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Research Article |

Detecting Similarities and Differences of Promising Elite Cotton (Gossypium hirsutum L.) Genotypes Influenced by Seed Cotton Yield and Related Components

Cotton (Gossypium hirsutum L.) is a premier cash and natural fibre crop grown worldwide. Cotton Breeding Programme in Zimbabwe is driven by the basic principle of continuous improvement in genetics of available cotton germplasm for high production and productivity under varying agro-climatic conditions. An experiment was carried out at six sites namely Chitekete, Chizvirizvi, Masakadza, Muzarabani, Tokwane and Umguza over two seasons, 2020 and 2021. Ten treatments that comprised of eight promising lines and two checks were replicated three times and laid out in a Randomized Complete Block Design. Gross plot was 36m2 and Net plot was 16m2. Seed Cotton yield, lint yield, plant height, 100 boll weight, Earliness Index, Boll weight and Gin out turn were measured and data was analyzed using Genstat 18th version. Maximum variation as indicated by high values that ranged from 16.4% to 20.1% was observed for Earliness Index, Total Seed Cotton, Plant Height and Lint Yield whilst least variation was recorded for Gin-Out-Turn and 100 seed weight. Mean performance results revealed a yield difference of 539kgha-1 between the highest and the lowest yielding candidate thus 22% yield advantage for 83-01-4 over 820-01-1. Of the seven computed principal components only PC1 and PC2 achieved eigenvalue >1 and contributed about 63.99% of the accumulative variation among the attributes under examination. The study results gave the breeder an option to target parents with strengths in some important traits for use in cotton yield improvement programmes. Key suggestions were also hinted for use in hybridization combinations.

Principal Component Analysis, Correlation Coefficient, Hybridization, Breeding Programmes, Variation

APA Style

Marco, M., Washington, M. (2024). Detecting Similarities and Differences of Promising Elite Cotton (Gossypium hirsutum L.) Genotypes Influenced by Seed Cotton Yield and Related Components. Journal of Plant Sciences, 12(1), 30-35. https://doi.org/10.11648/jps.20241201.15

ACS Style

Marco, M.; Washington, M. Detecting Similarities and Differences of Promising Elite Cotton (Gossypium hirsutum L.) Genotypes Influenced by Seed Cotton Yield and Related Components. J. Plant Sci. 2024, 12(1), 30-35. doi: 10.11648/jps.20241201.15

AMA Style

Marco M, Washington M. Detecting Similarities and Differences of Promising Elite Cotton (Gossypium hirsutum L.) Genotypes Influenced by Seed Cotton Yield and Related Components. J Plant Sci. 2024;12(1):30-35. doi: 10.11648/jps.20241201.15

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This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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