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| DOI: | 10.21273/HORTSCI.49.7.856 |
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| Publication Type:
| Refereed |
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| Author(s): | Ma, Long;
Kenworthy, Kevin E.;
Lu, Huangjun;
Cherry, Ronald |
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| Author Affiliation: | Ma, Lu, and Cherry: Everglades Research and Education Center, University of Florida/Institute of Food and Agricultural Sciences, Belle Glade; Kenworthy: Department of Agronomy, University of Florida, Gainesville, FL |
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| Title: | Genetic variability of reproductive traits in common carpetgrass |
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| Section: | Breeding, cultivars, rootstocks, and germplasm resources
Other records with the "Breeding, cultivars, rootstocks, and germplasm resources" Section
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| Source: | HortScience. Vol. 49, No. 7, July 2014, p. 856-858. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Axonopus affinis; Breeding improvement; Cultivar evaluation; Fertility; Genetic variability; Genotypes; Heritability; Seed production; Seed yield; Spikelets
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| Abstract/Contents: | "Common carpetgrass is a warm-season grass species that is commonly used as a pasture grass in Louisiana and as an alternative low-maintenance lawn grass in the southern Unites States. Understanding genetic variation for traits related to seed production is important to determine breeding strategies for improvement. Ten genotypes were analyzed for number of branches per inflorescence, number of spikelets per branch, and percentage seed set under self-pollination and open pollination. The 10 genotypes exhibited a wide range of variation for number of spikelets per branch and seed set but had a narrow range of variation for number of branches per inflorescence. Genotype was more important than year in contributing to number of branches per inflorescence, whereas the year variance component had a greater impact on number of spikelets per branch. The relative importance of genotype and environment for seed set differed between the two modes of pollination. Broad-sense heritability was 0.35 for number of branches per inflorescence and 0.07 for number of spikelets per branch. Heritability of seed set was 0.29 when the inflorescences were selfed and 0.50 when the inflorescences were subjected to open pollination. Average percentage seed set of the 10 genotypes under self-pollination and open pollination was not significantly different. However, two of 10 genotypes had significantly different means for seed set between self-pollination and open pollination. This information should be useful to plant breeders to select appropriate breeding methods for cultivar development of common carpetgrass." |
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| Language: | English |
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| References: | 27 |
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| Note: | Equations
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ma, L., K. E. Kenworthy, H. Lu, and R. Cherry. 2014. Genetic variability of reproductive traits in common carpetgrass. HortScience. 49(7):p. 856-858. |
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| DOI: 10.21273/HORTSCI.49.7.856 |
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MSU catalog number: b2217685a |
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