Genetic behaviour and analysis of some yield traits in wheat (Triticum aestivum L.) genotypes
2011
Shabbir, G. (PMAS-Arid Agriculture Univ., Rawalpindi (Pakistan). Dept. of Plant Breeding and Genetics) | Ahmad, N.H. (PMAS-Arid Agriculture Univ., Rawalpindi (Pakistan). Dept. of Plant Breeding and Genetics) | Akram, Z. (PMAS-Arid Agriculture Univ., Rawalpindi (Pakistan). Dept. of Plant Breeding and Genetics) | Tabassum, M.I. (Sugarcane Research Inst., AARI, Faisalabad (Pakistan))
A study was carried out in field area of the Department of Plant Breeding and Genetics, PMAS Arid Agriculture University, Rawalpindi, Pakistan during 2007-09 to investigate the inheritance of gene action in wheat genotypes viz. Chakwal-97 (CH-97), Inqalab-91, GA-2002, 6C001 and 6C002 in a 5 x 5 diallel cross. Data were recorded for yield traits like spike length, number of spikelets per spike, number of grains per spike, 1000-grain weight and grain yield per plant. The crosses were sown in randomized complete block design in three replications. The results revealed highly significant specific combining ability effects for 1000-grain weight (210.01) and grain yield per plant (93.70), significant for spike length (10.67) and number of spikelets per spike (10.31). It reflected non-additive type of gene action for these characters suggesting that selection would be effective in later generations. Higher general combining ability estimates for number of grains per spike (403.29)
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