Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique
Drought has negative effects on sweetpotato production. Two experiments with two watering treatments (irrigated and water-stressed) were conducted at Umbeluzi Research Station in 2015. The objectives were to (i) determine response of 48 sweetpotato germplasms to mid-season drought, (ii) determine be...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Walter de Gruyter GmbH
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/91975 |
| _version_ | 1855526019239247872 |
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| author | Makunde, G.S. Andrade, M.I. Ricardo, J. Alvaro, A. Menomussanga, J. Grüneberg, W.J. |
| author_browse | Alvaro, A. Andrade, M.I. Grüneberg, W.J. Makunde, G.S. Menomussanga, J. Ricardo, J. |
| author_facet | Makunde, G.S. Andrade, M.I. Ricardo, J. Alvaro, A. Menomussanga, J. Grüneberg, W.J. |
| author_sort | Makunde, G.S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Drought has negative effects on sweetpotato production. Two experiments with two watering treatments (irrigated and water-stressed) were conducted at Umbeluzi Research Station in 2015. The objectives were to (i) determine response of 48 sweetpotato germplasms to mid-season drought, (ii) determine best traits for improvement of storage root yield under mid-season drought and (iii) assess the selection criteria for identifying drought tolerance in sweetpotato germplasms. The irrigated and water- stressed trials received 640 and 400 mm of water, respectively, throughout the season. Water stress was imposed from 30 to 70 days after planting. Each treatment had two replicates arranged in a randomized complete block design. Data collected on storage root and vine yield and derived drought tolerance indices including harvest index were subjected to analysis of variance in R. Sweetpotato germplasms with high storage root yield under mid-season drought were associated with a high harvest index. Harvest index stability and the geometric mean are key to identifying cultivars with high and stable storage root yield under both treatments. MUSGP0646-126, Irene and Ivone combined both low TOL, SSI, HI and high yield storage root yield across the treatments and over seasons. The use of drought and harvest indices is encouraged for selecting improved cultivars for varied production environments and their regular use in accelerated breeding schemes is suggested. |
| format | Journal Article |
| id | CGSpace91975 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Walter de Gruyter GmbH |
| publisherStr | Walter de Gruyter GmbH |
| record_format | dspace |
| spelling | CGSpace919752024-11-14T08:04:33Z Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique Makunde, G.S. Andrade, M.I. Ricardo, J. Alvaro, A. Menomussanga, J. Grüneberg, W.J. sweet potatoes germplasm collections yields drought stress harvest index Drought has negative effects on sweetpotato production. Two experiments with two watering treatments (irrigated and water-stressed) were conducted at Umbeluzi Research Station in 2015. The objectives were to (i) determine response of 48 sweetpotato germplasms to mid-season drought, (ii) determine best traits for improvement of storage root yield under mid-season drought and (iii) assess the selection criteria for identifying drought tolerance in sweetpotato germplasms. The irrigated and water- stressed trials received 640 and 400 mm of water, respectively, throughout the season. Water stress was imposed from 30 to 70 days after planting. Each treatment had two replicates arranged in a randomized complete block design. Data collected on storage root and vine yield and derived drought tolerance indices including harvest index were subjected to analysis of variance in R. Sweetpotato germplasms with high storage root yield under mid-season drought were associated with a high harvest index. Harvest index stability and the geometric mean are key to identifying cultivars with high and stable storage root yield under both treatments. MUSGP0646-126, Irene and Ivone combined both low TOL, SSI, HI and high yield storage root yield across the treatments and over seasons. The use of drought and harvest indices is encouraged for selecting improved cultivars for varied production environments and their regular use in accelerated breeding schemes is suggested. 2017-03-01 2018-04-02T00:31:13Z 2018-04-02T00:31:13Z Journal Article https://hdl.handle.net/10568/91975 en Open Access Walter de Gruyter GmbH Makunde, G.S.; Andrade, M.I.; Ricardo, J.; Alvaro, A.; Menomussanga, J.; Gruneberg, W. 2017. Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique. Open Agriculture. (Poland). ISSN 2391-9531. 2(1):133-138. |
| spellingShingle | sweet potatoes germplasm collections yields drought stress harvest index Makunde, G.S. Andrade, M.I. Ricardo, J. Alvaro, A. Menomussanga, J. Grüneberg, W.J. Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title | Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title_full | Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title_fullStr | Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title_full_unstemmed | Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title_short | Adaptation to mid-season drought in a sweetpotato (Ipomoea batatas [L.] Lam) germplasm collection grown in Mozambique |
| title_sort | adaptation to mid season drought in a sweetpotato ipomoea batatas l lam germplasm collection grown in mozambique |
| topic | sweet potatoes germplasm collections yields drought stress harvest index |
| url | https://hdl.handle.net/10568/91975 |
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