POPULATION DENSITY AS A CRITERION FOR EVALUATING VARIETAL RESISTANCE OF CASTOR (Ricinus communis LINN.) TO JASSID INFESTATION

M. STEPHEN DORAIRAJ; V. SAVITHRI and S. G. AIYADURAI

doi:https://doi.org/10.29321/MAJ.10.A03924

Research Article | Open Access | Peer Review

POPULATION DENSITY AS A CRITERION FOR EVALUATING VARIETAL RESISTANCE OF CASTOR (Ricinus communis LINN.) TO JASSID INFESTATION

M. STEPHEN DORAIRAJ V. SAVITHRI and S. G. AIYADURAI

Volume : 50

Issue: Feb-feb

Pages: 100 - 102

DOI: https://doi.org/10.29321/MAJ.10.A03924

Published: November 03, 2023

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Abstract

Investigations were taken up to assess the degree of relationship of the jassid population with the varied types of waxy bloom coatings and stem colours of castor. Jassid population counts were recorded on a total of seventy- six varieties of castor maintained at the Agricultural Research Institute, Coimbatore during 1961-62 monsoon season.

DOI

https://doi.org/10.29321/MAJ.10.A03924

Pages

100 - 102

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© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

POPULATION DENSITY AS A CRITERION FOR EVALUATING VARIETAL RESISTANCE OF CASTOR (Ricinus communis LINN.) TO JASSID INFESTATION

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POPULATION DENSITY AS A CRITERION FOR EVALUATING VARIETAL RESISTANCE OF CASTOR (Ricinus communis LINN.) TO JASSID INFESTATION

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ISSN : 0024-9602

eISSN : 2582-5321

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