Effect of Aqueous Extract of Different Organs and Rhizosphere Soil of Adzuki Bean on Growth of Wheat Seedling

SHI Dongdong; PEI Hongbin; ZHANG Yongqing; CHANG Kaili; QIN Cheng

doi:10.15933/j.cnki.1004-3268.2017.01.004

Abstract：To provide scientific basis for the construction of efficient adzuki bean-wheat rotation mode wheat,seedling were used as the receptor plants to study the allelopathic effects of adzuki bean aqueous extracts from different organs and rhizosphere soil at different concentrations(0,10,40,160 g/L).The results indicated that,the allelopathic effects of adzuki bean aqueous extracts from different organs and rhizosphere soil on the growth of wheat seedlings were different.The effect of root aqueous extracts presented promotion in lower concentrations and inhibition at higher concentrations on the growth of height and young leaf length of wheat seedling,inhibition in low concentrations and promotion at high concentrations on the growth of root length,the number of lateral roots and under-ground dry weigh of wheat seedling;the effect of rhizosphere soil,stem and leaf aqueous extracts presented inhibition on the on the growth of height and young leaf length of wheat seedling,and the effect increased with the increase of aqueous extracts concentration;the effect of rhizosphere soil,stem and leaf aqueous extracts presented inhibition in low concentrations and promotion at high concentrations on the number of lateral roots;the effect of stem aqueous extracts presented promotion in lower concentrations and inhibition at higher concentrations on the root length;the effect of rhizosphere soil aqueous extracts presented promotion on the root length.When the concentration of aqueous extracts were lower(10,40 g/L),the root and rhizosphere soil aqueous extracts increased the activity of superoxide dismutase(SOD) and content of chlorophyll,at the same time,reduced the malonaldehyde(MDA) content and root activity;when the concentration of aqueous extracts were higher(160 g/L),the stem and leaf aqueous extracts inhibited the content of the chlorophyll,significantly increased the activities of SOD,peroxide enzyme (POD).As to the synthetic inhibiting effects of aqueous extracts,the order was leaf ＞ stem ＞ rhizosphere soil ＞ root.