水稻耐冷性研究 Ⅰ.稻冷害类型及耐冷性鉴定评价方法概述

Studies on cold tolerance of rice, oryza sativa L. Ⅰ.Description on types of cold injury and classifications of evaluation methods on cold tolerance in rice

本文是水稻耐冷性研究的第一部分 ,介绍水稻冷害的类型及耐冷性鉴定评价方法。水稻的冷害类型可以分为延迟型冷害和障碍型冷害 ;也可以按照低温冷害发生的时期来划分成芽期冷害、苗期冷害、孕穗期冷害、开花期冷害和灌浆期冷害。较系统地介绍了水稻芽期、苗期、孕穗期、开花期耐冷性的多种鉴定评价方法及其评价指标和自然条件下的耐冷性鉴定方法。

Here is the first part of a series of papers to describe the studies on cold tolerance of rice.This part mainly describes types of cold injury and evaluation methods for cold tolerance.The types of cold injury can be divided into delaying injury and critical injury.Injuries at budding stage,seedling stage,booting stage,flowering stage,and filling stage can also be called based on the growth stage when the cold injury occurred.Various methods to evaluate cold tolerance at budding stage,seedling stage,booting stage,and flowering stage as well as under natural conditions were systematically introduced.The research progress of criteria relative to cold tolerance evaluation was also detailed.