华北农学报 ›› 2008, Vol. 23 ›› Issue (3): 85-89. doi: 10.7668/hbnxb.2008.03.022

所属专题: 玉米

• 论文 • 上一篇    下一篇

叔胺类活物质对玉米叶片光合特性与叶绿素荧光特性的调控效应

顾万荣, 李召虎, 翟志席, 段留生, 张明才   

  1. 中国农业大学, 农学与生物技术学院农学系, 农业部作物栽培与耕作学重点开放实验室, 北京, 100094
  • 收稿日期:2008-02-03 出版日期:2008-06-28
  • 通讯作者: 张明才(1975-).男.安徽绩溪人.讲师.主要从事作物化学控制研究。
  • 作者简介:顾万荣(3980-),男,江苏扬州人,博士,主要从事作物化学控制研究工作.
  • 基金资助:
    国家自然科学基金(30500306);国家“863”计划项目(2006AA10A213)

Regulation of Tertiary Amine Bioregulator on Photosynthesis and Chlorophyll Fluorescence Parameters of Corn Leaves

GU Wan-rong, LI Zhao-hu, ZHAI Zhi-xi, DUAN Liu-sheng, ZHANG Ming-cai   

  1. College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China
  • Received:2008-02-03 Published:2008-06-28

摘要: 以玉米农大108为试验材料,在温室和盆栽条件下,研究叶面喷施叔胺类活物质DCPTA和DTA-6对玉米苗期叶片光合特性、光合关键酶以及叶绿素荧光特性的调控机制。结果表明,DCPTA和DTA-6处理显著提高了玉米株高和生物量;显著提高了玉米叶片光合速率、蒸腾速率、气孔导度和叶绿素含量,降低了细胞间隙CO2浓度,但不改变叶绿素a/b值;显著提高了PEPC羧化酶和RuBP羧化酶活性;显著提高了玉米叶片PSⅡ最大光化学效率(Fv/Fm)、PSⅡ有效电子产量(ΦPSⅡ)和光化学淬灭(qP),降低了非光化学淬灭系数qN;DCPTA和DTA-6处理的适宜浓度分别为50和20 mg/L。

关键词: 植物生长调节剂DCPTA和DTA-6, 玉米, 光合作用, 叶绿素荧光

Abstract: The effect of tertiary amine bioregulator(DCPTA and DTA-6)on photosynthesis,photosynthetic key enzyme and chlorophyll fluorescence parameters of corn(cv.Nongda 108)leaves,was studied in pots under greenhouse.DCPTA and DTA-6 were sprayed on leaves at seedling about four explanted leaves,and with water spraying as control.The results indicated the height and biomass were significantly increased by DCPTA and DTA-6.The photosynthetic rate,transpiration rate,stomatal conductance and chlorophyll content were increased,and the intercellular CO2 concentration was decreased,the chlorophyll a/b was indifference by DCPTA and DTA-6.The activities PEPCase and RuBPcase,maximal photochemical efficiency of PSⅡ(Fv/Fm),effective quantum yield of PSⅡ(ΦPSⅡ),photochemical quenching coefficient(qP)were significantly promoted by DCPTA and DTA-6,but nonphotochemical quenching coefficient was declined.The treatment was best at the DCPTA with 50 mg/L and DTA-6 with 20 mg/L.

Key words: Plant growth regulator DCPTA and DTA-6, Corn, Photosynthesis, ChlorophyII fluorence

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引用本文

顾万荣, 李召虎, 翟志席, 段留生, 张明才. 叔胺类活物质对玉米叶片光合特性与叶绿素荧光特性的调控效应[J]. 华北农学报, 2008, 23(3): 85-89. doi: 10.7668/hbnxb.2008.03.022.

GU Wan-rong, LI Zhao-hu, ZHAI Zhi-xi, DUAN Liu-sheng, ZHANG Ming-cai. Regulation of Tertiary Amine Bioregulator on Photosynthesis and Chlorophyll Fluorescence Parameters of Corn Leaves[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(3): 85-89. doi: 10.7668/hbnxb.2008.03.022.

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