Comparisons of Photosynthetic Characteristics of FourRhododendron Cultivars
This paper studies 4 cultivars ofRhododendron with excellent ornamental traits.The results show: The net photosynthetic rate Ziyang>Danxia>Hongpinguo> Taiwan Damaoye; Dark respiration rate Hongpinguo>Danxia>Ziyang>Taiwan Damaoye; Taiwan Damaoye has strong adaptability in different light intensity;The diurnal changes of the net photosynthesis rate for differentRhododendroncultivars displayed double-peaked curves, and both of them show an obvious phenomenon of non stomatal limitation of middy-depression atmidday. Ziyang has a higher water and light utilization efficiency .The net photosynthetic rate of different varieties of different cultivars is affected by different environmental factors.