[Effects of continuous cropping obstacle on growth of Rehmannia glutinosa].
OBJECTIVE
To study the effects of continuous cropping obstacles on growth of Rehmannia glutinosa.


METHODS
The growth indexes, activity of root ATPase, root activity and mineral nutritional absorption were determined.


RESULTS
Continuous copping decreased growth rate and declined the size of leaves. Activity of root ATPase and root activity were also inhibited.


CONCLUSIONS
The deficiency of source capacity is an important factor to restrain the root development of R. glutinosa with continuous cropping, the decrease of root activity and ATPase activity as well as nutritional stress of potassium and nitrogen are the reasons for the effects of continuous cropping on the growth and development of R. glutinosa.
Yin
Wenjia
W
Institute of Chinese Medicinal Materials, Henan Agriculturae University, Zhengzhou 450002, China.
Du
Jiafang
J
Li
Juan
J
Zhang
Zhongyi
Z
D000042:Absorption; D000251:Adenosine Triphosphatases / Q000378:metabolism; D018517:Plant Roots / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism; D032267:Rehmannia / Q000201:enzymology / Q000254:growth & development* / Q000378:metabolism; D013312:Stress, Physiological
D000251:Adenosine Triphosphatases