Effect of Cotton Seeding Growth and Development by Main Allelochemicals in Cotton Humus

doi:10.7668/hbnxb.2013.S1.036

Abstract

Abstract: In this experiment, we studied the effect of cotton seeding growth and development by the three main allelochemicals in cotton humus linoleic acid,palmitic acid and dibutyl phthalate. The results showed that these three substances promote the cotton seeding growth at low concentrations. Promote the growth of cotton shoots and roots,reducing superoxide dismutase and hydrogen peroxide activity reduced the MDA content and improve the root of the root activity and inhibit the growth of cotton in high concentrations. Among them palmitic acid showed the strongest inhibition linoleic acid,followed by,dibutyl phthalate weakest. Three allelochemicals mixed as the proportion in humus (linoleic acid:palmitic acid:dibutyl phthalate=5:6:7),showed greater inhibition, experiments recult indicated there was obvious synergetic effect among these substances.

Key words: Cotton, Humus, Allelochemicals, Allelopathic effects

CLC Number:

S562.01

WANG Zhao, LIU Lian-tao, SUN Hong-chun, ZHANG Yong-jiang, LI Cun-dong. Effect of Cotton Seeding Growth and Development by Main Allelochemicals in Cotton Humus[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(S1): 192-195. doi: 10.7668/hbnxb.2013.S1.036.

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