石家庄市园林局苗圃1976年自南京引进雪松的扦插苗。1977年冬季大部分植株的叶片和枝梢枯干,甚至全株死亡(通常称之为“抽条”)。抽条的雪松是3—6年生,株高0.5—1.0米。最初疑为冻害,1978年用稻草包扎保护,仍发生抽条。为此,1978—1980年进行调查和试验,初步查明是由于在低温下加上干旱造成的。 Garden Bureau Shijiazhuang nursery 1976 introduced from cedar cutting seedlings in Nanjing. The leaves and shoots of most of the plants in winter 1977 were withered and even whole-plant-dead (commonly referred to as “stripe”). The drawn cedar is 3-6 years old, plant height 0.5-1.0 meters. Initially suspected of frost damage, wrapped in straw in 1978 to protect, still occur pumping. For this reason, investigations and tests carried out from 1978 to 1980 were initially identified as being caused by the addition of drought at low temperatures.