Vol. 12, Issue 8 (2023)

Author(s):
Swati Mandal and Sonali Kar

Abstract:
The present investigation was carried out with the set of seven varieties of Indian mustard and twenty-one F1s obtained through partial diallel crossing, with the objective to explore hybrid vigour and find out best heterotic crosses. The seven parents and twenty- one F1s and two checks were grown in two line for the eleven quantitative characters. The analysis of variance showed highly significant difference among the genotypes (parents and crosses) for all the characters. NPJ – 112, DRMRIJ-12-40, DRMRIJ-31 and LES-39, DRMRIJ-12-48 parents have significant general combining ability, while TN-3 X NPJ- 112, DRMRIJ-31 X TN-3, DRMRMIB-35 X DRMRIJ-12-48 and DRMRIJ-12-48 X LES-39 have strong hybrid SCA results. The significant positive relative heterosis was recorded in TN-3 X NPJ-112 (13.75. The significant positive heterobeltiosis was recorded in DRMRIJ-31 X TN-3 (9.24). The highest significant positive standard heterosis over check parent (Varuna) was recorded in TN-3 X NPJ-112 (17.07), with respect to seed yield per plant.