蜀葵种子水浸液对西瓜和枸杞的化感作用

研究蜀葵种子水浸液对西瓜和枸杞的化感作用，为植物化感作用的理论研究提供参考。采用生物测定法，用不同浓度的蜀葵种子水浸液处理西瓜、枸杞的种子和幼苗，研究其化感作用。结果表明：（1）不同浓度的蜀葵种子水浸液对西瓜种子萌发和幼苗生长均有不同程度的抑制作用，对枸杞幼苗的苗高、鲜重有促进作用；（2）当蜀葵种子水浸液浓度为0.005 g/mL、0.010 g/mL时对枸杞种子萌发和幼苗生长表现为化感促进作用，浓度为0.020 g/mL时对枸杞种子的发芽率、幼苗根长、根鲜重表现为化感抑制作用。综上，蜀葵种子水浸液可抑制西瓜种子的萌发和幼苗的生长，对枸杞幼苗的苗高、鲜重的增加有促进作用。

Allelopathy of Water Extracts from Seeds of Althaea rosea L.Cavan. on Watermelon and Chinese Wolfbeery

Allelopathy of water extracts from seeds of Althaea rosea on watermelon and Chinese wolfberry were examined,with the objective of providing the reference for the theoretical study of allelopathy.By using the techniques of laboratory bioassay,the effects of water extracts from seeds of Althaea rosea on seeds germination and seedlings growth of watermelon and Chinese wolfberry were studied.The results showed that treated with different concentrations water extracts from seeds of Althaea rosea on seeds germination and seedlings growth of watermelon could be inhibited,and on height,fresh weigh of Chinese wolfberry could be promoted;when the concentration of water extracts was 0.005 g/mL,0.010 g/mL,the water extracts from seeds of Althaea rosea exhibited significant promotion effects on seeds germination and seedlings growth of Chinese wolfberry,and when the concentration of water extracts was 0.020 g/mL,the water extracts from seeds of Althaea rosea exhibited significant inhibition effects on germination of seed,length of main root and fresh weight of root of Chinese wolfberry.