摘要
针对在塑料大棚里反季栽培香椿芽的某些关键性技术问题，系统研究了香椿芽萌发的有效积温，提出了相应的大棚栽培技术意见。香椿芽萌发的最低临界温度约为６℃。从休眠到萌发所需的有效积温，因种源、温度、低温处理等的不同而异。尚未落叶的已封顶的非休眠苗，其萌发有效积温、平均萌发期与休眠苗基本相同，但萌发率远小于休眠苗。假植和低温处理联合作用，能有效地促进非休眠苗提早萌发。
To counter the key techniques of cropping Toona sinensis buds in plastic green houses, the authors systimatically studied the effective accumulated temperature of Toona sinensis germination. Tooa sinensis buds germinated at the minimum critical temperature of 6℃. The effective accumulated temperature from dormancy to germination varied with the provenances, temperature and treatment methods of low temperature . There was no striking difference in the efective accumulated temperature of germination and in mean germination period between undormant shoots and dormant shoots, but germination ratio of undormant shoots was by far lower than that of dormant shoots. The function of combinating temporary planting and lor temperature treatment could effectively promote earlier germination of undormant shoots and raise the germination ratio. The relavant cropping techniques in plastic green houses were put forward.
出处
《浙江林学院学报》
CSCD
1998年第1期6-12,共7页
Journal of Zhejiang Forestry College
关键词
香椿
种源
萌发
休眠
有效积温
塑料温室
栽培
Toona sinensis
provenance
germination
dormancy
effective accumulated temperature
plastic green houses cropping
forest vegetable
