, which is a product of concentration and application frequency (dosage = concentration × application frequency). Fifthly, validation of the dosages under open field conditions suggested that 6% × 16-day dosage under crude extracts from C. myriocarpus fruit significantly (P ≤ 0.05) improved growth of tomato plants when compared with those of either 0% (untreated control) or 3% at 16 days. In contrast, dosages of C. africanus fruit at two application frequency had no effect on growth of tomato plants – suggesting that either of the dosages was suitable for use in tomato production since both reduced nematode numbers. During validation, the materials reduced nematode numbers by margins similar to those observed previously under other environments. In conclusion, crude extracts of the two Cucumis species have stimulatory concentrations which have potential similar reductive effects on population densities of Meloidogyne species and could serve as botanical nematicides. However, since plant responses to the two products differed in terms of their respective dosages and active ingredients, it implied that for further improvement of the two, the overriding focus should be on their interaction with the protected plants and nematode numbers. Ideally, future research xxxv should include environmental impact studies, especially on the influence of the products fruit quality of tomato, earthworms, fish and bees.
6
Tseke, Pontsho Edmund. "Responses of tomato plant growth and root-knot nematodes to phytonematicides from fermented fresh fruits of two indigenous cucumis species." Thesis, University of Limpopo, 2013. http://hdl.handle.net/10386/1673.
Full textAbstract:
Thesis (M.Sc. (Plant Production)) -- University of Limpopo, 2013Two phytonematicides were researched and developed from fermented crude extracts of wild watermelon (Cucumis africanus) and wild cucumber (Cucumis myriocarpus) fruits for use as alternatives to methyl bromide in managing root-knot (Meloidogyne species) nematodes in tomato (Solanum lycopersicum) production. Fruits of C. africanus contain cucurbitacin B (C32H48O8), while those of C. myriocarpus contain cucurbitacin A, which comprises cucumin (C27H40O9) and leptodermin (C27H38O8). Phytonematicides from C. africanus and C. myriocarpus fruits are referred to as nemafric-B and nemarioc-A, respectively. The two phytonematicides, due to their origin from plant species with allelochemicals, have high potential of being phytotoxic to crops. The use of the Curve-fitting Allelochemical Response Dosage (CARD) computer-based model assisted in the establishment of concentrations which were stimulatory to growth of tomato (Solanum lycopersicum) plants, while exhibiting nematoxic properties to Meloidogyne species. The two phytonematicides were developed from crude extracts of fruits dried at 52˚C in air-forced ovens and ground in a Wiley mill through 1-mm-opening sieves. However, equipment for drying and grinding fruits would not be accessible to smallholder farmers who wished to prepare their own products on-farm. The objective of this study therefore, was to determine whether nemafric-BL and nemarioc-AL produced from fresh fruit of the two Cucumis species would be suitable for use (i.e. non phytotoxic) in tomato production for managing population densities of M. incognita race 2. In order to distinguish the products of fresh (F) fruits from those of dried (D) fruits, they were code-named nemafricF-BL or nemariocF-BL and nemafricD-BL or nemariocD AL, respectively, where G and L denoted granular and liquid formulations, respectively. Tomato cv. ‘Floradade’ seedlings were infested with 3 000 eggs and second-stage xv juveniles of M. incognita race 2. An equivalent of 40 g and 80 g dried fruit mass of nemafric-B and nemarioc-A, namely, 284 g and 411 g fresh fruit mass for nemafric-B and nemarioc-A, respectively, were separately fermented using EMROSA effective micro-organisms mixed with 16 L chlorine-free tapwater in 20 L container for 14 days at ± 25˚C, allowing pH to gradually decline to ± 3.7. Separate experiments for each product run concurrently. Treatments, namely, 0, 2, 4, 8, 16, 32 and 64% concentrations, where for instance, 2% = 20 ml/1000 ml x 100, were arranged in a randomised complete block design, with 10 replications. Blocking in the greenhouse was done for wind direction which was regularly erected by fans for cooling down the greenhouse. At 56 days after weekly application of each treatment, flower number, fruit number, dry shoot mass, dry root mass, dry fruit mass, plant height, stem diameter and nematode numbers were each subjected to analysis of variance. Nematode data were, prior to analysis, transformed