Phenotyping of improved rice lines and landraces for blast and sheath blight resistance

被引：7
|
作者：
Dubey, A. K. [1 ]
Pandian, R. T. P. [1 ]
Rajashekara, H. [1 ]
Singh, V. K. [1 ]
Kumar, G. [1 ]
Sharma, P. [1 ]
Kumar, A. [1 ]
Krishnan, S. Gopala [2 ]
Singh, A. K. [2 ]
Rathour, R. [3 ]
Singh, U. D. [1 ]
机构：
[1] Indian Agr Res Inst, Div Plant Pathol, New Delhi 110012, India
[2] Indian Agr Res Inst, Div Genet, New Delhi 110012, India
[3] CSKHPKV, Dept Biotechnol, Palampur, Himachal Prades, India
来源：
INDIAN JOURNAL OF GENETICS AND PLANT BREEDING | 2014年 / 74卷 / 04期
关键词：
Rice; Magnaporthe oryzae; Rhizoctonia solani; relative lesion height; virulence; resistance;
D O I：
10.5958/0975-6906.2014.00876.1
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Globally, two major fungal diseases of rice, viz, blast caused by Magnaporthe oryzae and sheath blight incited by Rhizoctonia solani Kuhn. occur in all agro-ecosystems resulting in significant yield losses. In the present study, a set of 100 rice lines were evaluated for blast and sheath blight resistance. Twenty seven genotypes were identified to be resistant against M. oryzae isolate (Mo-ni-0066). However, evaluation of these genotypes with highly virulent M. oryzae Karnataka isolate (Mo-si-mnd) revealed that only two genotypes viz., Bhusan San and P1490-03 were resistant. Same set of genotypes were screened for sheath blight resistance. Four entries, viz., BPL7-12, BML27-1, BML 21-1 and Kajarahwa possess high degree of tolerance to sheath blight but none of the rice entries was completely resistant.
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收藏
页码：499 / 501
页数：3
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