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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (5): 1-6.doi: 10.11924/j.issn.1000-6850.casb2024-0177

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Stability Analysis of A New Japonica rice ‘Yunjing 37’ with Good Eating Quality

ZHAO Guozhen1(), LIU Weihua1, LIU Siyu2, DONG Linbo3, LI Lindong4, CHEN Yumin1   

  1. 1 Institute of Food Crops, Yunnan Academy of Agricultural Science, Kunming 650205
    2 Baishijiang Street Economic Management Service Center of Qilin County, Qujing, Yunnan 655000
    3 Qilin County Agricultural Technology Extension Center, Qujing, Yunnan 655000
    4 Sanbao Street Economic Management Service Center of Qilin County, Qujing, Yunnan 655000
  • Received:2024-03-13 Revised:2024-06-15 Online:2025-02-15 Published:2025-02-11

Abstract:

The yield and agronomic traits of rice are affected by the cultivation environment and their adaptability, and the varieties with wide adaptability are less affected by the cultivation environment. This study aims to clarify the adaptability of ‘Yunjing 37’, a new japonica rice variety with good eating quality. The stability of yield and agronomic traits of ‘Yunjing 37’ and control varieties were analyzed by AMMI model, which planted in 6 sites in Yunnan Province for two consecutive years. All traits showed highly significant differences between varieties and environment, along with significant interaction effects between varieties and environment. Based on the stability parameters ASV, Di, WAASBi, the grain number, seed setting, 1000-weight, plant height, length and angle of the flag leaf, which were closely related to yield and plant type, ‘Yunjing 37’ showed the best stability among the four varieties. This indicates that different environmental conditions have relatively little influence on the yield and plant type of ‘Yunjing 37’. Therefore, ‘Yunjing 37’ has wide adaptability and is suitable for widespread application in Yunnan japonica rice area.

Key words: good eating quality, rice, japonica rice, ‘Yunjing 37’, stability, AMMI model, agronomic traits, stability analysis, adaptability