|Table of Contents|

Correlation Analysis Between Norganic Elements N,P,K Content and the Severity of Korla Pear Valsa Canker

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年18
Page:
27-34
Research Field:
Publishing date:

Info

Title:
Correlation Analysis Between Norganic Elements N,P,K Content and the Severity of Korla Pear Valsa Canker
Author(s):
TANG Li1; ZHANG Wangbin1; 2; LI Chunyan3; SHAO Yanhui4
(1.College of Plant Science，Tarim University，Alar，Xinjiang 843300；2.Key Laboratory of Integrated Management of Agricultural Pests in Southern Xinjiang，Tarim University，Alar，Xinjiang 843300；3.Xinjiang Career Technical College，Kuitun,Xinjiang 833200；4.Agricultural Science Research Institute of the First Division，Alar，Xinjiang 843300)
Keywords:
mineral element; Valsa canker of Korla pear; correlation; disease resistance
PACS:
S 436.6
DOI:
10.11937/bfyy.20224743
Abstract:
Taking Korla pear trees and orchards with different degrees of disease as test materials，the N，P，K content in the phloem of annual branches and the N，P，K content in the soil were measured.The Korla pear rot pathogen was inoculated on N，P，K media with different concentration gradients.Colony morphology，growth rate，and spore production were observed and recorded.The correlation between N，P，K content and disease degree was analyzed.The relationship between N,P,K and Korla pear rot disease were studied,in order to provide reference for the comprehensive prevention and control of Korla pear rot disease.The results showed that different concentrations of N，P，K had an impact on the growth of the colony.The growth rate of the fungus decreases with the increase of the N content.With the increasing of the P and concentration，the growth rate of the pathogens first increases and then decreases.The incidence of Valsa canker of Korla pear was negatively correlated with soil K content and tree K content，and positively correlated with soil and tree N/K，P/K ratio.The higher the ratio of N/K,P/K，the more serious the occurrence of Valsa canker.Orchard management should increase the application of nitrogen and potassium fertilizers，and pay attention to the application of organic fertilizers，which can reduce the incidence of Korla pear Valsa canker.

References:

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Last Update: 2023-11-23