Log in

Relevant bibliographies by topics / Egypt Cotton plant and culture / Journal articles

To see the other types of publications on this topic, follow the link: Egypt Cotton plant and culture.

Journal articles on the topic 'Egypt Cotton plant and culture'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Egypt Cotton plant and culture.'

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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ismail, I. M. K., Tahany M. A. Abdel Rahman, Esmat E. A. Elwy, and M. E. Osman. "Effect of the triazine herbicides Goltix and Igran on cell wall degradation by some fungi." Canadian Journal of Botany 67, no. 3 (March 1, 1989): 834–38. http://dx.doi.org/10.1139/b89-112.

Full text

Abstract:

Fifteen-day-old tomato and cotton hypocotyls were susceptible to degradation by the three fungi Aspergillus fumigatus, Fusarium oxysporum f.sp. lycopersici, and Fusarium oxysporum f.sp. vasinfectum. The last two fungi cause tomato and cotton wilts in Egypt. Addition of various concentrations (50–1200 ppm) of Goltix (4-amino-3-methyl-6-phenyl-1,2,4-triazine-5 (4H)-one(IUPAC)) inhibited the tomato cell wall degradation by the tested fungi except its pathogen, while the doses (50–1200 ppm) of Igran (4-ethylamino-2-tert-butylamino-6-methylthio-5-triazine) inhibited tomato cell wall degradation by the three fungi. On the other hand, the addition of various concentrations of Goltix to cotton cell wall culture increased the susceptibility of the cell wall to the degrading enzymes of the three fungi, while Igran inhibited the degradation by the two Fusarium species. The data also emphasized the presence of xylanase, arabanase, mannanase, galactanase, and cellulase enzymes in both tomato and cotton cell wall cultures of the tested fungi. Higher doses of either Goltix or Igran (800 and 1200 ppm) completely inhibited the activation of arabanase, xylanase, and mannanase, while cellulase and galactanase were less sensitive to the applied herbicide doses.

APA, Harvard, Vancouver, ISO, and other styles

2

Palou, L., C. Montesinos-Herrero, V. Taberner, and J. Vilella-Esplá. "First Report of Alternaria alternata Causing Postharvest Black Spot of Fresh Date Palm Fruit in Spain." Plant Disease 97, no. 2 (February 2013): 286. http://dx.doi.org/10.1094/pdis-08-12-0742-pdn.

Full text

Abstract:

Commercial production of date palm fruit (Phoenix dactylifera L.) for fresh consumption has increased in the grove of Elx (Alacant Province, southeast Spain) after the successful development of tissue culture technologies and induced ripening and cold storage protocols. In a survey of losses after harvest, disease symptoms consisting of superficial, small, and firm black spots irregularly distributed throughout the fruit skin were observed in commercially handled and cold-stored fruit. At room temperature, superficial lesions expanded and produced dark mycelium. The potential causal agent was transferred to potato dextrose agar (PDA), incubated at 25°C in darkness, and subcultured on PDA. The identification was performed at the Spanish Type Culture Collection (CECT, University of Valencia, Spain) using colony morphology on PDA and malt extract agar at 26 or 37°C. At 26°C, the fungus rapidly produced cottony white mycelium that turned olivaceous and dark brown to black. Conidiophores were simple, straight or bent, with plain walls. Conidia were brown, obpyriform to ellipsoid (average 22 to 39 × 8 to 15 μm; n = 50), with both transversal and longitudinal septa, often observed in branched chains with more than 5 conidia. Growth occurred at 37°C. The identification of Alternaria alternata (Fr.:Fr.) Keissler was confirmed by the amplification and subsequent sequencing with the primers NL1 and NL4 of the region D1/D2 in the 5′ end of the 28S rRNA gene of the isolate IVIA DAA-4 (GenBank Accession No. JX987100). A BLAST search showed 100% identity with A. alternata strain DAOM 216376 (JN938894). Selected healthy ‘Medjool’ dates were surface disinfected by dipping them for 2 min in a 0.5% sodium hypochlorite solution and thoroughly rinsed with fresh water. To fulfill Koch's postulates, 20 μl of a spore suspension at 1 × 105 spores per ml prepared from 7-day-old colonies grown on PDA were placed in fresh skin wounds made in disinfected fruit using a sterile stainless steel rod with a probe tip 1 mm wide and 2 mm in length (one wound per fruit; three humid chambers with nine fruits each). Wounded but not inoculated fruit were used as controls (one humid chamber with nine fruit). While disease symptoms were observed on all fruit inoculated with A. alternata (average black spots of 3, 6, and 12 mm after 4, 7, and 10 days of incubation at 20°C), no decay was observed on any of the control fruit. Reisolation of the fungus was performed from 10 infected dates and it was positive in all cases. A. alternata has been reported to cause date palm fruit disease in Israel (1) and Egypt (2), whereas Alternaria spp. have been cited in California (3) and Iran (4). To our knowledge, this is the first report of A. alternata causing date palm fruit rot in Spain. References: (1) R. Barkai-Golan et al. Hassadeh 69:1446, 1989. (2) H. M. El-Deeb et al. Acta Hort. 736:421, 2007. (3) H. S. Fawcett and L. J. Klotz. University of California Bulletin 522, 1932. (4) F. Karampourland and H. Pejman. Acta Hort. 736:431, 2007.

APA, Harvard, Vancouver, ISO, and other styles

3

AMER, WAFAA M., and OSAMA A. MOMTAZ. "Historic background of Egyptian cotton (2600 BC–AD 1910)." Archives of Natural History 26, no. 2 (June 1999): 211–22. http://dx.doi.org/10.3366/anh.1999.26.2.211.

Full text

Abstract:

The cotton plant was recorded from Egypt in the Dynastic period as early as 2500 BC. Cotton seeds were recovered from Nubia (Egypt) in 1964. Many writers and relief sculptures as well as hieroglyphic symbols confirm cotton cultivation during this period. Cotton cultivation dominated in the Ptolemaic and Roman period (305 BC-AD 395). There were two cotton species (Gossypium arboreum L. and Gossypium herbaceum L.) grown in Egypt during the Islamic period (AD 1477-AD 1711). Later Ashmouni cotton was derived from Sea Island cotton (G. barbadense L. var. maritima Watt); Jumel's cotton (G. brasiliense Macf.) and other Egyptian stocks (possibly G. arboreum and/or G. herbaceum var. africanum (Watt) Hutchinson & Ghose). Ashmouni cotton was the main ancestor of Egyptian cultivare after 1887.

