Estimation of Genetic Variability in Pea (Pisum Sativum L.)

Abstract

Genetic variability estimation was conducted in twelve genotypes of peas during growing season 2011-12. Analysis of variance was highly significant for all characters studied except plant height present high scope for selection. The highest genotypic and phenotypic co-efficient of variation were recorded for pod per plant (31.62, 31.99) followed by seed yield per plant (22.87, 23.65), cluster per plant (18.81, 20.21) and lowest was noted for days to maturity (1.88, 2.15). High heritability with high genetic advance as percent of means was recorded for pod per plant (0.98, 64.37%) followed by seed yield (0.94, 45.56%). The lowest was observed for plant height (0.35, 13.80%). The study indicates that emphasis should be given to these characters for yield improvement.

Study on Genetic Variability, Heritability and Genetic Advance in Garden Pea (Pisum sativum var. hortense L.)

“…Similar findings were also reported by Afreen et al, (2017), Katoch et al, (2016), Jaiswal et al, (2015), Kumar et al, (2015), Ahmad et al, (2014), Asfakun et al, (2013), Kumar et al, (2013) and Pal and Singh (2013). The moderate amount of GCV were recorded for Days to 50% flowering (18.55%), Days to pod setting (18.12%), fibre content (13.33%), pod width (13.28%), number of seeds per pod (12.90%), pod length (12.08%), days to first pod picking (12.06%), number of pods per cluster(9.50%), shelling per cent(9.30%) and seed yield per plant (8.36%).…”

“…Similar findings were also reported by Katoch et al, (2016), Jaiswal et al, (2015), Kumar et al, (2015), Ahmad et al, (2014) Asfakun et al, (2013), Kumar et al, (2013) and Pal and Singh (2013).…”

Estimation of the Different Parameters of Variation through Biometrical Approach in Pea (Pisum sativum L.)

“…It is also observed that the low range between PCV and GCV so it reveals that these traits have low sensitivity to environmental effects and it is reducible. Similar finding were also reported by Katoch et al, (2016), Siddika et al, (2013), Kumar et al, (2013) and Ahmad et al, (2014).…”

“…The low amount of PCV were recorded for 100-seed weight (9.27%) followed by pod length (8.96%), seeds per pod(6.42%), plant height (6.10%), yield per plant(4.94%), pod per plant (4.44%), days to maturity (4.03%) and days to 75% flowering. Similar finding were also reported by Katoch et al, (2016), Siddika et al, (2013), Kumar et al, (2013) and Ahmad et al, (2014). GCV measures the amount of variation present in a particular character but it doesn't provide an idea about the proportion of heritable variation present in the total variation therefore, heritability estimates were calculated in the present study.…”

“…Out of ten characters nine characters observed for high heritability viz., yield per plant (94.78%), days to maturity (92.58%), plant height (85.69%), 100-seed weight (84.75%), pod density (83.25%), pod length (80.61%), pods per plant (77.63%), seeds per pod (76.64%), and days to 75% flowering (66.51%). Similar results were noticed by Afreen et al, (2017), Georgieva et al, (2016), Jaiswal et al, (2015); Kumar et al, (2015); Ahmad et al, (2014); Habtamu and Million (2013); Kumar et al, (2015); and Kumarai et al, (2008). Low heritability was recorded for primary branches per plant (37.68%).…”