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Screening methods and sources of resistance to rust and late leaf spot of groundnut. Information Bulletin no. 47

OAR@ICRISAT

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Relation http://oar.icrisat.org/3477/
IBE047
 
Title Screening methods and sources of resistance to rust and late leaf spot of groundnut. Information Bulletin no. 47
 
Creator Subrahmanyam, P
McDonald, D
Waliyar, F
Reddy, L J
Nigam, S N
Gibbons, R W
Rao, V R
Singh, A K
Pande, S
Reddy, P M
Rao, P V S
 
Subject Groundnut
 
Description Rust and late leaf spot are the most serious fungal diseases of groundnut worldwide, and can cause severe yield losses,
particularly when they occur together. This Bulletin describes simple and effective field screening methods to identify
genotypes with resistance to these diseases. Production of inoculum, sowing and inoculation of test genotypes, and disease
assessment in the field, using a 1-9 scale, are discussed. These methods were used dUring 1977-89 to evaluate ICRISAT's
world collection of over 12 000 groundnut accessions. Several reliable sources of resistance to rust and/or late leaf spot
were identified, and are listed here-124 lines resistant to rust, 54 lines resistant to late leaf spot, and 29 lines with
combined resistance. An extensive bibliography is also presented, for those who require more detailed information on
specific aspects of the diseases.
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 1995
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/3477/1/PNABX110.pdf
Subrahmanyam, P and McDonald, D and Waliyar, F and Reddy, L J and Nigam, S N and Gibbons, R W and Rao, V R and Singh, A K and Pande, S and Reddy, P M and Rao, P V S (1995) Screening methods and sources of resistance to rust and late leaf spot of groundnut. Information Bulletin no. 47. Technical Report. International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh, India.