PERFORMANCE OF AMAN RICE AS AFFECTED BY STORAGE DURATIONS OF UPROOTED RICE SEEDLINGS AT DIFFERENT AGES

Author (s):  M. J. Jalal1*, M. J. Ullah2, H. M. M. T. Hossain2 and A. Rahman3
* Corresponding author, E-mail: jannat_jalal@yahoo.com

 Abstract

The experiment was conducted at the Agronomy research field, Sher-e-Bangla Agricultural University, Dhaka from June, 2008 to December, 2008 to study the yield performance of aman rice with storage durations of uprooted rice seedlings at different ages. The experiment comprised three factors viz. A. Variety (2): BRRI dhan31 and BRRI dhan34, B. Seedling age (2): 30 days old seedlings and 40 days old seedlings and C. Storage durations (4): 0, 2, 4 and 6 days after uprooting. The experiment was laid out in Randomized Complete Block Design (Factorial) with three replications. Results indicated that BRRI dhan31 produced significantly higher number of effective tillers hill-1, weight of 1000-grains, grain yield (4.41 t ha-1), straw yield and harvest index. The results also revealed that 30 days old seedlings showed better performance than 40 days old ones in respect of the longer panicle (26.64 cm), higher number of total grains panicle-1 (160.26), number of filled grains panicle-1 (134.84), weight of 1000-grain (20.22 g) and grain yield (4.38 t ha-1). Among the storage durations of uprooted rice seedlings, 0 days storage durations showed best performance in respect of total grains panicle-1 (158.86), filled grains panicle-1 (138.54), 1000-grain weight (20.62 g), grain yield (3.98 t ha-1), straw yield (6.68 t ha-1) and harvest index (37.33%). BRRI dhan31 with 30 days old seedlings stored for up to 4 days and 40 days old seedlings stored for 2 days statistically showed no yield loss.

Key words: Aman rice, Storage duration and Seedling age


J. Expt. Biosci. 3(2): July 2012


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