Influence of different row spacing on agronomic traits in different wheat varieties

A series of experiment was conducted at Malir Experimental Farms, Sindh Agriculture University, Tandojam during 2009-10 to study the response of different wheat varieties under various row spacing. The experiment was laid out in RCB design with split plot arrangements having four replications. Three varieties of wheat (Sarsabz, Kiran - 95 and TD-1) and three rows spacing (15.00, 22.50 and 30 cm) were used studied. The results indicated that maximum biological yield (10017 kg ha-1), plant height (104.00) in Sarsabz, spike length (12.65 cm), grain yield (4659.0 kg ha-1) in Kiran-95, tillers (333.00 m2), number of grains spike-1 (46.66), grain weight spike-1 (45.41 g) in TD-1 were recorded under 30.00 cm row spacing; while 1000- grain weight (44.75 g) in under 22.50 row spacing and harvest index (48.10 %) under 15.00 cm row spacing in TD-1 variety. Based on the findings it can be concluded that wheat variety Kiran-95, followed by T D-1 and Sarsabz produced better performance with respect to yield and yield components. Similarly, 30 cm row apart was superior to 15.00 and 22.50 cm row spacing.