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Inheritance and stability studies of multi–flowering trait in vegetable pea (Pisum sativum L.), and its contribution in yield improvement

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Title Inheritance and stability studies of multi–flowering trait in vegetable pea (Pisum sativum L.), and its contribution in yield improvement
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Creator Devi J, Dubey R K, Mishra G P. Sagar V , Verma R K Singh P M, Singh J.
 
Subject Inheritance, stability, multi-flowering, pea
 
Description Not Available
Multi–flowering (MF) is considered a rare trait in vegetable pea (Pisum sativum L.), and detailed studies about its
inheritance in different background or stability across season and location is not yet thoroughly investigated. In
this study, nine cross combinations were studied, involving five parental genotypes forming 01 to 05 flowers per
peduncle (FPP). The F2 progenies of two cross combinations viz., [VRP–386 (2FPP) × VRP–500 (3FPP)] and
[VRP–386 (2FPP) × VRPM–501 (3FPP)] showed 13:3 (2FPP:MF) segregation or inhibitory gene action regulating
the MF trait. Whereas, in other three cross combinations viz., [VRPSel–17(1FPP) × VRPM–501(3FPP)],
[VRPSel–17(1FPP) × VRPM–901–5(5FPP)] and [VRP–500(3FPP) × VRPSel–17(1FPP)], the F2 plants segregated
in 12:3:1 (2FPP:1FPP:MF) ratio, showing presence of dominant epistasis. Further, the frequency of 3FPP varied
from 3.89% to 19.76% in different parental genotypes. When studied together, the inheritance of flower colour
and number of FPP showed an independent assortment in F2 generation. The stability analysis was performed to
identify the most stable MF genotype and AMMI analysis of variance for pod yield showed significant environment,
genotype, and G × E interactions (p = 0.0001). The higher Principal Component (PC1 and PC2) scores
of the MF genotype VRPM–901–5 (G8) showed its better yield potential (mean yield 176.22 q/ha) and stability.
Further, the MF genotype VRPM–901–5 (G8) yielded nearly 3 - times and 1.5 - times more than the 1FPP
[VRPSel–17 (G1)] and the 2FPP cultivars [PC - 531 (G2) and VL - 8 (G3)], respectively. Thus, these MF genotypes
are the potential parents to increase the number of FPP, and also to boost the yield of vegetable pea.
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Date 2021-07-13T04:21:45Z
2021-07-13T04:21:45Z
2021-05-08
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/47748
 
Language English
 
Relation Not Available;
 
Publisher Not Available