Identification of resistance sources against root rot, Macrophomina phaseolina in castor genotypes


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Authors

  • H V Parmar
  • H J Kapadiya
  • C M Bhaliya

Keywords:

Castor, germplasm, Macrophomina phaseolina, resistance, root rot.

Abstract

Castor (Ricinus communis L.) root rot caused by Macrophomina phaseolina is one of the most destructive disease and causes severe losses in yield. Therefore, the present investigation was undertaken to screen different genotypes/varieties for their resistance to root rot which can be used in cultivar improvement. Thirty-two genotypes/varieties of castor were evaluated for locating new and better sources of resistance against root rot under sick plot conditions. Out of that, four genotypes JI-357 (4.95%), JHB-1022 (6.66%), JHB-1013 (17.62%) and SHB-982 (17.62%) regarded as resistant. While seventeen genotypes found moderately resistance with 32.72% to 21.11% disease incidence. None of the entries were completely free from root rot infection and all the genotypes were more or less affected by the disease. The genotypes identified as resistant are of great value and may be exploited in the breeding program for developing high yielding resistant varieties.

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Submitted

2020-11-10

Published

2020-11-10

Issue

Vol. 48 No. 1-2 (2020)

Section

Articles

License

Manuscript will be accepted on the understanding that their content is original and that permission has been received in writing wherever necessary to produce previously published material (including quotations, data and illustrations) and that the manuscript has not been submitted/ accepted for publication elsewhere. Copyright resides with the Plant Protection Association of India.

How to Cite

Parmar, H. V., Kapadiya, H. J., & Bhaliya, C. M. (2020). Identification of resistance sources against root rot, Macrophomina phaseolina in castor genotypes. Indian Journal of Plant Protection, 48(1-2). https://epubs.icar.org.in/index.php/IJPP/article/view/107108