Academic literature on the topic 'Seedling dry weight and Tomato'

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Journal articles on the topic "Seedling dry weight and Tomato"

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Massimi, Mohunnad, and Laszlo Radocz. "Preliminary test: Evaluation and selection of tomato (Lycopersicon esculentum Mill.) varieties resistant to drought and powdery mildew." Acta Agraria Debreceniensis, no. 2 (December 8, 2021): 33–37. http://dx.doi.org/10.34101/actaagrar/2/9746.

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Powdery mildew (Leveillula taurica) and (Oidium neolycopersici) are two harmful fungi that invade the tomato (Lycopersicon esculentum Mill.) plant and grow in dry conditions. Under the influence of polyethylene glycol 6000 at a concentration of 12%, the total seedlings fresh weight, total seedlings dry weight, seedling growth rate of one seedling, seedling length, and tissue water content percentage for three tomato varieties were assessed. Despite the superiority of the (Mobil) tomato variety in terms of numerical values, the results revealed no significant differences between varieties. As a result, (Mobil) has greater vigor under environmental drought stress of lower osmotic stress than other tomato varieties. More work is required to evaluate the research selection of varieties resistant to biotic stresses in dry areas, such as powdery mildew disease.
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Ahmadu, Onyinoyi. Martha, Vincent Uchenna Ezewammadu, Uche Emmanuel Augustine, and Sani Abdullahi Mohammed. "Combined effect of hydro priming and root pruning on plant dry matter of tomato (Lycopersicon esculentum) seedlings." International Journal of BioSciences, Agriculture and Technology (IJBSAT) ISSN: 0975 - 4539 11, no. 1 (2020): 1–7. https://doi.org/10.5281/zenodo.3648285.

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Combined effect of hydro priming and root pruning on plant dry matter of tomato (Lycopersicon esculentum) seedlings Ahmadu Onyinoyi. Martha, Ezewammadu Vincent Uchenna, Augustine Uche Emmanuel, Mohammed Sani Abdullahi  National Biotechnology Development Agency, Bioresources Development Centre, Odi, PMB 170, Bayelsa State, Nigeria martha_ahmadu@yahoo.com, urchmanvinno@yahoo.com, austinemmanueluche@yahoo.com, san4fat@yahoo.com  IJBSAT (2020), 11(1):1-7 Abstract This study was conducted as completely randomized design with three replications on plant dry matter of tomato seedling at Bioresources Development Centre, Odi, Bayelsa State, Nigeria. The factor of study included different time hydro priming (control, 24 h, 48 h, 72 h and 96h) and afterwards roots were pruned 25 DAS (rps 1/3-25 DAS and 2/3-25 DAS) and 32 DAS seedlings (rps 1/3-22 DAS and 2/3-32 DAS). The characters measured were: total plant dry matter, dry leaf weight, dry stem weight, dry root weight and root: shoot ratio of mean, min, max and CV. The results showed that hydropriming and root pruning significantly affected the growth of tomato seedlings. The total plant dry matter (W) of non root pruned seedlings for all primed seeds was significantly higher compared with primed seed with root pruned. The highest average dry matter (1.15g and 1.17g) was obtained from seeds primed for 96h (rps 1/3-25DAS and nps 32 DAS respectively) while the lowest average dry matter (0.37g and 0.34g) was obtained from seeds primed for 96h (rps 2/3-25 DAS and same 96h rps 2/3-32 DAS respectively). Mean comparison of root-shoot ratio pruned for 96hrs (rps 2/3-25DAS) and 72hrs (rps 2/3-32 DAS) showed the highest and lowest mean ratio respectively. Leaf and stem weight of all primed seeds including control all exhibited significant variations irrespective of the severity of root pruning and days after sowing.  The results demonstrated that the interaction between the different hydropriming duration and root pruning of varying severity of tomato seedlings had significant effect on its plant dry matter. Key words: Hydro priming, pruning, Seedling dry weight and Tomato. URL: https://www.ijbsat.org/papers-published/ijbsat-2020-volume-11-issue-1
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Zhang, Haoyu, Chen Miao, Cuifang Zhu, et al. "Effects of Different Cultivation Facilities and Planting Densities on Tomato Seedling Production." HortScience 60, no. 7 (2025): 1065–74. https://doi.org/10.21273/hortsci18568-25.

