Search Results

You are looking at 1 - 10 of 129 items for :

  • "combining ability" x
  • All content x
Clear All
Free access

Jennifer A. Kimball, Thomas G. Isleib, William C. Reynolds, Maria C. Zuleta, and Susana R. Milla-Lewis

using a diallel analysis. General combining ability was the largest source of variation for winter survival and lethal temperature. The large additive variance indicated that st. augustinegrass should respond to selection ( Philley et al., 1998

Free access

Fekadu Gurmu, Shimelis Hussein, and Mark Laing

the expression of traits. Therefore, the objective of this study was to determine the combining ability, type of gene action, heterosis and heritability of storage root DMC, β-carotene content, and yield-related traits of selected sweetpotato clones

Free access

Stanisław Pluta, Edward Żurawicz, Marcin Studnicki, and Wiesław Mądry

genotypes in a quantitative trait can be appropriately assessed using their genetic parameters such as the general and specific combining ability of any given trait. The GCA of a parental genotype for the quantitative trait of interest describes the ability

Free access

W.A. Erb, A.D. Draper, G.J. Galletta, and H.J. Swartz

Abbreviations: BS, berry size; CYV, canopy volume; DFR, days to fruit ripe; DIF, differences in canopy volume; #DBF&F, number of days between flowering and fruiting; GCA, general combining ability; SCA, specific combining ability, TFW, total fruit

Free access

W.A. Erb, A.D. Draper, and H.J. Swartz

Abbreviations: A, net photosynthesis; CYV, canopy volume; E, transpiration; FCYV, fraction of canopy volume; GCA, general combining ability; g 1 , leaf conductance of water; LT, leaf temperature; SCA, specific combining ability; VPD, vapor pressure

Free access

Cecil Pounders, Tim Rinehart, Ned Edwards, and Patricia Knight

general combining ability (GCA) effects for 10 crapemyrtle parents for four traits (height, leaf out, bloom date, and flower color). z In this study, parental GCA was a very good predictor for SCA means recorded for the families ( Table 5 ). The

Free access

Agnieszka Masny, Edward Żurawicz, Kris Pruski, and Wiesław Mądry

ability for the resistance trait will undoubtedly significantly contribute to the efficacy of the breeding programs. General combining ability of a parental genotype for the quantitative trait of interest describes the ability of that parent to pass the

Free access

Ali Akbar Ghasemi Soloklui, Ali Gharaghani, Nnadozie Oraguzie, and Armin Saed-Moucheshi

and woody plants ( Hummel et al., 1982 ; Tibbits et al., 1991 ). To understand the combining ability of the parental lines crossed with one another, the Griffing method was used to estimate both GCA and SCA effect of each parental line ( Table 4

Free access

Richard L. Bell and Richard H. Zimmerman

Combining ability for transmission of juvenile period duration was studied in a large pear breeding population. The 92 parents, consisting of cultivars and selections of Pyrus communis L. and its interspecific hybrids with P. pyrifolia (Burm.) Nakai and P. ussuriensis Maxim., as well as genotypes of P. calleryana Decne., were crossed in 298 combinations. General combining ability was highly significant and of much larger magnitude than specific combining ability, indicating that juvenile period length was under predominantly additive genetic control. Selection of parents based on their juvenile period or their combining ability constants is likely to result in significant reduction in mean juvenile period.

Free access

Yayeh Zewdie, Paul W. Bosland, and Robert Steiner

The inheritance of capsaicinoid content was studied in five Capsicum pubescens Ruiz & Pav. genotypes using diallel analysis. General combining ability and specific combining ability effects were significant for all capsaicinoids studied, indicating additive and nonadditive gene actions are present. The association of high capsaicinoid contents with high positive general combining ability of the parents also indicates the predominance of additive gene action in capsaicinoid inheritance. Because of the predominant additive gene effect, recurrent selection would be a good breeding method to increase capsaicinoid level in the population studied. Heterosis was observed in hybrids for some of the capsaicinoids, suggesting that F1 hybrids could also be used to increase capsaicinoid content.