辣椒(Onza和Cajamarca)光合特性研究  

Study on Photosynthetic Characteristics of Capsicum annuum L.

作　　者：徐小蓉[1] 罗在柒 张习敏[1] 张冬林[1] 乙引[1] 

机构地区：[1]贵州师范大学生命科学学院,贵阳550001 [2]贵州省林业科学研究院,贵阳550001

出　　处：《贵州科学》2011年第5期80-84,共5页Guizhou Science

基　　金：贵州省科技厅国际科技合作计划项目(黔科合外G字[2010]7025号);贵州省科技厅农业攻关项目(黔科合NY字[2011]3029号);贵州省社发攻关项目(编号:黔科合SY[2011]3094号);贵州省科技创新人才团队建设项目(黔科合人才团队[2009]4007号)

摘　　要：本文通过研究两种长势一致的不同辣椒品种(Onza和Cajamarca)的光合特性,探讨不同品种辣椒光合特性是否存在差异。通过LI-6400便携式光合作用系统测定两种辣椒的光合特性。结果表明:Cajamarca的光饱和点低于Onza,而光补偿点高于Onza。Onza和Cajamarca净光合速率具有相同的变化趋势,最大净光合速率分别为8.86、7.22μmolCO2·m-2·s-1;Onza和Cajamarca气孔导度、胞间CO2浓度日变化趋势相反,而两个品种蒸腾速率变化趋势相同。表明两个长势相同的辣椒品种的光合作用存在差异。The paper explained the differences of photosynthesis characteristics in different stages of growth and development, and the photosynthesis characteristics of two species. The photosynthesis of two pepper species was determined by using portable LI-6400 photosynthesis system. The results showed that the light saturation point of Cajamarca was lower than that of Onza, and the light compensation point of Cajamarea was hight than that of Onza. The net photosynthetic rate of Onza and Cajamarca has the same variation trend, with the highest net photosynthetic rates were 8.86 and 7.22 umol CO2· m-2· s-1 respectively. Their gas conduction and intercellular CO2 concentration showed inverse diurnal variation. Nevertheless, their transpiration rates had the same variations. The photosynthesis was different for their growth and development.

关 键 词：Onza Cajamarca 光合特性 

分 类 号：Q949.72[生物学—植物学]