Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2017.211.220PermanaHadian MurataKazumasa KashiwagiMegumi YamadaTetsuya KanekatsuMotoki 42017164Background and Objective: Hot water disinfection is an easy and yet effective seed disinfection technique that does not require the use of agricultural chemicals. The typical condition of this method (60°C for 10 min) is not always sufficient to kill certain pathogens; however, the application of higher temperatures represses the germination rates of several rice cultivars, especially indica. This study was conducted to obtain applicable breeding materials that are extremely tolerant under treatment of hot water disinfection to facilitate the use of this useful technique in Japan and other countries in Asia. Materials and Methods: Four modern Japanese cultivars and thirty-nine cultivars of the Japanese rice landrace mini core collection were screened under hot water treatment at several high temperature conditions (60, 65 and 70°C) for 10 min. One-way analysis of variance followed by the Tukey-kramer multiple rang test and a Students t-test were used for statistical analysis. Results: Germination rate results showed that Koshihikari was the most tolerant among the four modern Japanese cultivars. Meanwhile, among the Japanese core collection, Aikoku and Nagoya shiro cultivated in 2013 and 2015 showed the highest germination and seedling emergence rates, which were constantly higher than Koshihikari. Conclusion: The results from this study indicate that in light of their high tolerance under the hot water disinfection method, Aikoku and Nagoya shiro are potential breeding materials that are fruitful for the trait introduction to other rice cultivars.]]>Purevdorj, M. and M. Kubo,200536250259Piernas, V. and J.P. Guiraud,199762611615Butt, A.R., S.I. Yaseen and D. Javaid,201121193196Miche, L. and J. Balandreau,2001Burkholderia vietnamiensis.]]>6730463052Miller, M.R., R.C. Scott, G. Lorenz, J. Hardke and J.K. Norsworthy,20162016Hamada, K., Y. Mitamura, N. Sano, T. Yamada and M. Kanekatsu,201180354359Miyasaka, A., R. Sonoda and M. Iwano,200020003133Yamashita, T., N. Eguchi, R. Akanuma and Y. Saito,20002000711Kashiwagi, M., K. Murata, P. Hadian, T. Yamada and M. Kanekatsu,201786177185Permana, H., M. Kashiwagi, K. Murata, K. Nakaoka, T. Yamada and M. Kanekatsu,20162016pp: 127135Fukushima, A., H. Ohta, R. Kaji and N. Tsuda,201584439444Xiong, Z.Y., S.J. Zhang, B.V. Ford-Lloyd, X. Jin and Y. Wu et al.,20115110501058Bongaarts, J.,200936429852990Kojima, Y., K. Ebana, S. Fukuoka, T. Nagamine and M. Kawase,200555431440Ebana, K., Y. Kojima, S. Fukuoka, T. Nagamine and M. Kawase,200858281291Murata, K., Y. Iyama, T. Yamaguchi, H. Ozaki, Y. Kidani and T. Ebitani,2014Apq1) from the indica rice cultivar 'Habataki' that improves the quality of grains produced under high temperature stress.]]>64273281Adachi, S., Y. Tsuru, M. Kondo, T. Yamamoto and Y. Arai-Sanoh et al.,2010106803811Hatfield, J.L. and J.H. Prueger,201510410Sasaki, T., S. Abe, K. Matsunaga, E. Okamoto and K. Nagano et al.,1993217JMAFF.,20102010Asea, G. and G. Onaga,2010Sasaki, T.,2009111521Tanksley, S.D. and S.R. McCouch,199727710631066