APA, Harvard, Vancouver, ISO, and other styles

4

Abd-Elsalam, Kamel A., Moawad R. Omar, and Aly A. Aly. "First Report ofRhizoctonia solaniAG-7 on Cotton in Egypt." Journal of Phytopathology 158, no. 4 (April 2010): 307–9. http://dx.doi.org/10.1111/j.1439-0434.2009.01611.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Mazen, M. B., I. A. El-Kady, and Sabah M. Saber. "Survey of the mycoflora and mycotoxins of cotton seeds and cotton seed products in Egypt." Mycopathologia 110, no. 3 (June 1990): 133–38. http://dx.doi.org/10.1007/bf00437536.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Sawan, Zakaria M., Louis I. Hanna, and Willis L. McCuistion. "Interval of days required for determining efficient relations between climatic factors and cotton flower and boll production." Canadian Journal of Plant Science 82, no. 3 (July 1, 2002): 499–506. http://dx.doi.org/10.4141/p01-013.

Full text

Abstract:

The cotton plant (Gossypium spp.) is sensitive to numerous environmental factors. This study was aimed at predicting effects of climatic factors grouped into convenient intervals (in days) on cotton flower and boll production compared with daily observations. Two uniformity field trials using the cotton (G. barbadense L.) cv. Giza 75 were conducted in 1992 and 1993 at the Agricultural Research Center, Giza, Egypt. Randomly chosen plants were used to record daily numbers of flowers and bolls during the reproductive stage (60 days). During this period, daily air temperature, temperature magnitude, evaporation, surface soil temperature, sunshine duration, humidity, and wind speed were recorded. Data, grouped into intervals of 2, 3, 4, 5, 6, and 10 d, were correlated with cotton production variables using regression analysis. Evaporation was found to be the most important climatic variable affecting flower and boll production, followed by humidity and sunshine duration. The least important variables were surface soil temperature at 0600 and minimum air temperature. The 5-d interval was found to provide the best correlation with yield parameters. Applying appropriate cultural practices that minimize the deleterious effects of evaporation and humidity could lead to an important improvement in cotton yield in Egypt. Key words: Cotton, flower production, boll production, boll retention

APA, Harvard, Vancouver, ISO, and other styles

7

Baohong, Zhang, and Zhou Yun. "Effects of NaCI Stress on Cotton Tissue Culture and Plant Regeneration." Pakistan Journal of Biological Sciences 2, no. 4 (September 15, 1999): 1085–87. http://dx.doi.org/10.3923/pjbs.1999.1085.1087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Altman, David W., Robert D. Stipanovic, Donna M. Mitten, and Peter Heinstein. "Interaction of cotton tissue culture cells andVerticillium dahliae." In Vitro Cellular & Developmental Biology 21, no. 12 (December 1985): 659–64. http://dx.doi.org/10.1007/bf02620919.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Makhlouf, Azza, D. Asse, E. Hafez, and M. Seehy. "Molecular and Serological Studies for Detection and Identification of Cotton Leaf Curl Virus in Cotton Plant (G. barbadense L.) in Egypt." British Microbiology Research Journal 6, no. 3 (January 10, 2015): 1–9. http://dx.doi.org/10.9734/bmrj/2015/18939.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Sawan, Z. M., and R. A. Sakr. "Response of Egyptian cotton (Gossypium barbadense) yield to 1,1-dimethyl piperidinium chloride (Pix)." Journal of Agricultural Science 114, no. 3 (June 1990): 335–38. http://dx.doi.org/10.1017/s0021859600072725.

Full text

Abstract:

SUMMARYTwo field experiments were conducted in Egypt in 1985 and 1986 to examine the responses of yield and its components and fibre quality in the Egyptian cotton cultivar Giza 75 to the spray application of 0, 10, 20, 40, 60, 80, and 100 mg of 1,1-dimethyl piperidinium chloride (Pix)/litre at 90 days or at 90 and 110 days after sowing. Number of opened bolls/plant, boll weight, seed and lint index, seed cotton yield/plant, seed cotton and lint yield/ha and yield earliness increased, but lint percentage decreased after Pix application. The number of opened bolls/plant increased after one application, but there was no effect from a further application. There were no effects of concentration or number of applications of Pix on any fibre property.

APA, Harvard, Vancouver, ISO, and other styles

11

George, F., D. Kerschen, A. Van Nuffel, J. F. Rees, and I. Donnay. "Plant protein hydrolysates (plant peptones) as substitutes for animal proteins in embryo culture medium." Reproduction, Fertility and Development 21, no. 4 (2009): 587. http://dx.doi.org/10.1071/rd08147.

Full text

Abstract:

The aim of the present study was to improve the sanitary quality of in vitro-produced bovine embryos by using plant protein hydrolysates (plant peptones) as substitutes for animal proteins. Peptones were compared with bovine serum albumin (BSA) as the protein source in synthetic oviduct fluid medium and the quality of the resulting embryos was determined. Two batches of peptones (wheat and cotton) were selected on the basis of their anti-oxidant properties. When added to the culture medium, both peptones (at 0.56 mg mL–1 for cotton peptone and at 0.18 mg mL–1 for wheat peptone) led to similar developmental and hatching rates compared with 4 mg mL–1 BSA and embryos were equally resistant to freezing and able to elongate after transfer. Surprisingly, a significant decrease in reduced glutathione (GSH) content was observed when embryos were produced with plant peptone instead of BSA. Supplementation of the culture medium with precursors of GSH (cysteine and β-mercaptoethanol) significantly increased the GSH content. A shift of the sex ratio towards male embryos was seen for Day 8 embryos cultured with wheat peptone, whereas no shift was observed for embryos cultured in the presence of BSA or polyvinylpyrrolidone. In conclusion, culture with plant peptones enables embryos to be obtained at a similar rate and of similar quality to that seen following the use of BSA. The use of the plant peptones increased the sanitary quality of the embryos and decreased the cost of embryo production.

APA, Harvard, Vancouver, ISO, and other styles

12

Ibrahim, Mazen. "Effect of Arbuscular Mycorrhizal Fungi on Chemical Constituents in Cotton/Alfalfa Mixed Culture." Agriculture (Pol'nohospodárstvo) 63, no. 2 (August 1, 2017): 67–73. http://dx.doi.org/10.1515/agri-2017-0006.

Full text

Abstract:

Abstract A pot experiment was conducted to study the extent of changes occurring in the nutrients, chlorophyll and protein of plants grown in cotton/alfalfa mixed culture as affected by inoculation with indigenous arbuscular mycorrhizal fungi (AMF). The experiment consisted of mycorrhizal treatments (with and without AMF inoculation) and three planting patterns (cotton monoculture, alfalfa monoculture, cotton/alfalfa mixed culture). Arbuscular mycorrhizal (AM) inoculum previously isolated from a rhizospheric soil of cotton, was a mixture of Glomus intraradices, G. viscosum, and G. mosseae. Results showed that total chlorophyll and protein concentrations, and nutrients content were higher in AM cotton plants compared with the non-AM control. Mixed culture had a positive effect on all the above parameters in cotton shoot. The highest values were noted in AM plants in the mixed culture. Improved chemicals and biochemical constituents in cotton led to an increase in dry matter production. The highest dry matter was observed in the AM mixed culture, and was significantly higher by 1.4 times than that of non-AM monoculture.

