Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (4): 863-868.DOI: 10.16178/j.issn.0528-9017.20240341

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Analysis of high yield and stable yield of silage maize in Huanghuaihai Region based on GGE biplot

LI Shufen(), CHAI Wenbo, XU Hanyuan, ZHU Qing, LI Hongtao, YUAN Chao, WANG Jun()   

  1. Lianyungang Academy of Agricultural Sciences, Lianyungang 222000, Jiangsu
  • Received:2024-04-29 Online:2025-04-11 Published:2025-05-09
  • Contact: WANG Jun

Abstract:

In order to determine the high yield and stable yield of the trial varieties of summer sown silage maize in Huanghuaihai Region in 2020, and to provide reasonable analysis methods and theoretical references for further variety promotion and planting, data from 15 varieties (lines) and 13 pilot sites of the 5 000 seedlings per 667 m2 density group regional trial of summer sown silage maize in the Huanghuaihai Region in 2020 were selected. The analysis method of genotype main effects and genotype×environment interaction (GGE) biplot was applied to analyze the high yield and stable yield of the trial varieties, as well as the differentiation and representativeness of the pilot sites. The results showed that the varieties with high yield and stable yield were Wannongke Silage 6, Chuandan 99, Lian Silage 101, and Yuqingyu 9, which were also the ideal varieties in this group of regional trials. The ideal variety is suitable for planting and promotion in most areas of Huanghuaihai Region. Shijiazhuang City, Hebei Province is the most ideal pilot for this regional trial.

Key words: silage maize, GGE biplot, high yield, stable yield

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