Allelopathy of Garlic Bulb Aqueous Extracts on Cucumber Seedling Growth

doi:10.7668/hbnxb.2008.S2.010

Abstract

Abstract: Effect of garlic bulb aqueous extracts on cucumber germination, seedling growth and physiological index were studied by bioassay tests and pot plant ing. The results showed that inhibition of cucumber shoot length and root length were significantly increased with increasing extract concentrations, while inhibition of germination rate was pro?? nounced at 40mg/ mL. Aqueous extracts promoted cucumber seedling growth, increased contents of soluble sugar, protein, Vc and chlorophyll and improved POD, SOD and CAT act ivities at the range of 20 mg/ mL,while high extract concentra?? tions inhibited cucumber seedling growth, POD, SOD and CAT activities and decreased contents of soluble sugar, protein, Vc and chlorophyll. The contents of MDA presented V with extract concentrat ions which were decreased to 13. 7% at 10 mg/ mL. Garlic bulb aqueous extracts were benefit for cucumber seedlings at the range of 20 mg/ mL.

Key words: Cucumber ( Cucumis sativus L. ) , Allelopathy, Garlic ( Allium sativum L) , Continuous cropping obstacle

CLC Number:

S633.4

DONG Lin-lin, LI Zhen-dong, WANG Qian. Allelopathy of Garlic Bulb Aqueous Extracts on Cucumber Seedling Growth[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S2): 47-50. doi: 10.7668/hbnxb.2008.S2.010.

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