Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal
Pearl millet is an important cereal crop for smallholder farmers’ food security in West and Central Africa. However, its production has stagnated due to several factors such as the continuous use of local populations. A set of 17 inbred lines was crossed with Sosat C 88 and Souna 3 following a line...
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Wiley
2018-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2018/3439090 |
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| author | Ghislain Kanfany Amadou Fofana Pangirayi Tongoona Agyemang Danquah Samuel Offei Eric Danquah Ndiaga Cisse |
| author_facet | Ghislain Kanfany Amadou Fofana Pangirayi Tongoona Agyemang Danquah Samuel Offei Eric Danquah Ndiaga Cisse |
| author_sort | Ghislain Kanfany |
| collection | DOAJ |
| description | Pearl millet is an important cereal crop for smallholder farmers’ food security in West and Central Africa. However, its production has stagnated due to several factors such as the continuous use of local populations. A set of 17 inbred lines was crossed with Sosat C 88 and Souna 3 following a line × tester mating design. The F1 hybrids, their parents, and a check were evaluated in Bambey and Nioro research stations during the rainy season of 2017. Data on downy mildew incidence, plant height, flowering time, panicle length and diameter, productive tillers, thousand-grain weight, panicle, and grain yield were recorded. GCA and SCA mean squares were significant for most of the traits indicating that both additive and nonadditive gene effects were involved in the control of the inheritance of these traits. However, the contribution of GCA to total mean squares was higher than that of SCA for all the traits, providing that additive gene action was more important in their inheritance. The top-cross hybrid IBL155-2-1 × Sosat C 88 exhibited negative and significant SCA effects for downy mildew incidence, flowering time, and plant height. Lines IBL003-B-1, IBL091-1-1, IBL095-4-1, IBL110-B-1, and IBL 206-1-1 had positive GCA effects for grain yield and negative GCA effects for downy mildew, flowering time, and plant height. These lines can be used as parents to create synthetic varieties or hybrids. |
| format | Article |
| id | doaj-art-3fe55165cc1d48288c908f458d9ed713 |
| institution | Kabale University |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Agronomy |
| spelling | doaj-art-3fe55165cc1d48288c908f458d9ed7132025-02-03T05:46:36ZengWileyInternational Journal of Agronomy1687-81591687-81672018-01-01201810.1155/2018/34390903439090Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of SenegalGhislain Kanfany0Amadou Fofana1Pangirayi Tongoona2Agyemang Danquah3Samuel Offei4Eric Danquah5Ndiaga Cisse6West Africa Centre for Crop Improvement, University of Ghana, PMB LG 30, Legon, GhanaCentre National de Recherches Agronomiques de Bambey, BP 211, Bambey, SenegalWest Africa Centre for Crop Improvement, University of Ghana, PMB LG 30, Legon, GhanaWest Africa Centre for Crop Improvement, University of Ghana, PMB LG 30, Legon, GhanaWest Africa Centre for Crop Improvement, University of Ghana, PMB LG 30, Legon, GhanaWest Africa Centre for Crop Improvement, University of Ghana, PMB LG 30, Legon, GhanaCentre d’Etudes Régional pour l’Amélioration de l’Adaptation à la Sècheresse, BP 3320, Thies, SenegalPearl millet is an important cereal crop for smallholder farmers’ food security in West and Central Africa. However, its production has stagnated due to several factors such as the continuous use of local populations. A set of 17 inbred lines was crossed with Sosat C 88 and Souna 3 following a line × tester mating design. The F1 hybrids, their parents, and a check were evaluated in Bambey and Nioro research stations during the rainy season of 2017. Data on downy mildew incidence, plant height, flowering time, panicle length and diameter, productive tillers, thousand-grain weight, panicle, and grain yield were recorded. GCA and SCA mean squares were significant for most of the traits indicating that both additive and nonadditive gene effects were involved in the control of the inheritance of these traits. However, the contribution of GCA to total mean squares was higher than that of SCA for all the traits, providing that additive gene action was more important in their inheritance. The top-cross hybrid IBL155-2-1 × Sosat C 88 exhibited negative and significant SCA effects for downy mildew incidence, flowering time, and plant height. Lines IBL003-B-1, IBL091-1-1, IBL095-4-1, IBL110-B-1, and IBL 206-1-1 had positive GCA effects for grain yield and negative GCA effects for downy mildew, flowering time, and plant height. These lines can be used as parents to create synthetic varieties or hybrids.http://dx.doi.org/10.1155/2018/3439090 |
| spellingShingle | Ghislain Kanfany Amadou Fofana Pangirayi Tongoona Agyemang Danquah Samuel Offei Eric Danquah Ndiaga Cisse Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal International Journal of Agronomy |
| title | Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal |
| title_full | Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal |
| title_fullStr | Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal |
| title_full_unstemmed | Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal |
| title_short | Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal |
| title_sort | estimates of combining ability and heterosis for yield and its related traits in pearl millet inbred lines under downy mildew prevalent areas of senegal |
| url | http://dx.doi.org/10.1155/2018/3439090 |
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