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RICE CULTURES AND VARIETIES WITH RESISTANCE TO RICE TUNGRO VIRUS (RTV) DISEASE

  • Author:L. YESURAJA AND V. MARIAPPAN

    p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:81, Issue:sep-sep

    DOI: https://doi.org/10.29321/MAJ.10.A01568
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Abstract

                                Investigations were carried out to identify rice cultures resistant to rice tungro virus (RTV) disease. Sixty two rice cultures/varieties were screened for resistance to RTV by exposing to one, two and five viruliferous vector insects [green leafhoppers (GLH), Nephotettix virescens (Distant)] per seedling. Seven cultures and one variety were identified as resistant, when exposed to one viruliferous GLH per seedling. Among these only four were found resistant when the inoculum pressure was increased as two viniliferous GLH per seedling and remaining cultures were moderately resistant. All the eight changed from resistant to moderately resistant, when exposed to five viruliferous GLH per seedling.

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Tamil Nadu Agricultural University
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Tamil Nadu Agricultural University
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ISSN : 0024-9602
eISSN : 2582-5321

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