摘要
对楝树苗木物候、苗高、径生长规律进行了初步研究,结果表明:楝树1年生苗木苗高生长出现2个高峰期,分别在8月中旬和10月上旬;而地径也呈现出相同规律,第1次比苗高早30天左右,第2次与苗高时间相同;苗木生长期可分为出苗期、生长初期、生长盛期、生长后期和休眠期5个阶段,年生长周期245天。根据各阶段苗木的生长特点,提出了育苗关键技术措施。
The research on Melia azedarach is made, including its phenophase, growth rhythm of height and diameter. The results show that①Melia azedarach＇s annual seedlings have two peak stages of height growth, which appear in the middle days of August and in the previous days of October, respectively. ②The diameter growth has also two peak stages.The first peak stage of diameter is 30 days earlier than that of height. ③There are 5 stages,such as seedling stage, early stage, peak stage, late stage and rest stage in its growing season. The annual growing season has 245 days.According to the seedlings＇growth chaeracteristics of various stages,the nursery techniques are given.
出处
《江西林业科技》
2005年第5期16-17,共2页
Jiangxi Forestry Science and Technology
关键词
楝树
育苗技术
苗木物候
生长规律
Melia azedarach
Nursery technique
Seedling phenophase
Growth rhythm