APA, Harvard, Vancouver, ISO, and other styles

13

Sabagh, Ayman El, Abdelhamid M. Omar, Mohamed El Menshawi, and Samir El Okkiah. "Foliar Application of Organic Compounds Stimulate Cotton (Gossypium barbadense L.) to Survive Late Sown Condition." Open Agriculture 3, no. 1 (December 1, 2018): 684–97. http://dx.doi.org/10.1515/opag-2018-0072.

Full text

Abstract:

Abstract Application of organic compounds in cotton balances its vegetative and reproductive growth, as well as to improve the seed cotton yield and lint quality properties. Field experiments were conducted with some organic compounds to determine their effects on cotton yield and quality properties of cotton under two sowing times.The experiment was conducted at Sakha Agricultural Research Station, Cotton Research Institute, Egypt in 2015 and 2016. In these studies, two sowing times viz. optimum and delay sowing and two levels (200 and 400 ppm) of organic compounds viz. ascorbic, ascobine and salicylic acids were used. The results indicated that the optimum sowing date gave the largest area of single leaf at 90 and 120 DAS, as well as it induced an increase in dry weight (g) of plant organs at 120 DAS, while, the late sowing significantly reduced the leaves dry weight both at 90 and 120 DAS. Both seed cotton yield and lint cotton yield (kentar feddan-1) were significantly increased in optimum sowing condition and sharply declined as delayed sowing date. The number of opened bolls plant-1 were also significantly reduced in late sowing. Lint percentage, seed index and seed cotton weight boll-1 were also significantly affected by sowing dates. Leaf pigment (total chlorophyll) was significantly affected by sowing date recorded at 90 and 120 DAS, while lower values of total chlorophyll was recorded in late sown plants. Also, sowing dates had no significant effect on both oil and protein seed content. This study has shown that timely sowing of cotton seed and foliar application of ascorbic acid, ascobine or salicylic acid with concentration of 200 or 400 ppm at flower initiation stage and peak of flowering stage had significant positive effects on seed cotton yield and lint quality properties. According to these results it can be suggested that usage of organic compounds to improve the yield and quality properties, especially in late sowing for ‘Giza 94' cotton cultivar at Kafr- Elsheikh district, Egypt.

APA, Harvard, Vancouver, ISO, and other styles

14

Mehta, Y. R., and R. L. Brogin. "Phytotoxicity of a Culture Filtrate Produced by Stemphylium solani of Cotton." Plant Disease 84, no. 8 (August 2000): 838–42. http://dx.doi.org/10.1094/pdis.2000.84.8.838.

Full text

Abstract:

Stemphylium solani, which causes a new leaf blight of cotton, was suspected of producing a phytotoxin. Studies were conducted to examine the relationship between the reaction of different cotton cultivars and of some unrelated host species to the pathogen and its toxin-containing culture filtrates. Seven single spore isolates of S. solani from cotton and their toxin-containing culture filtrates were used for leaf and root bioassays. An isolate of S. solani from tomato was also used for comparison. The phytotoxic effect was isolate dependent. Culture filtrates of five isolates killed 40 to 60% of the cotton seedlings when incubated for 4 days at 10-1 dilution. At 10-2 dilution, the culture filtrates of most of the isolates affected the development of the root system but failed to kill any seedling. The phytotoxic effect of the culture filtrate was not degraded by autoclaving. A high correlation coefficient between the percentage of the leaf area infected (LAI) by S. solani and the percentage of the necrotic leaf area (LAN) by the culture filtrate was observed when one of the aggressive isolates and its culture filtrate were tested against adult plants of 38 cotton cultivars (r = 0.86). Cultivars CNPA T-1180-23, CNPA-PRECOCE 2, PR 94-215, and PR 94-82 demonstrated resistance to the pathogen as well as insensitivity or moderate sensitivity to its toxin. Cultivars showing intermediate reaction to the pathogen also showed intermediate reaction to its culture filtrate. Similarly, the highly susceptible cultivars Paraná 3, PR 93-129, and PR 94-216 also were highly sensitive to the culture filtrate. Of the 18 plant species belonging to 18 genera, eight were susceptible to the pathogen. With two exceptions, susceptible hosts were also sensitive to the culture filtrate, whereas nonsusceptible hosts were insensitive. A component of the culture filtrate was regarded as a pathogenicity factor.

APA, Harvard, Vancouver, ISO, and other styles

15

Fuller, Rodney J., Vincent M. Liddiard, J. Richard Hess, and John G. Carman. "Improving cotton embryo culture by simulating in ovulo nutrient and hormone levels." In Vitro Cellular & Developmental Biology - Plant 47, no. 3 (February 27, 2011): 410–19. http://dx.doi.org/10.1007/s11627-011-9350-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Jian-Ying, Yu Cai, Jin-Ying Gou, Ying-Bo Mao, Yan-Hua Xu, Wei-Hong Jiang, and Xiao-Ya Chen. "VdNEP, an Elicitor from Verticillium dahliae, Induces Cotton Plant Wilting." Applied and Environmental Microbiology 70, no. 8 (August 2004): 4989–95. http://dx.doi.org/10.1128/aem.70.8.4989-4995.2004.

Full text

Abstract:

ABSTRACT Verticillium wilt is a vascular disease of cotton. The causal fungus, Verticillium dahliae, secretes elicitors in culture. We have generated ∼1,000 5′-terminal expressed sequence tags (ESTs) from a cultured mycelium of V. dahliae. A number of ESTs were found to encode proteins harboring putative signal peptides for secretion, and their cDNAs were isolated. Heterologous expression led to the identification of a protein with elicitor activities. This protein, named V. dahliae necrosis- and ethylene-inducing protein (VdNEP), is composed of 233 amino acids and has high sequence identities with fungal necrosis- and ethylene-inducing proteins. Infiltration of the bacterially expressed His-VdNEP into Nicotiana benthamiana leaves resulted in necrotic lesion formation. In Arabidopsis thaliana, the fusion protein also triggered production of reactive oxygen species and induced the expression of PR genes. When added into suspension cultured cells of cotton (Gossypium arboreum), the fusion protein elicited the biosynthesis of gossypol and related sesquiterpene phytoalexins at low concentrations, and it induced cell death at higher concentrations. On cotton cotyledons and leaves, His-VdNEP induced dehydration and wilting, similar to symptoms caused by a crude preparation of V. dahliae elicitors. Northern blotting showed a low level of VdNEP expression in the mycelium during culture. These data suggest that VdNEP is a wilt-inducing factor and that it participates in cotton-V. dahliae interactions.

