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The current field experiment was conducted to estimate the genetic divergence between different upland cotton genotypes and also to know the extent of correlation of seed cotton yield with its associated and fiber characters at Botanical Garden, Department of Plant Breeding and Genetics, Sindh Agriculture University, Tandojam in Kharif season during year of 2017-2018. The experimental design was laid out in randomized complete block design with four replications for nine genotypes of upland cotton were Bakhtawar, Mehran, Koonj, Sindh-1, NIAB-78, FH-901, BH160, Chandi-95 and BT-3701. The following observations were recorded. The mean squares from analysis of variance revealed highly significant differences for majority of the traits among the tested genotypes, indicating that used materials can be evaluated for further experiments. Based on mean performance, the genotype NIAB-78 exhibited desirable performance for a wide range of traits, exhibiting its importance in cotton breeding programs. Considering genetic distance, the greater distance was found between Koonj and NIAB-78, followed by Bakhtawar and NIAB-78, NIAB-78 and BT-3701, NIAB-78 and FH-901 and NIAB-78 and Chandi-95, signifying their importance for upcoming hybridization programs in cotton crop. The results also showed that sympodial branches plant-1 , bolls plant-1 , boll weight and seed index established positive and significant associations with seed cotton yield plant-1 , revealing that genotypes having higher extent of these traits may be preferred in selection for evolving high yielding cotton genotypes.
Muhammad Ashraf Kakar. (2021) ASSESSMENT OF GENETIC DIVERGENCE AND CHARACTER ASSOCIATION IN UPLAND COTTON (GOSSYPIUM HIRSUTUM L.) GENOTYPES, , Volume 18, Issue 2.
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