导言华盛顿东部的临界低温通常能使一些欧洲葡萄品种在该地栽植。在过去的51年内,每3年中有1年的冬季温度为-21℃或更低一些,每6年中有一年的最低温度为-24到-29℃。使葡萄产生严重冻害的最近两个冬季发生在1978—1979年和1983—1984年。这是本文分析葡萄冻害的基础。抗寒性是葡萄耐受低温的能力,通常由葡萄植株经低温暴露后正常结果力来判定之。 Introduction The critical low temperatures in eastern Washington usually allow some European grape varieties to be planted there. In the past 51 years, winter temperatures of one year every 3 years were -21 ° C or lower, and the lowest temperature of one year every 6 years was -24 to -29 ° C. The last two winters that caused severe freezing damage to grapes occurred in 1978-1979 and 1983-1984. This is the basis of this analysis of grapefruit damage. Cold hardiness is the ability of the grape to tolerate low temperatures, usually determined by the normal fruit power of grape plants exposed to low temperatures.