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Plant factories with precise control systems create a stable microenvironment, making them essential for cultivating stronger, more uniform seedlings needed for high-quality production. Among the various factors influencing seedling quality, planting density plays a critical role as a key management practice. To explore this relationship, the combined effects of cultivation facilities and planting densities on tomato (Solanum lycopersicum L.) seedlings were investigated in this study. Two facilities were compared: a plant factory with artificial light (PFAL) and a glasshouse with natural light (GHNL). The results revealed that the specific leaf area, health index, ratio of dry weight to fresh weight, and radiation use efficiency (RUE) were predominantly affected by planting density, whereas plant height, leaf area, chlorophyll content, and epicotyl and hypocotyl lengths were mainly influenced by the cultivation facilities. The stem diameter was minimally affected by these conditions. The epicotyl and hypocotyl lengths were significantly greater in the GHNL, while the stem diameter remained unchanged. Seedlings grown in the GHNL had a higher fresh weight, but similar dry weight compared with those grown in the PFAL, with the lowest leaf-to-stem weight ratio observed in the GHNL for both fresh and dry weights. Among treatments, natural light with low planting density (NL, 80 seedlings per tray) produced the highest dry weight, whereas artificial light with high planting density (AH, 240 seedlings per tray) resulted in the lowest. Both the health index and the ratio of dry weight to fresh weight were enhanced with low planting density. The PFAL significantly increased the chlorophyll and carotenoid levels. Furthermore, the RUE of seedlings with high planting density was significantly greater than seedlings with low planting density. The combination of a higher planting density and the PFAL appears to offer certain benefits for seedling production, including graft suitability and production costs.
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Ghimire, Santosh, Sapana Acharya, Chiran Adhikari, Suman Chaurel, and Randhir Paudel. "Effect of Growing media on Germination and Seedling Growth of Four Different Varieties of Tomato [Solanum lycopersicum (L.)] in Khumaltar Lalitpur, Nepal." Asian Journal of Agricultural and Horticultural Research 11, no. 4 (2024): 49–61. http://dx.doi.org/10.9734/ajahr/2024/v11i4339.

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Aims: Food security is one of the global challenges in this developing world, and the quality of seedlings influences the overall production of vegetables. Thus, the core objective of the study was to determine the impact of various growing media on high-quality seedling production and to analyze whether these media were variety-specific or not. Study Design: A two-factor factorial experiment using a completely randomized design (CRD) was conducted to assess the interaction effects of both factors. Place and Duration of Study: The experiment was conducted at the seedling production greenhouse of Vegetable Crops Development Centre-Khumaltar Lalitpur, Nepal in March, 2023. Methodology: Six different combinations of growing media: soil, sand + soil + FYM, sand + soil + vermicompost, coco peat, coco peat + FYM, and coco peat + vermicompost, and four different varieties of tomato: Srijana, Khumal-2, Khumal-3 and Monoprecos were tested in a two-factor factorial completely randomized design (CRD) with three replications for each combination of treatments. Results: The results of this experiment revealed that seeds of all varieties of tomato on coco peat and vermicompost were successful in better seedling growth and seedling health. Also, growing media with coco peat led to a higher germination percentage (72.92%), lower mean germination time (8.922 days), and higher speed of germination (1.745). Coco peat + vermicompost showed superior seedling growth parameters, including shoot length (7.852 cm), root length (7.123 cm), root to shoot ratio (1.161), dry weight (0.1781 g), fresh weight (1.483 g), and dry matter accumulation (12.90%). Among the varieties, Monoprecos exhibited the highest germination percentage (66.1%) and seed vigor index (933.8), although it had the highest mean germination time (10.26 days). Shoot length, speed of germination, root length, and root to shoot ratio were statistically similar among varieties. Fresh and dry weights were higher in the Srijana variety, while dry matter accumulation did not vary significantly among varieties. Conclusion: Vermicompost in the presence of coco peat has a significant impact on the germination and growth of tomato seedlings. No variety-specific growing media was recommended for seedling production in tomatoes. Based on the results, it is recommended to explore the effect of different compositions of vermicompost on tomato seedlings for healthy seedling production.
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Maynard, Elizabeth T., Wenjing Guan, Petrus Langenhoven, and Lori Hoagland. "Tomato Seedling Performance in Commercial Organic Growing Media." HortTechnology 34, no. 1 (2024): 80–91. http://dx.doi.org/10.21273/horttech05244-23.

