Punam HoroJUHI RANI2023-11-162023-11-162023https://krishikosh.egranth.ac.in/handle/1/5810201294Garden pea (Pisum sativum L.) is the famous plant in which G.J. Mendel worked out Mendel’s Law and Genetic Principles, is a noble and aristocratic vegetable. It is consumed as fresh vegetable as well as dry seed throughout the world due to its high nutritive value. The present investigation entitled “Estimation of genetic parameters of vegetable pea (Pisum sativum L.) genotypes for yield and yield attributing characters”, was carried out at the Vegetable Research Farm, Department of Horticulture, Birsa Agricultural University, Kanke, Ranchi during Rabi 2021-22 in the experimental design of RBD with three replications, using 21 genotypes of vegetable peas including two checks viz., Arkel and US-10. Observations were recorded under growth, yield attributing characters and qualitative parameters. In addition to this GCV, PCV, Heritability, Genetic advance, Correlation, Direct and indirect effects of different traits on yield were also estimated. The mean performance of the genotypes revealed that the significantly highest yield was recorded in Arkel Mutant-1 (158.92 q/ha) followed by Chianki-VP-1(138.30 q/ha), Arkel Mutant-2 (136.86 q/ha), CS-8 (130.64 q/ha).The genotype Arkel Mutant-1 also showed significantly highest desirable values on plant height (59.08 cm), number of branches per plant (12.13), green pod length (10.90 cm), number of seed per pod (10.19), ten green pod weight (50.11 g), shelling per centage (42.66%), plant population at last harvest (353/360), survival per centage (98.27%), green pod yield per plant (69.46 g), green pod yield per plot (24.52 kg), green pod yield per hectare (158.92 q/ha) and observed earliest in days to 50% flowering (36.88 DAS) and days to 1st picking (47.88 DAS). Genotypes were found significant for all the characters. Phenotypic variance was higher than genotypic variance for all the traits and similar trend was followed for PCV and GCV. High phenotypic variance (19.10) and genotypic variance (18.10) was found for green pod yield per hectare and green pod yield per plot. High value of heritability in broad sense was estimated for green pod yield per hectare and green pod yield per plant with the values of 74.70 and 69.70, respectively. High genetic advance as percent of mean was estimated for green pod yield per hectare and green pod yield per plot with the values of (35.36) and (32.59) respectively, which suggest that selection of these trait may be effective as heritability is most likely due to additive gene effects. Correlation study revealed that positive genotypic significant correlation was observed for green pod yield per plot and TSS % with green pod yield per hectare. Positive phenotypic correlation was observed with plant population at last harvest, survival %, 100 seed weight and number of green pods per plant, number of seed per pod, shelling % and green pod yield per plot showed positive direct effect with green pod yield per hectare. On the basis of above findings, it is concluded that Arkel Mutant-1 was found to be the most suitable for the cultivation in main season rabi crop with at least one more year trial before its final recommendation in Ranchi condition, as single season trail is not sufficient for the recommendation in large area cultivation of this crop. This genotype may also be used as a parent for further breeding programme. Hence, this genotype may be recommended for high green pod yield in Ranchi condition.EnglishThesis