|Table of Contents|

Detection and Allelopathy of Continuous Cropping Eggplant Rhizosphere Compounds

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年10
Page:
17-24
Research Field:
Publishing date:

Info

Title:
Detection and Allelopathy of Continuous Cropping Eggplant Rhizosphere Compounds
Author(s):
WANG Ruhua1HAO Yanfei2ZHANG Qifa1ZHANG Jinyu1
(1.College of Horticulture and Landscape,Heilongjiang Bayi Agricultural University,Daqing,Heilongjiang 163319;2.Changchun Polytechnic,Changchun,Jilin 130000)
Keywords:
eggplantcontinuous croppingallelopathyrhizosphere soil
PACS:
-
DOI:
10.11937/bfyy.20213996
Abstract:
The rhizosphere soil of rotation and continuous eggplant at different growing stages was used as material,the substance compositions of rhizosphere soil of eggplant and the allelopathy effect of 3 typical chemical compositions on eggplant,cucumber and tomato were studied through a CG-MS analysis and bioassay method,in order to further clarify the possible mechanism of continuous cropping obstacles,provide reference to alleviate the continuous cropping obstacle.The results showed that eleven,eleven,eight and seven chemical compositions were identified from self-rooted eggplant rhizosphere soil and grafted eggplant rhizosphere soil of first crop and continuous cropping at squaring stage,respectively.Similarity,seven,eight,eleven,and ten chemical compositions were identified from different rhizosphere soil at fruiting period,respectively.Above chemical compositions include esters,alcohols,hydrocarbons,fatty acids,ethers,ketones and benzene.Among them,there were abundant kinds of esters.The allelopathy effect of typical chemical compositions on eggplant,cucumber and tomato showed that,at low concentration,diisobutyl phthalate promoted the growth of seedlings,while weakened or slightly inhibited the growth of seedlings at high concentration;dioctyl phthalate had a strong allelopathic inhibitory effect on tomato seedlings;N-heptadecyl acetate promoted the growth of cucumber and tomato seedlings.

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Last Update: 2022-07-01