Differences in tuber rot development for North American clones of Phytophthora infestans

被引：77

作者：

Lambert, DH ^{[1
]}

Currier, AI ^{[1
]}

机构：

[1] AROOSTOOK FARM,PRESQUE ISLE,ME 04769

来源：

AMERICAN POTATO JOURNAL | 1997年 / 74卷 / 01期

关键词：

D O I：

10.1007/BF02849171

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The relative aggressiveness of Phytophthora infestans clones in potato tubers was compared in three trials using 7 to 24 isolates of 2 to 4 clones. Visible rot developed slowly at 13C with isolates of the US-1 genotype, the only significant clone found in North America prior to 1979, but substantially faster with most isolates of the newer clonal genotypes US-6, US-7 and US-8. Certain US-7 isolates were similar to US-1, and US-6 isolates also had a broad range of aggressiveness. Secondary infection by Fusarium sp. increased rot development in many instances, but this effect was not clone-related. Differences in rot development may affect potato storage or late blight disease transmission.

引用

页码：39 / 43

页数：5

共 10 条

[1] INFECTIVITY TO POTATO, SPORANGIAL GERMINATION, AND RESPIRATION OF ISOLATES OF PHYTOPHTHORA-INFESTANS FROM METALAXYL-SENSITIVE AND METALAXYL-RESISTANT POPULATIONS [J].