The hybrid maize cultivars of multinational seed companies are gradually being popular among the farmers in Nepal. This paper reports on research finding of 117 maize hybrids of 20 seed companies assessed for grain yield and other traits at three sites in winter season of 2011 and 2012. The objective of the study was to identify superior maize hybrids suitable for winter time planting in eastern, central and inner Terai of Nepal. Across site analysis of variance revealed that highly significant effect of genotype and genotype × environment interaction (GEI) on grain yield of commercial hybrids. Overall, 47 genotypes of 16 seed companies identified as high yielding and stable based on superiority measures. The statistical analysis ranked topmost three genotypes among tested hybrids as P3856 (10515 kg ha-1), Bisco prince (8763 kg ha-1) as well as Shaktiman (8654 kg ha-1) in the first year; and 3022 (8378 kg ha-1), Kirtiman manik (8323 kg ha- 1) as well as Top class (7996 kg ha-1) in the second year. It can be concluded that stable and good performing hybrids identified as potential commercial hybrids for general cultivation on similar environments in Nepal.
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机译：跨国种子公司的杂交玉米品种在尼泊尔的农民中逐渐流行。本文报告了对2011年和2012年冬季三个地点的20个种子公司的117个玉米杂交种进行了谷物产量和其他性状评估的研究结果。该研究的目的是确定适合东部东部冬季种植的优质玉米杂交种，尼泊尔中部和内部的德赖。变异的跨站点分析表明，基因型和基因型×环境相互作用（GEI）对商品杂种的籽粒产量具有极高的影响。总体而言，根据优势标准，16家种子公司的47个基因型被确定为高产且稳定。统计分析在测试的杂种中排名最高的三种基因型为第一年的P3856（10515 kg ha-1），Bisco王子（8763 kg ha-1）和Shaktiman（8654 kg ha-1）。和第二年的3022（8378 kg ha-1），Kirtiman人体模型（8323 kg ha-1）以及顶级（7996 kg ha-1）。可以得出结论，稳定和表现良好的杂种被确定为在尼泊尔类似环境下进行常规栽培的潜在商业杂种。
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