Yield contributing characters effect of submerged water levels of boro Rice (Oryza sativa L.)
Journal Title: Scientia Agriculturae - Year 2015, Vol 9, Issue 1
Abstract
The field experiment was conducted at the Field Laboratory of Sher-e-Bangla Agricultural University (SAU), Dhaka in boro season with a view to find out the influence of water level and seedling number hill-1 on growth and yield of boro rice. The entire yield component was significantly unaffected by seedlings number hill-1 but percent filled grains was decreased with increasing seedling number hill-1. Grain yield was significantly influenced by seedling number hill-1 but straw yield as well as biological yield was unaffected. The highest grain yield (6.49 t ha-1) was found with 2 seedlings hill-1 which was similar to 1 and 3 seedlings hill-1 and the lowest grain yield (6.00 t ha-1) was at 4 seedlings hill-1. Interaction effect of water level and seedling number hill-1 had significant effect on growth as well as yield contributing characters except duration of flowering, effective tillers hill-1 and 1000 grain weight. Among the yield contributing characters total grains panicle-1, filled grains panicle-1 and percent filled grains were significantly lowest at saturated condition with 4 seedlings hill-1 compared to other treatments. Significantly the highest grain yield was recorded from 1 to 3 seedlings hill-1 irrespective of their water level and the lowest grain yield was at 4 seedlings hill-1 under continuous saturation as well as submerged condition. Field water use efficiency was significantly higher (6.10 kg ha-1 mm-1) at continuous saturated condition and lower (4.57 kg ha-1 mm-1) at submerged condition.
Authors and Affiliations
Md. Maksudul Haque, Ratna Rani Majumder, Tapas Kumer Hore, Md. Romel Biswash
Keywords
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- EP ID EP163290
- DOI 10.15192/PSCP.SA.2015.9.1.2329
- Views 123
- Downloads 0
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