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岗梅幼苗年生长节律研究
曾淑燕1, 陈佛传2, 罗万业1, 张冬生1, 陈新强1, 黄锦荣1, 叶雪兰1, 王德州3
1.梅州市农林科学院林业研究所;2.广东兴源农林有限公司;3.. 广东兴源农林有限公司
摘要:
通过对 1 年生岗梅 Ilex asprella 幼苗苗高和地径生长过程进行定期跟踪观察、调查，岗梅幼苗苗高及地径生长曲线均呈“S”形，快速生长阶段均集中在 5-8 月份之间。苗高与地径均有两次高峰生长阶段，分别在 6 月和 7 月。8 月开始苗高和地径增长速度逐渐减缓，进入 11 月生长缓慢，直至 12 月份基 本停止生长。苗高和地径的生长量均符合拟合 Logistic 曲线方程的生长规律。根据岗梅幼苗生长特点，幼苗生长过程可划分为 5 个生长阶段：萌动期、出苗期、生长早期、生长盛期、生长后期。
关键词:  岗梅  幼苗  生长  节律
DOI：
分类号:
基金项目:广东省林业科技创新项目（2018KJCX050），广东省地方标准项目（2019-DB-06）。
Study on Annual Growth Rhythm of Ilex asprella Seedlings
Zeng Shuyang1, CHEN Fuchuan2, LUO Wanye1, ZHANG Dongsheng1, CHEN Xinqiang1, HUANG Jinrong1, YE Xuelan1, WANG Dezhou3
1.Forestry Research Institute of Meizhou Academy of Agricultural and Forestry Sciences;2.Guangdong Xingyuan Agriculture and Forestry limited company;3.Guangdong Xingyuan Agriculture and Forestry Limited Company, Meizhou, Guangdong 514427, China
Abstract:
Through regular follow-up observation and investigation of the growth process of 1-year-old Ilex asprella seedlings, the growth curve of seedling height and ground diameter of I. asprella was "S" shaped, and the rapid growth stages were concentrated between May and August. There were two peak growth stages of seedling height and ground diameter in June and July respectively. The growth rate of seedling height and ground diameter gradually slowed down from August, and the growth rate slowed down from November until December when growth stops. The growth of seedling height and ground diameter conformed to the growth law of fitting the logistic curve equation. According to the characteristics of seedling growth of I. asprella, the seedling growth process can be divided into five growth stages: the Germination stage, Emergence stage, Early growth, Active growth stage, and Late growth stage.
Key words:  Ilex asprella  seedling  growth  rhythm