Global ETD Search
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Showing 1 to 15 of 15 for “"general combining ability"”.
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PARENT SELECTION IN TOMATO BASED ON MORPHO-PHYSIOLOGICAL TRAITS
… between selected morpho-physiological traits and general combining ability for yield in determinate and indeterminate tomato inbred lines, to determine if a relationship exists between these traits and the average probability that an inbred can produce transgressive segregates, and to determine if …
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Barley Yellow Dwarf of Winter Wheat: Effects on Germplasm, and Inheritance, Combining Ability, and Reciprocal Effect for Tolerance to the Barley Yellow Dwarf Virus
… outstanding tolerance, though genetic variability for tolerance to the virus exists and seems to be quantitatively inherited. Heritability of tolerance is low under both fall and spring infection, but is higher under fall than spring inoculation. An interaction of entries with time of …
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Agronomic evaluation of four maize synthetics after recurrent selection for yield and evaluation of selected lines from the synthetics
… was compared with recurrent selection for general combining ability in BS13(S(,2)), and half-sib selection in the intervarietal cross, BS6(RS). The original and improved populations and population crosses, and crosses among selected lines derived from the improved populations were grown at …
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Three studies in marker-assisted plant breeding
… performance and their parents with outstanding general combining ability for yield by genomic best linear unbiased prediction. We also find that parental genetic distance is negatively correlated with mid-parent heterosis and performance of progeny for most traits, including yield, in the …
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Experimental designs for population hybridization studies
… designs was to obtain information about (i) the general combining ability of populations, (ii) the specific combining ability of population crosses, (iii) the general combining ability of individuals, and (iv) the specific combining ability of individual crosses. These concepts were first …
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Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation
… from the study showed differences in both General Combining Ability (GCA) and Specific Combining Ability (SCA) effects for grain yield. GCA effects ranged from -0.57 to 0.78. SCA effects were different within each tester. The SCA effects with tester A, ranged from - 0.67 to 0.58, with …
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Combining ability, protein, heterosis, and prediction of F₁ performance with RFLPs in a diallel of maize
… first study, diallel analyses were used to study combining ability and types of gene action important in the inheritance of protein content, grain yield, grain moisture at harvest, time to silk, kernel hardness, and density. General combining ability (GCA) and specific combining ability (SCA) …
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Diallel analysis of diplopodia ear rot resistance in maize and an assessment of the genetic variability of Stenocarpella maydis through isozyme analysis
… DER resistance, and examining the genetic variability of the fungus from isolates collected from the U.S. and the Republic of South Africa. DER developed in maize following inoculations with a spore suspension prior to flowering in both greenhouse and field evaluations. A spore suspension gave …
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A genetic study of resistance to kernel infection by Aspergillus flavus in maize (Zea mays L.)
… parents contained the leafy gene (Lfy). From the combining ability analysis of the five maize parents and their 20 F1s, highly significant general combining ability (GCA), specific combining ability (SCA), and reciprocal effects were found. The analysis of genetic effects showed that the parents …
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Genetics underlying flaking grit yield from dry milled maize grain
… corn dry basis. Narrow and broad sense heritability estimates for FGY were 0.53 and 0.65, respectively, indicating the importance of additive gene action for this trait. The general combining ability (GCA) variance for FGY was twice the size of the specific combining ability variance, …
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Derivation, fertility and breeding value of doubled monoploids from the diploid potato species, Solanum phureja
… of four doubled monoploids exhibited superior general combining ability over the anther donor under field conditions. This demonstrates the potential of passage of a heterozygous genotype through the monoploid sieve. The advantage of the monoploid sieve may be more or less evident depending on …
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Inheritance of Weevil Resistance in Maize
… analysis method 2 assuming fixed effects. Heritability and relative dominance estimates were made under random effects model. General combining ability(GCA) and specific combining ability(SCA)effects were significant for number of insects and weight loss at both infestation periods. At 63 days …
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Inheritance of Weevil Resistance in Maize
… analysis method 2 assuming fixed effects. Heritability and relative dominance estimates were made under random effects model. General combining ability(GCA) and specific combining ability(SCA)effects were significant for number of insects and weight loss at both infestation periods. At 63 days …
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Genetic Environmental Effects on Silage Productivity of Corn (Zea mays L.)
… for high quality corn silage. Mean squares of general combining ability (GCA) and specific combining ability (SCA) were highly significant for grain and stover yields. The GCA/SCA ratio for stover yield was much higher than that of grain yield, indicating that the GCA effect was more important …
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Evaluation of additive and nonadditive genetic variation in elite maize germplasm for root, shoot, and ear characteristics
… resistance, stalk and root strength, as well as generally improved performance under a range of biotic and abiotic stresses. Ten proprietary and two public inbreds were evaluated with a generation means design emanating from the diallel cross of the 12 parents. Parental inbreds, F1 hybrids, and …