FIELD-RESISTANCE TO LATE BLIGHT OF 4 INDIAN POTATO CULTIVARS

被引：8
|
作者：
SINGH, BP
BHATTACHARYYA, SK
机构：
[1] Division of Plant Pathology, Central Potato Research Institute, Shimla, 171 001, H.P.
来源：
POTATO RESEARCH | 1995年 / 38卷 / 02期
关键词：
ZOOSPORE; PHYTOPHTHORA INFESTANS; RESISTANCE COMPONENTS; AREA UNDER DISEASE PROGRESS CURVE; SOLANUM TUBEROSUM L;
D O I：
10.1007/BF02357930
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The nature and extent of field resistance to late blight. and the effect of plant age and inoculum level on resistance components and host attributes, were studied on the Indian potato cultivars Kufri Chandramukhi, Kufri Jyoti. Kufri Badshah and Kufri Sherpa. Latent period, infection efficiency, colonization rate and sporulation were found to operate in cvs Kufri Jyoti and Kufri Badshah. Based on component analysis cv. Kufri Jyoti was similar to or sometimes more resistant than Kufri Badshah. No correlation was observed between any of the host attributes and resistance to late blight, except that the erect canopy of Kufri Badshah was associated with its slow blighting rate. At high inoculum. colonization rate and total sporulation were increased but infection efficiency was decreased.
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页码：171 / 178
页数：8
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