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Yield Comparison of some Improved Wheat Varieties under Different Sowings Dates as Rainfed Crop

Yield Comparison of some Improved Wheat Varieties under Different Sowings Dates as Rainfed Crop

Mukhtarullah1, Jawad Ali2 and Mohammad Akmal1*

1Department of Agronomy; 2Climate Change Center (CCC), The University of Agriculture, Peshawar, Pakistan.


Abstract | Wheat is among the staple food crops in the world. In Pakistan, it is planted on a significant cropped area (Ca. 38%) every year. In Khyber Pakhtunkhwa (KP), wheat is also a popular crop in the cropping system, however, average yield differs by 100% from the national average yield due to rainfed planting (67%). Sowing of wheat in the area starts in October subject to onset of winter rains which delays its planting in the season. This study aims to compare yield performance of newly released varieties of wheat by delay in sowing in the season under rainfed condition. Field experiment was conducted at Agriculture Research Farm, Ahmad Wala Karak, Pakistan in a randomized complete block design (RCBD); split plot arrangements in three replications during winter season 2014-15. Sowing dates were assigned to main plot and varieties to sub plot as treatments. Thirteen wheat varieties (i.e. Pak.2013, Dharabi, Tatara, Lalma, Chakwal-50, Shahkar-2013, PS-2005, Hashim-2008, Zam-2004, KT-2000, Atta-Habib, Siren-2010 and Khttakwal a local as check) were planted on five dates (i.e. 29th Oct, 10th Nov, 25th Nov, 10th Dec, and 25th Dec. 2014) using a seed rate of 130 kg ha-1. Nutrients were applied as one bag urea (N 46%) and di-ammonium phosphate (N 18% and P 46%), each at sowing time during seedbed preparation and an extra bag of urea in February at stem elongation stage of the crop (each bag 50 kg ha-1). Rests of the cultural practices were kept common to all plots. Both sowing dates and varieties have resulted differences in plant height (cm), spikes m-2, spike weight (g), thousand grains weight (g) which affected the grain yield. Based on biomass, which contributes from plant height and grains weight, varieties Lalma, Chakwal-50 and Pak-2013 could be the best varieties for planting early to late in season in the area. Delay sowing of wheat crop due to dry weather i.e. late rainfall and/or eventuality of the previous crop of the cropping system could result higher wheat production from the variety Pak-2013 instead of growth the existing local (Khattakwal). Higher grain yield for future food security with growing population is important to be harvested with replacing the existing low yielding varieties by any of the improved available wheat varieties (e.g. Lalma, Chakwal-50, and Pak.-2013) in Karak area where almost all wheat is planted as rainfed crop.  


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Sarhad Journal of Agriculture


Vol. 37, Iss. 2, Pages 331-713


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