INFLUENCE OF ROW SPACING ON GRAIN YIELD OF WINTER WHEAT GENOTYPES

Abstract

A study was conducted at Shaheed Z. A. Bhutto Agricultural College Dokri, for estimation of proper row space effects on economic yield and its components. Four genotypes of winter wheat, viz; T.J-83, Sarsabz, TD-I and Kiran-95 were included in this study. The row spacing i-e; 15 cm, 22 cm, 30 cm and 40 cm were managed. The studied traits were taken on days to initial heading, days taken to maturity, stature length (cm), number of tillers plant-1, main peduncle length in (cm), seeds spike-1, 1000 seed weight (g), straw weight plant-1 (g), seed yield plant-¹ (g) and harvest index (%). The results revealed that significant differences were observed for genotypes between the row spaces and their interaction in studied parameters. The 30 cm row space was more effective for most of the traits including seed yield. The maximum seed yield plant-1, main peduncle length, seeds spike-1 and 1000 seed weight shown by Sarsabz under 30 cm row space. The poor performance of studied genotypes was noted at 15 cm row space. Similarly row space of 30 cm set more tillers plant-1 by Sarsabz over rest of the cultivars. The interaction between genotypes at 30 cm space proved a good combination and Sarsabz showed superiority over rest of the genotypes.