DefinePK

Abstract

Delayed picking of BT cotton, changing climate resulted in late sowing of wheat in cotton-wheat cropping system of Southern Punjab which have serious implications for food security in the region is always crucial for getting higher yields. If sowing is delayed, it becomes necessary to adopt certain agronomic practices to tackle this issue of lower yield. Keeping in view the above problem a field study was performed at College of Agriculture, Dera Ghazi Khan to assess the impact of seeding rates and row spacings on yield and yield components of late sown wheat. The treatments were comprised of two seeding rates i.e. 125 kg ha-1 and 150 kg ha-1 and three row spacings i.e. 10 cm, 15 cm and 20 cm. The treatments were laid out in randomized complete block design (RCBD) with factorial arrangements and performed in triplicate. The cultivar Aas-2011 was used as experimental material by altering row spacing and seeding rates with respect to overall performance. The results revealed that seed rate of 150 kg ha-1 with row spacing of 20 cm were more efficient in influencing the yield and yield contributing traits i.e. plant population, plant height, spike length, spikelet spike-1, productive tillers plant-1, grains weight spike-1, 1000-grain weight, biological yield, grain yield and straw yield as compared to 125 kg ha-1 with any row spacing. Higher seed rate can useful to compensate yield losses due to delayed sowing of wheat.
Keywords: Wheat; Late wheat sowing; Planting geometry; Planting density
http://dx.doi.org/10.19045/bspab.2016.50010