Identifi cation of Blast-Resistant Varieties from Landrace, Improved and Wild Species of Rice

Authors

  • Abdu Salih Afar Pastoral and Agro-Pastoral Research Institute, Afar, Ethiopia.
  • Tanee Sreewongchai Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
  • Prapa Sripichitt Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
  • Nonglak Parinthawong Faculty of Agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand.

Keywords:

blast disease, identifi cation, landrace, resistance, rice

Abstract

An experiment was conducted to identify rice varieties resistant to blast disease. Samples of 311 genetically diversifi ed varieties/accessions comprised of landrace (263), improved (43) and wild (5) rice varieties/accessions were provided by the National Rice Gene Bank of Thailand. The screening for blast at the seedling stage was done using 29 diversifi ed blast isolates. The blast isolates were collected from seven provinces (Phitsanulok, Ubon Ratchathani, Khon Kean, Chiang Rai, Nong Khai, Chaiyaphum and Udon Thani) of Thailand. The results indicated a total of 35 varieties/accessions (25 landrace, 9 improved and 1 wild) were resistant to all tested blast isolates. The 25 resistant landrace varieties were collections from Northern (10), Northeastern (9) and Southern (6) Thailand. Moreover four of the resistant landrace varieties (GS23107, GS19769, GS20874 and GS23774) were highly resistant with no symptom of the disease. From this study, it can be suggested that the resistant landraces from the Southern, Northern and Northeastern regions could be used as sources of resistant varieties in designing future breeding programs aimed at developing disease-resistant genotypes.

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Published

2013-02-28

How to Cite

Salih, Abdu, Tanee Sreewongchai, Prapa Sripichitt, and Nonglak Parinthawong. 2013. “Identifi Cation of Blast-Resistant Varieties from Landrace, Improved and Wild Species of Rice”. Agriculture and Natural Resources 47 (1). Bangkok, Thailand:1-7. https://li01.tci-thaijo.org/index.php/anres/article/view/243022.

Issue

Vol. 47 No. 1 (2013): January-February

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.