摘要
用溶液培养的方法,研究了稀土元素对I-69杨苗木生长量、养分吸收和光合作用的影响。结果表明,对平均株高、平均地径、叶面积、根干重、生物量都有促进作用。施用稀土元素能增加苗木对N,P,K,Mg,Fe,Mn,Zn的吸收,减少Ca的吸收。各处理净光合速率都有不同程度提高。
The effects of rare earth elements on growth, photosynthesis and quantities of nutritious elements found in 1-69 poplar, were studied. Growth rate increased with the addition of rare earth elements. Net photosynthesis, the quantity of chlorophyll, a/b ratio, in vitro Rup_2 Carboxylase activity, and LT in 1-69 poplar were all enhanced by addition of rare earth elements. Excepting Ca, the quantities of all other elements were increased by the addition of rare eath elements into the medium.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1991年第4期47-52,共6页
Journal of Beijing Forestry University
关键词
I-69杨
稀土
营养
光合速率
生长
seedling of 1-69 poplar, rare earth elements, nutritious elements, photosynthesis, in vivo fluorescence induction curve
