Genotypes and environment interaction and cluster analysis for fresh forage yield Sorghum bicolor (L.) Moench
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 11
Abstract
The objective of this study was to determine the interaction effect between genotype and environment (G×E) and the stability of forage sorghum [Sorghum bicolor (L.) Moench] cultivars. In order to evaluate 15 advanced lines of Sorghum bicolor (L.) Moench., an experiment was carried out in a randomized complete block design with four replications at Gorgan Agricultural Research Station for three years, from 2007 to 2009. Combined analysis of variance showed significant difference (P<0.01) for fresh forage yield among cultivars and cultivar × year interaction. In order to study the response of cultivar to different years and determine stable cultivars, stability analysis was done using parametric and nonparametric methods. Results of the environmental variance and coefficient variance showed that KFS14 and KFS13 had the highest stability in different years. Based on non-parametric methods, i. e average, variance and standard deviation of rank, cultivars KFS1, KFS16 and KFS17 had the highest stability. Results of variance and stability and cluster analysis showed that KFS13، KFS14, KFS10 and KFS11 had the highest stability in different years. Based on these findings, the use of these cultivars is recommended in breeding programs for increasing stability.
Authors and Affiliations
Mohamad Taghi Feyzbakhsh, Hassan Mokhtarpour, Arezoo Pourfarid ,Fatemeh sheikh
Keywords
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