摘要
唐菖蒲、月季、菊花、香石竹适应于光照较强的环境，光饱和点均较高，香石竹为４．８０万ｌｘ，唐菖蒲和月季均为４．５０万ｌｘ，菊花为４．２５万ｌｘ。但它们的光补偿点并不高，唐菖蒲、月季、香石竹均约为１０００ｌｘ，菊花约为５００ｌｘ。净光合速率（Ｐｎ）高低顺序为唐菖蒲＞菊花＞香石竹＞月季。光呼吸速率（Ｐｒ）、暗呼吸速率（Ｄｒ）与Ｐｎ相互间呈正相关。唐菖蒲叶片两面气孔密度相同，菊花叶片下表面气孔多于上表面，香石竹叶片下表面气孔少于上表面，月季叶片下表面有气孔而上表面无气孔。气孔密度大小顺序为唐菖蒲＞香石竹＞菊花＞月季。气孔的大小与气孔密度呈负相关。
Gladiolus hybridus,Dianthus caryophyllus,Dendranthema morifolium and Rosa hybrida are adaptive to the environment with high level of light intensity.The light saturation point of Dianthus caryopyllus was 4.8×10 4lx,those of Gladiolus hybridus and Rosa hybrida were both 4.5×10 4lx,and that of Dendranthena moriflium was 4.25×10 4lx,The light compensation point for Dendranthema morifolium was 500lx,and for the others it was about 1000lx.The net photosynthetic rate was in the order of Gladiolus hybridus ′s> Dendranthema morifoliums ′s> Dianthus caryophyllus ′s> Rosa hybrida′ s.The correlation coefficient were positive between Pn and Pr,Pn and Dr or Pr and Dr.The stoma of two surface of Gladiolus hybridus was equal,and the ones of upper surface of Dianthus caryopyllus more than lower surface,and those of lower surface of Dendranthema morifoliummore than upper surface,but the upper surface of Rosa hybridahadn ′t stoma.The density of stoma of lower surface were Gladiolus hybridus ′s> Dianthus caryophyllus ′s> Dendranthema morifolium ′s> Rosa hybrida ′s.The correlation coefficient was negative between size and density of stoma.
出处
《园艺学报》
CAS
CSCD
北大核心
1998年第3期280-286,共7页
Acta Horticulturae Sinica
基金
贵阳市城市管理委员会资助
关键词
唐菖蒲
月季
菊花
香石竹
光合特性
叶表特征
Gladiolus hybridus
Rosa hybrida
Dendranthema morifolium
Dianthus caryophyllus
Photosynthetic physiology
