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月均气温对三叶青林下容器栽培苗光合特性及其块根总黄酮含量的影响

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文章比较了 2015-2019 年五府山月均气温对三叶青林下容器栽培苗光合生理及其块根总黄酮含量的影响。结果表明，2015-2019 年，五府山 1 月的气温最低，2-6 月气温逐渐提升，7-8 月气温达到最高值，9-12 月气温逐渐下降。随着 1-6 月气温逐渐提高，五府山三叶青林下容器栽培苗叶绿素含量 SPAD 值、净光合速率(Pn)、气孔导度(Gs)、蒸腾速率(Tr)、气孔限制值(Ls)、瞬时羧化速率(CUE)、初始荧光(Fo)、最大荧光(Fm)、光下最小荧光(F'o)、光下最大荧光(F'm)、稳态荧光(Fs)、PSⅡ最大光能转化效率(Fv/Fm)、PSⅡ潜在光化学效率(Fv/Fo)、PSⅡ实际光化学效率(ΦPSⅡ)、开放的 PSⅡ反应中心捕获激发能效率(F'v/F'm)、光化学淬灭系数(qP)和块根总黄酮含量显著提高(P<0。05)，胞间 CO2 浓度(Ci)、水分利用效率(WUE)和非光化学淬灭系数(NPQ)显著下降(P<0。05);气温在 7-8 月达到最高值，五府山三叶青林下容器栽培苗叶绿素含量 SPAD 值、Pn、Gs、Tr、Ls、CUE、Fo、Fm、F'o、F'm、Fs、Fv/Fm、Fv/Fo、ΦPSⅡ、F'v/F'm、qP 和块根总黄酮含量达到最大值，Ci、WUE和 NPQ达到最低值;9-12 月气温逐渐下降，五府山三叶青林下容器栽培苗叶绿素含量 SPAD 值、Pn、Gs、Tr、Ls、CUE、Fo、Fm、F'o、F'm、Fs、Fv/Fm、Fv/Fo、ΦPSⅡ、F'v/F'm、qP 和块根总黄酮含量显著下降(P<0。05)，Ci、WUE和 NPQ显著提高(P<0。05)。本试验结果可为三叶青林下容器生态栽培提供气象因子(气温)依据。
Effects of monthly average air temperature on photosynthetic characteristics and total flavonoids content in root tubers of Tetrastigma hemsleyanum Diels et Gilg seedlings grown in containers under the forest
The effects of monthly average temperature in Wufu Mountain from 2015 to 2019 on photosynthetic characteristics and total flavone content in root tubers of Tetrastigma hemsleyanum Diels et Gilg seedlings grown in containers under the forest were investigated.The results show that from 2015 to 2019,the temperature in Wufu Mountain is the lowest in January,rising gradually from February to June,reaching the highest value from July to August,and decreasing gradually from September to December.With the gradual increase of temperature from January to June,the SPAD value,net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr),stomatal limitation(Ls),instantaneous carboxylation rate(CUE),initial fluorescence(Fo),maximum fluorescence(Fm),minimum fluorescence(F'o),maximum fluorescence under light(F'm),steady-state fluorescence(Fs),maximum light energy conversion efficiency(Fv/Fm),potential photochemical efficiency of PSⅡ(Fv/Fo),actual photochemical efficiency of PSⅡ(ΦPSⅡ),open PSⅡ reaction center capture excitation energy efficiency(F'v/F'm),photochemical quenching coefficient(qP)and total flavone content in root tuber increased significantly(P<0.05),intercellular CO2 concentration(Ci),water use efficiency(WUE)and non photochemical quenching coefficient(NPQ)decreased significantly(P<0.05).The temperature reached the highest value in July and August,and the chlorophyll content SPAD,Pn,Gs,Tr,Ls,CUE,Fo,Fm,F'o,F'm,Fs,Fv/Fm,Fv/Fo,ΦPSⅡ,F'v/F'm,qP and the contents of total flavonoids in root tuber reached the maximum,and Ci,WUE and NPQ reached the minimum.From September to December,the temperature gradually decreased,SPAD,Pn,Gs,Tr,Ls,CUE,Fo,Fm,F'o,F'm,Fs,Fv/Fm,Fv/Fo,ΦPSⅡ,F'v/F'm,qP and the contents of total flavonoids in root tuber decreased significantly(P<0.05),while Ci,WUE and NPQ increased significantly(P<0.05).The results of this experiment can provide the basis of meteorological factors(air temperature)for container ecological cultivation of Tetrastigma hemsleyanum Diels et Gilg seedlings under the forest.

monthly average air temperatureTetrastigma hemsleyanum Diels et Gilgseedlings grown in containers under the forestphotosynthetic characteristicsroot tubertotal flavone content

章健敏、林国卫、娄俊

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玉山县气象局, 江西 上饶 334700

上饶师范学院 生命科学学院, 江西 上饶 334001

上饶市广信区气象局, 江西 上饶 334100

月均气温 三叶青 林下容器栽培苗 光合特性 块根 总黄酮含量

2024

10.16178/j.issn.0528-9017.20230043

浙江农业科学
浙江省农业科学院,浙江大学

浙江农业科学

影响因子：0.523
ISSN：0528-9017
年,卷(期)：2024.65(3)
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