前言作物抗旱性的研究已成为全球所关注的问题。广西甘蔗种植面积有70%以上是旱坡地,因此,研究甘蔗品种的抗旱特性、筛选和推广抗旱品种具有十分重要的实践意义。多年来,抗旱品种的选育一般是把选育材料放到干旱地区进行多年多点的直接试验,但由于试验年限长,费工费时,完成整个选择周期一般需10多年。近年来,不少学者试图从抗旱生理生化等角度探讨甘蔗品种抗旱特性的关系,如研 Preface The study of crop drought resistance has become a global concern. More than 70% of sugarcane planting area in Guangxi is arid lands, therefore, it is of great practical significance to study drought resistance characteristics of sugarcane varieties and screen and popularize drought-resistant varieties. For many years, the breeding of drought-resistant cultivars has generally been conducted in arid areas for many years. However, due to the long test period and the time-consuming work, it takes more than 10 years to complete the entire selection cycle. In recent years, many scholars have tried to explore the relationship between the drought resistance characteristics of sugarcane varieties from the aspects of physiological and biochemical aspects such as drought resistance