摘要 : Investigations were carried out at the Agricultural Research Farm of the Arunachal University of Studies, Namsai, Arunachal Pradesh, during Kharif season 2018-19 to identify the promising rice variety suited to the agro climatic c... 展开 Investigations were carried out at the Agricultural Research Farm of the Arunachal University of Studies, Namsai, Arunachal Pradesh, during Kharif season 2018-19 to identify the promising rice variety suited to the agro climatic conditions of Namsai.Two improved rice varieties (MTU-1010, MTU-7029), two local cultivars (Sali, KhamtiLahi) and an introduced rice variety (Thailand Lahi) were evaluated in randomized block design with five replications. The varieties differed significandy for growth and yield parameters. The tallest variety was Thailand Lahi (164.08 cm) followed by KhamtiLahi (147.34 cm), whereas the maximum number of productive tillers was observed in MTU-7029 (13.84) and MTU-1010 (13.10) followed by Thailand Lahi (11.84). Thailand Lahitook minimum (7.2) days for panicle emergence whereas, Sali took maximum (14.4) days. The varieties MTU-7029 and MTU-1010 had the shortest crop duration(126 days). Khamti Lahi had the longest (155 days) duration. The highest number of grains per paniclewas observed in Khamti Lahi (232.4) followed by Thailand Lahi (209.6) and the lowest was found in MTU-1010 (121.4). The panicle length was the highest in Thailand Lahi (25.8 cm) and Sali (25.4 cm). Whereas, MTU-1010 had the lowest panicle length (22.1 cm). Average length of grains was maximum in Thailand Lahi (0.96 mm) and minimum in Sali (0.68 mm). The highest 1000 grain weight (29.08 g) was observed in variety Thailand Lahi and the lowest was found in KhamtiLahi (21.60 g). The maximum yield per plotwas obtained from the variety Thailand Lahi (4.72 t/ha). This was followed by the local varieties Sali and KhamtiLahi (3.86 and 3.38 t/ ha), which were on par with each other. 收起