Evaluation of genetic divergence, character associations and path analysis in upland cotton genotypes

Upland cotton fiber is one of the most used natural fibers in the production of textile materials worldwide. For this reason, the selection of genotypes that meet the industry’s requirements is one of the main goals of cotton breeding programs. This study aimed to estimate the phenotypic and genotypic correlations among fiber traits and identify the direct and indirect effects of these traits on seed cotton yield of upland cotton genotypes in the semi-arid Brazilian Northeast. This study assessed 21 upland cotton genotypes from a complete diallel cross without reciprocals. The design was randomized blocks, with three replications and 21 treatments. The experiment was conducted in the municipality of Patos - PB, in 2015. The statistical analysis consisted of analysis of variance by the F test, phenotypic and genotypic correlation analysis, and path analysis. The studied materials revealed genetic variability for all traits. Path analysis has shown that the traits fiber elongation, fiber strength, and fiber fineness have a direct positive effect on seed cotton yield.

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Studying of economically valuable traits of introgressivе genotypes of upland cotton

Agricultural Technologies ◽

10.35599/agritech/01.03.03 ◽

2019 ◽

Vol 1 (3) ◽

pp. 17-20

Author(s):

Asliddin T. Sadikov

Keyword(s):

Comparative Analysis ◽

Upland Cotton ◽

Economically Valuable Traits ◽

Cotton Genotypes ◽

Standard Cultivar

Some economically valuable traits of upland cotton genotypes are being considered in comparison with standard cultivar “Hisor”. Based on the results, it was established that the yield of raw cotton for all studied genotypes is 66.4-100.1 g/plant. In a comparative analysis of highly productive genotypes, 3 genotypes were distinguished – ALC-86/6 x Sorbon, DP-4025 x Dusti-IZ, NAD-53 x Sorbon, varying from 95.0 to 100.1 g/plant, exceeding the standard cultivar “Hisor” (40,8 g/plant) by 54,2-59,3 g/plant.

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Usefulness of the HMRPGV method for simultaneous selection of upland cotton genotypes with greater fiber length and high yield stability

Genetics and Molecular Research ◽

10.4238/gmr.15038439 ◽

2016 ◽

Vol 15 (3) ◽

Author(s):

F.J.C. Farias ◽

L.P. Carvalho ◽

J.L. Silva Filho ◽

P.E. Teodoro

Keyword(s):

Upland Cotton ◽

Fiber Length ◽

Yield Stability ◽

High Yield ◽

Cotton Genotypes ◽

Simultaneous Selection ◽

Selection Of

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Screening of upland cotton genotypes (Gossypium hirsutum L.) against cotton verticillium (Verticillium dahliae Kleb.) Wilt

Bangladesh Journal of Botany ◽

10.3329/bjb.v48i4.49074 ◽

2019 ◽

Vol 48 (4) ◽

pp. 1185-1192

Author(s):

Sadettin Çelik ◽

Adem Bardak ◽

Oktay Erdoğan

Keyword(s):

Verticillium Wilt ◽

Upland Cotton ◽

Wilt Disease ◽

Cotton Yield ◽

Seed Cotton ◽

Gossypium Hirsutum L ◽

Cotton Genotypes ◽

Susceptible Control ◽

Verticillium Dahliae Kleb ◽

Plot Design

Screening of upland cotton genotypes against Verticillium wilt disease was conducted. The 268 upland cotton genotypes (Carmen and Acala Maxxa cultivar were tolerant- control while cvs. Cukurova 1518 and Acala SJ2 were susceptible-control) were screened against defoliating (PYDV6) and non-defoliating (Vd11) pathotypes of the fungus in a randomized plot design with four replications in growth chamber. Field experiment was established according to the augmented experimental design. Variance analysis was significant (p ≤ 0.05) for all traits against Verticillium wilt. Cvs. Semerkant Uzbek and Taskent 6 were more tolerant than the tolerant-control cultivars against both pathotypes. Most of the genotypes were tolerant in field trial in terms of disease severity that was the lowest for STN K311 genotype in both periods. The highest seed cotton yield was obtained in genotypes as BA119, Okra 204, H-23, Gedera-5, PI 528420 and Acala Royale, which were moderately tolerant to the wilt disease.

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Correlations and path analysis among agronomic and technological traits of upland cotton

Genetics and Molecular Research ◽

10.4238/gmr.15038239 ◽

2016 ◽

Vol 15 (3) ◽

Cited By ~ 2

Author(s):

F.J.C. Farias ◽

L.P. Carvalho ◽

J.L. Silva Filho ◽

P.E. Teodoro

Keyword(s):

Path Analysis ◽

Upland Cotton

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Genetic divergence, path analysis and molecular diversity analysis in cluster bean (Cyamopsis tetragonoloba L. Taub.)

Industrial Crops and Products ◽

10.1016/j.indcrop.2016.05.049 ◽

2016 ◽

Vol 89 ◽

pp. 468-477 ◽

Cited By ~ 14

Author(s):

Mayank C. Boghara ◽

Haresh L. Dhaduk ◽

Sushil Kumar ◽

Mithil J. Parekh ◽

Nilesh J. Patel ◽

...

Keyword(s):

Path Analysis ◽

Genetic Divergence ◽

Molecular Diversity ◽

Diversity Analysis ◽

Cyamopsis Tetragonoloba ◽

Cluster Bean

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Genetic divergence and path analysis in wheat cultivars under heat stress

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632020v5065493 ◽

2020 ◽

Vol 50 ◽

Author(s):

Carlos Eduardo da Silva Oliveira ◽

Agner de Freitas Andrade ◽

André Zoz ◽

Renato Lustosa Sobrinho ◽

Tiago Zoz

Keyword(s):

Heat Stress ◽

Grain Yield ◽

Path Analysis ◽

Genetic Divergence ◽

Block Design ◽

Wheat Breeding ◽

Wheat Crop ◽

Wheat Cultivars ◽

Tropical Regions ◽

Randomized Block Design

ABSTRACT One of the biggest limitations for the wheat crop expansion to Brazilian tropical regions is the high temperature in the rainy season. This study aimed to select, based on genetic divergence and path analysis, cultivars that tolerate cultivation in the summer (heat stress). Nine wheat cultivars were sown, using a randomized block design with three replications, with plots consisting of 10 rows of 6 m and row spacing of 0.15 m. The highest grain yield and number of ears m-2 were observed for the CD 150 cultivar and the largest 1,000-grain weight for CD 116. BRS 220, IPR 136, IPR 144 and BRS Pardela had the highest number of sterile spikelets. The highest number of grains per ear was observed for CD 150, CD 116, BRS Pardela, IPR 130 and IPR 85, showing direct effects on grain yield, evidenced by the path analysis. CD 116 and CD 150 were the most productive cultivars and can be considered as possible parents in wheat breeding programs. IPR 85, CD 116, CD 108 and CD 150 showed a greater tolerance to high temperatures.

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