Vol. 11, Issue 11 (2022)

Author(s):
Arpita P Mate, Shanti R Patil, Mahesh G Gujar, Vandana S Madke, Bijjam Chandra Reddy and Vandana B Kalamkar

Abstract:
The present study was carried out at experimental farm of Agricultural Botany Section, College of Agriculture, Nagpur. An experiment on induction of mutation in lathyrus by gamma rays was performed by using treated seeds of lathyrus cv. NLK-73 with 250, 300 and 350 Gy doses of gamma rays in non-replicated trial along with control. The treated material along with untreated control were sown in M₁ generation and the seeds collected from individual plant of M₁ generation were used to raise M₂ generation during rabi 2020 and 2021 respectively. Observations on morphological traits and biometrical traits were recorded on each treatment and data were subjected to statistical analysis. Germination and mortality percentage were recorded in M₁ and M₂ generation and it was found that there was reduction in germination percentage and increase in mortality as compared to control. In M₂ generation number of branches plant^-1, number of pods plant^-1, 100 seed weight and seed yield plant^-1 increased in all the three treatments of gamma radiation i.e., 250, 300 and 350 Gy as compared to control. Days to first flower, days to maturity and plant height increased in some treatments and decreased in some treatments.