APA, Harvard, Vancouver, ISO, and other styles

17

Mellon, Jay E., and Barbara A. Triplett. "De novo synthesis of peroxidase in cotton ovule culture medium." Physiologia Plantarum 77, no. 3 (November 1989): 302–7. http://dx.doi.org/10.1111/j.1399-3054.1989.tb05645.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Triplett, Barbara A., William H. Busch, and Wilton R. Goynes. "Ovule and suspension culture of a cotton fiber development mutant." In Vitro Cellular & Developmental Biology 25, no. 2 (February 1989): 197–200. http://dx.doi.org/10.1007/bf02626178.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Trolinder, Norma L., Jerry D. Berlin, and Joe R. Goodin. "Differentiation of cotton fibers from single cells in suspension culture." In Vitro Cellular & Developmental Biology 23, no. 11 (November 1987): 789–94. http://dx.doi.org/10.1007/bf02623681.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Saeed, Muhammad, Song Xianliang, Sun Xuezhen, and Muhammad Riaz. "Leaf cuticular wax content is involved in cotton leaf curl virus disease resistance in cotton (Gossypium hirsutum L.)." Spanish Journal of Agricultural Research 16, no. 4 (January 8, 2019): e0705. http://dx.doi.org/10.5424/sjar/2018164-13085.

Full text

Abstract:

Cotton leaf curl virus disease (CLCuVD) limits cotton production in many cotton growing countries of the world, including Pakistan. In the past, efforts were made to combat this disease by different approaches. Cuticular wax is reported to confer resistance to plants against various biotic and abiotic stresses. Present study was designed to assess the role of cuticular wax content (WC) to resist CLCuVD infestation. The WC of 42 cotton genotypes, originating from various countries (Pakistan, USA, China, etc.), was quantified during two culture periods (2015 & 2016). Cotton germplasm was also scored for % disease index (%DI), seed cotton yield (SCY), number of bolls/plant (NB), and plant height (PHt) for the same culture periods. Significant negative correlation between WC and %DI was found during the two years of experimentation. WC was found positively correlated with SCY and NB. Six cotton genotypes (A-7233, B-557, A-162, BLANCO-3363, CIM-473, and SLH-2010-11) did not show any signs of CLCuVD infestation during both 2015 and 2016. These cotton genotypes contained relatively higher WC. The results from analysis of variance (ANOVA) demonstrated that there were significant differences among genotypes for %DI, WC, SCY, NB, and PHt. These results indicated that WC was involved in resisting CLCuVD and it also had positive effect on plant growth and yield potential. On the basis of these findings, it was concluded that cuticular wax could be used as an indirect criterion for distinguishing and selecting resistant/susceptible cotton genotypes.

APA, Harvard, Vancouver, ISO, and other styles

21

Wilhelm, Stephen. "Phenotype Modification in Cotton for Control of Verticillium Wilt Through Dense Plant Population Culture." Plant Disease 69, no. 4 (1985): 283. http://dx.doi.org/10.1094/pd-69-283.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Stelly, David M., D. W. Altman, R. J. Kohel, T. S. Rangan, and E. Commiskey. "Cytogenetic abnormalities of cotton somaclones from callus cultures." Genome 32, no. 5 (October 1, 1989): 762–70. http://dx.doi.org/10.1139/g89-509.

Full text

Abstract:

Somaclonal variation occurs among regenerants from tissue culture of many plant species. Our objective was to determine whether cytogenetic variation contributes to somaclonal variation in cotton (Gossyptum hirsutum L.,2n = 4x = 52). Of 117 somaclones of cotton regenerated from 18-month-old callus cultures of 'SJ-2' and 'SJ-5' cultivars, 35 were analyzed for meiotic abnormalities. The population of somaclones was extremely varied in phenotype, most plants being strikingly aberrant in phenotype. Fertility was generally poor: 84% failed to set bolls and only 5% set 10 or more bolls in a field environment. Only one of the somaclones (3%) formed 26 bivalents at metaphase I. Fourteen were nonsynaptic to partially synaptic at metaphase I. Synaptic abnormalities impaired fertility and precluded thorough metaphase analysis. Chromosome numbers obtained for 32 plants ranged from 49 to 53, and only 1 plant was hyperaneuploid. No plant was polyploid. Chromosomal abnormalities in plants with normal metaphase pairing included univalents, unequal bivalents, rod bivalents, trivalents, open quadrivalents, and centric fragments. Seventeen hypoaneuploid plants formed a V-shaped trivalent at metaphase I, constituting a high frequency of tertiary monosomy. The high frequencies of aneuploidy and tertiary monosomy indicate that cytogenetic anomalies are a major source of somaclonal variation in cotton. It is hypothesized that (i) primary cytogenetic events during cotton cell culture give rise to breakage – fusion – bridge (BFB) cycles, (ii) BFB cycles accrue during culture, (iii) BFB cycles cause loss of chromatin, and (iv) BFB cycles are resolved by the formation of stable tertiary chromosomes with mono-centric activity. The hypothesis accounts mechanistically for the coincidence of chromatin deficiencies and chromatin exchange involved implicitly in tertiary monosomy, as well as for the relatively high frequency of tertiary monosomy among somaclones.Key words: aneuploid, monosomic, synaptic, sterility, Gossypium.

APA, Harvard, Vancouver, ISO, and other styles

23

Suvo, TP, MT Ahamed, MR Haque, M. Chakrobarti, and H. Biswas. "Identification of suitable media based on hydroponic culture for production Zucchini squash." International Journal of Agricultural Research, Innovation and Technology 6, no. 2 (February 27, 2017): 1–4. http://dx.doi.org/10.3329/ijarit.v6i2.31695.

Full text

Abstract:

An experiment was conducted to identify the hydroponic culture based suitable media for the production of Zucchini Squash in the Biochemistry Laboratory, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh during 2014. Zucchini plant (Cucurbita pepo L.) were grown in closed soilless systems to determine the effect of four different hydroponics media on plant growth, yield and nutrient contents (fruit moisture content, ascorbic acid content on fruit, fruit protein content, protein content in leaves). Three types of substrates (coconut husk, jute, cotton) along with Hoagland solution were used in this experiment. Result revealed that media using Jute fiber showed significant effect on plant growth and nutritional values than the other media (media of cotton with Hoagland solution, coconut husk with Hoagland solution and only Hoagland solution). The plant grown using jute media showed the highest plant height (60.33 cm), number of leaves (17.33), yield (1.5 kg plant-1), fruit moisture content (97.33%), Ascorbic acid content in fruit (28.73 mg 100g-1), protein percentage in fruit (1.406%) and percentage (1.326%) in leaves than the other media. Therefore, with the controlled nutrient supply, less expense, less labor, no use of pesticides or fertilizer with controlled environment the use of jute fiber as a substrate with Hoagland solution can be an effective one.Int. J. Agril. Res. Innov. & Tech. 6 (2): 1-4, December, 2016

