YIELD AND QUALITY ANALYSIS OF SOME ADVANCED LINES OF BASMATI RICE

Abstract

The experiment was conducted at the experimental Farm, Sher-e-I3angla Agricultural University. Sher-e-I3angla Nagar. Dhaka, Bangladesh during December 2008 to July 2009. Six advanced lines of Basmati rice SI. S2,S5, 42(i). 42(u), 44(1) and BRRI dhan29 as check were evaluated. Highly significant variations present among the advanced lines and check for plant height. days to 50% flowering, days to maturity, number of effective tillers.' plant, number of ineffective tillers/plant, number of total tillers/plant, panicle length, number of filled spikelets/panicle, number of unfilled spikelets/panicle, total spikelets/panicle, 1000- grain weight etc. All the tested lines were superior to best yielding check in mean performance with respect to number of effective tillers per plant. panicle length and 1000- grain weight. The advanced line 42 (ii) had highest plant height, panicle length but earliest days to maturity and 42 (i) had highest number of effective tillers. Among the lines 42 (i) gave highest yield (7.56 tlha) and 42 (ii) gave the lowest yield (4.28 tlha). However the check BRRI Dhan 29 exhibited better performance in respect to number of filled spikelets per plant, yield per plant and yield (tiha). All the lines showed significant positive correlation between plant height and panicle length, number of effective tillers per plant with yield, number of filled spikelets/ panicle with yield. Highly significant variation was observed among the lines for hulling percentage, milling outturn, head rice recovery per cent grain length, grain breadth, length/breadth ratio of grain, length before cooking, length after cooking, alkali spreading value, water absorption, elongation ratio and cooking time. Most of the lines showed lower hilling percent, milling percent and head rice recovery per cent than the check BRRI Dhan 29. But, the 52 advanced line showed superior performance in respect of hilling percent, milling percent and head rice recovery (HRR) per cent than the check BRRI Dhan 29. All lines had long slender grains. Superior cooking performance over BRRI Dhan 29 was observed in all the lines for length of cooked rice elongation, kernel elongation ratio and one line for volume expansion. All the lines were identified having acceptable grain quality with translucent endosperm appearance but overall performance in relation to cooking and eating point of view S2 advanced line performed better. Correlation coefficient analysis showed significant positive correlation between hulling and milling percent, HLRR per cent and kernel breadth of milled rice, kernel breadth of milled rice and [JB ratio of cooked rice.