Development of High Yielding Aromatic Rice Variety BRRI dhan70 for Wet Season of Bangladesh

• 作者: Al Amin Md. Abdul Kader Ratna Rani Majumder Tamal Lata Aditya Tapas Kumer Hore
• 来源期刊: 生命科学:英文版(ISSN1934-7391)
• 学科: 生物学
• 关键词: Rice extra-long-slender AROMATIC exportable BRRI dhan70 WET season.
• 年，卷（期）: 2018,（5）
• 页码范围: 203-213
• 页数: 11页
• 分类号: Q

摘要

BRRI dhan70 is a new aromatic, high yielding and extra-long slender grain containing transplanted Aman rice variety which is an improvement over existing premium quality rice BRRI dhan37. BRRI dhan70 has pleasingly passed in the proposed variety trial conducted in the farmers’ field. As a result National Seed Board (NSB) approved this variety for commercial cultivation in the wet season (T. Aman) of Bangladesh in 2015. The important feature of BRRI dhan70 is the straw colored extra-long slender, higher elongation ability and aroma of the cooked rice. The growth duration of BRRI dhan70 is 130 days which is 10-15 days earlier growth duration than BRRI dhan37. Thousand grain weight of the variety is 20 gm and it has colored grain tip and pointed awn. The rice has 21.7% amylose content with 9.5% protein content. The special character of the variety is lodging tolerance. It has long, erect deep green flag leaf. BRRI dhan70 can produce 4.8-5.0 t/ha yield with proper management which is approximately 1.0-1.35 t/ha higher yield than BRRI dhan37. The exportable aromatic rice BRRI dhan70 is an excellent variety for cultivating in the wet (T. Aman) season and farmers can be benefited by the cultivation of BRRI dhan70.