[Comparison of net photosynthetic rate changes in different species of Siraitia grosvenorii in late growth period].
OBJECTIVE
To analyze the relationship between the net photosynthetic rate and the quality of Siraitia grosvenorii.


METHODS
Taken two species of S. grosvenorii: Yongqing No. 1 and Yehong No. 1 as the experimental material, CI-310 portable photosynthesis system was used to test the net photosynthetic rate in the late growth period; HPLC was used to determine momordica-glycosides V.


RESULTS
Light compensation point of Yongqing No. 1 was lower than that of Yehong No. 1 and the light saturation point was identical, the weight of dried fruit and the content of momordica-glycosides V of Yongqing No. 1 were higher than those of Yehong No. 1 at the late growth period.


CONCLUSIONS
The net photosynthetic rate can be used as an important subservient index to assess the quality of S. grosvenorii.
Zhai
Yongjin
Y
Forestry College of Guangxi University, Nanning 530005, China.
Ma
Xiaojun
X
Lai
Jiaye
J
Wang
Haiying
H
Ma
Jing
J
Mo
Changming
C
D019662:Cucurbitaceae / Q000254:growth & development* / Q000378:metabolism; D010788:Photosynthesis