野生实葶葱凋落叶片对9种作物种子萌发的影响

Effects of the Falling Leaves of Wild-type Allium galanthum on Seed Germination in Nine Crops

为了探讨野生实葶葱凋落叶片对作物种子萌发的影响,以新疆栽培的9种作物种子,其中包括化感作用研究主要的受体植物种子作为本研究试验材料,采用培养皿滤纸法研究不同浓度实葶葱凋落叶片水浸提液对种子萌发的影响。针对存在相对抑制(促进)率的显著性差异水平的发芽指标进行化感效应指数计算。结果表明,实葶葱凋落叶片浸提液浓度在0~10 mg/mL时对油白菜和白菜种子萌发有促进作用,对小麦种子萌发具有抑制作用,而对其余6种种子具有双重效应,证明实葶葱凋落叶片具有化感作用,实葶葱化感作用因作物不同而作用于种子萌发的不同阶段。本研究结果为实葶葱与其他作物合理间套作及轮作倒茬制度建立提供了理论依据。

To investigate the effects of the falling leaves of wild Allium galanthum on the seed germination,nine crops seeds cultivated in Xinjiang including the main recipient plants of allelopathic study were used as research materials by using the method of culture dishes and filter paper.Based on the significant difference of relative inhibition(Promotion) rate to determine the allelopathic index,the results showed that the aqueous extracts of the falling leaves from Allium galanthum at concentrations of 0~10 mg/mL promoted the germination of Brassica chinensis and Brassica pekinensis seeds and inhibited Triticum aestivum seeds germination.However,the dual effect on the other six crops seeds germination was appeared at concentrations of 0~10 mg/mL.It indicated that the falling leaves of Allium galanthum has the allelopathic effect,which affected different stages of seed germination due to different crops.The results of this study provide a theoretical basis for the establishment of a reasonable intercropping and rotation cropping systems for Allium galanthum and other crops.