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标题：A Study on Comparative Performances of Hybrid and Convential Rice Varieties in Aman Season
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作者：MA Awal ; AKMA Habib ; MA Hossain 等
期刊名称：Journal of Agriculture & Rural Development
印刷版ISSN：1810-1860
电子版ISSN：1810-1860
出版年度：2007
卷号：5
期号：1-2
页码：13-16
语种：English
出版社：School of Agriculture and Rural Development, Bangladesh Open University
摘要：Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} An experiment was done at farmer's field in Sherpur district to evaluate the comparative performance of two hybrid rice varieties, Sonarbangla-2 and Sonarbangla-3 with three conventional modern commercial varieties BRRIdhan32, BRRIdhan33 and BR11 in Transplanted aman season of 2003. It is revealed that the hybrids and conventional rice varieties differed significantly among themselves with respect to different parameters under study. The highest grain yield (6.20t/ha) was recorded from the hybrid Sonarbangla-3 followed BRRIdhan-32 (5.70 t/ha) and the lowest in BRRIdhan-33 (4.17t/ha) and these differences were statistically significant. However, BRRIdhan-32 obtained significantly higher yield compared to the hybrid Sonarbangla-2. Further, it produced the maximum amount of straw (8.6 t/ha), which varied significantly with all others. Minimum days to 1 st flowering (92) and maturity (108) were noticed in Sonarbangla-2 followed by Sonarbangla-3 (95 and 115), respectively. Both the hybrid had heavier grain weight (28.33-31.00g) than those of the conventional varieties (22-25g). It is noted that the hybrids maintained distinct statistical edge over the conventional varieties with regard to most of the parameters. Thus, the hybrid Sonarbangla-3 was found superior to conventional varieties for transplanting in the aman season in Bangladesh. Key words: Sonarbangla-2, Sonarbangla-3, conventional varieties, cropping pattern. DOI = 10.3329/jard.v5i1.1451 J Agric Rural Dev 5 (1&2), 13-16, June 2007
关键词：Sonarbangla-2, Sonarbangla-3, conventional varieties, cropping pattern