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Predicting Yield and Stability Analysis of Wheat under Different Crop Management Systems across Agro-Ecosystems in India

引用

American Journal of Plant Sciences 2017年第8期8卷 1977-2012页

作者： Mangi Lal Jat Raj Kumar Jat Parvinder Singh Shankar Lal Jat Harminder Singh Sidhu Hanuman Sahay Jat deepak bijarniya Chiter Mal Parihar Raj Gupta International Maize and Wheat Improvement Center (CIMMYT) National Agriculture Science Center (NASC) Complex New Delhi India Indian Council of Agricultural Research (ICAR) Indian Institute of Maize Research New Delhi India Borlaug Institute for South Asia (BISA) International Maize and Wheat Improvement Center (CIMMYT) New Delhi India

The objectives of the study were as follows: 1) to evaluate the GxExM for wheat genotypes;2) to predict yield performance and identify high stable wheat genotypes in different management practices;and 3) to make genotype-specific management and high performing genotype recommendations within and across agro-ecological regions. A diverse set of twenty-one genotypes was evaluated over three years (2012, 2013 and 2014) under two levels of crop management practices (CT and ZT) across three agro-ecological regions (BR, MP and PB) of India in replicated trials. Data were analyzed with SASGxE and RGxE programs using SAS and R programming languages, respectively. Across and within a location(s), the pattern of GxExM and GxMxY interactions (respectively) among univariate and multivariate stability statistics, grouping of genotypes in divisive clusters and estimates (with a prediction interval) of genotype varied in management practice CT and ZT. Across locations, the genotypes “Munal” and “HD-2967” were the best performers and high stable in CT and ZT, respectively. Genotypes “HD-2824” and “DPW-621-50”, and “Munal” may serve as diverse parents for developing high quality, climate smart, locally adapted genotypes for BR in CT and ZT, respectively. Genotypes “HD-2932”, “BAZ” and “JW-3288”, and “GW-322” and “HD-2967” are suitable for developing locally adapted stress tolerant genotypes for MP in management practices CT and ZT, respectively. Relatively small GxM and GxExM interactions in PB preclude in making definitive conclusions.

关键词： Stability Analysis GxExM BLUPs Forest Plots GGE Biplot Wheat Univariate Stability Statistics

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