Growth recovery method and electrical conductivity method were used to determine cold hardiness of 38 Mei flower cultivars belonging to different systems, groups and forms.
用电导法和生长法测定了梅花38个主要代表品种的抗寒性，并对梅花的系统、类、型的抗寒性进行了比较。
So the method of change vector analysis is effective for monitoring winter wheat freeze injury and growth recovery. Also it supply a new way to monitoring the other crop disaster.
因此，变化向量分析法能有效地监测冬小麦冻害灾情与灾后长势恢复情况，同时对其他作物灾害监测提供了途径。
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