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.

引用

页码：499 / 501

页数：3

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