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Journal of Agriculture ›› 2023, Vol. 13 ›› Issue (4): 32-38.doi: 10.11923/j.issn.2095-4050.cjas2022-0043

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Strong Dominant Hybrid New Cotton Cultivar ‘Gang 0996’: Analysis of Its Yield Potential, Yield Stability and Adaptability

ZHAO Shuqi1(), ZHANG Huachong1, YAN Zhenhua1, WU Hongxia2, DAI Baosheng1, LI Qing2, HUANG Xiaoli1, LI Wei1()   

  1. 1 Huanggang Academy of Agricultural Sciences, Huanggang 438000, Hubei, China
    2 Huangmei Agricultural and Rural Bureau, Huangmei 435500, Hubei, China
  • Received:2022-04-07 Revised:2022-08-15 Online:2023-04-20 Published:2023-04-18

Abstract:

The objectives of this study are to understand the yield potential of ‘Gang 0996’, determine the relationship between yield and its components, and clarify main factors affecting the high-yield cultivation of the cultivar. Based on the data from the regional experiment of medium-ripe cotton group in 2016 and 2017 and the production experiment of medium-ripe cotton group in 2018 of the Yangtze River Basin, the variation coefficient, high stability coefficient, correlation analysis and path analysis were used to analyze the yield stability, yield potential, and yield and its components of ‘Gang 0996’. The results showed that ‘Gang 0996’ had good comprehensive yield performance, high yield stability and great yield potential. In the regional test, the increase point rate of ‘Gang 0996’ was as high as 91.50%, and ‘Gang 0996’ showed better environmental adaptability than other cultivars. The results of correlation analysis and path analysis showed that boll number had the largest direct effect on lint yield, and constituted the largest indirect effect through other yield components. According to the yield performance of ‘Gang 0996’, in its cultivation, the contradiction between boll number and planting density should be coordinated. Reasonable planting density, enough number of bolls per plant, stable single boll quality, and proper lint percentage are the main ways to achieve high yield.

Key words: ‘Gang 0996’, yield potential, yield stability, adaptability, yield components, path analysis