生姜浸提液对西瓜和苦瓜的化感作用

以不同浓度的生姜根茎浸提液为供体,以早佳8424西瓜和大白苦瓜为受体,采用培养皿滤纸法,初步研究了不同浓度生姜根茎浸提液对西瓜和苦瓜的化感作用。试验结果表明,当生姜根茎浸提液在2.5~20 g/L的浓度范围内,对西瓜和苦瓜的种子萌发和幼苗生长均具有促进作用,在低浓度时促进作用较为明显,随着浓度的升高促进作用减弱。当生姜浸提液浓度为2.5 g/L时,西瓜幼苗生长最好;浸提液浓度为5~10 g/L时,苦瓜幼苗生长最好。

Allelopathy Effect of Ginger Rhizome Extract on Watermelon and Bitter Gourd

We studied the allelopathy effect of ginger rhizome extract with different concentrations on seed germination and seedling growth of watermelon cultivar Zaojia 8424 and bitter gourd cultivar Dabikugua by using the culture plate and filter paper culture bioassay method. The results showed that 2.5-20 g/L ginger rhizome extract promoted the seed germination and seedling growth of watermelon and bitter gourd, and at lower concentration, the promoting effect of ginger rhizome extract was greater than that of the higher concentration, in addition, the promoting effect weakened gradually as the concentration increased. 2.5 g/L was the most beneficial concentration for watermelon seedling growth, while 5-10 g/L was the most advantageous concentration for bitter gourd seedling growth.