PJB-2011-303
MAGNITUDE OF HERITABILITY AND SELECTION RESPONSE FOR YIELD TRAITS IN WHEAT UNDER TWO DIFFERENT ENVIRONMENTS
IKRAMULLAH1, IFTIKHAR HUSSAIN KHALIL1*, HIDAYAT-UR-RAHMAN1, FIDA MOHAMMAD1, HIDAYAT ULLAH1 AND SHAD KHAN KHALIL2
Abstract
A set of 22 F5:7 experimental wheat lines along with four check cultivars (Dera-98, Fakhr-e-Sarhad, Ghaznavi-98 and Tatara) were evaluated as independent experiments under irrigated and rainfed environments using a randomized complete block design at Khyber Pakhtunkhwa Agricultural University, Peshawar during 2004-05. The two environments were statistically different for days to heading and spike length only. Highly significant genetic variability existed among the wheat lines (P<0.01) in the combined analysis across environments for all traits. Genotype × environment interactions were non-significant for all traits except 1000-grain weight indicating consistent performance of wheat genotypes across the two environments. Wheat lines and check cultivars were 2 to 5 days early in heading under rainfed environment compared to the irrigated. Plant height, spike length
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