摘要
在浙江省临安市对当年移栽成活的绿竹试管苗采取随机抽样的方法,测定其各月的出苗数、竹苗地径和竹苗高等因子,研究绿竹试管苗年生长的规律。结果表明:新出竹苗的月平均地径随着出苗月份的推移逐月增粗,平均高度呈正态分布;试管苗移栽后发新苗期长达8个月,发新苗高峰期为8月份,占全年总量的23 8%;其新竹苗高生长历时47d左右,平均生长总量达114 4cm,平均日生长量达2 43cm,最大日生长量可达6 86cm;每株试管苗平均年出竹苗数为42 5株。表明绿竹试管苗是建立绿竹采穗圃或母竹园的好材料。
The number,basal diameter and height of new plantlets of survived test-tube plantlets of Bambusa oldhami are measured every month with the method of random sampling to study the annual growth rules of it.The results show that the average monthly basal diameter of new plantlets increases from month to month and the average height shows normal distribution.Transplanted test-tube plantlets can produce new plantlets during a period of 8 months,with a growth peak occurring in August when 23.8% of the annual total quantity are produced.The height growth of new plantlets lasts for 47 days and plantlet can reach a height of 114.4 cm on average.The average daily growth height is 2.43 cm and the maxium is 6.86 cm.On the average,each test-tube plantlet produces 42.5 new plantlets annually.The above-mentioned shows that test-tube plantlets of Bambusa oldhami are good materials for the establishment of stool gardens or cutting-producing gardens.[Ch,4 tab.9 ref.]
出处
《浙江林学院学报》
CAS
CSCD
北大核心
2003年第4期342-345,共4页
Journal of Zhejiang Forestry College
基金
浙江省科技厅重点资助项目(2003C22025)
关键词
育苗
绿竹
试管苗
出苗期
生长因子
nursery stock growing
Bambusa oldhami
test-tube plantlets
emergence stage
growth factors
