Screening methods and further sources of resistance to peanut rust

    Subrahmanyam, P and Gibbons, R W and Nigam, S N and Rao, V R (1980) Screening methods and further sources of resistance to peanut rust. Peanut Science, 7 (1). pp. 10-12.

    [img] PDF
    Restricted to ICRISAT users only
    Download (381kB) | Request a copy
    [img] PDF ((Abstract) in Proceedings of American Peanut Research and Education Association 10:64 (1978)) - Published Version
    Restricted to ICRISAT users only
    Download (246kB) | Request a copy

    Abstract

    creened for resistance to rust at ICRISAT, India. Preliminary field screening was done during the 1977 rainy season when a natural epidemic of rust was in progress. The cultivars or lines which were rated between 2 and 5 on a Spoint scale during this screening were further tested during the 1977/78 dry season employing an infector row system of susceptible cultivars and spreader plants systematically interplanted with the test material. High relative humidity was maintained in the field by operating an overhead sprinkler irrigation system. Percentage leaf area damaged on the test material was estimated at 10 day intervals from approximately 90 days after their emergence until harvest. Each entry was also assessed on a scale proposed by Mazzani and Hinojosa. Two land races, NC.Ac. 17090 and EC. 76446 (292) were more resistant than either PI. 259747 or PI. 298115 which were reported resistant by other workers. In addition, NC.Ac. 17030, NC.Ac. 17132, NC.Ac. 17129, NC. Ac. 17135 and NC.Ac. 17124 were moderately resistant. Four cultivars or lines with different levels of resistance in the field were tested in the greenhouse at three different stages in development. The results indicated that resistance increased as the plants aged.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Groundnut
    Depositing User: Siva Shankar
    Date Deposited: 08 Sep 2011 09:06
    Last Modified: 28 Feb 2012 06:35
    URI: http://oar.icrisat.org/id/eprint/1125
    Official URL: http://dx.doi.org/10.3146/i0095-3679-7-1-3
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
    Links:
    View Statistics

    Actions (login required)

    View Item View Item
    OAR@ICRISAT is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.