云南高原甘薯地方品种光合特性分析  

Characterization of Photosynthesis of Sweet Potato Local Varieties in the Yunnan Plateau

作　　者：寸湘琴[1] 吴华英[1] 赵庆云[1] 秦乔生[1] 谢世清[1] 

机构地区：[1]云南农业大学农学院,昆明650201

出　　处：《中国农学通报》2005年第7期220-222,共3页Chinese Agricultural Science Bulletin

基　　金：云南省政府与国际马铃薯中心合作项目资助(2002YN-CIP09)。

摘　　要：对23份自育的甘薯品系、台湾薯、川山紫、徐91-51-1和京杂4号等甘薯良种的叶片叶绿素含量和净光合速率进行了测定,对照品种为甘薯良种徐薯18。结果表明:叶片叶绿素a含量以“云薯122”(3.19g/L)最高,叶绿素b含量以“云薯104”(0.86g/L)最高,叶绿素总量含量最高的是“云薯112”和“云薯122”,均为4.04g/L,叶绿素a与叶绿素b的比值最高的是“云薯52”(4.25)。净光合速率、蒸腾速率、气孔导度和细胞间隙CO2浓度均以“甘心红薯”最高,分别为17.98μmol/(m2·s)、7.64μmol/(m2·s)、235.63mmol/(m2·s)和320.12μl/L,均高于徐薯18。Chlorophill content and net photosynthesis rate were tested in 23 sweet potato varieties and 5 commercial varieties, Taiwan Shu, Chuanshanzi, Xu91-51-1, Jingzha 4 and Xushu 18( as a control). Among the tested varieties, Yunshu 122 had the highest chlorophyll a with 3.19g/L, Yunshu 104 had the highest chlorophyll b with 0.86g/L, Yunshu 112 and Yunshu 122 had the highest total chlorophyll with 4.04g/L and Yunshu 52 had the highest ratio 4.25 of Chl a/ Chl b. Ganxinhongshu had the highest net photosynthesis rate, transpiration rate, stomatal conductivity and intercellular CO2 concentration with 17.98μmol/(m2·s), 7.64μmol/(m2·s), 235.63 mmol/(m2·s)and 320.12μl/L, respectively, and higher than those of Xushu 18.

关 键 词：甘薯 特性分析 地方品种 云南高原 叶片叶绿素含量 净光合速率 叶绿素A含量 徐薯18 叶绿素B CO2浓度 对照品种 蒸腾速率 细胞间隙 气孔导度 mol 川山紫 良种 红薯 

分 类 号：S531[农业科学—作物学] S831.8