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本文利用越冬能力强弱不同的奥依宾和利桑佳两个黑穗醋栗（ＲｉｂｅｓｎｉｇｒｕｍＬ．）品种进行枝条临界含水量的测定，不同低温下根系吸水能力的测定和冻旱模拟等试验，结果表明越冬力强的品种枝条临界含水量低于越冬力弱的品种，并且到达临界含水量所持续的时间长；越冬力强的品种其根系在低温下吸水能力亦强于越冬力弱的品种；另外植株状态不同抗冻旱能力存在明显差异，返绿苗抗冻旱能力远不及冬态苗，因此黑穗醋栗冻旱致死发生的时期总是集中在返绿（萌芽）期。
In this paper, the test of the critical moisture content of branches, the determination of water absorption capacity under different low temperature and the freeze-drought simulation were carried out by using two varieties of Ribes nigrum L. which had different ability of overwintering. The results showed that the critical moisture content of the branches with more overwintering ability was lower than those with weak overwintering ability and reached the critical moisture content for a long time. In addition, there were significant differences in the ability of different plants to resist freezing drought. The ability of anti-freezing drought resistance of greenback seedlings was far less than that of winter seedlings. Therefore, the period of freeze-drought of blackcurrant always focused on the period of returning to greening (germination).