Performance of high yielding boro rice varieties in Khagrachhari district of Bangladesh
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Abstract
The entire varietal performance including grain quality is a crucial element for sustainable production when recommending a variety for cultivation. The performance of six popular boro rice (Oryza sativa L.) varieties was evaluated using yield and growth characteristics to determine which varieties were the top performers. Plant height (PH), days to flowering (DTF), days to maturity (DTM), number of total tillers per hill (NTH), number of effective tillers per hill (ETH), number of non-effective tillers per hill (NETH), panicle length (PL), number of filled grains per plant (FG), number of unfilled grains per plant (UFG), thousand grain-weight (TGW), grain yield (GY), dry straw weight (DSW), and % harvest index (HI) revealed the significant differences among the varieties. Maximum GY was noted in Binadhan-10 (6.72 t/ha) followed by Binadhan-12 (6.64 t/ha), BRRI dhan29 (6.55 t/ha) and these three varieties were significantly identical. For grain characteristics, the highest TGW was found in Binadhan-10 (28.74 g) and the lowest was in Binadhan-12 (16.07 g). Among the varieties, Binadhan-12 is getting popular due to its short grain characteristics and higher GY. Therefore, it should be recommended that in Chattogram Hill Tracts especially in the Khagrachhari districts the variety with short-medium grain characteristics and higher GY is preferable for boro season.
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