Abstract
Background and Objectives: Intercropping of maize with sweet potato is one of cropping systems to improve land use efficiency of maize and sweet potato. The goals of the research were to study GE interaction and to select adaptive maize hybrid for intercropping with sweet potato. Materials and Methods: Two experiments were set up in Bandung, Indonesia during rainy and dry season. The genetic materials were 13 new and one commercial check hybrids. These materials were cultivated based on a split plot design arrangement with two replications which the main plot comprised maize sole cropping and maize/sweet potato inter-cropping and the sub-plot was the hybrid. Data analysis covered the analysis of variance of maize hybrid in the maize sole cropping and in the intercropping system with sweet potato during both rainy and dry seasons. Homogeneity of variance error was tested using Bartlett test. Combined ANOVA was pursued to determine the interaction of GE interaction (GEI) when variance errors were homogenous. Adaptability of maize hybrids was determined using genotype and genotype-environment interaction (GGE) biplot analysis. Results: The adaptive maize for intercropping with sweet potato was selected based on their land equivalent ratio (LER) and competitive ratio (CR). Genotype 34 was selected as potential hybrid variety for intercropping with sweet potato. Conclusion: The GE interaction (GEI) plays an important role for male flowering and yield as well as genotype in this study. Selection of stable and adaptive maize hybrid variety for intercropping with sweet potato requires further multi-environment evaluation in several locations in Indonesia.
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Claims 3
Claim · model-written summary
Genotype 34 was selected as a potential hybrid variety for intercropping with sweet potato, based on land equivalent ratio and competitive ratio.
- Material
- Genotype 34e1
- Outcome
- selected as potential hybrid variety for intercropping with sweet potatoe1
- Qualifier
- based on their land equivalent ratio (LER) and competitive ratio (CR)e2
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Genotype 34 was selected as potential hybrid variety for intercropping with sweet potato”
e2“The adaptive maize for intercropping with sweet potato was selected based on their land equivalent ratio (LER) and competitive ratio (CR)”
Claim · model-written summary
The GE interaction plays an important role for male flowering and yield in this study.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The GE interaction (GEI) plays an important role for male flowering and yield as well as genotype in this study”
e4“Selection of stable and adaptive maize hybrid variety for intercropping with sweet potato requires further multi-environment evaluation in several locations in Indonesia”
Claim · model-written summary
Further multi-environment evaluation in several locations in Indonesia is required before a stable adaptive maize hybrid is selected for intercropping with sweet potato.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Selection of stable and adaptive maize hybrid variety for intercropping with sweet potato requires further multi-environment evaluation in several locations in Indonesia”