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Healthy transplants are critical to productivity in the field. For certified organic production in the United States, seedlings must be grown in media that meet the standards of the US Department of Agriculture’s National Organic Program. Many commercial organic media options are available, they vary substantially in composition, and it is unknown to what extent this influences seedling performance. This project compared tomato (Solanum lycopersicum L.) seedling emergence and growth in seven commercially available media for organic production and evaluated posttransplant performance. Tomato seedlings were grown in greenhouses at Wanatah, West Lafayette, and Vincennes, IN, USA. Chemical characteristics of the media measured in saturated media extract ranged as follows: pH 5.2–7.5; electrical conductivity (EC) 0.79–4.68 dS·m−1; 1–332 ppm nitrate-nitrogen, 5–69 ppm phosphorus, 41–451 ppm potassium, 78–714 ppm calcium, and 25–121 ppm magnesium. Higher media EC was associated with slower and less uniform seedling emergence and reduced total emergence. Seedling aboveground dry weights were significantly greater in media that contained compost. Relative performance in media containing compost varied across trials. The aboveground dry weight of tomato seedlings 4 weeks after transplanting did not differ for seedlings started in the five compost-based media, and those plants were significantly larger than plants started in the two media without compost. Larger plants tended to flower and set fruit earlier. Media testing protocols that predict nutrient supply over the production cycle could likely improve management in organic transplant production.
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Akter, Amaily, Kee Zuan Ali Tan, Susilawati Binti Kasim, et al. "Influence of Beneficial Bacterial Inoculation on Nitrogen Concentration and Tomato Seedling Growth Under Glasshouse Conditions." Sains Malaysiana 52, no. 4 (2023): 1069–85. http://dx.doi.org/10.17576/jsm-2023-5204-04.

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Many types of soil bacteria through antagonistic activity, thrive in the rhizosphere of plants or surround the tissues of plants and encourage plant development and reduce the nematode population. Bacteria as such are commonly known as Plant Growth-Promoting Rhizobacteria (PGPR). The purpose of this research was to determine Bacillus spp. inoculations impact on tomato seedling development with varying rates of chemical nitrogen-fertilizer. To minimize the recommended quantity of N fertilizer for tomato seedling development, a small pot experiment with selected PGPB was undertaken with varying amount of N fertilizer. Plant growth-promoting bacteria (PGPB) labeled as UPMB10 and UPMRB9 (identified as Bacillus subtilis and Bacillus tequilensis, respectively) were utilized as microbial inoculants because they showed a significant improvement in seedling growth and N concentration in tomato plant tissues in a pot culture investigation. These microbial inoculants significantly improved the development of the plants, stem length, root length, leaves number, dry weight of shoots (stem, leaves), dry weight of roots, SPAD value, N concentration in tissues, and soil bacterial population. Bacteria-treated seedlings with 50% N fertilizer significantly increased stem length (69.07%), root length (78.51%), leaves number (68.58%), shoots (92.45%, 90.39%, stem and leaves, respectively), roots (73.33%), SPAD value (50.31%), and N concentration in plant tissues (63.79%) as compared to the uninoculated control. The findings also showed that inoculation of the Bacillus spp. tomato seedlings could save up to 50 percent of the recommended rate of chemical N fertilizer without affecting tomato seedling growth. The findings of this study suggest that the amount of nitrogen fertilizer given during tomato seedling development can be reduced by half, resulting in increased soil health and reduced environmental pollution.
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Jarak, Mirjana, Simonida Djuric, and Biljana Djordjevic. "Benefits of inoculation with azotobacter in the growth and production of tomato and peppers." Zbornik Matice srpske za prirodne nauke, no. 119 (2010): 71–76. http://dx.doi.org/10.2298/zmspn1019071j.

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The aim of this research was to investigate the effects of Azotobacter chroococcum in tomato and pepper growth and production by using two types of inoculation - seed inoculation and seedling inoculation. The effect of inoculation was observed thirty days after sowing, thirty days after transplanting, and in the phase of technological maturity. The following were measured: height of the plants, dry matter of the plants and number and the weight of the fruits. Inoculation had a positive effect on these in both plants. With tomato, better results were achieved when seedlings were inoculated. With pepper, the length of the plant and the dry matter were greater with seedling inoculation, whereas the number and the weight of the fruits were greater with seed inoculation.
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Pertuit, A. J., Jerry B. Dudley, and Joe E. Toler. "Leonardite and Fertilizer Levels Influence Tomato Seedling Growth." HortScience 36, no. 5 (2001): 913–15. http://dx.doi.org/10.21273/hortsci.36.5.913.