using log10(x + 1), but untransformed data were reported. Using the sum of squares, nemafric-BL and nemarioc-AL treatments affected dry root mass, dry shoot mass, flowers number, fruit number, plant height and stem diameter. Nemafric-BL contributed 67%, 78%, 58%, 43%, 60% and 26%, while nemarioc-AL contributed 71%, 61%, 19%, 35%, 34% and 24% to total treatment variation of the six respective variables. Plant variables with significant (P ≤ 0.05) treatment effects were further subjected to the CARD model to generate seven biological indices, with three distinct phases, namely, stimulation, neutral and inhibition phases. Using the quantified stimulation phase, the mean concentration stimulation range (MCSR) was computed for each variable using two biological indices, namely, threshold stimulation point (Dm) and saturation point (Rh). The CARD model explained 98%, 99%, 98% and 98% of the quadratic models of dry root mass, dry shoot mass, plant height and stem diameter, xvi respectively, against increasing concentrations of nemarioc-AL. Similarly, the CARD model explained 99%, 96%, 84% and 93% of total treatment variation in the respective plant variables. The integrated MCSR [MSCR = Dm + (Rh/2)] for nemafric-BL on tomato plants was 7%, while that for nemarioc-AL was 4%. In the CARD model, the overall sensitivities (∑k) of tomato plants exposed to nemafric-BL and nemarioc-AL were 3 units and 5 units, respectively. Tomato plants were therefore, less sensitive to nemarioc-AL since it had higher ∑k value than nemafric-BL. At 4% nemarioc-AL and at 7% nemafric-BL, the two phytonematicides were each highly suppressive to population densities of M. incognita race 2. In conclusion, on the basis of non-phytotoxicity of the computed MCSR values and their suppressive effects on population densities of M. incognita race 2, the smallholder farmers could produce nemafric-BL and nemarioc-AL phytonematicides on-farm. However, the production of the two products from fresh fruits would not be sustainable since fruits of the two Cucumis species are highly seasonal due to the high incidence of post-harvest decays.
The Land Bank Chair of Agriculture – University of Limpopo, Limpopo Agro-processing Technology Station,and the Flemish Interuniversity Council of Belgium
7
Power, Sean Duncan. "The water and nutrient potential of brewery effluent for hydroponic tomato production." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1011604.
Full textAbstract:
Brewery effluent that had undergone treatment in an anaerobic digester (AD) was used as an alternative water and nutrient source for hydroponic crop production. Brewery effluent was demonstrated to contain sufficient nutrients to support the growth, flowering and fruiting of Lycopersicum escolentum "Moneymaker" tomato crops. The adjustment of the effluent pH with phosphoric acid to between pH 6.0 and 6.5 increased the development of the crops by around 100% compared to crops grown in unaltered effluent. The pH adjusted effluent-grown plants grew to a mean height of 831.4 ± 21.1 mm and a dry biomass weight of 42.34 ± 2.76 g compared to the unaltered pH effluent plants which grew to a height of 410.6 ± 20.5 mm and a weight of 7.65 ± 0.68 g after 49 days. Effluent treatment in high-rate algal ponds (HRAP) was determined to have no positive effect on the nutritional potential of the effluent for Moneymaker production. The effluent-grown plants did not perform as well as plants grown in inorganic-fertilizer and municipal water. Plants grown in effluent grew taller but did not produce significantly more fruit when phosphoric acid (height: 1573.3 ± 50.4 mm, 19.4 ± 1.4 fruit per plant) was compared to nitric acid (height: 1254.1 ± 25.4 mm, 15.6 ± 1.5 fruit per plant) as the pH adjustment over 72 days. Direct and secondary plant stresses from effluent alkalinity, ammonium nutrition, nitrogen limitation, sodium concentrations and heat stress among other factors were probably confounding variables in these trials and require further investigation. Considering the raw effluent composition and manipulating the AD operation is a potential opportunity to improve overall AD performance, reduce chemical inputs in the effluent treatment process, reduce the final effluent alkalinity, and increase available nitrogen content in the final effluent. The anaerobic digester discharging >1000 m³ of nutrient enriched effluent every day is a resource with considerable potential. The benefits of developing this resource can contribute to cost-reduction at the brewery, more efficient water, nutrient and energy management at the brewery, and offer opportunities for job creation and potentially benefit local food security.