APA, Harvard, Vancouver, ISO, and other styles

24

Hussain, M. Mahmood, Ulrich Melcher, Tina Whittle, Ann Williams, Carol M. Brannan, and Earl D. Mitchell. "Replication of Cauliflower Mosaic Virus DNA in Leaves and Suspension Culture Protoplasts of Cotton." Plant Physiology 83, no. 3 (March 1, 1987): 633–39. http://dx.doi.org/10.1104/pp.83.3.633.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Palmer, Clovis S., Jennifer A. Saleeba, and Bruce R. Lyon. "Phytotoxicity on cotton ex-plants of an 18.5kDa protein from culture filtrates of Verticillium dahliae." Physiological and Molecular Plant Pathology 67, no. 6 (December 2005): 308–18. http://dx.doi.org/10.1016/j.pmpp.2006.05.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Triplett, Barbara A., and Damicca S. Johnson. "Adding gelling agents to cotton ovule culture media leads to subtle changes in fiber development." In Vitro Cellular & Developmental Biology - Plant 35, no. 3 (May 1999): 265–70. http://dx.doi.org/10.1007/s11627-999-0090-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Jin, S., X. Zhang, Y. Nie, X. Guo, S. Liang, and H. Zhu. "Identification of a novel elite genotype for in vitro culture and genetic transformation of cotton." Biologia plantarum 50, no. 4 (December 1, 2006): 519–24. http://dx.doi.org/10.1007/s10535-006-0082-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Sawan, Zakaria M. "Mineral Fertilizers and Plant Growth Retardants: Its Effects on Cottonseed Yield, Quality and Contents." Transactions on Machine Learning and Artificial Intelligence 9, no. 1 (February 28, 2021): 19–41. http://dx.doi.org/10.14738/tmlai.91.9860.

Full text

Abstract:

Cotton is the principal crop of Egyptian agriculture, it is grown mainly for its fiber, but cottonseed products are also of economic importance. Cottonseed is presently the main source of edible oil and meal for livestock in Egypt. Economic conditions in modern agriculture demand high crop yields in order to be profitable and consequently meet the high demand for food that comes with population growth. Oil crop production can be improved by development of new high yielding varieties, and the application of appropriate agronomic practices. There is limited information about the most suitable management practice for application of N, P, K, Zn, Ca and PGRs in order to optimize the quantity and quality of oil and protein of cottonseed. In maximizing the quantity and quality of a crop's nutritional value in terms of fatty acids and protein, field experiments were conducted to investigate the effect of nitrogen, phosphorus, potassium, foliar application of zinc and calcium, the use of a plant growth retardant (Pix), on cottonseed, protein, oil yields, and oil properties of Egyptian cotton. From the findings of this study, it seems rational to recommended applied of N, P, K, foliar application of Zn and Ca, the use of PGR Pix, could bring about better impact on cottonseed yield, seed protein content, oil and protein yields, oil refractive index, unsaponifiable matter, and unsaturated fatty acids in comparison with the ordinary cultural practices adopted by Egyptian cotton producers.

APA, Harvard, Vancouver, ISO, and other styles

29

Nadio, NA, EM Bokobana, KP Akantetou, P. Tozoou, W. Poutouli, K. Koba, K. Sanda, and C. Raynaud. "Efficacite des bioinsecticides a base de l’huile essentielle de Cymbopogon schoenanthus (L.) spreng contre les punaises rouges (Dysdercus voelkeri, schmidt) en culture cotonniere au Togo." African Journal of Food, Agriculture, Nutrition and Development 21, no. 03 (May 5, 2021): 17727–40. http://dx.doi.org/10.18697/ajfand.98.20095.

Full text

Abstract:

Currently, the fight against red bugs, a pest of the cotton plant, is limited to the use of synthetic chemical insecticides. Many of the products used are persistent and their high toxicity to human health and the environment is of concern. In the search for alternatives to synthetic chemical insecticides, the aim of this research work was to evaluate the insecticidal potential of aqueous emulsions based on the essential oil of Cymbopogon schoenanthus(L.) against Dysdercus voelkeri, one of the redoubtable pests of cotton plant in Togo. Aqueous emulsions at different concentrations were used in phytosanitary treatments on cotton crop compared to vulgarized binary insecticides (lambdacyhalothrin/profenofos 15/300 gha-1and cypermethrin/acetamiprid 36/8 gha-1). D. voelkeri counts on target plants of each elementary plot revealed that the highest dose of the emulsion (6%) of C. schoenanthus essential oil and the control (vulgarized insecticide)were more effective with low bug population densities of 7.14± 1.46 and 4.86± 1.84 bugs/plant,respectively. On the contrary,the other doses (4 and 2%) of emulsions based on C. schoenanthus essential oil had in their plots respectively 39.57 ± 5.81 and 45.28 ± 3.92 bugs/plant and the control (55.71± 5.23 bugs/plant). Health analysis of the young cotton bolls that fell under the cotton plants revealed that the highest dose of the emulsion (6%) and the control reduced stings by 71.40 and 72.33 % respectively, compared to the control. Stings reduction rates in plots with treatments of 4 and 2% of the emulsion were low with rates of 55.32and22.83%,respectively. These results clearly show that the aqueous emulsion formulated and tested in the study can significantly reduce attacks of these pests. This study shows the possibility of using the essential oil of C. schoenanthus as a raw material in the formulation of biopesticide as an alternative to synthetic chemical insecticides in the control of cotton plant red bugs in Togo.

APA, Harvard, Vancouver, ISO, and other styles

30

Leonteva, I. "Survey of Cotton-plant Agrocenosis Insects in the Eastern Part of the Republic of Turkmenistan." Bulletin of Science and Practice 6, no. 1 (January 15, 2020): 21–27. http://dx.doi.org/10.33619/2414-2948/50/03.

Full text

Abstract:

To date, the high importance of cultivation industrial crops is universally recognized. One of these crops — cotton–plant (Gossypium hirsutum) — is the most important crop grown in Central Asia. The study of the species diversity of insects in crops of agricultural plants, including cotton–plant, is of great practical and theoretical interest, which allows us to assess the phytosanitary condition of crops and to develop a set of measures to improve them. The greatest economic damage to cotton–plant crops is caused by insects, among which are multivivorous (turnip moth, cotton bollworm, aphid, etc.) and specialized (more than 20 species). They damage almost all the organs of a given plant: roots, stems, leaves, generative organs (flowers and fruits) during their formation and maturation. In order to study the species diversity of insects in the cotton–plant agrocenosis under the conditions of the Lebap velayat of the Republic of Turkmenistan in 2019, more than 1000 insect specimens were collected. 12 species belonging to 7 orders and 10 families were identified. In the process of scientific research, predominantly polyphagous pests were recorded, which include two species of grasshoppers, two species of owlet moths, aphids, etc. In addition to pests of this culture, two species of predatory insects were found (European mantis and Bronze Carabid).

