Vol. 12, Issue 12 (2023)

Author(s):
Rajesh Chintey, Ratna Kinkor Goswami, Bhagawan Bharali, Ranjan Das, Ramani Kanta Thakuria, Raju Prasad Paswan and Pankaj Kumar Debchoudhury

Abstract:
A field experiment was carried out at the Instructional-cum-Research (ICR) Farm, Assam Agricultural University, Jorhat-13, Assam during rabi seasons of 2021-22 and 2022-23 with the aim to study the physiological characters, yield attributes and yield in a set of 22 diverse rapeseed genotypes. The experiment was laid out in randomized block design with three replications comprising of 22 different genotypes of rapeseed including TS-38 (Check), TS-46, TS-67, TS-36, TS-29, TS-75-1, TS-75-1TL, TS-75-2ME, TS-75-2-MM, TS-76-1, TS-76-2, JT-90-1, Panchali, Bhawani, CG Toria-4, TKM-20-1, TKM-20-2, JT-14-5, PT-2018-09, CG Toria-3, Tapeshwari and PT-303. The crops were grown following the recommended package of practice. All the physiological parameters and yield and yield attributes were taken following the standard methodologies. The results (pooled data of two years) of the study indicated a significant variation of physiological parameters viz. stomatal frequency, stomatal index, RLWC and chlorophyll content, yield attributes and yield among the genotypes. The genotypes TS-75-2ME and TS-38 exhibited more RLWC, total leaf chlorophyll, more yield and showed superiority in terms of seeds per silique, total number of seed per plant, seed yield per plant and harvest index.