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SCREENING OF BENGAL GRAM ACCESSIONS FOR RESISTANCE TO PULSE BEETLE

  • Author:Y.S. JOHNSON THANGARAJ EDWARD and K. GUNATHILAGARAJ

    p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:80, Issue:apr-apr

    DOI: https://doi.org/10.29321/MAJ.10.A01653
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Abstract

                                Two hundred bengal gram accessions (Cicer arietinum L.) were screened for their resistance to Callosobruchus maculatus (F) by Free Choice Test. The number of eggs laid varied from 4 to 60. The adult emergence ranged between one in 11 and 27 in 5 accessions. Hundred per cent survival was observed in four accessions (Shahkot- 2, P-1675, RFG 30 and NEC-1592) as against only five per cent survival in RBH 99 and RC 109. Ovipositional preference was found not related with the suitability of the accession for further development. C. maculatus took 25 to 41 days for development. Based on the suitability index, 22 accessions were categorised as resistant, 40 as moderately resistant, 109 as susceptible and 29 as highly susceptible to C. maculatus.

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ISSN : 0024-9602
eISSN : 2582-5321

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