Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline

ABSTRACT Fulvic acid (FA) and superabsorbent polymer (SAP) are widely applied to improve crop growth and yield under water deficit conditions, but little is known about the changes in crop physiological parameters related to water deficit tolerance when SAP and FA are combined. A pot test with maize...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yang,Wei, Li,Pinfang, Guo,Shiwen, Song,Riquan, Yu,Jian
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Humic substances maize proline photosynthetic rate superabsorbent hydrogel
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000300435
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392019000300435
record_format	dspace
spelling	oai:scielo:S0718-583920190003004352019-07-18Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and prolineYang,WeiLi,PinfangGuo,ShiwenSong,RiquanYu,Jian Humic substances maize proline photosynthetic rate superabsorbent hydrogel ABSTRACT Fulvic acid (FA) and superabsorbent polymer (SAP) are widely applied to improve crop growth and yield under water deficit conditions, but little is known about the changes in crop physiological parameters related to water deficit tolerance when SAP and FA are combined. A pot test with maize (Zea mays L.) plants was conducted to examine the combined effect on photosynthesis, leaf water, proline, and growth under soil water deficit. Maize plants were subjected to two soil moisture conditions at the late crop growth phase: water deficit (WD, 50% field capacity) and well-watered (WW, 80% field capacity). The SAP (4.5 g m-2) was mixed into the soil layer at sowing and the FA solution (2 g L-1) was sprayed twice during water control. The combined application significantly improved maize grain yield under both watering conditions. The net photosynthesis rate, intrinsic quantum yield, fluorescent parameter (Fv/Fm), and chlorophyll content all improved with the combined application under both watering regimes. The compensating effect of combining chemicals on yield and photosynthesis parameters was higher than when applied alone under the two watering conditions. For prolonged and WD conditions, leaf proline and water content were higher under the combined treatment than when used separately. Under the WD conditions treated with FA and SAP, Fv/Fm had positive significant correlations with leaf water content and osmotic potential; leaf proline did not show any correlations with either the osmotic potential or leaf water content. This result demonstrated that SAP and FA could be combined to maintain high leaf proline and improve photosynthesis to mitigate adverse effects of moderate water storage on maize growthinfo:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.3 20192019-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000300435en10.4067/S0718-58392019000300435
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Humic substances maize proline photosynthetic rate superabsorbent hydrogel
spellingShingle	Humic substances maize proline photosynthetic rate superabsorbent hydrogel Yang,Wei Li,Pinfang Guo,Shiwen Song,Riquan Yu,Jian Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
description	ABSTRACT Fulvic acid (FA) and superabsorbent polymer (SAP) are widely applied to improve crop growth and yield under water deficit conditions, but little is known about the changes in crop physiological parameters related to water deficit tolerance when SAP and FA are combined. A pot test with maize (Zea mays L.) plants was conducted to examine the combined effect on photosynthesis, leaf water, proline, and growth under soil water deficit. Maize plants were subjected to two soil moisture conditions at the late crop growth phase: water deficit (WD, 50% field capacity) and well-watered (WW, 80% field capacity). The SAP (4.5 g m-2) was mixed into the soil layer at sowing and the FA solution (2 g L-1) was sprayed twice during water control. The combined application significantly improved maize grain yield under both watering conditions. The net photosynthesis rate, intrinsic quantum yield, fluorescent parameter (Fv/Fm), and chlorophyll content all improved with the combined application under both watering regimes. The compensating effect of combining chemicals on yield and photosynthesis parameters was higher than when applied alone under the two watering conditions. For prolonged and WD conditions, leaf proline and water content were higher under the combined treatment than when used separately. Under the WD conditions treated with FA and SAP, Fv/Fm had positive significant correlations with leaf water content and osmotic potential; leaf proline did not show any correlations with either the osmotic potential or leaf water content. This result demonstrated that SAP and FA could be combined to maintain high leaf proline and improve photosynthesis to mitigate adverse effects of moderate water storage on maize growth
author	Yang,Wei Li,Pinfang Guo,Shiwen Song,Riquan Yu,Jian
author_facet	Yang,Wei Li,Pinfang Guo,Shiwen Song,Riquan Yu,Jian
author_sort	Yang,Wei
title	Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
title_short	Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
title_full	Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
title_fullStr	Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
title_full_unstemmed	Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
title_sort	co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000300435
work_keys_str_mv	AT yangwei coapplicationofsoilsuperabsorbentpolymerandfoliarfulvicacidtoincreasetolerancetowaterdeficitmaizephotosynthesiswaterparametersandproline AT lipinfang coapplicationofsoilsuperabsorbentpolymerandfoliarfulvicacidtoincreasetolerancetowaterdeficitmaizephotosynthesiswaterparametersandproline AT guoshiwen coapplicationofsoilsuperabsorbentpolymerandfoliarfulvicacidtoincreasetolerancetowaterdeficitmaizephotosynthesiswaterparametersandproline AT songriquan coapplicationofsoilsuperabsorbentpolymerandfoliarfulvicacidtoincreasetolerancetowaterdeficitmaizephotosynthesiswaterparametersandproline AT yujian coapplicationofsoilsuperabsorbentpolymerandfoliarfulvicacidtoincreasetolerancetowaterdeficitmaizephotosynthesiswaterparametersandproline
_version_	1714205391312650240

Co-application of soil superabsorbent polymer and foliar fulvic acid to increase tolerance to water deficit maize: photosynthesis, water parameters, and proline

Ejemplares similares