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New Mexico-mined raw leonardite was characterized by comparing it with the International Humic Substances Society's Standard Leonardite. In the first experiment, adding as little as 1/64 leonardite (v/v) to a sand medium increased tomato [Lycopersicon esculentum (L.) Mill. `Mountain Pride'] root and shoot growth compared with plants produced with fertilizer alone. Growth increased linearly with increasing leonardite levels, from 0% to 25%; however, 50% leonardite inhibited growth. In a second experiment, leonardite alone had no effect on plant height, shoot or root fresh and dry weight, or total leaf area, but stimulated growth when combined with a complete fertilizer. Adding 1/3 leonardite (v/v) (the highest level) and a complete fertilizer increased plant height 40%, total leaf area 160%, shoot fresh weight 134%, root fresh weight 82%, shoot dry weight 133%, and root dry weight 400%.
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MASSON, JEAN, ANDRÉ GOSSELIN, and NICOLAS TREMBLAY. "EFFETS DE LA FERTILISATION AZOTÉE SUR LA CROISSANCE DE TRANSPLANTS DE TOMATE ET DE LAITUE CULTIVÉS EN PLATEAUX MULTICELLULAIRES AVEC OU SANS ÉCLAIRAGE D’APPOINT." Canadian Journal of Plant Science 70, no. 4 (1990): 1199–205. http://dx.doi.org/10.4141/cjps90-148.

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Tomato (Lycopersicon esculentum Mill. ’Springset’) and lettuce (Lactuca sativa L. ’Ithaca’) transplants were grown under natural and supplemental light (100 μmol m−2 s−1 PAR) and fertilized with four nitrogen doses (100, 200, 300, and 400 mg L−1 N). Supplemental light increased tomato shoot dry weight, shoot percent dry matter, leaf area, root dry weight, and root-to-shoot ratio. Lettuce transplants showed increased shoot and root dry weight as well as leaf area when supplemental light was present. For both species, nitrogen increased shoot dry weight and leaf area, but decreased shoot percent dry matter and root-to-shoot ratio. High nitrogen doses increased tomato and lettuce shoot dry weight and leaf area chiefly under supplemental light.Key words: Lycopersicon esculentum, Lactuca sativa, pretransplanting nutritional conditioning, seedling
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LIPTAY, A. "REDUCTION OF SPINDLINESSS OF TOMATO TRANSPLANTS GROWN AT HIGH DENSITIES." Canadian Journal of Plant Science 65, no. 3 (1985): 797–801. http://dx.doi.org/10.4141/cjps85-104.

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The spindliness of tomato transplants grown at high densities in a greenhouse was reduced by an ethephon spray or intermittent vibration of the seedlings with air movement. Either treatment reduced the following growth parameters: plant height, height-to-stem-diameter ratio, stem diameter, fresh weight, and dry weight. One ethephon spray alone reduced the height and improved the stalkiness of the seedling. Vibration of the plants with air movement had an even greater height-reduction effect while a combination of the two treatments was the most effective in producing the stalkiest transplants.Key words: Lycopersicon esculentum, plant height, stem diameter, tomato, growth regulator
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Book chapters on the topic "Seedling dry weight and Tomato"

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Das, Priyanka, Rajeev N. Bahuguna, Rohit Joshi, Sneh Lata Singla-Pareek, and Ashwani Pareek. "In search of mutants for gene discovery and functional genomics for multiple stress tolerance in rice." In Mutation breeding, genetic diversity and crop adaptation to climate change. CABI, 2021. http://dx.doi.org/10.1079/9781789249095.0045.

