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Primary Research of the Nematicidal Acitivity of ‘Marigold No.1’ Plant on Root-knot Nematode

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年20
Page:
46-50
Research Field:
Publishing date:

Info

Title:
Primary Research of the Nematicidal Acitivity of ‘Marigold No.1’ Plant on Root-knot Nematode
Author(s):
GAO Bo; HAO Yongli; HU Haibo; WANG Xuejie; LIU Qingpeng
(Chifeng Academy of Agricultural and Animal Husbandry Sciences，Chifeng，Inner Mongolia 024300)
Keywords:
marigold; different parts; root-knot nematode; nematicidal activity
PACS:
-
DOI:
10.11937/bfyy.20190503
Abstract:
With ‘Marigold No.1’ and different parts of the plant as test materials,the nematicidal acitivity of marigold on root-knot nematode was studied by in vitro bioassay and pot experiment，so as to evaluate its control efficiency.The results showed that the ‘Marigold No.1’ plant had strong nematicidal activity，and 1.400% of the extracts treated the nematode with a corrected mortality rate of 94.51%.The virulence equation was y=-0.524+2.045x,r=0.986,LC50=1.803 mg?mL-1.The inhibitory effects of plant extracts on root-knot nematodes were different in different parts.The nematicidal activity were flower，root，stem and leaf (the difference between flower and root inhibition effect were not significant (P<0.05)).1.400% of the ground pulverized material could significantly reduce the density of insects in the soil，and the rootworm inhibition rate was 79.16% obtained by pot experiment.The above results indicates that the ‘Marigold No.1’ plant additive had certainly feasible and effective in controlling root-knot nematode.

References:

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Last Update: 2019-10-30