Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple

The effect of shading (i.e. reduction of sunlight availability) on fruit growth physiology has been widely studied in apple (Malus domestica Borkh.), but little knowledge exist about fruit growth responses to changes in the light spectrum. The aim of the present research was to study the effect of u...

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Autores principales:	Bastías,Richard M, Manfrini,Luigi, Corelli Grappadelli,Luca
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Sunlight spectrum management fruit size photosynthesis morphogenesis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200010
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spelling	oai:scielo:S0718-583920120002000102018-10-01Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in AppleBastías,Richard MManfrini,LuigiCorelli Grappadelli,Luca Sunlight spectrum management fruit size photosynthesis morphogenesis The effect of shading (i.e. reduction of sunlight availability) on fruit growth physiology has been widely studied in apple (Malus domestica Borkh.), but little knowledge exist about fruit growth responses to changes in the light spectrum. The aim of the present research was to study the effect of use of colored nets with differential sunlight transmission in the blue (B, 400-500 nm), red (R, 600-700 nm) and far-red (FR, 700-800 nm) spectra on apple fruit growth and physiological associated responses. Three year old ’Fuji’ apple trees were covered with 40% photo-selective blue and red shade nets, 40% neutral grey shade net, and 20% neutral white net as control. Red and blue net reduced in the same proportion (27%) the photosynthetically active radiation with respect to control. However, blue net increased by 30% and reduced by 10% the B:R and R:FR the light relations, respectively. Maximal fruit growth rate under blue and grey nets was 15-20% greater than control. Fruit weight under blue net was 17% greater than control, but no significant differences in fruit weight were found among red net and control. Leaf photosynthesis and total leaf area under blue net were 28% and 30% higher than control, respectively; with ensuing positive effect on tree net C assimilation rate and total dry matter production. Results suggest that shifting the B, R, and FR light composition with photo-selective nets could be a useful tool to manipulate the photosynthetic and morphogenetic process regulating the carbohydrate availability for apple fruit growth.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.2 20122012-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200010en10.4067/S0718-58392012000200010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sunlight spectrum management fruit size photosynthesis morphogenesis
spellingShingle	Sunlight spectrum management fruit size photosynthesis morphogenesis Bastías,Richard M Manfrini,Luigi Corelli Grappadelli,Luca Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
description	The effect of shading (i.e. reduction of sunlight availability) on fruit growth physiology has been widely studied in apple (Malus domestica Borkh.), but little knowledge exist about fruit growth responses to changes in the light spectrum. The aim of the present research was to study the effect of use of colored nets with differential sunlight transmission in the blue (B, 400-500 nm), red (R, 600-700 nm) and far-red (FR, 700-800 nm) spectra on apple fruit growth and physiological associated responses. Three year old ’Fuji’ apple trees were covered with 40% photo-selective blue and red shade nets, 40% neutral grey shade net, and 20% neutral white net as control. Red and blue net reduced in the same proportion (27%) the photosynthetically active radiation with respect to control. However, blue net increased by 30% and reduced by 10% the B:R and R:FR the light relations, respectively. Maximal fruit growth rate under blue and grey nets was 15-20% greater than control. Fruit weight under blue net was 17% greater than control, but no significant differences in fruit weight were found among red net and control. Leaf photosynthesis and total leaf area under blue net were 28% and 30% higher than control, respectively; with ensuing positive effect on tree net C assimilation rate and total dry matter production. Results suggest that shifting the B, R, and FR light composition with photo-selective nets could be a useful tool to manipulate the photosynthetic and morphogenetic process regulating the carbohydrate availability for apple fruit growth.
author	Bastías,Richard M Manfrini,Luigi Corelli Grappadelli,Luca
author_facet	Bastías,Richard M Manfrini,Luigi Corelli Grappadelli,Luca
author_sort	Bastías,Richard M
title	Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
title_short	Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
title_full	Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
title_fullStr	Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
title_full_unstemmed	Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple
title_sort	exploring the potential use of photo-selective nets for fruit growth regulation in apple
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200010
work_keys_str_mv	AT bastiasrichardm exploringthepotentialuseofphotoselectivenetsforfruitgrowthregulationinapple AT manfriniluigi exploringthepotentialuseofphotoselectivenetsforfruitgrowthregulationinapple AT corelligrappadelliluca exploringthepotentialuseofphotoselectivenetsforfruitgrowthregulationinapple
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Exploring the Potential use of Photo-Selective Nets for Fruit Growth Regulation in Apple

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