Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings

BACKGROUND: Prunella vulgaris L. is a medical plant cultivated in sloping, sun-shaded areas in China. Recently, owing to air-environmental stress, especially drought stress strongly inhibits plant growth and development, the appropriate fertilizer supply can alleviate these effects. However, these i...

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Autores principales:	Chen,Yuhang, Liu,Li, Guo,Qiaosheng, Zhu,Zaibiao, Zhang,Lixia
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2016
Materias:	Prunella vulgaris L N, P and K fertilizer Drought Photosynthesis Water use efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100012
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spelling	oai:scielo:S0716-976020160001000122016-12-01Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlingsChen,YuhangLiu,LiGuo,QiaoshengZhu,ZaibiaoZhang,Lixia Prunella vulgaris L N, P and K fertilizer Drought Photosynthesis Water use efficiency BACKGROUND: Prunella vulgaris L. is a medical plant cultivated in sloping, sun-shaded areas in China. Recently, owing to air-environmental stress, especially drought stress strongly inhibits plant growth and development, the appropriate fertilizer supply can alleviate these effects. However, these is little information about their effects on P. vulgaris growing in arid and semi-arid areas with limited water and fertilizer supply. RESULTS: In this study, water stress decreased the photosynthetic pigment contents, inhibited photosynthetic efficiency, induced photodamage in photosystem 2 (PS2), and decreased leaf instantaneous WUE (WUEi). The decreased net photosynthetic rate (Pn) under medium drought stress compared with the control might result from stomatal limitations. However, fertilizer supply improved photosynthetic capacity by increasing the photosynthetic pigment contents and enhancing photosynthetic efficiency under water deficit. Moreover, medium fertilization also increased WUEi under the two water conditions, but fertilizer supply did little to alleviate the PS2 photodamage caused by drought stress. Hence, drought stress was the primary limitation in the photosynthetic process of P. vulgaris seedlings, while the photosynthetic characteristics of the seedlings exhibited positive responses to fertilizer supply. CONCLUSIONS: Appropriate fertilizer supply is recommended to improve photosynthetic efficiency, enhance WUEi and alleviate photodamage under drought stress.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.49 20162016-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100012en10.1186/s40659-016-0069-4
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Prunella vulgaris L N, P and K fertilizer Drought Photosynthesis Water use efficiency
spellingShingle	Prunella vulgaris L N, P and K fertilizer Drought Photosynthesis Water use efficiency Chen,Yuhang Liu,Li Guo,Qiaosheng Zhu,Zaibiao Zhang,Lixia Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
description	BACKGROUND: Prunella vulgaris L. is a medical plant cultivated in sloping, sun-shaded areas in China. Recently, owing to air-environmental stress, especially drought stress strongly inhibits plant growth and development, the appropriate fertilizer supply can alleviate these effects. However, these is little information about their effects on P. vulgaris growing in arid and semi-arid areas with limited water and fertilizer supply. RESULTS: In this study, water stress decreased the photosynthetic pigment contents, inhibited photosynthetic efficiency, induced photodamage in photosystem 2 (PS2), and decreased leaf instantaneous WUE (WUEi). The decreased net photosynthetic rate (Pn) under medium drought stress compared with the control might result from stomatal limitations. However, fertilizer supply improved photosynthetic capacity by increasing the photosynthetic pigment contents and enhancing photosynthetic efficiency under water deficit. Moreover, medium fertilization also increased WUEi under the two water conditions, but fertilizer supply did little to alleviate the PS2 photodamage caused by drought stress. Hence, drought stress was the primary limitation in the photosynthetic process of P. vulgaris seedlings, while the photosynthetic characteristics of the seedlings exhibited positive responses to fertilizer supply. CONCLUSIONS: Appropriate fertilizer supply is recommended to improve photosynthetic efficiency, enhance WUEi and alleviate photodamage under drought stress.
author	Chen,Yuhang Liu,Li Guo,Qiaosheng Zhu,Zaibiao Zhang,Lixia
author_facet	Chen,Yuhang Liu,Li Guo,Qiaosheng Zhu,Zaibiao Zhang,Lixia
author_sort	Chen,Yuhang
title	Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
title_short	Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
title_full	Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
title_fullStr	Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
title_full_unstemmed	Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings
title_sort	effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of prunella vulgaris seedlings
publisher	Sociedad de Biología de Chile
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100012
work_keys_str_mv	AT chenyuhang effectsofdifferentwatermanagementoptionsandfertilizersupplyonphotosynthesisfluorescenceparametersandwateruseefficiencyofprunellavulgarisseedlings AT liuli effectsofdifferentwatermanagementoptionsandfertilizersupplyonphotosynthesisfluorescenceparametersandwateruseefficiencyofprunellavulgarisseedlings AT guoqiaosheng effectsofdifferentwatermanagementoptionsandfertilizersupplyonphotosynthesisfluorescenceparametersandwateruseefficiencyofprunellavulgarisseedlings AT zhuzaibiao effectsofdifferentwatermanagementoptionsandfertilizersupplyonphotosynthesisfluorescenceparametersandwateruseefficiencyofprunellavulgarisseedlings AT zhanglixia effectsofdifferentwatermanagementoptionsandfertilizersupplyonphotosynthesisfluorescenceparametersandwateruseefficiencyofprunellavulgarisseedlings
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Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlings

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