Testing of Rice Stocks for Their Survival of Winter Cold
Testing of Rice Stocks for Their Survival of Winter Cold作者机构：Kataseyama 3-10-6 Fujisawa 2510033 Japan
出 版 物：《Rice science》 (水稻科学（英文版）)
年 卷 期：2018年第25卷第2期
页 面：117-120页
核心收录：
基 金：provided by the courtesy of Dr. Rieko SHISHIDO Associate Professor Faculty of Bio-Resource Science Nippon University Kameino Japan
主 题：rice stock cold Nipponbare temperature winter
摘 要：Rice cultivation is considered to be initiated by vegetative propagation of sprout from wild perennial stocks. To test whether any presently cultivated rice cultivar can survive the winter cold or not, rice stocks of several cultivars including indica and japonica types were placed in a shallow pool from October to April in 2015–2016 and 2016–2017. During the coldest period of the winter, the bases of the stocks were placed 5–6 cm below the surface of water, where temperatures ranged from 3 ℃ to 5 ℃, while the surface was frozen for two or three times and covered with snow for a day. Only one cultivar, Nipponbare, a japonica type, survived the winter cold and regenerated sprouts in the end of April or early May. A possibility to develop perennial cultivation of rice or perennial hybrid rice is discussed.
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