Selection of high-yield maize hybrid under different cropping systems based on stability and adaptability parameters

Abstract

The intercropping of maize with other food crops is a current solution to problems in food crop production and crop failures. The objectives of the study were to (i) select adaptive maize hybrids in intercropping as well as sole-cropping systems, and (ii) test the ideal cropping system to evaluate best hybrids for intercropping. This study used 12 maize hybrids with different genetic backgrounds. Planting was carried out for two seasons using four cropping systems. Hybrids were selected according to their adaptability and stability based on parametric, nonparametric, and multivariate analyses. The results showed that G10 had high yield for all cropping systems. G10 was also selected as an adaptive hybrid for sole-cropping, whereas G9 was selected as an adaptive hybrid for intercropping. The L5 and L4 were ideal environments for evaluating hybrids under different cropping systems. The selected hybrids should be evaluated and disseminated for small-holder farmers in Indonesia.

Evaluation of High Yielding Maize Hybrids Based on Combined Stability Analysis, Sustainability Index, and GGE Biplot

“…The high genotype differences in this analysis may be due to the fact that the material used is a new hybrid that has not yet been released nationally thus requiring extensive testing in multienvironments. Ruswandi et al [ 38 ] also revealed that the differences in genotypes can cause grain yield variations in multienvironment trials. In another study, Karuniawan et al [ 39 ] reported that differences in the origin of the genotypes used can also be a differentiator for potential yields.…”

“…The GEI effect also has implications in the plant selection process. The emergence of GEIs can make the selection process difficult and inefficient [ 5 , 38 , 41 ]. The emergence of GEIs in multienvironment evaluation requires stability analysis to select high yielding and stable genotypes in a wide range of environment.…”

Genotype-by-environment interactions (GEIs) and evaluate superior sweet potato (Ipomoea batatas [L.] Lam) using combined analysis and GGE biplot

“…Numerous methods have been suggested to analyze GEIs, adaptability and stability of genotypes under diverse environmental conditions. Including parametric and non-parametric measurements, and visual measurements such as AMMI and GGE biplot [ [12] , [13] , [14] , [15] , [16] ]. Each of these measurements can complement each other for investigating and interpreting GEIs and genotype stability, ultimately leading to fairly clear information about these interactions as genotype sensitivity to the test environment [ 4 , [17] , [18] , [19] ].…”