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Abstract Mutation breeding is a commanding tool, which has been adapted to generate altered genetic material to study functional genomics, including understanding the molecular basis of stress tolerance. Hitherto, several rice lines have been generated through mutagenesis and the mutated genes responsible for the 'gain of function' in terms of plant architecture, stress tolerance, disease resistance and grain quality have been characterized. Oryza sativa L. cv. IR64 is a high-yielding rice cultivar but sensitive to abiotic stresses such as acute temperatures, salinity and drought. In this study, a population of rice IR64 mutants was generated using gamma irradiation. The population was then subjected to a preliminary phenotypic screening under abiotic stresses such as heat and salinity at the seedling stage. On the basis of root length, shoot length, fresh weight, dry weight and chlorophyll measurements, we identified eight 'gain-of-function' mutant lines and used them for further biochemical and molecular characterization. Phenotyping results demonstrated that the identified mutant plants have gained the potential to thrive under heat and salinity conditions. This information would be of wide scientific interest and helpful for developing novel cultivars able to maintain yield in saline, hot and dry areas.
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Shanmugavelu, Mathipriya, and Ganesan Sevugaperumal. "Screening and Potential Uses of Contaminated Spent Mushroom (Pleurotus spp.)." In Emerging Contaminants. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.93863.

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The commercial production of mushrooms generates a co-product, a virtually inexhaustible supply of spent mushroom substrate (SMS). It represents an ideal growth medium for plants and plant disease suppressive quality. Here we discussed about the contaminated microbial flora of SMS, potential antifungal and plant growth promoting activities, the results of these findings were also discussed in relation to the usage of SMS as a potential product for organic farming. SMS contained moisture content 72%, EC 1.75 mmho.cm−1 and had pH of 6.1. The cellulose and hemicellulose content of paddy straw substrate were 30.25%, 23.18% and 15.31% dry weight respectively. Growth in terms of root and shoot weight of the seedlings of green gram, black gram, tomato and chili were significantly higher when grown in 60% SMS amended soil. Spent mushroom compost from Pleurotus eous used in this study harbored bacterial population including, Bacillus sp., Clostridium sp., Pseudomonas sp. and E. coli. Bacterial isolate B1 was identified as Bacillus sp., isolate B2 was identified as Clostridium sp., isolate B3 as Pseudomonas sp. and B4 as Escherichia coli. These bacterial strains showed significant antagonistic activity against soil borne pathogenic fungi viz., Fusarium sp., Alternaria sp., Phytophthora sp. and Aspergillus sp.
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Chahdi, Abdellatif Ouazzani, Sanae Kribel, Fadoua Berber, et al. "Biostimulant Effect of Trichoderma Asperellum-Based Product on Tomato Plants and Its Acute Toxicity." In Advances in Bioinformatics and Biomedical Engineering. IGI Global, 2025. https://doi.org/10.4018/979-8-3693-9450-2.ch003.

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A biostimulant product containing 2% Trichoderma asperellum conidia improves the agronomic parameters of the tomato plants treated compared with the control. The lengths, fresh and dry weights of the aerial and root parts, reached 115/90.33 cm; 58/39,33 cm; 205.43/73.87 g; 157.93/88.87 g. The product was also tested in warm-blooded animals. Groups of fasted, 8–12-week-old rats “Wistar” line were given single doses of 0, 1/4, 1/2, 3/4 and 1 (2%) calculated according to their body weight. During 90 days of treatment, no acute toxicity was detected, and the lethality rate remained null. The average body weight was normal compared to the control rats varying between 99.6 g - 133.33 g after 14 days and 218 g - 316 g after 90 days.
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Archana, Preetam Verma, and Nalini Pandey. "Impact of Inadequate Concentration of Boron in Seed Storage Proteins Content in Oilseed Crops." In Grain and Seed Proteins Functionality. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95873.

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For the estimation of Impact of inadequate concentration of boron in seed storage proteins content in oilseed crops, a sand culture experiment was designed and all the three crops i.e. soyabean, mustard and linseed were grown under sufficient and insufficient boron treatment till maturity. Seed germination and seed storage protein concentration was determined in seeds after the harvesting of crops. Earlier oilseed crops like soyabean, mustard and linseed are cultivated for oil production but at this time these crops are reliable source of protein also and are real asset for human dietary protein. The storage protein present in seeds varies from ~10% (in cereals) to 40% (in certain legumes and oilseeds) of dry weight. Seeds contain one or more groups of proteins that are present in high amounts and that serve to provide a store of amino acids and sulfur required during germination and seedling growth. Quality of seeds is driven by the total protein content present in the form of storage reserve in seeds. There are major four types of storage proteins known as- globulins (insoluble in water), albumins (soluble in water), prolamins (soluble in alcohol) and glutelins (soluble in dilute acid and alkaline medium). Globulins and albumins are the major storage seed proteins of legumes and oilseed crops whereas prolamins and glutelins are mostly found in cereal seeds. Functionally boron is crucial micronutrient for a considerable amount of agricultural yield. Seed reserves (proteins, carbohydrates, starch, lipids) of post harvested seeds are depended on the appropriate boron supply during cropping. Boron insufficiency in oilseed crops found to be an inhibitory factor for seed vigor and seed quality. So this chapter deals with the effect of boron deprivation on seed quality in terms of germination capacity and seed storage protein reserves in the post harvested seeds of soybean, mustard and linseed.
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Conference papers on the topic "Seedling dry weight and Tomato"

