Vol. 11, Special Issue 9 (2022)

Author(s):
Nikita Laishram, Dr. Rajen Baruah, Dr. Amrita Phukan, Antara Paul and Deepika Charingia

Abstract:
A total of 77 cyanobacterial cultures were isolated from 55 numbers of soil samples collected from Jorhat and Golaghat districts of Assam using BGIIo specific liquid media from which 30 cultures thus showed pure colonies. 10 efficient cultures based on enzyme and PGP activities were selected for pot experiment to study its efficiency in growth and yield attributing characters in rice crop variety Luit (Ahu). Results indicated that all the inoculated treatments showed better growth and yield as compared to the uninoculated control which was evident from the data obtained on number of tillers, number of panicles, length of panicles, grain yield (g/ hill), straw yield (g) and dry weight of root (g). Grain yield and straw yield of BGA-41 ranged as 27.67 g/ pot and 12.64 g/ pot respectively. Therefore BGA-41 which was identified as Anabaena constricta by molecular characterization (using CTAB method) was regarded superior to other cyanobacterial cultures which was at par with the recommended fertilizer dose treatment.