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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (18): 9-13.doi: 10.11924/j.issn.1000-6850.casb2023-0431

Special Issue: 生物技术 玉米

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Study on Yielding Ability, Stability and Adaptability in Maize Based on GGE-Biplot

TANG Yi(), LIU Jianxin, LI Qingchao(), GE Pingzhen   

  1. Bijie Institute of Agricultural Sciences, Bijie, Guizhou 551700
  • Received:2023-06-07 Revised:2023-09-15 Online:2024-06-18 Published:2024-06-18

Abstract:

The aims were to explore the main functions and characteristics of GGE double plot, and to select new maize varieties with high and stable yield. In this study, the yield data of 5 new maize combinations in 7 experimental sites were analyzed by GGE-biplot, the high yield, stable yield and adaptability of maize varieties tested at high altitudes in northwest Guizhou were evaluated, and the discrimination and representativeness of the test sites were analyzed. The results showed that the experimental sites could be divided into two ecological zones, with Panzhou as an ecological zone and Liupanshui, Hezhang, Dafang, Nayong, Shuicheng and Weining as an ecological zone. ‘Huinongdan No.5’ performed well in high and stable yield. The results showed that Panzhou and Dafang were the best experimental sites with high discrimination and good representativeness. This study provided a theoretical basis for comprehensive evaluation of new maize varieties and selection of experimental sites.

Key words: maize, adaptability, genotype and environment interaction, representativeness, GGE-biplot, high yield, stable yield, ecological zoning