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Jovovic, Mirjana, Verica Prodanovic, Aleksandra Govedarica-Lucic, and Zoranka Malesevic. "EFFECT OF APPLAYING OF HUMIC ACID ON SEEDLING GROWTH OF TOMATO." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.039j.

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This study was undertaken to determine the effects of humic acid on the growth seedling of two tomato cultivars CeylandoF1 and RallyF1, under greenhouse conditions. Treatment with „Humistar“ was started in the two-leaf stage of the plant. One level of humic acid of 20 ml l-1 was applied to the seedling growing media and each seedling of the species was treated every ten days until transplanting directly into the soil in greenhouse.The higest growth rate: leaf (weight), stem (diameter and weight) and root (weight and lenght) growth were optained in cultivar RallyF1 as compared to the control and leaf, stem and root weight compared to Ceylando F1 cultivar.General, the results showed that humic acid influenced better root development in both examined tomato cultivars.
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Abouelezz, Ahmed Helmy Hassan, and Talaat Ahmed. "The Efficacy of Two Household Cleaning and Disinfecting Agents on Lentil (Lens culinaris Medik) and Faba bean (Vicia faba) Seed Germination." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0023.

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A germination test of Vicia faba and Lens culinaris seeds under the effect of bleach and vinegar was conducted for seven days, and the observations were recorded daily. The completely randomized design (CRD) was used to examine the germination with three replicates at the lab conditions. Six germination parameters were measured, including germination percentage (GP), germination index (GI), mean germination time (MGT), mean germination rate (MGR), vigour index (VI), plus the fresh weight (FW) and dry weight (DW) of Vicia faba and Lens culinaris seeds. As a legume crop seeds model, the efficacy of four treatment levels from 0.005% to 0.5% of bleach and vinegar on the germination was tested. A chemical analysis was performed using the ion chromatography (IC) to evaluate the effect of chloride and acetate anions up-take on the seedling germination in addition to other essential nutrients. A significant inhibition in seedling growth was observed with increasing the treatment concentration. The maximum inhibition was recorded for both seeds at 0.5%, followed by 0.1% levels, while a positive effect was represented with the lower concentrations. The chemical analysis of the up-taking active ingredients was corroborated by the germination outputs.
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Momčilović, Jovana, Dragana Jakovljević, Milica Kanjevac, and Biljana Bojović. "FIZIOLOŠKE KARAKTERISTIKE RASTENJA PŠENICE (Triticum aestivum L.) U USLOVIMA IN VITRO." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.503m.

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This study aimed to examine the effect of different media - Murashige Skoog (MS) and Gamborg (B5) on the growth and development of in vitro seedling cultures of wheat (Triticum aestivum L.). The effects were evaluated through the measurement of root and shoot length, fresh and dry mass, as well as through the determination of the concentration of photosynthetic pigments (chlorophyll a, chlorophyll b, and carotenoids). The obtained data indicate that MS has better effects on the growth and development of wheat seedlings, since longer shoot length, and better fresh weight were observed on seedlings from this type of media. Additionally, higher chlorophyll b concentration and lower carotenoid concentration were measured in wheat leaves grown on MS medium. It can be concluded that MS is more suitable for establishing the initial in vitro culture of wheat compared to the B5 medium.
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Abass Hussein, Haifaa. "Studying the effect of some natural materials on the germination and growth of chickpea plant (cricer arietinum L.)." In X INTERNATIONAL CONGRESS OF PURE AND APPLIED TECHNOLOGICAL SCIENCES. Rimar Academy, 2023. http://dx.doi.org/10.47832/minarcongress10-4.

