Volume 11, Issue 31 (12-2019)                   jcb 2019, 11(31): 226-236 | Back to browse issues page

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Alishah O, MahmoodJanloo H, Hekmat M H, Naderi Arefi A, Sidmasoomi S Y, Talat F. Investigation of Genotype × Environment Interaction and Yield Stability of Hopeful Cotton (G.hirsutum L.) Genotypes. jcb. 2019; 11 (31) :226-236
URL: http://jcb.sanru.ac.ir/article-1-1041-en.html
Abstract:   (432 Views)
The objective of this study was to determine genotype × environment (GE) interaction and yield stability of ten cotton genotypes. The trials were conducted at randomized complete block design (RCBD) with four replications at six locations during 2014-2015 cropping seasons. Combined analysis of variance (ANOVA) revealed significant effect of year, location, genotypes (G), environment (E), genotype × environment interactions (GE), binary and trinary factors (year, location, genotype) yield, boll weight, boll number, earliness index and monopod branches number. By comparing the combined means of data at year and location level, it was revealed that the K8802 performed high yielding genotype (3691 kgh-1) followed by NSK847, SKSH-249, BC-244 and GKTB-113. According to yield, stability parameters and adaptability analysis, the NSK847, SKSH-249 and GKTB-113 were ideal genotypes with broad adaptability. Specific adaptation genotypes (e.g. K8802) are ideal for maximizing yield and yield stability in stress conditions. Stability parameters similarity for genotype selection ranged from 67 to 100 percent. Significant relationships were found between yield and stability parameters (except for regression coefficient, bi). Finally, based on the results of this study it can be concluded that the NSK-847 at first place, followed by genotypes GKTB-113 and SKSH-249 as stable genotypes with high yields for release have been identified for cotton breeding program in Iran.
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Type of Study: Research | Subject: General
Received: 2019/04/13 | Revised: 2019/12/29 | Accepted: 2019/07/10 | Published: 2019/12/4

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