Diallel analysis in Citrullus mucosospermus (Fursa) for fruit traits

Brou, Kouakou Fulgence; Sie, Raoul SylvÃ ̈re; Adjoumani, Koffi; Saraka, Yao Didier Martial; Kouago, Badie Arnaud; Adahi, Cynthia Deborah

doi:10.5897/ajar2018.13313

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…It is therefore suggested to use these crosses for the selection of a plant in later generations of breeding [38]. It should also be noted that non-significant sca can be obtained after a crossover involving two best general combiners [8]. Therefore, it cannot be generalized that parents with high gca effects could only produce good hybrids [40].…”

Section: Discussionmentioning

confidence: 99%

“…Given all the nutritional potential of this species, consideration should be given to this crop in agronomic research in order to improve its productivity, its fruit and seed yields and its other characteristics of nutritional values to humans such as its leaves. The productivity of this species can be increased by improving the genetic architecture across different cultivars or through the selection of high yielding cultivar [8]. For this, knowledge of certain genetic parameters that govern the important agronomic traits of the crop is necessary, and can be obtained through diallel cross design [9] and implementation.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

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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Breeding strategies for enhancing nutrient content and quality in Cucurbitaceae: a review

Shafiin

Ablah

Nudin

et al. 2020

International Journal of Vegetable Science

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Combining ability analysis of Cucurbita moschata D. in Côte d’Ivoire and classification of promising lines based on their gca effects

KOUAGO,

SEKA,

BROU

et al. 2024

PLoS ONE

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Cucurbita moschata varieties grown in Africa have very low yield. They have been neglected, and totally ignored in agricultural research programs. However, interest in their fruits, seeds, flowers and leaves is growing nowadays due to their nutritional and medicinal potentials. That growing interest has prompted plant breeders and agronomists to develop research programs for their improvement. A complete diallel cross analysis of four parental lines, Long, Zouan-H, Oval, and Soubre and their twelve F1 hybrids, was carried out in a farming environment at the University Nangui Abrogoua, Abidjan, Côte d’Ivoire. The four parental lines and the F1 hybrids were evaluated for their general performances, combining abilities, potency ratio and heterosis effects. The investigated traits included plant height, and eleven fruit- and seed-related characters. The analysis of variance showed significant differences for all traits studied. In addition, the diallel model yielded highly significant gca effects of the female parents. The gca effects of the male parents were significant for all traits except plant height, length of the fruit, width of the fruit and length of the seed. Highly significant sca effects were observed in the crosses for all the traits. Strong maternal effects were observed for the weight and diameter of the fruit, weight of the pulp, number of seeds per fruit, weight of the fresh seeds and 100-seed weight. The general predictive ratio approached the value 1 for all the traits except weight of the fresh seed and width of the dry seed. Most of the characters under this study are predominantly determined by the effects of additive genes. But, weight of the fresh seed and width of the dry seed may be controlled by non-additive genes. Mid-parent heterosis was significant for all measured traits in the crosses, except the length of the fruit. And better-parent heterosis was significant for all traits except plant height, number of fruits per plant and length of the fruit. Gene expression is described by a super-dominance for many traits, and partial dominance for some other traits in all twelve F1 hybrids. Classification of the parental lines based on the effects of their general combining ability grouped the Soubre lines as promising contributors to fruit yield. The parental lines Long and Oval formed 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 large number of seeds per fruit. However, Long would be a candidate parent for the development of cultivars with longer vegetative growth. The parental line Zouan-H formed the third group and it was mostly characterized by its large number of seeds per fruit and relatively large fruits.

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Diallel analysis in Citrullus mucosospermus (Fursa) for fruit traits

Cited by 3 publications

References 27 publications

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

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

Breeding strategies for enhancing nutrient content and quality in Cucurbitaceae: a review

Combining ability analysis of Cucurbita moschata D. in Côte d’Ivoire and classification of promising lines based on their gca effects

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