Cold hardiness identification and test method are important contents in study of plant cold hardiness. So far, most of researches on woody plant cold hardiness physiology belong to cold hardiness identification and utilization,small part belong to cold hardiness test method, researches on cold hardiness mechanism is relatively few. Nowadays, main identification methods of plant cold hardiness are as follows: field cultivation, low temperature disaster investigation,artificial simulation of cold weather, and establishment of mathematical model. Methods of plant cold hardiness test has formed characteristic袁main methods are as follows: growth status test, surveying freezing injury index, testing electrolyte leakage rate (electric conductance value), biological electrical impedance spectroscopy. Comprehensive application of plant cold hardiness identification and test method should be fully noticed in the future. |