摘要
本研究以“三华系列”油茶为试材,通过“显微观察—石蜡切片法”观察叶片解剖结构,测定油茶叶片光合特性,并进行比较分析。结果表明,‘华硕’的栅栏组织/海绵组织比值(TRPS)、栅栏组织/叶片厚度比值(DCTR)显著大于‘华鑫’‘华金’,‘华金’的叶片厚度、栅栏组织厚度、上表皮厚度、下表皮厚度显著大于‘华硕’‘华鑫’;‘华硕’的气孔密度显著高于其他2个品种;‘华硕’的净光合速率、胞间CO_(2)浓度均显著高于‘华鑫’‘华金’;叶绿素a、叶绿素b、叶绿素总量均存在显著性差异,表现为‘华硕’>‘华鑫’>‘华金’;净光合速率与TRPS、DCTR呈显著正相关关系;气孔导度、胞间CO_(2)浓度与TRPS、DCTR呈极显著正相关。在“三华系列”油茶中,‘华硕’的光合特性表现最好,推荐其作为信阳地区的主栽油茶品种。
Take"Sanhua Series"Camellia oleifera as the test material,observation leaf anatomical structure by"microscopic observation"paraffin section method,determining photosynthetic characteristics of Camellia oleifera,and make a comparative analysis.The test results show that the palisade tissue/sponge tissue ratio(TRPS)and palisade tissue/leaf thickness ratio(DCTR)of'Huashuo'were significantly higher than those of'Huaxin'and'Huajin';the leaf thickness,palisade tissue thickness,upper epidermis thickness and lower epidermis thickness of'Huajin'were significantly greater than those of'Huashuo';the leaf thickness,palisade tissue thickness,upper epidermis thickness and lower epidermis thickness of'Huajin'were significantly higher than that of'Huashuo'and'Huaxin';the stomatal density of'Huashuo'is significantly higher than the other two varieties;the net photosynthetic rate and intercellular CO_(2)concentration of'Huashuo'were higher than those of'Huaxin'and'Huajin',and the difference was significant;there were significant differences in chlorophyll a,chlorophyll b,and total chlorophyll,as shown in the order of'Huashuo'>'Huaxin'>'Huajin';the net photosynthetic rate was significantly positively correlated with TRPS and DCTR;Stomatal conductance and intercellular CO_(2)concentration were positively correlated with TRPS and DCTR.In summary,in the"Sanhua Series"Camellia,'Huaxin'had the best photosynthetic characteristics.It can be recommended as the main variety of Camellia oleifera in Xinyang area.
作者
蔡东升
裴欣睲
闵筱筱
杜长梅
陈情情
龚守富
CAI Dongsheng;PEI Xinxing;MIN Xiaoxiao;DU Changmei;CHEN Qingqing;GONG Shoufu(Xinyang Agriculture and Forestry University,College of Horticulture,Xinyang Henan 464000)
出处
《安徽农学通报》
2023年第7期52-57,共6页
Anhui Agricultural Science Bulletin
基金
信阳农林学院青年教师科研基金资助项目(QN2021047)
信阳农林学院青年教师科研基金资助项目(20200107)
信阳农林学院科技创新团队资助项目(CXTD-202002)。
关键词
“三华系列”油茶
叶片解剖结构
光合特性
相关性分析
"Sanhua Series"Camellia oleifera
leaf anatomical structure
photosynthesis characteristics
correlation analysis
