scholarly journals EFFECT OF SOME WEED CONTROL PACKAGES ON SEED COTTON YIELD AND FIBER PROPERTIES OF SOME COTTON GENOTYPES (GOSSYPIUM BARBADENSE, L.) AND ITS ASSOCIATED WEEDS

2014 ◽  
Vol 92 (2) ◽  
pp. 605-625
Author(s):  
IBRAHEM E. SOLIMAN ◽  
AZZA E. KHAFFAGY ◽  
ADEL M. GHALWASH ◽  
AMAL S. ABD EL-AAL
Keyword(s):  
Weed Control ◽  
Gossypium Barbadense ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seed Cotton Yield ◽  
Fiber Properties ◽  
Cotton Genotypes

scholarly journals Determination of Tolerance Levels of Cotton Genotypes Obtained from F6-F7 Generation against Verticillium Wilt Disease Caused by Verticillium dahliae Kleb.

2013 ◽  
Vol 41 (1) ◽  
pp. 184
Author(s):  
Oktay EROÄžAN ◽  
Emine KARADEMIR ◽  
Çetin KARADEMIR ◽  
Aydın UNAY
Keyword(s):  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Fiber Strength ◽  
Disease Index ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Breeding Lines ◽  
Seed Cotton Yield ◽  
Cotton Genotypes ◽  
Verticillium Dahliae Kleb

The susceptibility of cotton genotypes obtained from F6 and F7 generations to Verticillium wilt (VW) disease (Verticillium dahliae Kleb.), was studied under artificial and natural infestation during 2009 and 2010 growing seasons at the Cotton Research Institute’s, Nazilli, Aydın, Turkey. In this study, fifteen cotton breeding lines and two control varieties were used as plant material. During the cotton growing season, foliar disease index (FDI), vascular disease index (VDI) and pot disease index (PDI) were observed in addition to seed cotton yield and some fiber quality characteristics. According to the obtained results, disease severity (DS) values observed in pot experiments were higher than field trials. In terms of DS, ‘Tamcot CD3H’ × ‘Tamcot Luxor-III’, ‘Maraş92’ × ‘Tamcot Sphinx’ and ‘Sayar 314’ × ‘Stoneville 453-I’ breeding lines exhibited similar values with tolerant ‘Carmen’ variety. ‘Tamcot CD3H’ × ‘Tamcot Sphinx’, ‘Sayar 314’ × ‘Stoneville 453-I’, ‘Sayar 314’ × ‘Stoneville 453-II’ and ‘Stoneville 453’ × ‘Tamcot Sphinx’ breeding lines which gave similar DS values with tolerant ‘Carmen’ variety were statistically on the same group with ‘Carmen’ variety suitable to seed cotton yield. In this study, the disease tolerant breeding lines had higher fiber strength values than susceptible lines, the lowest fiber strength value obtained from ‘Cukurova 1518’ susceptible variety.

scholarly journals Assessment of seed cotton yield and fiber properties portrayal of some candidate cotton varieties in national coordinated varietal trials at changing environment of Sindh and Balochistan

2020 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Abdullah Keerio ◽  
Rehana Anjum ◽  
Abdul Razzaque Channa ◽  
Sultan Ahmed Baloch
Keyword(s):  
Yield Potential ◽  
Test Results ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Biochemical Tests ◽  
Bt Toxin ◽  
Seed Cotton Yield ◽  
Fiber Properties ◽  
Commercial Cultivation ◽  
High Yielding Varieties

Thirty six candidate cotton varieties developed by different breeders of Pakistan were tested consecutively for two years (2017 and 2018) and at seven locations of Sindh and Balochista Provinces in national coordinated varietal trials (NCVT).  The trials were conducted to explore seed cotton yield potential and fiber properties against two check varieties (CIM-602 and FH-142/IUB-13).  As per claim of the breeders, the samples of all varieties for both the years were sent to four designated biotechnological laboratories for conducting biochemical tests also. The results revealed highly significant differences among the varieties for both the years. During the year 2017, on an average of six location, top ten high yielding varieties recorded were GH-Haadi, Weal-AG-6, VH-189, GH-Mubarak, Weal-AG-5, MNH-1026, Badar-1(DG), FH-444, CIM-343 and TJ-Max(DG) which yielded 3434, 3407, 3342, 3255, 3251, 3248, 3185, 3154, 3134 and 3131 kg/ha seed cotton yield respectively. When the results of 2018 trial were looked at, averagely top ten high yielding varieties were GH-Haadi, ICI-2121, CRIS-613, VH-383, VH-189, NIAB-898, FH-490, Cyto-225, Tahafuz-10(DG) and GS-Ali-7 with 3526, 3356, 3306, 3139, 3101, 3091, 3084, 3074, 3060 and 3026 kg/ha of seed cotton yield respectively. However, on an average of both the years (2017 and 2018), top ten high yielding varieties were GH-Haadi, VH-189, CRIS-613, Weal-AG-6, GH-Mubarak, Badar-1(DG), ICI-2121, Weal-AG-5, FH-940 and MNH-1026 producing 3480, 3221, 3186, 3155, 3113, 3083, 3057, 3054, 3042 and 3042 kg/ha of seed cotton respectively. As regards fiber properties, (04 candidate varieties) could qualified all fiber standards set by government. The biochemical test results received from all four laboratories revealed that on an average of four laboratories and two years, the trait purity range recorded was from 42 to 96 percent, whereas, quantification of Bt toxin ranged from 0.74 to 2.62. From the present study, it was concluded that almost 15-20 candidate varieties have the potential to be included among already approved varieties for commercial cultivation in the province of the Punjab.

