Journal of Tianjin Agricultural University ›› 2022, Vol. 29 ›› Issue (2): 7-12.doi: 10.19640/j.cnki.jtau.2022.02.002

• Researches and Scientific Notes • Previous Articles     Next Articles

Study on correlation between juice yield and vein color of sweet sorghum

Zhao Bo, Tong Xiaopeng, Wu Wenwen, Zhang Nan, Wang Weixian, Pei ZhongyouCorresponding Author   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2021-01-12 Online:2022-06-30 Published:2022-07-05

Abstract: Sweet sorghum is widely concerned as a green energy crop and high-quality feed crop because of its rich stem juice, high sugar content and high biological yield. In this experiment, 411 F3 generation population obtained by crossing sorghum ‘Xinliang 52’ and sweet sorghum ‘07-27’ was used as the material. The genetic variation, correlation and path analysis of stem juice yield and vein color were carried out using Excel 2016 and SPSS 19.0 to determine the linear relationship between juice yield and vein color. The results showed that the coefficients of variation of stem juice yield, biological yield and stem fresh weight were larger, and the yield of stem juice, had significant positive correlation with fresh weight of stem and biological yield. And no significant cowelation with other traits. Through the analysis of juice yield and 5 agronomic characters, the direct contribution order of each trait to juice yield was plant height>stem fresh weight>biological yield>internode number>brix. The direct contribution order of each trait to seam fresh weight was juice yield>biological yield>plant height>brix>internode number. With biological yield as dependent variable, the order of direct contribution of each trait to yield was plant height>stem fresh weight>juice yield>brix>internode number. As the range of ∆E changes, two different linear equations y=–4.364 1x+661.55 and y=–2.213 2x+582.33 were obtained.

Key words: sweet sorghum, juice yield, vein color, chromatic aberration method

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