Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize
Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high yiel...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/105993 |
| _version_ | 1855528522975543296 |
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| author | Sangaré, Sekou Menkir, A. Ofori, K. Gracen, V. |
| author_browse | Gracen, V. Menkir, A. Ofori, K. Sangaré, Sekou |
| author_facet | Sangaré, Sekou Menkir, A. Ofori, K. Gracen, V. |
| author_sort | Sangaré, Sekou |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high yielding and adopted hybrid. Forty-five F1 hybrids and three checks were evaluated under Striga-infested and Striga-free conditions in Sanankoroba and Sotuba rainy season. Data collection was carried on grain yield, anthesis silking interval, plant aspect, plant height, days to 50% tasselling and silking, Striga damage ratings and Striga count at 8 and 10 weeks after planting. General combining ability (GCA) of line and Specific combining ability (SCA) of hybrids effects were significant for most traits under both conditions. GCA effects had greater proportion of variance than SCA effects suggesting additive gene effects
controlling the inheritance of yield and Striga resistance. Parental lines TZISTR112, TZISTR1214, TZISTR1222, TZISTR1223, tester TZISTR1207 and TZISTR106 were the best combiner for grain yield under both conditions and they could be used in hybrid development. |
| format | Journal Article |
| id | CGSpace105993 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | CGSpace1059932025-11-11T10:32:06Z Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize Sangaré, Sekou Menkir, A. Ofori, K. Gracen, V. maize striga hermonthica breeding combining ability yields mali agronomic traits Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high yielding and adopted hybrid. Forty-five F1 hybrids and three checks were evaluated under Striga-infested and Striga-free conditions in Sanankoroba and Sotuba rainy season. Data collection was carried on grain yield, anthesis silking interval, plant aspect, plant height, days to 50% tasselling and silking, Striga damage ratings and Striga count at 8 and 10 weeks after planting. General combining ability (GCA) of line and Specific combining ability (SCA) of hybrids effects were significant for most traits under both conditions. GCA effects had greater proportion of variance than SCA effects suggesting additive gene effects controlling the inheritance of yield and Striga resistance. Parental lines TZISTR112, TZISTR1214, TZISTR1222, TZISTR1223, tester TZISTR1207 and TZISTR106 were the best combiner for grain yield under both conditions and they could be used in hybrid development. 2018 2019-12-03T08:56:42Z 2019-12-03T08:56:42Z Journal Article https://hdl.handle.net/10568/105993 en Open Access application/pdf Sangaré, S., Menkir, A., Ofori, K. & Gracen, V. (2018). Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize. Journal of Plant Genetics and Breeding, 2(2), 1-8. |
| spellingShingle | maize striga hermonthica breeding combining ability yields mali agronomic traits Sangaré, Sekou Menkir, A. Ofori, K. Gracen, V. Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title | Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title_full | Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title_fullStr | Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title_full_unstemmed | Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title_short | Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| title_sort | combining ability for grain yield agronomic traits and striga hermonthica resistance of yellow endosperm maize |
| topic | maize striga hermonthica breeding combining ability yields mali agronomic traits |
| url | https://hdl.handle.net/10568/105993 |
| work_keys_str_mv | AT sangaresekou combiningabilityforgrainyieldagronomictraitsandstrigahermonthicaresistanceofyellowendospermmaize AT menkira combiningabilityforgrainyieldagronomictraitsandstrigahermonthicaresistanceofyellowendospermmaize AT oforik combiningabilityforgrainyieldagronomictraitsandstrigahermonthicaresistanceofyellowendospermmaize AT gracenv combiningabilityforgrainyieldagronomictraitsandstrigahermonthicaresistanceofyellowendospermmaize |