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Pathak, Pallavi
- Association of Characters and Path of Action in Table Pea (Pisum sativum L.)
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1 S.S.J. Campus, Kumaun University, Almora (Uttarakhand), IN
1 S.S.J. Campus, Kumaun University, Almora (Uttarakhand), IN
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International Journal of Plant Sciences, Vol 13, No 1 (2018), Pagination: 131-134Abstract
From the data generated from ten varieties/strains namely, AP-2, AP-4, AP-5, AP-1, KS-185, KS-218, KS-601, KS-701, KS-801 and AP-3 and their all possible combinations excluding reciprocals in table pea which were evaluated during 2015-16. The correlation co-efficient analysis revealed that green pod yield per plant showed positive and significant correlations with pod length (0.542), pod width (0.778), number of seeds per pod (0.615), number of pods per plant (0.404), seed shell ratio (0.331) and protein content (0.404). The positive and high direct effect of number of pods per plant (0.398) followed by pod length (0.252), seed shell ratio (0.251) and plant height (0.138) indicated their importance for selection base on it. Seeds per pod and protein content had positive but low direct effect on green pod yield. The major indirect positive effect of seeds per pod via pod length, pod width via number of first fruiting node, number of pods per plant via pod width and no. of seeds per pod, pod width via days to 50% flowering and number of fertile branches per plant via number of first fruiting node had positive and high indirect effects which indicated that effective selection can made indirectly based on these characters.Keywords
Table Pea, Pisum sativum, Selection Parameters, Correlation, Path Analysis, Pod Yield.
References
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- Genetics of Green Pod Yield in Table Pea (Pisum sativum L. Hort.)
Abstract Views :232 |
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Authors
Affiliations
1 S.S.J. Campus, Kumaun University, Almora (Uttarakhand), IN
1 S.S.J. Campus, Kumaun University, Almora (Uttarakhand), IN
Source
International Journal of Plant Sciences, Vol 13, No 1 (2018), Pagination: 196-200Abstract
An experiment consisting 45 F1s derived from ten pea varieties/strains i.e. AP-2, AP-4, AP-5, AP-1, KS-185, KS-218, KS-601, KS-701, KS-801 and AP-3, during the rabi season of 2014-15were raised in crossing block and all possible combination excluding reciprocals were made to obtained 45 crosses. The crosses were evaluated at Vegetable Research Farm, Kalyanpur, Kanpur during Rabi of 2015-16. The analysis of variance for combining ability showed significant differences both for GCA and SCA variances. The estimated values of σ2 GCA were higher than σ2 SCA for number of fertile branches per plant, pod width, number of pods per plant, seed-shell ratio and protein content indicated the more contribution of additive genetic variances for controlling these characters. Higher estimates of σ2 SCA than σ2 GCA for green pod yield, pod length and number of seeds per pod indicated the role of non additive genes for controlling these traits. Parents AP-1, AP-3, AP-4, KS-601 and KS-701 were found good general combiners for majority of the characters under study including green pod yield per plant. Cross combinations namely; AP2 x AP3, AP2 x KS801, KS218 x KS601, AP4 x AP1, KS801 x AP3, AP4 x KS701, KS185 x KS218, KS185 x KS601, KS701 x KS801and AP4 x KS601 were the top ten crosses which showed higher mean values and significant SCA effects for green pod yield and some other characters under study. Significant contribution of non additive genes were observed for controlling the green pod yield, pod length and number of seeds per pod while additive genetic effects were found effective for controlling the expression of pod width, number of pod per plant, seed-shell ratio and protein content.Keywords
Gene Action, Green Pod Yield, Combining Ability, GCA Effect, SCA Effect, Table Pea Pisum sativum.References
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