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BREEDING FOR YIELD AND YIELD COMPONENTS IN SEMI-DWARF WHEAT (TRITICUM AESTIVUM L.) GENOTYPES

KARIM DINO JAMALI, SAIMA ARAIN, M.H. NAQVI, A.M. SOOMRO, M.A. ARAIN AND SYED ASHRAF ALI

Abstract: Yield and yield component studies were conducted for 15 advanced lines/genotypes including three check varieties viz. Sarsabz, Kiran-95 and Soghat-90. The data were recorded for the plant height, days to heading, spike length, number of spikelets per spike, number of grains per spikelet, number of grains per spike, grain yield of main spike, 1000-grain weight, and grain yield (kg/plot). In this yield comparison line 6-12 had the highest plot grain yield (1.75 kg). The subsequent lines which had comparatively better grain yields were 3-02 (1.68 kg) and line 7-03 (1.6 kg). The possible reasons for the highest grain yield in 6-12 could be due to mid maturing, medium plant height (80.3 cm) and higher number of grains per spikelet. The higher grain yield (kg/plot) in line 7-03 could be due to its higher number of grains per spike, higher grain yield of main spike and highest number of grains per spikelet. In check varieties Kiran-95 had comparatively higher grain yield (kg/plot) the possible reasons could be due to its early heading, higher number of grains per spike.

Nuclear Institute of Agriculture (NIA), Tando Jam, Pakistan

Email: niatjam@hyd.paknet.com.pk