Vol. 10, Issue 12 (2021)

Author(s):
J Mishra and SK Swain

Abstract:
An investigation was undertaken during kharif 2017 at the Central Research Station and Department of Seed Science and Technology, OUAT, Bhubaneswar to study the impact of maleic hydrazide (MH) induced dormancy on plant growth and yield attributes of groundnut seeds. The experimental material comprised of three groundnut varieties namely, TG 37 A, TG 38 B and Devi and six treatments namely, MH @ 0, 250, 500, 750, 1000 and 1250 ppm applied as foliar spray at 70 and 90 DAS. Appropriate agronomic practices were followed for raising the seed crops. Observations were recorded on 10 plant growth parameters and yield attributes namely, plant height, number of branches, mature and immature pods per plant, 100- pod and seed weight, number of seeds per pod, shelling percentage, pod yield per plant and per hectare. The results indicated presence of significant variations among the varieties for plant height, number of seeds per pod, 100 seed weight and pod yield per plant and among the treatments, for pod weight, number of seeds per pod, 100 seed weight, shelling percentage and pod yield. Among the treatments, application of MH @ 1250 ppm recorded the highest pod weight (2.618 g), 100-seed weight (189.2 g), shelling percentage (72.2%), per plant pod yield (78.22 g) and per hectare pod yield (19.58 q).