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分析比较了当前在稻类耐冷特性鉴定评价中普遍应用的鉴定方法与评价指标。稻种资源耐冷性鉴定中存在数量多、规模大、且材料来源于不同生态区的各种变异类型的特点 ,应本着具体情况与研究目的选择适宜的性状指标进行评价。提出了室内芽苗期鉴定和高原异地自然生境下穗期鉴定相结合的耐冷性鉴定评价指标和方法
Analysis and comparison of the current identification methods in the identification and evaluation of cold tolerance characteristics of rice and evaluation index. The identification of cold tolerance in rice germplasm resources is characterized by many varieties, large scale, and various types of variation of materials from different ecoregions. Appropriate traits should be selected according to the specific conditions and research purposes. The evaluation indexes and methods of cold tolerance identification combining with indoor bud seedling identification and panicle identification under natural habitats in different places of plateau