Effect of planting density on plant growth and camptothecin content of Camptotheca acuminata seedlings

编号 zgly0000361552

文献类型 期刊论文

文献题名 Effect of planting density on plant growth and camptothecin content of Camptotheca acuminata seedlings

学科分类 220.99;林学其他学科

作者 WEIHuan-yong  WANGYang  WANGZhen-yue  YANXiu-feng 

作者单位 CollegeofLifeSciences  NortheastForestryUniversityHarbin150040  P.R.China  Collegeofpharmacy  HeilongjiangUniversityofChineseMedicine  Harbin150040  P.R.China 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2005,16(2)

页码 137-139

年份 2005 

分类号 S792.99 

关键词 喜树  喜树碱  含量  栽培密度  幼苗  生物量 

文摘内容 C. acuminata seedlings cultivated in greenhouse were transplanted into the fields with 5 designed planting densities (11, 16, 25,44 and 100 plants·m^-2) in May of 2004 and were harvested in the middle of September of 2004. The seedling growth indexes including plant height and crown width, biomass allocation, camptothecin (CPT) content and CPT yield of different organs (young leaf, old leaf, stem,and root) were studied. For the 5 selected planting densities, the plant biomass, height, crown width, and total leaf area of C. acuminata seedlings all showed highest values at the planting density of 25 plants ·m^-2. CPT content in young leaves was higher than that in other organs of seedlings and presented an obvious change with the variation of planting densities and with the highest value at density of 100plants·m-2, while for other organs no significant variation in CPT content was found with change of planting density. The accumulation of CPT was enhanced significantly at the planting density of 25 plants·m^-2. It is concluded that for the purpose to get raw materials with more CPT from C. acuminata, the optimal planting density of C. acuminata seedlings should be designed as 25 plants·m^-2。