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A laboratory experiment was carried out in one of the laboratories of the horticulture department, college of agriculture, Al-qadisiya university, during the spring season of the year 2023, with the aim using environmentally friendly natural materials instead of chemical fertilizers and studying their effect as fertilizer for chickpea plant (cricer arietinum L). Acomplete randomized design (CRD) was used with three replications and one factors, as the treatments included (T1 control distilled water, T2 banana peels fertilizer, T3 eggs shell fertilizer and T4 mixture of two fertilizers. Results showed that the treatment of the plant with mixture natural fertilizer gave agood result compared to the control treatment 100% ,while it gave the lowest germination rate when the control treatment 91.6 % without significant differences.The results were also the highest in the number of branching of the root of the seedling and in the same treatment 18.6 branch ,while the comparison treatment gave the lowest number of branch and reached 14.3 branch without significant differences .the length of the root stock and feather ,its dry weight and the strength of the seedling also had the highest rates when theT4 treatment reached 12.1 cm ,4cm ,0.299 mg .0.322 mg and 1.7000 respectively ,with significant differnces ,while the rates were lower when the control (T1 treatment )the comparison an ounted to 5.5 cm ,2.3 cm 0.142 mg 0.133 mg and 726.0 resectively
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Elias, Aishah, Sahilah Abd Mutalib, and Wan Aida Wan Mustapha. "Effect of empty fruit bunch to the accumulated plant height, mass of fresh and dry weight of tomato plant treated with organic and inorganic fertilizer." In THE 2016 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Author(s), 2016. http://dx.doi.org/10.1063/1.4966779.

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Рыбаков, К. В., В. Г. Краснов, and М. И. Смышляева. "SURVIVAL ABILITY AND GROWTH OF EXPERIMENTAL ENGLISH OAK (QUERCUS ROBUR L.) COMPOSED OF SEEDLINGS WITH CLOSED ROOT SYSTEM GROWN IN DIFFERENT NUTRITIOUS SUBSTRATES." In Лесные экосистемы в условиях изменения климата: биологическая продуктивность и дистанционный мониторинг. Crossref, 2019. http://dx.doi.org/10.25686/2683.2019.5.58819.

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В статье представлен опыт создания опытных культур дуба черешчатого с использованием сеянцев с закрытой корневой системой (ЗКС), выращенных на различных питательных субстратах на территории питомника лесных и декоративных древесных растений Азяково Ботанического сада-института Поволжского государственного технологического университета. Цель исследования выявить оптимальный вид субстрата при выращивании сеянцев дуба черешчатого с закрытой корневой системой для последующего эффективного создания лесных культур, соответствующего по экономическим и качественным требованиям производимых сеянцев данной породы в условиях зоны хвойно-широколиственных лесов Среднего Поволжья. Приведены характеристики: агрохимических свойств субстратов, грунтовой всхожести желудей дуба черешчатого, устойчивости корнезакрывающего кома субстрата, массы сухого вещества основных фракций сеянцев дуба, а также биометрические показатели сеянцев в зависимости от используемого при выращивании вида субстрата. Исследование включало проведение инвентаризации опытных объектов, которую проводили в октябре 2016 и 2017 гг., полученные данные были обработаны с использованием методов математической статистики. В результате определено, что по показателям приживаемости данные достоверно отличаются по вариантам опыта F расч. F табл. (7,14 2,51), доля влияния фактора 75,93 . Была произведена оценка вариантов опыта по комплексу показателей имеющие влияние на рост дуба в теплице и в лесных культурах. Определены оптимальные варианты субстрата 3 и 8. Выявлена зависимость приживаемости растений и плотности сложения субстрата в вариантах опыта. Оптимальная плотность сложения находится в пределах от 0,4-0,6 г/см3 . Также выявлена зависимость кислотности почвенного раствора субстрата и приживаемости растений в лесных культурах. Оптимальный уровень кислотности используемых субстратов от 5,0-6,5. This paper presents the approach to establishing experimental plantations of English oak from seedlings with a closed root system grown on various nutrient substrates on the territory of the nursery of forest and decorative woody plants Azyakovo of Volgatech Botanical Garden-Institute. The research aims to identify the optimal type of substrate for growing the seedlings of English oak with a closed root system for the effective establishment of forest plantations that meet economic and quality requirements to these types of seedlings on the territory of coniferous-broad-leaved forests of the Middle Volga Region. The paper analyses agrochemical properties of substrates, germination of acorns, stability of root-closing balls, dry weight of the main fractions of oak seedlings, and their biometric indicators depending on the type of substrate used. The research involved the inventory of experimental objects, which was carried out in October 2016 and 2017. The data obtained were processed using mathematical statistics methods. The research revealed that the data differ significantly in terms of survival rates for F calculated value F table value (7.14 2.51), the influence of the factor is 75.93. A set of indicators that impact the growth of oak in green- 82 houses and on forest plantations have been assessed. The optimal substrate compositions have been determined - No. 3 and No. 8. The dependence of plant survival rate on the density of substrate composition in the variants under study have been determined. The optimal substrate composition density varies in the range between 0.4 g/cm3 and 0.6 g/cm3 . The correlation between the substrate acidity and seedling survival rate on forest plantations has also been revealed. The optimal acidity level of the substrates used varies from 5.0 to 6.5.
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Reports on the topic "Seedling dry weight and Tomato"