8
Egashira, Hiroaki. "Studies on Utilization of the Wild Tomato Species,Lycopersicon peruvianum(L.)Mill.and L.chilense Dum.for Tomato Breeding." Kyoto University, 1999. http://hdl.handle.net/2433/78109.
Full text
9
Akpolat, Hacer. "Improvement of Tomato Breeding Selection Capabilities using Vibrational Spectroscopy and Prediction Algorithms." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574812034661898.
Full text
10
Julián, Rodríguez Olga. "Exploitation of Solanum chilense and Solanum peruvianum in tomato breeding for resistance to Tomato yellow leaf curl disease." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/36867.
Full textAbstract:
Among viral diseases affecting cultivated tomato, Tomato yellow leaf curl disease (TYLCD) is one of the most devastating. This disease is caused by a complex of viruses of which Tomato yellow leaf curl virus (TYLCV) is regarded as the most important species. Current control strategies to fight viral diseases in tomato are mainly based on genetic resistance derived from wild relatives. In the present thesis, resistance derived from S. chilense and S. peruvianum has been exploited in breeding for resistance to TYLCD. In a previous study, TYLCV-resistant breeding lines derived from LA1932, LA1960 and LA1971 S. chilense accessions were developed. Therefore, the first objective of this thesis was to study the genetic control of the resistance derived from these accessions. With this aim, response to viral infection was assayed in segregating generations derived from the aforementioned resistant lines. The results obtained were compatible with a monogenic control of resistance. Resistance levels were higher in LA1960- and LA1971-derived F2 generations, as shown by slighter symptoms in the resistant plants and a higher number of asymptomatic plants compared with the results obtained in the LA1932-derived F2 generation. It is noteworthy that the level of resistance present in our materials is comparable to or even higher than the levels found in tomato lines homozygous for Ty-1. The response in plants heterozygous for the resistance gene was comparable to the response in homozygous plants for all three sources employed. This implies that the resistance genes derived from all three sources seem to be almost completely dominant. This effect was stronger for LA1971-derived resistance. The results were similar when comparing viral accumulation, as was expected, since a positive correlation was found in these families between viral accumulation and symptom scores. This has important implications in breeding, since the resistance will be used mostly for hybrid development.
Our second objective was to map the loci associated with the major resistance genes identified. A total of 263 markers were screened, 94 of them being polymorphic between both species. Recombinant analysis allowed the resistance loci to be localized on chromosome 6, in a marker interval of 25 cM. This interval includes the Ty-1/Ty-3 region, where two S. chilense-derived TYLCD resistance loci were previously mapped. In order to test if the resistance genes identified in our populations were allelic to Ty-1 and Ty-3, further fine mapping was carried out. A total of 13 additional molecular markers distributed on chromosome 6 allowed 66 recombinants to be identified, and the resistance region to be shortened to a marker interval of approximately 950 kb, which overlaps with the Ty-1/Ty-3 region described previously by other authors. Therefore, the results obtained indicate that closely linked genes or alleles of the same gene govern TYLCV resistance in several S. chilense accessions.
The third objective of the present thesis was to start the construction of a set of introgression lines (ILs) derived from Solanum peruvianum accession PI 126944 into the cultivated tomato genetic background. Once this collection of ILs is developed, it will represent a powerful tool for exploiting the resistance to different pathogens found in this particular accession in addition to other possible characters of interest. The starting plant material consisted of several segregating generations that were derived from two interspecific hybrids previously obtained by our group. Many crosses and embryo rescue were required to obtain subsequent generations due to the high sexual incompatibility that exists between tomato and PI 126944. Several mature fruits from the most advanced generations produced a few viable seeds, although embryo rescue was also employed to obtain progeny. As only a few plants were obtained by direct backcrossing, additional crosses were made in order to increase the number of descendants. A high degree of incompatibility was also found in crosses between sib plants. A total of 263 molecular markers were tested in some generations, 105 being polymorphic between tomato and PI 126944. Available generations were genotyped with these polymorphic markers in order to determine which alleles of S. peruvianum were already introgressed. On average, 79, 78 and 84 % of the S. peruvianum genome was represented in the pseudo-F2, pseudo-F4 and pseudo-F5 generations, respectively, for the markers analyzed. A reduction in the S. peruvianum genome was observed in more advanced generations, such as BC1 (56 %), pseudo-F2-BC1 (60 %) and pseudo-F3-BC1 (70 %). A greater reduction was observed in the pseudo-F3-BC2 generation (33 %). As a consequence of the reduction in the S. peruvianum genome, a loss of incompatibility was observed in some cases. The S. peruvianum genome was almost completely represented among the different plants of the most advanced generations. An evaluation for resistance to TYLCD and Tomato spotted wilt virus (TSWV) was carried out in some of the advanced generations, some of which were resistant to one or both viruses.
