Abstract:
In order to produce agricultural output that is sustainable, it is crucial to select best varieties using less water for maximum possible yield and to optimize irrigation systems to increase water use. At the University Research Farm, The University of Agriculture Peshawar, a two-year field experiment using a split plot layout with three replications and a randomized complete block design was conducted during rabi 2021-22. The research was carried out in Randomized Complete Block Design (RCBD) with Split plot arrangement having three replications. Treatments were consist of main plot factors i.e. Irrigation at different intervals of wheat hybrids stages i.e.I1: Irrigation at tillering stage (GS 20-29), I2: Irrigation at booting stage (GS 41-47), I3: Irrigation at flowering stage (GS 61-69) and I4: Irrigation at grain filling stage (GS 70-89) and sowings dates and sub plot factor wheat hybrid lines with local check. Plot size was maintained with 3 m x 4.2 m with R-R distance of 30 cm accommodating 14 rows. Results revealed that maximum flag leaf area (27.3 cm2), chlorophyll content (54.1), spike weight (2.8 g), tillers ( 469 m-2), spikelet spike-1 (21) were recorded by crop sown on 5th November followed by 20th Nov while less minimum were recorded for the sowing date of 5th December. By the application of irrigation (I4) maximum flag leaf area (23.3cm2), Chlorophyll content (53.1), spike weight (2.5 g), tillers (446 m-2), were recorded followed by I3 while minimum were noticed by irrigation (I1). In case of sowing windows SD1 (5th November) produced higher biological yield (14234kg ha-1), grain yield (5763kg ha-1) and grains spike-1. In terms of genotypes higher biological yield (13263kg ha-1), grain yield (5224kg ha-1) were attained by wheat hybrid JM 1215. As the sowing delayed (5th Dec), higher amount of water retention capacity (14.4%), water uptake capacity (1.96%) and water saturation deficit (25.7%) were produced. It is concluded from the results delaying sowing dates and improper application of irrigation (I1) decreases the yield of wheat hybrid lines and suggested to obtain a high yield for wheat hybrid lines by the adequate amount of irrigation under optimum sowing intervals.
Page(s):
60-60
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Sustainable Agriculture and Food Security, August 27-31, 2023 , Volume: 0, Issue: 0, Year: 2023