STUDY ON YIELD AND GRAIN QUALITY OF SOME AROMATIC RICE VARIETIES

Abstract

A field experiment was conducted at Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from June to December 2017 with seventeen aromatic rice varieties viz., V 1 = Chiniatap 1, V 2 = Chiniatap 2, V = Kataribhog 1, V 4 = Kataribhog 2, V 5 = BRRI dhan34, V 6 = BRRI dhan37, V = BRRI dhan38, V 8 = BR5/Dulabhog, V 9 = Khoisanne, V 10 = Sadasanne, V 11 7 = Zirabhog, V = Begun bichi, V 13 = Shakkhorkhora, V 14 = Chinigura, V 15 = Kalijira, V = Badshabhog, V 17 16 = Modhumala to study on growth, yield and grain quality of some aromatic rice varieties. The experiment was laid out in a Randomized complete Block Design (RCBD) with three replications. Regarding growth and yield parameters, the highest number of total tillers hill -1 (23.33), leaf area index (5.38), flag leaf length (30.12 cm), number of effective tillers hill -1 (21.67), panicle length (32.00 cm), number of grains panicle

(230.3), number of filled grains panicle -1 (212.7), grain yield (3.42 t ha ), straw yield (6.19 t ha -1 ) and number of biological yield (9.610 t ha -1 -1 ) were found in the variety, V

(BRRI dhan37) but the highest 1000 grains weight (22.80 g) and the highest harvest index (37.48%) were found in V 17 (Modhumala) and V (BRRI dhan34), respectively. The lowest number of effective tillers hill -1 5 (13.33), panicle length (24.67 cm), grain yield (1.583 t ha -1 ), straw yield (4.083 t ha -1 ), biological yield (5.667 t ha -1 ) and harvest index (27.89%) were found in the variety, V (Modhumala). Regarding quality parameters, the highest hulling percentage (82.86%), milling degree (90.32%) and broken rice percentage (6.257%) found in the variety V 6 17 (BRRI dhan37) but the highest rice breadth (2.757 mm), boiled rice breadth (3.133 mm), protein percentage (10.03%) were found in the variety, V (Modhumala) whereas, the highest (1.727 mm) elongation ratio, rice length (6.217 mm), boiled rice length (8.600 mm), moisture percentage (13.67%), grain length (8.333 mm), milling recovery (72.29%) were found in the variety V 17 2 (Chiniatab 2), V

(Kataribhog 1), V 7 (BRRI dhan34), V 8 (BR5/dulabhog), V 9 (Khoisanne) and V (Badshabhog), respectively compared to all other varieties. From the above findings, it can be concluded that the rice variety V (BRRI dhan37) showed the best performance in terms of yield and on the basis of grain quality parameters such as protein and amylose content, V 17 6 (Modhumala) showed best performance. So, variety V (BRRI dhan37) can be considered as best for yield purpose and V 17 6 (Modhumala) for high protein and less amount of amylose among the studied varieties of aromatic rice.