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Inheritance Analysis of Powedery Mildew Resistance in Pumpkin(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年14期
Page:
31-33
Research Field:
Publishing date:

Info

Title:
Inheritance Analysis of Powedery Mildew Resistance in Pumpkin
Author(s):
LIU Wen-jun1; 2; WANG Ri-sheng1; HUANG Feng-chan1; ZHANG Man1; FAN Ai-li1; ZHOU Jian-hui1
1.Vegetable Research Institute,Guxangxi Academy of Agricultural Sciences,Nanning，Guangxi 530007；2.Guangxi Crop Genetic Improvement and Biotechnology Key Lab,Naning,Guangxi 530007
Keywords:
pumpkin; powdery mildew; resistance inheritance
PACS:
S 641.2；S 436.429
DOI:
-
Abstract:
The experiment was implemented in Vegetable Research Institute of Guangxi Academy of Agriculture Sciences in October 2012.Taking the resistant and susceptible parent of inbred line of ‘806’ and ‘810’as materials,which identified by natural field and artificial inoculation identification,both of parents were crossed and seeds of the filial were produced,then powdery mildew on each plant in reciprocal F1 and F2was investigated finally the data was subjected to Chi square analysis for heterogeneity.The results showed that the disease index (DI) of reciprocal F1was close to DI of ‘810’,but higher than ‘806’；the segregation ration of reciprocal F2 were 1∶2.73 and 1∶2.72 respectively,and both reached significance level.It was presumed that the inheritance of powdery mildew for Miben pumpkin was conferred by a single recessive gene.

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Last Update: 2014-08-10