Genetic inheritance of fruit traits and seed coat colour in bitter gourd (Momordica charantia)

P GANGADHARA RAO; TUSAR KANTI BEHERA; ANILABH DAS MUNSHI; GOGRAJ SINGH JAT; BOOPALAKRISHNAN G

doi:10.56093/ijas.v92i3.122686

Authors

P GANGADHARA RAO ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
TUSAR KANTI BEHERA ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
ANILABH DAS MUNSHI ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
GOGRAJ SINGH JAT ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India
BOOPALAKRISHNAN G ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v92i3.122686

Keywords:

Bitter gourd, Fruit curviness, Genetic inheritance, Momordica charantia, Ridges, Seed coat colour, Tubercles

Abstract

The present experiment on genetic inheritance of fruit traits (ridgeness, tubercles and curviness) and seed coat colour of bitter gourd (Momordica charantia L.) was carried out at experimental farm of Division of Vegetable Science, ICAR-IARI, New Delhi in 2014â€“16. The study provides genetic information for development of new varieties and hybrids as per the consumer preference. The classical Chi-square (Ï‡2) test was used to estimate the inheritance pattern of qualitative traits using six generations (P1, P2, F1, F2, BC1P1 and BC1P2; F3 generation as F2 for seed coat colour). Inheritance of fruit traits like continuous ridges (Cr: in DBGS-54 Ã— DBGS-2 and DBSS-54 Ã— Pusa Vishesh; Ï‡2 = 0.09; P = 0.76 and Ï‡2 = 0.50; P = 0.48, respectively), tubercles (Tb: DBGS-54 Ã— DBGS-2 and DBSS-54 Ã— Pusa Vishesh; Ï‡2 = 0.50; P = 0.48and Ï‡2 = 0.01; P = 0.92, respectively), fruit curviness (Cf: DBGS-54 Ã— DBGS-2; Ï‡2 = 0.02; P = 0.89) and black seed coat colour (Bs: Pusa Aushadhi Ã— DBGS-54 and DBGS-54 Ã— DBGS-2; Ï‡2 = 0.73; P = 0.39 and Ï‡2 = 0.02; P = 0.89, respectively) were found to be controlled by single dominant gene. Simple inheritance of these fruit traits will enable the bitter gourd breeder to incorporate these traits in hybrids. The black seed coat colour will act as a morphological marker for hybrid seed purity test too.

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