A study on the rotation of crops among Panax quinquefolium, Perilla frutescens and Coix lacryma-jobi / 中国中药杂志
Zhongguo Zhong Yao Za Zhi
; (24): 12-15, 2005.
Article
en Zh
| WPRIM
| ID: wpr-276655
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To provide evidence for establishing an efficient method of growing Panax quinquefolium by rotation of crops.</p><p><b>METHOD</b>Four-year old P. quinquefolium was cultivated in water and soil cultures. Biological assays were conducted with the aqueous extracts of P. quinquefolius, Fructus Perillae and roots of Coix lacryma-jobi. P. quinquefolium was cultivated in the soil where purple Perilla frutesens and C. lacryma-jobi were grown previously. The effects of rotation were determined.</p><p><b>RESULT</b>The stems, leaves and fibrous roots of Panax quinquefolium contained allelopathic substances. When the concentration of the allelopathic substances exceeded 1g per kg soil, P. quinquefolius could not grow. On the other hand, when the concentration of allelopathic substances fell below 0.2 g per kg soil, the rate of seedling growth was decreased by 25%. When P. quinquefolius was cultivated in the soil in which purple Perilla frutesens had previously grown, or in the soil supplemented with Fructus Perillae, the rates of seedling growth and the yield were raised by 26.8% and 11.5% tively, in comparison with the controls.</p><p><b>CONCLUSION</b>Rotation of Panax quinquefolium and Perilla frutesens was shown to be a good way for the cultivation of the former. During the growing process, application of Fructus Perillae to the soil could further enhance the growth and of Panax quinquefolium.</p>
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Plantas Medicinales
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Intoxicación
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Extractos Vegetales
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Química
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Tallos de la Planta
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Raíces de Plantas
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Hojas de la Planta
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Germinación
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Perilla
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Coix
Idioma:
Zh
Revista:
Zhongguo Zhong Yao Za Zhi
Año:
2005
Tipo del documento:
Article