ZENG Hui,LI Chao,LIU Xiao,et al.Effect of Exogenous Hormones IAA and 6-BA on Photosynthetic Characteristics of ‘Bofeng’ Walnut(Juglans regia)[J].Northern Horticulture,2015,39(13):31-34.[doi:10.11937/bfyy.201513008]
外源激素IAA和6-BA对“薄丰”核桃光合特性的影响
- Title:
- Effect of Exogenous Hormones IAA and 6-BA on Photosynthetic Characteristics of ‘Bofeng’ Walnut(Juglans regia)
- 文章编号:
- 1001-0009(2015)13-0031-04
- Keywords:
- exogenous hormones; IAA; 6-BA; ‘Bofeng’ walnut; photosynthetic characteristics
- 分类号:
- S 664,1
- 文献标志码:
- A
- 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100 mg/L IAA后能提高其对光环境的适应能力，而喷施100 mg/L 6-BA的作用却不十分明显；对“薄丰”核桃喷施100 mg/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10.699 μmol.m-2.s-1；而对“薄丰”核桃喷施100 mg/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。
- Abstract:
- 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 AA 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 10.699 μmol?m-2.s-1；and after spraying 100 mg/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.
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备注/Memo
第一作者简介：曾辉（1975-），女，贵州兴义人，硕士，工程师，研究方向为植物多样性。E-mail:xz0010010011@163.com.基金项目：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）.