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Replication Data for: Genotype x environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique.

International Potato Center Dataverse OAI Archive

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Title Replication Data for: Genotype x environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique.
 
Identifier https://doi.org/10.21223/P3/M0HGJ4
 
Creator Andrade, Maria
Naico, Abdul
Ricardo, Jose
Eyzaguirre, Raul
Makunde, Godwill
Gruneberg, Wolfgang
Ortiz, Rodomiro
 
Publisher International Potato Center
 
Description The objectives of this research were to estimate the impact of genotype × environment interactions (G×E) in sweetpotato and select genotypes based on drought indices such as geometric mean, percent yield reduction, drought sensitivity index and harvest index. Experiments were set up at Umbeluzi Research Station, 32 km South of Maputo. A total of 58 clones were evaluated during the dry season of 2006 and 2008. Two treatments were applied for this multi-year trial: full irrigation and without irrigation at the middle of root initiation growth stage. The field layout was a randomized complete block design with three replications. ‘Jonathan’, ‘Resisto’ and ‘Tanzania’ were the check cultivars in each treatment. Data were collected on storage root and vine yields in the field and DM in the quality laboratory using root samples from the fields. Computation of Harvest index, geometric means, drought sensitity index, drought intensity index as well as drought tolerance expression were made from the field data. The analysis of variance, regression and the additive main effects multiplicative interaction (AMMI) analyses, plus phenotypic coefficient of variation and ecovalence were used for dissecting the G×E and assessing the stability of each clone.
 
Subject Agricultural Sciences
Biomass
Yield
Drought Stress
Drought sensitivity index
Ecovalence
Regression
Stability
Storage root yield
Vine
Water deficit
 
Language English
 
Contributor Administrator, CIP
United States Agency for International Development
CGIAR Research Program on Roots, Tubers and Bananas (RTB)
Rockefeller Foundation
Bill and Melinda Gates Foundation
Alliance for a Green Revolution in Africa