In conclusion, we have conducted a successful and deeper exploitation of two wild species with proved resistance to TYLCD, S. chilense and S. peruvianum, identifying and fine mapping new genes of resistance.Julián Rodríguez, O. (2014). Exploitation of Solanum chilense and Solanum peruvianum in tomato breeding for resistance to Tomato yellow leaf curl disease [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/36867
TESIS
Books on the topic "Tomatoes – Breeding"
1
Liedl, Barbara E. Genetics, genomics and breeding of tomato. St. Helier, Jersey, British Channel Islands: Science Publishers, 2012.
Find full text
2
International, Symposium on Integrated Management Practices (1988 Tʻai-nan shih Taiwan). Tomato and pepper production in the tropics: International Symposium on Integrated Management Practices, Tainan, Taiwan, 21-26 March 1988. Taipei: Asian Vegetable Research and Development Center, 1989.
Find full text
3
Adams, William D. The Texas tomato lover's handbook. College Station: Texas A&M University Press, 2011.
Find full text
4
Dąbrowska, Barbara. Genotypowe i ekologiczne uwarunkowania wigoru nasion wczesnych form pomidora (Lycopersicon esculentum Mill.). Warszawa: Wydawn. SGGW, 1992.
Find full text
5
Kole, Chittaranjan, Barbara E. Liedl, Ann Slade, John R. Stommel, and Joanne A. Labate. Genetics, Genomics, and Breeding of Tomato. Taylor & Francis Group, 2013.
Find full text
6
Kole, Chittaranjan, Barbara E. Liedl, Ann Slade, John R. Stommel, and Joanne A. Labate. Genetics, Genomics, and Breeding of Tomato. Taylor & Francis Group, 2013.
Find full text
8
1903-, Daskalov Khristo, and Genchev Gencho Zhelev, eds. Genetichni izsledvanii͡a︡ na kachestvoto na domatite. Sofii͡a︡: Izd-vo na Bŭlgarskata akademii͡a︡ na naukite, 1990.
Find full textBook chapters on the topic "Tomatoes – Breeding"
1
Solanke, Amolkumar U., and P. Ananda Kumar. "Phenotyping of Tomatoes." In Phenotyping for Plant Breeding, 169–204. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8320-5_6.
Full text
2
Den Nijs, A. P. M., B. Maisonneuve, and N. G. Hogenboom. "Pollen Selection in Breeding Glasshouse Tomatoes for Low Energy Conditions." In Biotechnology and Ecology of Pollen, 125–30. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4613-8622-3_21.
Full text
3
Stevens, M. Allen, and C. M. Rick. "Genetics and breeding." In The Tomato Crop, 35–109. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3137-4_2.
Full text
4
Georgiev, H. "Heterosis in Tomato Breeding." In Genetic Improvement of Tomato, 83–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84275-7_8.
Full text
5
Lukyanenko, A. N. "Breeding Tomato for Mechanized Harvesting." In Genetic Improvement of Tomato, 213–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84275-7_17.
Full text
6
Chalukova, M., and H. Manuelyan. "Breeding for Carotenoid Pigments in Tomato." In Genetic Improvement of Tomato, 179–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84275-7_14.
Full text
7
Ultzen, Tineke, Jan Gielen, Fenna Venema, Annemarie Westerbroek, Peter de Haan, Mei-Lie Tan, André Schram, Mart van Grinsven, and Rob Goldbach. "Resistance to tomato spotted wilt virus in transgenic tomato hybrids." In Developments in Plant Breeding, 159–68. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0357-2_20.
Full text
8
Stevens, M. Allen. "Inheritance of Tomato Fruit Quality Components." In Plant Breeding Reviews, 273–311. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118061015.ch9.
Full text
9
Kalloo, G. "Breeding for Environmental Stress Resistance in Tomato." In Genetic Improvement of Tomato, 153–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84275-7_12.
