摘要
以栽培3年的"薄丰"核桃为试材,用LI-6400光合测定仪测定叶面喷施外源激素IAA和6-BA对其光合特性的影响。结果表明:对"薄丰"核桃喷施100mg/L IAA后能提高其对光环境的适应能力,而喷施100mg/L 6-BA的作用却不十分明显;对"薄丰"核桃喷施100mg/L IAA后其净光合速率日变化为单峰曲线,其净光合速率明显高于对照组,最大值比对照组高出10.699μmol·m-2·s-1;而对"薄丰"核桃喷施100mg/L 6-BA后其净光合速率日变化曲线变化为双峰曲线,出现了明显的午休现象,但净光合速率均值与对照组较为接近。
Taking ‘Bofeng’ walnut of 3-years-old as material,effect of IAA and 6-BA on photosynthetic characteristics in foliar spraying by using portable photosynthesis system LI-6400 were studied. The results showed that spraying 100 mg/L IAA to ‘Bofeng＇ walnut could improve their ability to adapt to light environment, while spraying 100 mg/L 6-BA role was not very clear. After spraying 100 mg/L IAA its diurnal variation of a single peak,the net photosynthetic rate was significantly higher than the the control group,its maximum value higher than the control group 10. 699μmol· m^-2 · s^-1 and after spraying 100 rng/L 6-BA its diurnal variation curves for the bimodal curve, there was a clear midday depression, but the net photosynthetic rate was closer to the mean of the control group.
出处
《北方园艺》
CAS
北大核心
2015年第13期31-34,共4页
Northern Horticulture
基金
贵州省科技厅资助项目(黔科合重大专项字[2011]6011号)
贵州省林业调查规划院森林生态监测评估院士工作站资助项目(黔科合院士站[2013]4004)
贵州省森林资源监测与评价科技创新人才团队资助项目(黔科合人才团队[2013]4007)
关键词
外源激素
IAA
6-BA
“薄丰”核桃
光合特性
exogenous hormones
IAA
6-BA
‘ Bofeng＇ walnut
photosynthetic characteristics
