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[Effects of S-3307 on photosynthesis of Ligusticum chuanxiong]
Dong-ping Zhao1, Wen-yu Yang, Xing-fu Chen
1College of Agronomy, Sichuan Agriculture University, Ya'an 625014, China.
Objective:
To study the effects of S-3307 spraying time and density on photosynthetic characteristic of Ligusticum chuanxiong.
Method:
The photosynthetic characteristic of L. chuanxiong under different S-3307 spraying time and density was studied by plot cultivation experiment.
Result:
The content of chlorophyll a and chlorophyll b in leaf increased when the spraying density was 20, 40, 80 mg x L(-1), while the net photosynthetic rate was the maximum. When the spraying density was 160 mg x L(-1), the content of chlorophyll a and chlorophyll as well as net photosynthetic rate were not increased.
Conclusion:
S-3307 spraying can raise the photosynthetic capacity of L. chuanxiong and promote the form of assimilation products.
