安徽农业大学学报2013，Vol.40Issue(1)：51-54,4.
桂花叶片SPAD、叶绿素含量和比叶重特征
Relationship of SPAD, chlorophyll and LMA in Osmanthus fragrans leaves
摘要
Abstract
Leaf mass per unit area(LMA), chlorophyll content, leaf SPAD value and the nutrient content of Osmamthus fragrans var thunbergii and Osmanthus fragrans var. semperflorens leaves were studied, and the correlation of SPAD and chlorophyll content was discussed. The results were as follows. The chlorophyll a/b in O. fragrans var. thunbergii was lower than that in O. fragrans var. semperflorens leaves, but other indicators were higher; each index in leaves of O. fragrans var. semperflorens plants was not significantly different (P>0.05), while chlorophyll a, chlorophyll b, total chlorophyll (a + b) and carotenoid content in leaves of different O. fragrans var. thunbergii plants were significantly different (P<0.05); the leaf area of O. fragrans var. semper-florens(16.32 cm2) is less than O. fragrans var. thunbergii (35.37cm2), but the LMA was on the contrary. The leaves are partial to the acidity with pH 5- pH 6; the P and Mg contents in O. fragrans var. semperflorens leaves were higher than those in O. fragrans var. thunbergii leaves, while the calcium and potassium contents were on the contrary. The total chlorophyll content and SPAD values were significantly correlated. At present, the phenomenon of urban heat island was prominent, and O. fragrans var. thunbergii has big leaf areas and strong adaptation to light, which is more suitable to popularize in urban greening.关键词
桂花/SPAD/比叶重/叶绿素Key words
Osmanthus fragrans/ SPAD/ LMA/ chlorophyll分类
农业科技引用本文复制引用
刘西军,陈静,徐小牛,舒畅..桂花叶片SPAD、叶绿素含量和比叶重特征[J].安徽农业大学学报,2013,40(1):51-54,4.基金项目
国家自然科学基金(31070569)和国家973计划(2012CB416905)共同资助. （31070569）
