青花菜绿体春化过程中光合特性的变化  

Changes of photosynthetic character during vernalization in broccoli

作　　者：丛超[1,2] 刘生财[1,3] 蒋欣梅[1] 于锡宏[1] 徐薇[1] 

机构地区：[1]东北农业大学园艺学院,黑龙江哈尔滨150030 [2]黑龙江省大庆市大同区太阳升镇人民政府,黑龙江大庆163818 [3]福建农林大学园艺植物生物工程研究所,福建福州350002

出　　处：《浙江大学学报（理学版）》2013年第1期83-86,共4页Journal of Zhejiang University（Science Edition）

基　　金：黑龙江省自然科学基金资助项目(C201039);黑龙江教育厅重点实验室资助项目

摘　　要：以早熟品种"清风103"青花菜为试验材料,研究青花菜绿体春化过程中光合特性的动态变化,结果表明:低温春化促进了青花菜的光合作用,青花菜植株叶片中总叶绿素质量比、净光合速率(Pn)、气孔导度(Gs)和胞间CO2摩尔比(Ci)均随着春化的进程而增加,说明春化可以积累更多的碳水化合物,为春化结束后的花芽分化提供更多的能量.The early maturing variety of broccoli ＇Qing-feng 103 ＇ was taken as the material in this experiment, in order to research the dynamic changes of photosynthetic character during the vernalization in broccoli. The result showed that the vernalization in the low temperature promoted photosynthesis in broccoli. With the process of vernalization, total chlorophyll mass ratio, the net photosynthetic rate （Pn）, stomatic conductance（Gs）and intercellular CO2molar ratio （Ci） increased for the leaves of broccoli, explained the vernalization could accumulated more carbohydrate so as to offer more energy for the flower-bud differentiation after vernalization finish.

关 键 词：青花菜 春化作用 光合特性 

分 类 号：S635[农业科学—蔬菜学]