STUDY ON THE LEAF TRAITS OF AMAN RICE VARIETIES IN VARIOUS SOlL MOISTURE LEVELS

Abstract

An cxperiment was carried out at Sher-c-Bangla Agricultural University, Dhaka. Bangladesh during the period from July to November 2014 to study the performance of four transplanted aman rice varieties (BRRI dhan56. BRRI dhan57. Binadhnn-? & BRRJ dlwn49) under three different soil moisture levels> (100% field capacity moisture content or control, 70% of the control moisture and -l0% of the control moisture). 111e experiment was carried out in a polythcnc shed controlling the intrusion of rainfall. 111C results indicated that leaf area. specific leaf area and relative water content were found to be the highest at 100~o Fe conduron and the lowest at 40% FC condition: but the reduction was comparauvely lower III BRRJ dhun56 and BRRI dban-l9. 0 leaf rolling was recorded ill 100·0 field capacity moisture level and the highest leaf wiling was recorded at -l00 0 field capacity moisture level. 70°'0 field capacity moisture did not give an) remarkable effect on BRRI dhan56 and BRRI dhan49. 111CS!: varieties could be cultivated In drought-prone areas of Bangladesh providing 70% field capacity moisture.