Autotoxicity of Aqueous Extract of Hot Pepper Plant on Seed Germination of Hot Pepper and Tomato

doi:10.7668/hbnxb.2009.03.027

Abstract

Abstract: The effects of aqueous extracts from different parts of hot pepper were determined by means of bioassay in laboratory. The results showed that the influences of aqueous extracts of hot pepper on seed germination of hot pepper and tomato were different with different donor parts,concentrations and receptors,and the aqueous extracts from hot pepper had autotoxicityon seed germination of hot pepper and tomato. The seed germination of hot pepper and tomato was inhibit2 ed by aqueous extracts from whole plant,root,stem and leaf of hot pepper. With increasing concentration of aqueous ex2 tracts,the inhibiting effects on vegetable seed germination expressed strong,which indicates that the aqueous extracts have strong autotoxic effects on seed germination of pepper and tomato. The autotoxic effect order of aqueous extracts from dif2 ferent parts of hot pepper on seed germination of hot pepper was leaf > root > stem > plant,and autotoxic effect order of aqueous extracts from different parts of hot pepper on tomato seed germination was leaf > plant > root > stem,and which indicates that the autotoxic effect of leaf aqueous extract was the strongest.

Key words: Hot pepper, Aqueous extract, Allelopathy, Autotoxicity, Seed germination

CLC Number:

S641.3

WANG Guang yin, HAN Shi dong, XIE Yu hui, SUN Xiao na, ZHoU Xiu mei,. Autotoxicity of Aqueous Extract of Hot Pepper Plant on Seed Germination of Hot Pepper and Tomato[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(3): 123-127. doi: 10.7668/hbnxb.2009.03.027.

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