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不同砧木嫁接番茄光合特性的研究
李文嘉;王益奎;黎炎;康红卫;吴永官;梁任繁;
1.广西农业科学院蔬菜研究中心;2.广西农业科学院蔬菜研究中心 广西南宁530007;3.广西南宁530007;4.广西大学农学院;5.广西南宁530005
摘要:
采用LI-6400便携式光合作用系统对田间条件下嫁接番茄(珍红/砧木1号,珍红/桂砧1号)以及接穗(珍红)的光合作用特性进行了系统研究。结果表明:自根苗的光饱和点显著高于嫁接苗;自根苗和嫁接苗的光补偿点差异不显著,以珍红/桂砧1号最高(31.8μmolphotons·m-2·s-1),珍红/砧木1号最低(17.6μmolphotons·m-2·s-1);嫁接苗的CO2补偿点显著低于自根苗,且珍红/桂砧1号与自根苗的差异达极显著水平;表观量子效率变化范围为0.062~0.073;CO2饱和点在844~971μmolCO2·mol-1左右,CO2羧化效率变化范围为0.055~0.086molCO2...
关键词:  番茄    光合特性    砧木    补偿点
DOI:
分类号:
Fund project:广西青年基金资助项目(桂科青033999013)~~
Abstract:
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