同源四倍体水稻光合特性初步研究  

Preliminary Studies on Photosynthetic Characters of Autotetraploid Rice

作　　者：阮华强 黄群策[1] 杨鹏鸣[1] 

机构地区：[1]郑州大学河南省离子束生物工程重点实验室,河南郑州450052

出　　处：《杂交水稻》2016年第2期76-80,共5页Hybrid Rice

基　　金：河南省水稻重大专项(091100110401)

摘　　要：利用2份同源四倍体水稻和相应的二倍体水稻为试验材料,在大田试验和盆栽试验条件下对其光合生理特性进行了研究。结果表明,同源四倍体水稻生育后期(乳熟期)的光合速率高于相应的二倍体水稻;在土壤干旱条件下,与相应的二倍体水稻相比,同源四倍体水稻的光合速率表现出一定的优势,其剑叶的叶绿素含量、Fv/Fm和ФPSⅡ保持较高的水平。Using two diploid rice lines （630-2X and SP-2X） and their corresponding autotetraploid rice lines （630- 4X and SP-4X） as the materials, the photosynthetic characters were studied under both pot culture and field conditions. The results showed that the photosynthetic rate of autotetraploid rice was higher than that of diploid rice in late growth stage （milk stage）. Under drought stress conditions, autotetraploid rice was superior to diploid rice in photosynthesis, as expressed in a higher level of chlorophyll content, Fv/Fm and ФPSⅡ in flag leaf.

关 键 词：同源四倍体水稻 光合特性 干旱 

分 类 号：S511.01[农业科学—作物学] S311