›› 2018, Vol. 30 ›› Issue (8): 1355-1362.DOI: 10.3969/j.issn.1004-1524.2018.08.12

• Horticultural Science • Previous Articles     Next Articles

Prediction of vegetable soybean yield with fluorescence, spectra, photosynthetic parameters after fertilization

HU Zhihui1, WANG Yanjie1, ZHANG Liqin2   

  1. 1. College of Life Sciences, Jianghan University, Hubei Province Engineering Research Center for Legume Plants, Wuhan 430056, China;
    2. Journal of Changjiang Vegetables, Wuhan 430023, China
  • Received:2018-02-03 Online:2018-08-25 Published:2018-08-28

Abstract: The parameters of chlorophyll fluorescence, spectrum, photosynthesis and yield of four vegetable soybean species of Chunfengjizao, M-3, M-4 and Lvbaoshi were measured at flowering, podding, seed filling stages. And three stepwise regression analysis equations of different periods between chlorophyll fluorescence, spectrum, photosynthetic parameters and yield were performed, respectively. The results showed that the best regression equation was Y=2 188.29+5 044.33X2+6.80X4-8 916.41X8+14 236.59X10-0.04X12+2 283.78X15 at podding period. These results provided some useful value for forecasting yield at an early period. Therefore, in the practical production when these parameters of chlorophyll fluorescence, spectrum and photosynthesis at podding period were determined, the soybean yield could be forecasted by the equation.

Key words: vegetable soybean, yield, spectrum, fluorescence, photosynthesis, stepwise regression analysis

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