摘要
选择小麦旗叶叶绿素含量的相对稳定期、稳定期末期和速降期 3个发育阶段 ,采用酶联免疫法测定旗叶中ABA/ZRs比值 ;将ABA、ZRs和二者的混合液引入 3个发育阶段植株的蒸腾流 ,测定激素对不同发育阶段叶片光合速率的影响 .结果表明 ,3个发育阶段植株旗叶中ABA/ZRs比值分别为 4 2 0、4 1 83和14 4 0 .ABA降低 3个阶段叶片光合速率达到零值的时间 ,分别为 4 9 5、39 1和 38 0min ;ZRs处理 3个发育阶段小麦旗叶的光合速率值降至试验开始零分钟时测得的光合速率值一半的时间 ,分别为 6 5、4 9和 31min .小麦旗叶的前 2个发育阶段为可调和可逆阶段 ,后 1个阶段为不可调和不可逆阶段 .
By the method of ELASA,this paper measured the ABA/ZRs ratio in wheat flag leaf at the relative steady phase (RSP),end steady phase (ESP) and sharply descending phase (SFP) of chlorophylls.The ABA,ZRs and their mixture were led to the transpiration current of plant to measure the changes of photosynthesis rate at these three phases.The results showed that the ABA/ZRs ratio in flag leaf was 4.20,41.83 and 14.40 at RSP,ESP and SFP,respectively.The time that the photosynthesis rate reduced by ABA to zero was 49.5,39.1 and 38.0 min,and that reduced by ZRs to half was 65,49 and 31min,respectively.The two preceding phases could be regulated,and the changes were reversible.
出处
《应用生态学报》
CAS
CSCD
2004年第11期2083-2086,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目 (3 0 2 0 0 170 )
福建省重大科技资助项目(2 0 0ZF0 12 )
关键词
激素
小麦
光合速率
调控
Hormone, Wheat, Photosynthesis rate, Regulation and control.