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VanderGheynst, Jean, Michael Raviv, Jim Stapleton, and Dror Minz. Effect of Combined Solarization and in Solum Compost Decomposition on Soil Health. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7594388.bard.

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In soil solarization, moist soil is covered with a transparent plastic film, resulting in passive solar heating which inactivates soil-borne pathogen/weed propagules. Although solarization is an effective alternative to soil fumigation and chemical pesticide application, it is not widely used due to its long duration, which coincides with the growing season of some crops, thereby causing a loss of income. The basis of this project was that solarization of amended soil would be utilized more widely if growers could adopt the practice without losing production. In this research we examined three factors expected to contribute to greater utilization of solarization: 1) investigation of techniques that increase soil temperature, thereby reducing the time required for solarization; 2) development and validation of predictive soil heating models to enable informed decisions regarding soil and solarization management that accommodate the crop production cycle, and 3) elucidation of the contributions of microbial activity and microbial community structure to soil heating during solarization. Laboratory studies and a field trial were performed to determine heat generation in soil amended with compost during solarization. Respiration was measured in amended soil samples prior to and following solarization as a function of soil depth. Additionally, phytotoxicity was estimated through measurement of germination and early growth of lettuce seedlings in greenhouse assays, and samples were subjected to 16S ribosomal RNA gene sequencing to characterize microbial communities. Amendment of soil with 10% (g/g) compost containing 16.9 mg CO2/g dry weight organic carbon resulted in soil temperatures that were 2oC to 4oC higher than soil alone. Approximately 85% of total organic carbon within the amended soil was exhausted during 22 days of solarization. There was no significant difference in residual respiration with soil depth down to 17.4 cm. Although freshly amended soil proved highly inhibitory to lettuce seed germination and seedling growth, phytotoxicity was not detected in solarized amended soil after 22 days of field solarization. The sequencing data obtained from field samples revealed similar microbial species richness and evenness in both solarized amended and non-amended soil. However, amendment led to enrichment of a community different from that of non-amended soil after solarization. Moreover, community structure varied by soil depth in solarized soil. Coupled with temperature data from soil during solarization, community data highlighted how thermal gradients in soil influence community structure and indicated microorganisms that may contribute to increased soil heating during solarization. Reliable predictive tools are necessary to characterize the solarization process and to minimize the opportunity cost incurred by farmers due to growing season abbreviation, however, current models do not accurately predict temperatures for soils with internal heat generation associated with the microbial breakdown of the soil amendment. To address the need for a more robust model, a first-order source term was developed to model the internal heat source during amended soil solarization. This source term was then incorporated into an existing “soil only” model and validated against data collected from amended soil field trials. The expanded model outperformed both the existing stable-soil model and a constant source term model, predicting daily peak temperatures to within 0.1°C during the critical first week of solarization. Overall the results suggest that amendment of soil with compost prior to solarization may be of value in agricultural soil disinfestations operations, however additional work is needed to determine the effects of soil type and organic matter source on efficacy. Furthermore, models can be developed to predict soil temperature during solarization, however, additional work is needed to couple heat transfer models with pathogen and weed inactivation models to better estimate solarization duration necessary for disinfestation.
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