scholarly journals Evaluation of Weed Control Efficacy and Seed Cotton Yield in Glyphosate Tolerant Transgenic Cotton

2013 ◽  
Vol 04 (06) ◽  
pp. 1159-1163 ◽  
Author(s):  
Nithya Chinnusamy ◽  
Chinnusamy Chinnagounder ◽  
Prabhakaran Nachimuthu Krishnan
Keyword(s):  
Weed Control ◽  
Transgenic Cotton ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Control Efficacy ◽  
Seed Cotton Yield

scholarly journals Weed control via intercropping with gliricidia: I. cotton crop

2009 ◽  
Vol 27 (1) ◽  
pp. 97-104 ◽  
Author(s):  
P.S.L. Silva ◽  
J.C.V. Silva ◽  
L.P. Carvalho ◽  
K.M.B. Silva ◽  
F.C.L. Freitas
Keyword(s):  
Weed Control ◽  
Dry Matter ◽  
Chemical Pollution ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Weed Species ◽  
Seed Cotton Yield ◽  
Fiber Yield ◽  
Poaceae Family ◽  
Uniform Manner

The majority of cotton grown commercially in the world has white lint, but recently, there has been a growing interest in colored lint cotton in several countries, including Brazil. The use of naturally-colored fiber reduces chemical pollution. The objective of this paper was to evaluate cotton cultivar fiber yield in response to weed control via intercropping with gliricídia. Cultivars BRS-Verde (greenish fibers), BRS-Rubi (reddish brown fibers), BRS-Safira (brown fibers), and BRS-187 8H (white fibers) were submitted to the following treatments: no hoeing, two hoeings (at 20 and 40 days after transplanting), and cotton intercropped with gliricídia. In the intercropped treatment, gliricídia was planted between rows of cotton plants, using one seedling pit-1, in pits spaced 50.0 cm apart. Twelve weed species predominated in the experiment, many of them belonging to the Poaceae family. Weeds occurred at different frequencies and in a non-uniform manner in the experimental area. Cultivars did not influence weed dry matter. Intercropping with gliricídia reduced weed dry matter but did not prevent reductions in cotton fiber and seed cotton yield, which were higher in hoed plots. Cultivar BRS Safira had the highest fiber yield, but no differences were observed between cultivars regarding to seed cotton yield.

Effects of Foliar Micronutrient Fertilizers on the Yield of Irrigated Cotton on the Vertisols of the Sudan Gezira

1992 ◽  
Vol 28 (3) ◽  
pp. 265-271 ◽  
Author(s):  
H. M. Ishag
Keyword(s):  
Field Experiments ◽  
Calcareous Soils ◽  
Gossypium Barbadense ◽  
Reproductive Efficiency ◽  
Nutrient Depletion ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Foliar Fertilizer ◽  
Seed Cotton Yield ◽  
Sudan Gezira

SummaryField experiments were conducted on very alkaline calcareous soils to investigate the effects of two proprietary foliar micronutrient fertilizers, Wuxal Suspension Polymicro and Bayfolan 11-8-6, containing iron, zinc, manganese and boron, on the seed cotton yield of Gossypium barbadense and G. hirsutum. Two applications of foliar fertilizer, one at flowering and one three weeks after flowering, increased yield by 40–68%. The foliar fertilizers enhanced earliness and minimized nutrient depletion from the leaves, and thus increased reproductive efficiency.

scholarly journals Genetic variability and association between oil and economic traits for some new Egyptian cotton genotypes

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Sara E. I. Eldessouky ◽  
A. B. A. El-Fesheikawy ◽  
K. M. A. Baker
Keyword(s):  
Oil Content ◽  
Agricultural Research ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Breeding Programs ◽  
Seed Cotton Yield ◽  
Boll Weight ◽  
Cotton Genotypes ◽  
Seed Index

Abstract Background Cotton breeding programs mainly focus on improving cotton fibers, but less attention has been paid by breeders to cottonseed oil improvement. Breeding cottonseed for oil content has mainly depended on phenotypic information used to select varieties with high seed oil content. The purpose of this study was to evaluate some cotton genotypes regarding their oil content and other characters related to fiber yield, in order to select genotypes with high oil content and acceptable levels of the other characters. Seventeen different genotypes of cotton were used in this study. A two-year experiment was carried out at Sids Agricultural Research Station, Beni Suef, Egypt, during 2017 and 2018, using a randomized complete block design with six replications. Seed cotton yield, lint cotton yield, boll weight, seed index, embryo index, oil % and embryo oil index characters were recorded. Results The analysis of variance results showed highly significant differences among the genotypes for all the studied traits except boll weight in season 2017. The overall cotton embryo oil % ranged from 33.40 to 40.28 among the genotypes, while the overall cotton embryo oil index ranged from 1.79 to 2.47. Maximum cotton embryo oil % was noted by the genotypes 15 [{(G83 × G80) × G89} × Australian] and 8 [(G 91 × G90) × (G 85 × G 83)], while maximum cotton embryo oil index was noted by the genotype 13 [(G 91 × G 90) × G80]. The results showed positive correlations between seed cotton yield and lint cotton yield, seed index and embryo index, seed index and embryo index oil %, embryo index and embryo index oil %, and oil % and embryo index oil %. Conclusions It could be concluded that using seed or embryo oil percentages as criteria for differentiating genotypes according to their oil content is misleading and the best efficient measure is using the seed or embryo oil indices because they depend on weight basis. Also, Genotypes 13, 15 and 8 were the best genotypes regarding oil % and they could be used in breeding programs for cotton oil improvement.

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