APA, Harvard, Vancouver, ISO, and other styles

31

Bashan, Yoav. "Symptom expression and ethylene production in leaf blight of cotton caused by Alternaria macrospora and Alternaria alternata alone and in combination." Canadian Journal of Botany 72, no. 11 (November 1, 1994): 1574–79. http://dx.doi.org/10.1139/b94-194.

Full text

Abstract:

The interaction between the cotton leaf pathogens Alternaria macrospora and Alternaria alternata was studied using dual inoculation at dosages (≈ 103 spores/(mL ∙ pathogen)) that did not produce symptoms with either pathogen alone. This dual inoculation produced the typical disease symptoms (spots and shedding) and disease severity similar to inoculation with 104 spores/mL of A. macrospora alone. Neither pathogen produced ethylene in culture; however, they induced production of ethylene concentrations by diseased tissue that were correlated to both disease severity and leaf shedding. Plants infected by both pathogens produced the highest concentration of ethylene. Leaf discs either from leaves exhibiting symptoms or from symptomless infected leaves produced similarly high concentrations of ethylene. Inoculation of any site of the leaf with A. macrospora alone or with both pathogens resulted in shedding of the leaf. Pretreating inoculated plants with several ethylene inhibitors or an auxin decreased ethylene production, disease severity, and leaf shedding. Alternaria alternata apparently triggers symptom expression by A. macrospora in leaf blight disease of Pima cotton, and disease is manifested by the production of ethylene that leads to the typical leaf shedding symptom. Key words: Alternaria macrospora, Alternaria alternata, cotton leaf blight, defoliation, ethylene, fungus – fungus interaction, leaf spot of cotton, symptomless infections, virulence.

APA, Harvard, Vancouver, ISO, and other styles

32

Feng, Rong, and R. Malcolm Brown. "A novel cottong ovule culture: Induction, growth, and characterization of submerged cotton fibers (Gossypium hirsutum L.)." In Vitro Cellular & Developmental Biology - Plant 36, no. 4 (July 2000): 293–99. http://dx.doi.org/10.1007/s11627-000-0053-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

ZHANG, BAO-HONG, FANG LIU, WEN-SHENG ZHANG, and QING-LIAN WANG. "Selection for salt tolerance in cotton tissue culture and plant regeneration from NaCl-tolerant embryogenic callus." Israel Journal of Plant Sciences 49, no. 3 (January 1, 2001): 187–92. http://dx.doi.org/10.1560/13ve-rbh7-6p1r-lkqh.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Kalbande, Bipinchandra B., and Anita S. Patil. "Plant tissue culture independent Agrobacterium tumefaciens mediated In-planta transformation strategy for upland cotton (Gossypium hirsutum)." Journal of Genetic Engineering and Biotechnology 14, no. 1 (June 2016): 9–18. http://dx.doi.org/10.1016/j.jgeb.2016.05.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Vijayasamundeeswari, Ayyathurai, Duraisamy Ladhalakshmi, Ambalavanan Sankaralingam, and Ramasamy Samiyappan. "Plant Growth Promoting Rhizobacteria of Cotton Affecting the Developmental Stages of Helicoverpa Armigera." Journal of Plant Protection Research 49, no. 3 (September 1, 2009): 239–43. http://dx.doi.org/10.2478/v10045-009-0036-y.

Full text

Abstract:

Plant Growth Promoting Rhizobacteria of Cotton Affecting the Developmental Stages ofHelicoverpa ArmigeraRhizobacteria isolated from cotton roots exhibiting antagonism towards seedling blight and leaf blight of cotton were tested for their efficiency against the insect pest American bollworm (Helicoverpa armigera). The bioformulation developed usingBacillus subtilis(isolate DGL9) + chitin was found to be detrimental to the developmental stages ofH. armigera(larva, pupa and adult) by causing larval mortality, pupal and adult malformation with reduced adult emergence. Generally, the larvae exhibited antifeeding behaviour when fed on bolls collected from rhizobacterial treatments. Hence, the developmental stages were altered leading to early pupation. Further, the efficacy of the isolate DGL9 was confirmed by culturing the bacteria in a suitable medium and incorporating the cell suspension and supernatant obtained form the broth culture in larval diet. The larvae fed to the diet exhibited defective developmental stages which was more significant in case of diet incorporated with supernatant. The percentage of pupal malformation, adult emergence and adult malformation was high at 96 h of incubation with the supernatant.

APA, Harvard, Vancouver, ISO, and other styles

36

Gill, Manjeet S., and Y. P. S. Bajaj. "Hybridization between diploid (Gossypium arboreum) and tetraploid (Gossypium hirsutum) cotton through ovule culture." Euphytica 36, no. 2 (1987): 625–30. http://dx.doi.org/10.1007/bf00041512.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Blair, L. Curt, Chris J. Chastain, and Jack M. Widholm. "Initiation and characterization of a cotton (Gossypium hirsutum L.) photoautotrophic cell suspension culture." Plant Cell Reports 7, no. 4 (June 1988): 266–69. http://dx.doi.org/10.1007/bf00272539.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Célini, Léonide, and Jean Vaillant. "RÉPARTITION SPATIO-TEMPORELLE DES PRÉSENCES D’AILÉS D’APHIS GOSSYPII (HEMIPTERA: APHIDIDAE) EN CULTURE COTONNIÈRE (MALVACEAE)." Canadian Entomologist 131, no. 6 (December 1999): 813–24. http://dx.doi.org/10.4039/ent131813-6.

Full text

Abstract:

AbstractThe spatio-temporal distribution of cotton plants, Gossypium hirsutum L., infested with Aphis gossypii (Glover) winged adults, is described in a plot located in Bangui, Central African Republic. Each cotton plant growing in the plot was examined visually for a short period of time to ascertain the presence or absence of A. gossypii and to construct weekly infestation maps. Tests of autocorrelation and dispersion were carried out at different spatial scales by means of Monte Carlo procedures on embedded counting grids. Edge effect tests were also carried out. The statistical analyses show significant overdispersion of the infested plants and positive spatial autocorrelation. Positive temporal autocorrelation and significant edge effect are detected intermittently throughout the season.

APA, Harvard, Vancouver, ISO, and other styles

39

Dor and Degani. "Uncovering the Host Range for Maize Pathogen Magnaporthiopsis maydis." Plants 8, no. 8 (July 30, 2019): 259. http://dx.doi.org/10.3390/plants8080259.

