Genetic Variability, Heritability and Genetic Advance in Garden Pea (Pisum sativum L. var. hortense): A Randomized Cross-sectional Study
Harishankar Meena
Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, (UP) - 226025, India.
Rubee Lata *
Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, (UP) - 226025, India.
Hareesh Kumar Maurya
Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, (UP) - 226025, India.
M.L. Meena
Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, (UP) - 226025, India.
*Author to whom correspondence should be addressed.
Abstract
The field experiment was conducted at Horticulture Research Farm, Department of Horticulture, Babasaheb Bhimrao Ambedkar University, Lucknow during the Rabi season 2023-24. In this, twenty-five genotypes including check cultivars were evaluated to estimate the genetic variability, heritability and genetic advance for different characters. The experiment was laid out in Randomized Block Design (RBD) with three replications. The estimates of phenotypic coefficients of variation (PCV) were higher than genotypic coefficients of variation (GCV) for all the characters. High magnitude of phenotypic variation were observed in case of number of pods per plant (48.26) followed by seed yield per plant (39.22), green pod yield per plant (39.20), plant height at the time of harvesting (38.30), weight of per pod (31.44), number of pods per cluster (24.05), number of primary branches per plant (23.28) and node to first flower appearance (21.24). High heritability coupled with high genetic advance in per cent of mean were observed for number of pods per plant (97.00) followed by green pod yield per plant (79.59), seed yield per plant (79.14), plant height (76.66), weight of per pod (62.53), number of pods per cluster (45.78) and number of primary branches per plant (42.81) indicating the scope of high selection response. Therefore, these characters exhibited high heritability coupled with genetic advance thus, showing some scope for improvement through selection.
Keywords: Pea, GCV, PCV, phenotype heritability, genotypes and variability