摘要
对山杨采种、育苗技术的研究结果表明，选择当年采种母树的最佳期为放叶前的５月１日～５月５日。山杨蒴果成熟的标志是果皮变成米黄色，种子浅棕色，１０℃以上积温为３５３．３～３６８℃，物候项特征是紫丁香将要开花。山杨适宜的播种地是排水良好、前茬是针叶树的土壤。出苗后的管理重点是防暴雨、冰雹和病虫害。
This paper investigated the technique of seed collection and seedling nursing of Populus davidiana.The result indicated that the optimum period for selecting the same year seed bearer was in May 1 to may 5 before the leave developing.The signs of the mature capsule of Populus davidiana were cream-coloured peel,light brown-yellow seed.The accumulated temperature above 10℃ was 3533～368℃.And the phenological phase feature was the florescence of lilac. A land with good drainge and on where the former crop was softwood stand is suitable for seeding.The prevention of rainstorm, hail and pests are the key points in management,after field emergence.
出处
《林业科技》
北大核心
1998年第3期1-3,共3页
Forestry Science & Technology
关键词
山杨
采种
育苗
Populus davidiana
Seed collection
Seedling nursing
