Exploiting combining ability in a diallel cross between native and elite cucumber (Cucumis 
sativus L.) varieties

Manggoel, W.; Uguru, M. I.; Ogbonna, P. E.; Dasbak, M. A.

doi:10.5897/jpbcs2021.0955

Cited by 3 publications

(3 citation statements)

References 20 publications

(30 reference statements)

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“…The average degree of heritability in the broad sense of the reverse effect was greater than the reciprocal effect, and the low degree of heritability in the narrow sense indicated that the additional action was less than the dominant action in the inheritance of these traits, and also indicated that the genetic effect was higher than the environmental effect of the traits, and for this reason it is possible to follow the hybridization method to improve most of the genetic traits of cucumbers grown in greenhouses by. These results have been agreed by [20], [21], [22] in cucumber and [23] in eggplant…”

Section: Greenhouse Yield (Ton Greenhousesupporting

confidence: 78%

Production and Evaluation of F1 Hybrids of Protected Cultivation Cucumber

Mohammed,

Alabdaly

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The study was conducted in the College of Agriculture, University of Anbar, in the Autumn season of 2021 and spring 2022, in an unheated greenhouse. Four pure lines of Gynoecious cucumbers for protected cultivation were used, and full diallel cross were conducted in all directions to produce 12 reciprocal and reverse hybrids of the F1. The seeds of the parents and the resulting hybrids were sown. Including it with an approved hybrid (Kanz) for the purpose of comparison, which numbered 17 genotypes according to the design of Randomized Complete Block Design (RCBD) with three replications to evaluate the parents and the resulting hybrids and estimate some genetic parameters and the type of genetic action. The results showed that there were significant differences in the studied lines, as parents P4 and P1 showed superior over the other of the parents, as father 4 gave the best results for the parents in the characteristics of the number of nodes on the plant, leaf area, number of fruits and plant yield, which amounted to 36.32 node plant−1, 114.74 dm2 plant−1, 55.35 fruit plant−1 and 4.59 kg plant−1, and parent 1 did not differ from parent 4 in most characteristics, while parent 2 recorded the lowest results in all characteristics. The average heritability in the broad sense of the reverse effect was greater than the reciprocal effect and the low degree of heritability in the narrow sense, which indicates the possibility of Hybridization to obtain the desired characteristics and to obtain distinct hybrids.

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Section: Greenhouse Yield (Ton Greenhousesupporting

confidence: 78%

Production and Evaluation of F1 Hybrids of Protected Cultivation Cucumber

Mohammed,

Alabdaly

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The high heterotic effect over standard parent was reported by Nimitha et (2018) for fruit yield per plant and number of fruits per plant in cucumber that can be used in commercial cultivation. Manggoel et al, (2021) reported the signi cant diversity between the cucumber genotypes studied. The ndings from this study showed the priority of dominant gene effects over additive gene effects for the genetic control of vine length and number of leaves per plant (Manggoel et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…Manggoel et al, (2021) reported the signi cant diversity between the cucumber genotypes studied. The ndings from this study showed the priority of dominant gene effects over additive gene effects for the genetic control of vine length and number of leaves per plant (Manggoel et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of General and Specific Combining Ability for Doubled Haploid Lines in Sweet Pepper (Capsicum Annuum L.)

Bayati

Shariatpanahi

Mostafavi

et al. 2022

Preprint

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Hybrid cultivars are commercially and economically important; hence, too much effort needed to improve the quality and quantity of hybrids. In this research project, general (GCA) and specific (SCA) combining ability of 32 doubled haploid (DH) lines of sweet pepper produced via microspore embryogenesis were evaluated. The DH lines were crossed with the top cross parent as the tester to evaluate general combining ability (GCA). Traits including morphological and yield-related characteristics to assess the general combining ability of lines were recorded and analyzed. The half-diallel mating crosses were performed using GCA based on the selected seven DH lines for SCA evaluation. Mean squares of GCA and SCA values were highly significant for most of the characters. DH55 line indicated the highest positive GCA for average yield per plant, moreover, the highest positive SCA was obtained for 55×64 hybrid. The ratio of \(\frac{MS \left(GCA\right)}{MS \left(SCA\right)}\) showed the non-additive gene actions in controlling all traits except fruit width and length and seed fresh weight. According to the results of specific combining ability of DH lines, four F1 hybrids were selected for new cultivar registration. The results obtained in the present study are applicable to release new F1- hybrids, which can be more reliable than those hybrids introduced by conventional selfing programs in sweet pepper due to 100% genetic purity of DH lines.

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