PJB-2020-34
SPRING WHEAT GROWTH PERFORMANCE OF SELECTED VARIETIES UNDER POTASSIUM LEVELS
Mohammad Akmal
Abstract
Wheat (Triticum aestivum L.) is grown as staple food crop both on irrigated and rainfed condition. In Pakistan, wheat is leading crop grown on a significant area every year with very low average yield. Appropriate nutrition is the demand of high a yielding variety in appropriate agro-climate to perform. Potassium in wheat fertilizer is usually added. The study focused on different K-levels effect on growth and yield. Experiment was conducted in 2018-19 in a Randomized Complete Block Design, four replications at Research Farm, University of Agriculture, Peshawar considering two factors varieties (i.e. Pirsabak-2013, Pirsabak-2015 and Pukhtunkhwa-2015) and K-levels (i.e. 0, 40, 60 and 80 kg h-1). Sowing was done in November in 30cm rows using hand drill. Crop was irrigated as per demand. Obviously, a non-significant effect observed on days to emergence, but varieties differed in anthesis. Among varieties, Pirsabak-2015 was the best producing maximum tiller (m-2), height (cm), spike's weight and grain number including their weight. Role of K was found significant on growth and performance of the wheat crop. Increasing K levels showed a significant effect on growth and yield traits and hence resulted better biomass and grain yield. The application of 60 kg K ha-1 is recommend the optimum for wheat for any high yielding wheat variety in the climate similar to Peshawar valley where crop if grown on irrigated condition may under goes partial drought due to closure of the irrigation canals in the region.
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