EFFECT OF SEED RATE AND ROW SPACING ON YIELD AND YIELD COMPONENTS OF WHEAT (TRITICUM AESTIVUM L.).

A field experiment was conducted at Adaptive Research Farm, Vehari, Pakistan during 2006-07 to evaluate the effect of different seed rates and row spacings on the growth and yield of wheat (Triticum aestivum L.). Four levels of seed rates (125, 150, 175 and 200 kg/ha) and three row spacings (11.25, 15.0 and 22.5 cm) were tried (cv. Uqab 2002), The results showed that seed rate of 150 kg gave higher grain yield (4.10 t/ha). Among row spacings 22.5 cm performed better (3.96 t/ha) as compared to other spacings (3.82-3.87 t/ha). Interaction effect of seed rates and row spacings was non-significant. [ABSTRACT FROM AUTHOR]