Full text
10
Berry, S. Z., and M. R. Uddin. "Breeding Tomato for Quality and Processing Attributes." In Genetic Improvement of Tomato, 197–206. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84275-7_15.
Full textConference papers on the topic "Tomatoes – Breeding"
1
Izmailova, D. S. "Evaluation of consumer properties of collection samples of tomato under conditions of the Republic of Crimea." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-2020-5-9-10-131-21.
Full textAbstract:
The aim of our research was to study the consumer properties of six varieties of tomatoes bred in the Russian federation. The following tasks were solved to achieve the desired goal: research of the commodity characteristics of tomatoes, studying the safety of tomato varieties, and carrying out an organoleptic assessment of the samples under study. We studied six hybrids, namely ‘Mobil’, ‘Bulat’, ‘Dubok’, ‘Rosalina’, ‘Volgogradets’, and ‘Lakomka’ that were cultivated in the Republic of Crimea. Breeding work was carried out on the experimental fields of the FSBSI “Research Institute of Agriculture of Crimea” in the Department of Breeding and Seed Growing of Vegetable and Melon Crops. Based on our studies, tomato varieties ‘Rosalina’, ‘Lakomka’ and ‘Bulat’, which are high in quality and excellent in taste, are recommended for cultivation in the Republic of Crimea.
2
Салтанович, Татьяна, Людмила Анточ, and А. Дончилэ. "Оценка реакции мужского гаметофита томата на действие патогенов Alternaria Spp." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.84.
Full textAbstract:
Research objective: to identify tomato genotypes resistant to Alternaria on variability and symptoms of male gametophyte on selective backgrounds with cultural filtrate of pathogens Alternaria spp. A set of gamete breeding techniques and genetic-statistical analysis were used in the experiments. Some patterns of the variability and heritability of traits in the tomato male gametophyte have been identified on media with filtrates of pathogens. The differences in the resistance of pollen to the filtrate influence were established; the differentiation and selection of genotypes for further breeding were made. These studies can be used at different stages of the selection process.
3
Pugacheva, I. G. "Experience of microgametophyte selection in tomato breeding." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2019. http://dx.doi.org/10.33952/09.09.2019.92.
Full text
4
Smirnova, A. V. "Effective use of perennial herbage in permanent pasture mode on peat soil." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-121.
Full textAbstract:
Requirements for modern tomato hybrids are increasing both on the part of consumers and on the part of producers. Producers are interested in hybrids with an original fruit shape, color, taste and aroma. The aim of the research was the variety study of indeterminate F1 tomato hybrids of the breeding company "Gavrish" in JSC "Teplichnoe", Tambov region. The research was carried out in 2017-2018. in summer-autumn turnover in the conditions of JSC "Teplichnoye" in the Tambov region in accordance with generally accepted recommendations for research with vegetable crops in greenhouses. Based on the results of the study of tomato hybrids of the selection of the "Gavrish" company,the enterprise decided to increase the area in the summer-autumn turnover under the F1Panther hybrid.
5
Chupkin, K. A., V. I. Terekhova, and A. V. Konstantinovich. "Study of tomato hybrids in summer-autumn turnover in JSC Teplichnoye, Tambov region." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-122.
Full textAbstract:
Requirements for modern tomato hybrids are increasing both on the part of consumers and on the part of producers. Producers are interested in hybrids with an original fruit shape, color, taste and aroma. The aim of the research was the variety study of indeterminate F1 tomato hybrids of the breeding company "Gavrish" in JSC "Teplichnoe", Tambov region. The research was carried out in 2017-2018. in summer-autumn turnover in the conditions of JSC "Teplichnoye" in the Tambov region in accordance with generally accepted recommendations for research with vegetable crops in greenhouses. Based on the results of the study of tomato hybrids of the selection of the "Gavrish" company, the enterprise decided to increase the area in the summer-autumn turnover under the F1Panther hybrid.
6
Kozlova, I. V. "USE OF ARTIFICIAL CLIMATE CHAMBER TO REDUCE THE PERIOD OF TOMATO HYBRID Development." In «Breeding, seed production, cultivation technology and processing of agricultural crops». Federal State Budgetary Scientific Institution Federal Scientific Rice Centre, 2021. http://dx.doi.org/10.33775/conf-2021-220-223.
Full text