橡胶树的寒害是外界的低温造成的,除了低温的主导作用外,寒害的程度和表现形式又与低温期间的日照、湿度、风速、变温幅度等综合气象条件有密切关系。这些大范围的外界气象因素目前是难于人为控制和改变的。但在同样的低温及其它综合气象因素作用下,橡胶不同抗寒力的品系,同一品系不同的苗龄、不同的生长状态和营养状况等内在因素与橡胶的寒害都有不同程度的关系。正确认识这些因素和抗寒力的关系,有助 The chilling injury of rubber trees is caused by the low temperature outside. Besides the leading role of low temperature, the degree and manifestations of chilling damage are closely related to the comprehensive meteorological conditions such as sunshine, humidity, wind speed and temperature change during low temperature. These large-scale external meteorological factors are currently difficult to control and change artificially. However, under the same low temperature and other comprehensive meteorological factors, the internal factors such as different cold resistance strains of rubber, different seedling ages, different growth states and nutritional status of the same strain all have different degrees of relationship with the chilling injury of rubber. Correct understanding of these factors and the relationship between cold hardiness help