Full text

Abstract:

The fungus Magnaporthiopsis maydis is a soil-borne, seed-borne vascular wilt pathogen that causes severe damage to sensitive Zea mays L. (maize) hybrids throughout Egypt, Israel, India, Spain, and other countries. It can undergo virulence variations and survive as spores, sclerotia, or mycelia on plant residues. Maize, Lupinus termis L. (lupine) and Gossypium hirsutum L. (cotton) are the only known hosts of M. maydis. Identification of new plant hosts that can assist in the survival of the pathogen is an essential step in restricting disease outbreak and spread. Here, by field survey and growth chamber pathogenicity test, accompanied by real-time PCR analysis, the presence of the fungal DNA inside the roots of cotton (Pima cv.) plants was confirmed in infested soil. Moreover, we identified M. maydis in Setaria viridis (green foxtail) and Citrullus lanatus (watermelon, Malali cv.). Infected watermelon sprouts had delayed emergence and development, were shorter, and had reduced root and shoot biomass. M. maydis infection also affected root biomass and phenological development of cotton plants but caused only mild symptoms in green foxtail. No M. maydis DNA was detected in Hordeum vulgare (barley, Noga cv.) and the plants showed no disease symptoms except for reduced shoot weight. These findings are an important step towards uncovering the host range and endophytic behavior of M. maydis, encouraging expanding this evaluation to other plant species.

APA, Harvard, Vancouver, ISO, and other styles

40

Papafotiou, Maria, Barbara Avajianneli, Costas Michos, and Iordanis Chatzipavlidis. "Coloration, Anthocyanin Concentration, and Growth of Croton (Codiaeum variegatum L.) as Affected by Cotton Gin Trash Compost Use in the Potting Medium." HortScience 42, no. 1 (February 2007): 83–87. http://dx.doi.org/10.21273/hortsci.42.1.83.

Full text

Abstract:

Compost from cotton gin trash was evaluated as a peat substitute in Codiaeum variegatum L. production. Rooted cuttings were grown for 8 months in media containing cotton gin trash compost, sphagnum peatmoss, and perlite in 1:3:4, 1:1:2, and 3:1:4 ratios respectively, and their growth was compared with a control medium of 1 peat : 1 perlite (by volume). Even when 75% of peat in the control medium was replaced by cotton gin trash compost, plant height, leaf number, and leaf size were unaffected, whereas root dry weight was increased in the medium with 25% peat replacement. Although replacement of peat by cotton gin trash compost did not affect quantitative characteristics of croton foliage growth, it affected the foliage color, as plants in media with cotton gin trash compost had more areas colored red in their leaves. The increase of red coloration was proportional to the increase of cotton gin trash compost in the medium. The phenomenon was more intense in the lower leaves than the apical ones. Anthocyanin concentration measurements showed that the gradual increase of cotton gin trash compost level in the growth medium caused a gradual increase of the anthocyanin concentration in the leaves. This effect is discussed in relation to chemical properties of the media, as electrical conductivity, pH, and nutrient concentrations. The gradual increase of cotton gin trash compost level caused an analogous increase of N, P, and K concentrations in the medium. Also, media with cotton gin trash compost had high electrical conductivity at the beginning of the culture period, related to the cotton gin trash compost level, which was reduced to values similar to that in the control medium after 50 days of culture. Na concentration in the media ranged similarly to electrical conductivity. The pH was positively related to cotton gin trash compost level, and media with a high cotton gin trash compost level had increased pH during the culture period compared with the control.

APA, Harvard, Vancouver, ISO, and other styles

41

Idris, A. M., and J. K. Brown. "Identification of a New, Monopartite Begomovirus Associated with Leaf Curl Disease of Cotton in Gezira, Sudan." Plant Disease 84, no. 7 (July 2000): 809. http://dx.doi.org/10.1094/pdis.2000.84.7.809c.

Full text

Abstract:

Cotton leaf curl disease (CLCuD) was first reported in Sudan in 1931. Disease symptoms in cotton were characterized by vein thickening and leaf curling, and the suspect causal agent was shown to be transmitted by the whitefly Bemisia tabaci (Genn.) among cotton, okra, and several weed species (2). Although begomovirus etiology was suspected based on symptomatology and vector transmission, no evidence was available that confirmed or disputed this hypothesis. During 1994 to 1996, four cotton samples exhibiting typical CLCuD symptoms were collected from different fields in the Gezira region in Central Sudan and examined for presence of begomovirus DNA. Total nucleic acids were isolated from cotton plants and subjected to polymerase chain reaction (PCR) using degenerate primers (pAV 2644 and pAC 1154) to amplify begomovirus coat protein (Cp) gene and its flanking sequences (1). An amplicon of the expected size (1,300 bp) was obtained by PCR from each sample, and their nucleotide (nt) sequences were determined. Virus-specific primers designed around the Cp sequence were used to amplify an apparent full-length DNA component. Amplicons were cloned and their sequences were determined, yielding a begomoviral component of approximately 2,761 nt (AF260241). Despite exhaustive attempts to amplify a putative viral B-component using degenerate primers based on the intergenic region sequence of the putative “A-component,” or sequences that are highly conserved for other begomoviruses, no B component was detected. The four cotton isolates shared 99.9 to 100% nt sequence identity, and the number and arrangement of predicted open reading frames were similar to those known for other monopartite begomoviruses. Phylogenetic analysis of the putative CLCuV genome with other begomoviruses indicated that its closest relative was Althea rosea enation virus (AREV) from Egypt (AF014881) with which it shares 79% sequence identity, indicating that CLCuV is a unique begomovirus species with a probable origin in the Eastern Hemisphere. CLCuV shared 66% identity with its second closest relative, Cotton leaf curl virus-Pakistan (CLCuV-PK) (AJ002448). These data provide the first direct evidence for the association of a monopartite begomovirus with the leaf curl disease of cotton in Gezira, Sudan, that is distinct from all other begomoviral species described to date. Herein, we provisionally designate this unique begomoviral species as Cotton leaf curl virus from Sudan (CLCuV-SD). References: (1) A. M. Idris and J. K. Brown. Phytopathology 88:648, 1998. (2) A. M. Nour and J. J. Nour. Emp. Cott. Gr. Rev. 41:27, 1964.

APA, Harvard, Vancouver, ISO, and other styles

42

Russell, CA, and IRP Fillery. "In situ 15N labelling of lupin below-ground biomass." Australian Journal of Agricultural Research 47, no. 7 (1996): 1035. http://dx.doi.org/10.1071/ar9961035.

Full text

Abstract:

This paper describes the use of a cotton-wick method to enrich lupin plants with 15N. The method involved the insertion of a cotton thread through the stem and the submergence of the ends of the cotton thread in a solution of highly enriched 15N urea. The distribution of 15N in lupin plant components during pre-reproductive growth and pod filling. and in relation to the frequency of labelling, was determined. The recovery of applied 15N within plant tissues was close to 100% for lupins grown in solution culture, but 15N was not distributed between plant components in the proportions observed for total plant N. Stems and leaves were preferentially labelled with 15N irrespective of the phase of lupin growth when the 15N was applied. Pre-reproductive and mature lupin root biomass was depleted in 15N because of the poor assimilation of 15N within lupin nodules. More applied 15N was found in the root biomass of lupin plants that received fortnightly, compared with weekly, applications of 15N. The distribution of 15N between lupin components was reproducible when 15N-urea was wick-applied to plants of the same age. Recovery of 15N was incomplete when urea was fed to lupins grown in sand culture. Incomplete recovery of root material and loss of 15N associated with root exudates probably contributed to the lower recoveries of 15N in root material in sand compared with solution culture. The ability to manipulate the 15N solution concentration, the volume of solution fed to plants, time of application, and frequency of 15N application underscore the usefulness of the wick technique to label woody legumes with 15N.

