关键词: 生物, 抗旱, 水分利用效率, 鉴定评价, 遗传改良

Abstract: Biology water saving is one of the major fields of water saving agriculture in the future, which has an enormous potential of water saving. In this paper, the necessity and urgency of developing biology water saving were discussed firstly, and then research progresses on biology water saving at home and abroad were introduced as follow aspects: mechanisms of drought resistance and high water use efficiency, criterions for identifing and evaluating drought resistance and water use efficiency, genetic improvement for drought resistance and water use efficiency, water saving irrigation technology based on the physiological regulation and control in crop plants. Major problems in the research field at present were put forward and development trends of biology water saving in the future were discussed at last.

Key words: Biology water saving, Drought resistance, Water use efficiency, Identify and evaluation, Genetic improvement