EVALUATION OF MORPHO-PHYSIOLOGICAL ATTRIBUTES AND YIELD OF TRADITIONAL AROMATIC RICE CULTIVARS IN AMAN SEASON

Abstract

The experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka during July to December, 2017 in Aman season to investigate the morpho-physiological attributes and yield performance of nine traditional aromatic rice cultivars. The experiment comprised of one factor viz. Kalizira, Begun Bichi, Chinigura, Chiniatop-1, Sada Sonne, Khoi Sonne, Kataribhog, Badshabhog and Dulabhog (BR 5). The experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. Significant variation was found on morphological, physiological, yield and yield contributing parameters in the traditional aromatic rice cultivars. The lowest grain yield (1.29 t ha -1 ) was obtained from Chiniatop-1. The highest leaves hill -1 (56.23) was recorded from Khoi Sonne. The lowest leaves hill

(38.3) was obtained from Kataribhog. Maximum leaf area index of 6.03 was recorded in cultivar Chinigura followed by, Badshabhog (5.33) and Sada Sonne (5.01) and minimum of 3.64 was recorded with Kalizira at 60 DAT. At 45 DAT maximum LAR (116.75 cm 2 g -1 ) was recorded in Begun Bichi and minimum LAR (72.35 cm 2 g -1 ) in Chiniatop-1. Highest CGR of 28.23 g m

day -1 was recorded by Dulabhog and minimum CGR was recorded in the variety Kalizira (21.02 g m -2 day -1 ). Badshabhog produced the second highest grain panicle -1 (156.30). Sada Sonne produced the lowest number of grains panicle -1 (53.63). Significant influence of different varieties was observed on 1000-grain weight. The highest 1000 grain weight (17.66 g) was recorded in Khoi Sonne. The lowest 1000 seed weight (9.23 g) was observed in Kalizira. Among the tested nine varieties Chinigura showed the highest grain yield (2.80 t ha -1 ) and the second highest grain yield in Begun Bichi (2.43 t ha ). While the lowest grain yield (1.29 tha -1 ) was obtained from Chiniatop-1. The Kataribhog showed the highest harvest index (41.49%). On the other hand, the lowest harvest index (28.94%) was obtained from Khoi Sonne.

-1 -1 -2