General Situation of Research and Development on Antifreeze Technology for Wine Grape Overwintering

Wintering anti-freezing technology is decisive to growing, development, yield and quality of wine grape．Severe freezing damage in winter directly influences not only income of growers, but also grape-industry development healthily and stably．Through looking up lots of pertinent literatures on grape overwintering antifreeze technology, technologies were summed up on covering soil, other materials mixed soil, covering other materials, and shelves and multiple cultivation techniques, such as selecting scion grafting, varieties of antifreeze, posture, planting way and inter-garden management measures．Results showed that selecting scion grafting was the firstly needed to solve primary and fundamental hidden of freezing injury．Secondly, the most important thing was cold protection measures．Benefits of polyvinyl chloride and other mixed soil or glass wool insulation quilt were better than that of burying soil．Beimei, Beihong in North China and parts of south of it could live through winter form shelves．Polystyrene has good cold protection effect and could be used on frost emergency, such as of which has good environmental protection effect and may be main development direction of wine grape overwintering technology in the future．