Heterosis Studies in Bitter Gourd for Yield and Related Characters

“…Indeed, the expression of heterosis by hybrids for a given trait indicates their potential to produce superior cultivars through the selection of transgressive segregants in segregating populations [32, 33]. Heterosis breeding is a potential tool to improve the quantity, quality and productivity of bitter gourd [34], which cannot be done by traditional methods. Analysis of variance of the gca and sca revealed significant general and specific combining ability effects for the evaluated traits.…”

Section: Discussionmentioning

confidence: 99%

Combining ability analysis ofCucurbita moschataD. in Cote d’Ivoire and classification of promising lines based on their gca effects

Kouago,

Seka,

Brou

et al. 2024

Preprint

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Twelve hybrids and their four parental lines were evaluated for their general performances, combining abilities, potency ratio and heterosis effects. Taller plants and smaller fruits characterized the parental lineLong, while theSoubreparent showed favorable fruit and seed traits but with a small number of seeds. The lineZouan-Hexhibited performances that are close toSoubrebut with a smaller number of fruits per plant, higher number of seeds per fruit and the weight of the fruit is one-half that of theSoubreline. TheOvalparent is characterized by a high number of seeds per fruit, smaller fruits and shorter plants. Significant effects of heterosis were observed in different hybrids for different characters. And the computed values of potency ratio indicated that gene(s) expressions were characterized by partial dominance in many cases and super dominance in some other cases. The variance of the effect of the general combining ability of the female parent was highly significant for all the evaluated traits. The variance of the effect of the general combining ability for the male parent was significant for some characters. The variance due to the effect of the specific combining ability was also highly significant for all the traits evaluated. It showed that the effects of additive genes and non-additive genes contributed to the expressions of the characters. However, the general predictive ratio was closer to 1.00 for all the fruit-related traits implying the strong effects of additive genes in the determination of the fruit-related characters. A classification of the parental lines based on the effects of their general combining ability grouped theSoubrelines as promising contributors to fruit yield. The parental linesLongandOvalformed another group likely on the basis of the small size of their fruits, the small pulps, the smaller number of fruits per plant and the high number of seeds per fruit.Longwould be a candidate parent for the development of cultivars with longer vegetative growth. The parental lineZouan-Hformed the third group and it was mostly characterized by its advantageous seed traits.

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“…A lot of variabilities was noticed for vegetative and fruit figures in bitter gourd. Due to the presence of large variability, monoecious characteristics, convenient and conspicuous flowers along with a substantial selection of seeds per fruit bitter gourd work as a prospective crop for the exploitation of heterosis (Thangamani and Pugalendhi, 2013). As bitter gourd does not show or very negligible inbreeding depression, the homozygous inbred lines developed after 6 to 7 generation of continuous selfing.…”

Section: Heterosis Breedingmentioning

confidence: 99%

Visiting Bitter Gourd (Momordica charantia) from a Breeding Perspective: A Review

Kesh

Kaushik

2020

Plant Breed. Biotech.

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Bitter gourd is an important vegetable of the family Cucurbitaceae, cultivated mainly in humid and subtropical Asia. Bitter gourd is vegetable with immense health benefits due to the presence of medicinal compounds such as charatin, vicine, and polypeptide-p, which play an essential role in lessening the blood glucose levels. Moreover, bitter gourd fruits are particularly rich in vitamin C, minerals, and carotenes. Here, an effort has been made to critically evaluate the extent of achievements during the enhancement and enactment of bitter gourd breeding programs with the use of latest technologies. Broadening of the genetic base of cultivated bitter groud varieties as a result of enrichment of the existing resources by using the wild species in the breeding programs. Practical seed production technological know-how along with the use of the MS system (male sterility)/chemical-induced sterility procedure is nonetheless vital to cope up with the market demands. Superior yielding bitter gourd hybrids combining early maturity and resistance to biotic and abiotic stresses are regularly needed to cope up with the challenge of bitter gourd production.

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Heterosis Studies in Bitter Gourd for Yield and Related Characters

Cited by 8 publications

References 2 publications

Evaluation of Parents and Hybrids for Yield and Quality characters in Bitter Gourd (Momordica charantia L.)

Evaluation of Parents and Hybrids for Yield and Quality characters in Bitter Gourd (Momordica charantia L.)

Combining ability analysis ofCucurbita moschataD. in Cote d’Ivoire and classification of promising lines based on their gca effects

Visiting Bitter Gourd (Momordica charantia) from a Breeding Perspective: A Review

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