Delay in planting decreases wheat productivity
2012
Hussain, M. (Dankook Univ., Chungnam (South Korea). Dept. of Crop Science and Biotechnology) | Farooq, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Agronomy) | Shabir, G. (Bahauddin Zakariya Univ., Multan (Pakistan). Univ. Coll. of Agriculture) | Khan, M.B. (Bahauddin Zakariya Univ., Multan (Pakistan). Univ. Coll. of Agriculture) | Zia, A.B. (Bahauddin Zakariya Univ., Multan (Pakistan). Univ. Coll. of Agriculture) | Dong-Jin, L.
This study was conducted to evaluate the growth and yield response of different wheat varieties sown on different dates. Five wheat varieties viz. Shhar-2006 (SH-06), Faisalabad-2008 (FSD-08), Lassani-2008 (LS-08), Abdul Staar-2002 (AS-02) and Triple Dwarf-1 (TD-1) were sown, at fortnightly interval, on 25th Oct, 10 and 25th Nov, and 10th and 25th Dec. Delayed wheat planting after 10th Nov decreased the grain yield by 60 kg per ha for each day; however, varietal response was significantly variable. Although, more productive tillers were noted in 25th Oct sown wheat; however wheat productivity was maximum from wheat sown on 10th Nov owing to significant increase in spike length, spikelets per spike and grain weight. Among wheat varieties, maximum grain yield was harvested in LS-08 followed by AS-02; whereas minimum grain yield was noted in wheat variety TD-1. Regarding crop allometry, higher leaf area index (LAI) and crop growth rate (CGR) were noted from ply sown crop, whereas among varieties, LS-08 and AS-02 had higher LAI and CGR than other varieties. Interaction of sowing dates and wheat varieties indicated that LS-08 and AS-02 planted on 10th Nov outperformed with maximum grain yield. In conclusion, wheat varieties LS-08 and AS-02 may be planted on 10th Nov to fetch maximum wheat productivity.
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