[Evaluation on germplasm resources of main production area of Artemisia annua in China].
OBJECTIVE
To evaluate and select excellent germplasm resources of Artemisia annua L., providing basic data for data base and breeding of A. annua.


METHODS
Seventy-two germplasms of A. annua, which were collected from main production areas, were planted in germplasm resources garden in Jingxi and Nanning under the same conditions. The samples were gathered in the squaring stage. Artemisinin was extracted by supersonic wave and determined by ultraviolet spectrophotometry.


RESULTS
The leaf's yield and the content of artemisinin in the samples of different germplasms were varied significantly. Effect of environment on artemisinin content was more than that of hereditary factors. The content of artemisinin was different when the same material of A. annua grew in different place. The content of artemisinin in next year's plant was decreasing.


CONCLUSIONS
Seven germplasms from south of China have been selected, their content of artemisinin was above 0.9% and calculated yield was more than 2250 kg x hm(-2). The content of artemisinin has been affected by hereditary factors and variation of the growth environment.
Wei
Shu-Gen
SG
Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China.
Xiao-Jun
M A
MA
Feng
Shi-Xin
SX
Huang
Rong-Shao
RS
Dong
Qing-Song
QS
Yan
Zhi-Gang '
ZG
Huang
Qiu-Yin
QY
D031172:Artemisia annua / Q000254:growth & development* / Q000378:metabolism*; D037621:Artemisinins / Q000378:metabolism; D002681:China
D037621:Artemisinins; C031327:artemisinin