APA, Harvard, Vancouver, ISO, and other styles

43

CAO, Jing-Lin, Xian-Long ZHANG, Shuang-Xia JIN, Xi-Yan YANG, Hua-Guo ZHU, and Li-Li FU. "An Efficient Culture System for Synchronization Control of Somatic Embryogenesis in Cotton (Gossypium hirsutum L.)." Acta Agronomica Sinica 34, no. 2 (February 2008): 224–31. http://dx.doi.org/10.1016/s1875-2780(08)60010-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

ZHANG, Xiao-Meng, Song-Jiang LIU, Wen-Fang GONG, Jun-Ling SUN, Bao-Yin PANG, and Xiong-Ming DU. "Effects of Plant Growth Regulators on Fiber Growth and Development in Colored Cotton Ovule Culture in vitro." Acta Agronomica Sinica 43, no. 5 (2017): 763. http://dx.doi.org/10.3724/sp.j.1006.2017.00763.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Buchala, A. J., S. Roulin, and H. Meier. "Polysaccharides in the culture medium of cotton (Gossypium hirsutum L.) ovules cultured in vitro." Plant Cell Reports 8, no. 1 (May 1989): 25–28. http://dx.doi.org/10.1007/bf00735771.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Monsarrat, A., S. Abol-Ela, I. Abdel-Hamid, G. Fediere, G. Kuhl, M. El Husseini, and J. Giannotti. "A new RNA picorna — Like virus in the cotton pink bollwormPectinophora gossypiella (Lep.: Gelechiidae) in Egypt." Entomophaga 40, no. 1 (March 1995): 47–54. http://dx.doi.org/10.1007/bf02372680.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Sawan, Z. M., R. A. Sakr, and O. A. Momtaz. "Effect of 1-naphthaleneacetic acid concentrations and the number of applications on the yield components, yield, and fibre properties of Egyptian cotton (Gossypium barbadense L.)." Australian Journal of Agricultural Research 49, no. 6 (1998): 955. http://dx.doi.org/10.1071/a97139.

Full text

Abstract:

Field experiments were performed in 2 successive seasons at the experimental station, Faculty of Agriculture, Cairo University, Giza, Egypt, on the Egyptian cotton cultivar Giza 75 (Gossypium barbadense L.). Cotton plants were sprayed with the growth regulator 1-naphthaleneacetic acid (NAA) once (after 90 days), twice (90 and 105 days), or 3 times (90, 105, and 120 days after sowing), during the square initiation and bolling stage, at concentrations of 5, 10, 15, 20 or 25 mg/L, respectively. The volume of solution was the same for all treatments, 960 L/ha. The control plants were sprayed with water only. The effect of the previous treatments on yield components, lint yield, and fibre properties was studied. The application of NAA increased the number of opened bolls per plant, boll weight, seed index, and lint yield per ha. Lint percentage, fibre length parameters, and micronaire value were not significantly affected by NAA. Flat bundle strength was significantly increased when NAA was applied once at 10-25 mg/L. The application of NAA twice or 3 times at 15-20 mg/L tended to give the best results on yield components and lint yield of the Egyptian cotton plants.

APA, Harvard, Vancouver, ISO, and other styles

48

Khashimova, Z. S., N. N. Kuznetsova, Z. I. Mardanova, and V. B. Leont'ev. "A study of the mechanism of the action of extensin-like proteins of the cotton plant in a cell culture." Chemistry of Natural Compounds 35, no. 3 (May 1999): 336–38. http://dx.doi.org/10.1007/bf02234858.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Firoozabady, Ebrahim, and David L. DeBoer. "Isolation, culture, and cell division in cotyledon protoplasts of cotton (Gossypium hirsutum and G. barbadense)." Plant Cell Reports 5, no. 2 (April 1986): 127–31. http://dx.doi.org/10.1007/bf00269251.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Sissoko, Fagaye, Sidiki Diarra, and Mamadou Traore. "Le semis direct sous couverture végétale : une opportunité de mise en place rapide du cotonnier en culture pluviale au Mali." International Journal of Biological and Chemical Sciences 14, no. 3 (June 18, 2020): 722–38. http://dx.doi.org/10.4314/ijbcs.v14i3.7.

Full text

Abstract:

En zone soudano-sahélienne, la productivité des cultures est limitée par la disponibilité de l’eau et la fertilité des sols. Le cotonnier en est particulièrement affecté lors de sa culture L’objet de cette étude est d’évaluer l’effet du semis direct sous couverture végétale sur le rendement du cotonnier. Deux variétés de cotonnier (NTA MS334 et BRS 293) ont été utilisées pour comparer 6 systèmes de culture. Le dispositif statistique utilisé a été un Split plot. Les données collectées ont concerné les échantillons de sol, les délais de levée des cotonniers, les densités, les hauteurs, les nombres de capsules et les rendements en graine. La levée a été plus rapide dans les systèmes de culture en semis sous couverture végétale. La densité à la récolte des cinq systèmes en SCV a été de 65 076 plants ha-1 contre 60 564 en SC. Les systèmes de culture n’ont pas eu d’effets statistiquement significatifs sur les rendements en coton graine, mais une différence significative a été observée entre les deux variétés. Le SCV est possible en zone soudano-sahélienne, la levée est plus rapide et permet d’améliorer la densité et le rendement (2 452 kg ha-1 contre 2 373 kg ha-1 en SC) des cultures.Mots clés : Systèmes de culture, cotonnier, densité, capsules, rendement. English Title: Direct sowing under cover crop: an opportunity for rapid establishment of rainfed cotton in MaliIn Sudano-Sahelian zone, crop productivity is limited by water availability and soil fertility. The purpose of this study is to evaluate the effect of direct sowing under cover crop on cotton yield. Two cotton varieties (NTA MS334 and BRS 293) were used to compare 6 cropping systems. The statistical design used was a split plot. The data collected concerned soil samples, cotton plant emergence times, densities, heights, number of bolls and cotton yields. Emergence was faster in seedling cropping systems under cover crop. Harvest density in the five SCV systems was 65 076 plants ha-1 versus 60 564 plants ha-1 in SC. The cropping systems had no statistically significant effect on seed cotton yields, but a significant difference was observed between the two varieties. SCV is possible in Sudano-Sahelian zone, emergence is faster and improves crop density and yield (2 452 kg ha-1 compared to 2 373 kg ha-1 in SC).Keywords: Cropping systems, cotton, density, bolls, yield

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!