|Table of Contents|

Allelopathy of Root Exudates of Pinellia ternate(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年15
Page:
129-135
Research Field:
Publishing date:

Info

Title:
Allelopathy of Root Exudates of Pinellia ternate
Author(s):
TANG Chenglin1; 2; LUO Fulai1; 2; ZHAO Zhi1; 2; WEI Guangyu1; HANG Ye1; 2; LIU Hongchang1; 2
(1.Agricultural College，Guizhou University，Guiyang，Guizhou 550025；2.Guizhou Key Laboratory of Propagation and Cultivation on Medicinal Plants，Guiyang，Guizhou 550025)
Keywords:
Pinellia ternate; root exudates; allelopathy; autotoxins
PACS:
-
DOI:
10.11937/bfyy.20165024
Abstract:
To research the allelopathic effect of Pinellia ternate root secretions to different acceptor materials with bioassay method,Pinellia ternate root secretions and its different polar components were used as donor materials,and Pinellia ternate,asparagus lettuce,radish,Chinese cabbage and edible amaranth were used as acceptor materials.The results showed that Pinellia ternate root secretions had allelopathic inhibitory effects to Pinellia ternate,asparagus lettuce and radish,and the effective strength was the maximum to Pinellia ternate,followed by asparagus lettuce.The allelopathic effect of Pinellia ternate root secretions had concentration effect,and the allelopathic effect was the strongest with the concentration 1.122 3 g?L-1,and showd allelopathic inhibitory effects to all acceptor materials.The allelochemicals produced by Pinellia ternate roots had a large polar scope,and the autotoxicity strength generated by different polarity parts was different,of which the autotoxicity strength generated by ethyl acetate extracts was the strongest,and could strongly inhibitor Pinellia ternate buldlet to germinate and seedling to grow.Root secretions might be one of the reasons that generates Pinellia ternate continuous cropping obstacle and one of the reasons that low emergence rate and serious sprout of Pinellia ternate in field,allelochemicals produced by Pinellia ternate root secretions had some selectivity,allelopathic effect showed only under suitable concentration and acceptors.

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Last Update: 2017-08-04