Effect of Panicle Initiation Stage, Submergence on the Morphological Behavior, Number of filled and unfilled grain plant-1 of Different Rice Varieties

Abstract

A pot experiment was carried out at the research farm of Sher-e-Bangla Agricultural University, Dhaka with four replications following randomized complete block design during Aman season from July 2018 to January 2019 on medium high land of Sher-e-Bangla Agricultural University to find out the effect of panicle initiation stage submergence on plants morphological and physiological characters. The experiment comprised of two factors as follows: factor A: variety (four tolerant varieties, V1- FR 13A, V3- BRRI dhan51, V4- BRRI dhan79, V5- Binadhan-11 and one susceptible V2- BR5), factor B: four submergence treatments (S0- control, S1- 4 days submergence, S2- 7 days submergence, S3- 10 days submergence). Study reflected that all the parameters were significantly influenced by combined effect of variety and submergence except plant height at 20, 40 DAT and at harvest.