Ecological and Biological Characteristics of Clerodendrum splendens
[ Objective] The aim of the research was to provide important basis for introduction, domestication, cultivation and exploitation of Clerodendrum splendens in China. [ Method] C. splendens cultivated in breeding center and exhibition area of South China Botanical Garden was chosen as research objective to survey the morphological features, anatomic structure, eco-physiological characteristics and nutrient contents. [Result]The average diurnal photosynthetic rate of C. splendens was 3.31 μmol/(m2·s). Its daily course showed single-peaked curve with unremarkable midday depression. The stomatal conductance, transpiration rate and water use efficiency were 0.085 mol/(m2·s), 2.30 mmol/(m2·s) and 1. 44 μmol/mmol, respectively. The weighted nutrient concentrations of C. splendens were N 1. 45% , P 0. 32% , K 0. 66% , Na 0.02% , Ca 3.84% , Mg 0.14% , respectively. C. splendens had a high level of nutrient utilization efficiency and had the highest N, P, K, Mg content in leaf, Na content in root, Ca content in stem. C. splendens is a fast growing good climber, and has good adaptability to different environments. Water and mineral nutrition essential should be added to improve its growth when cultivating. [Conclusion] C. splendens prefers to grow on fertile, acidic soil, under sunny and warm-humid condition. It can also grow well on impoverished soil and is a-dapt to be introduced and cultivated in tropical and subtropical areas in China.
Clerodendrum splendensLandscape greeningEcological and biological characteristicsIntroduction and cultivationExploitation
国家科技期刊平台
NSTL
万方数据
维普
