Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture

Abstract: Restricting plant available water in the soil can negatively affect pasture growth. Lolium perenne L. (Lp) and Bromus valdivianus Phil. (Bv) are important components of the permanent pastures in southern Chile. The aim of this study was to investigate the growth response of Lp and Bv when...

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Autores principales:	Descalzi,Constanza, Balocchi,Oscar, López,Ignacio, Kemp,Peter, Dörner,José
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Shoot and root production relative competitive index tiller number soil air capacity plant available water and pore continuity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000300617
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spelling	oai:scielo:S0718-951620180003006172019-01-09Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixtureDescalzi,ConstanzaBalocchi,OscarLópez,IgnacioKemp,PeterDörner,José Shoot and root production relative competitive index tiller number soil air capacity plant available water and pore continuity Abstract: Restricting plant available water in the soil can negatively affect pasture growth. Lolium perenne L. (Lp) and Bromus valdivianus Phil. (Bv) are important components of the permanent pastures in southern Chile. The aim of this study was to investigate the growth response of Lp and Bv when subjected to soil water restriction, contrasting soil structure conditions and growing as a single species pasture or in a mixture. The treatments were two soil physical conditions (undisturbed (US) and disturbed soil (DS)), two soil water restriction levels (optimum PAW and very-dry PAW), and three pastures (Bv, Lp and Bv+Lp). The US provided more water to plants regardless of the soil water restriction, and Bv and Lp presented more development (highest accumulated herbage mass) in US than in DS, under a similar soil water restriction. The soil structure and soil water restriction did not modify the tiller number of Bv, although Lp showed different tiller numbers under each condition, soil structure and soil water restriction. The conservation of the soil structure (undisturbed soil) has an important role in pasture productivity by providing a continuous pore system, which certainly improved the water accessibility for the growing species.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.3 20182018-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000300617en10.4067/S0718-95162018005001901
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Shoot and root production relative competitive index tiller number soil air capacity plant available water and pore continuity
spellingShingle	Shoot and root production relative competitive index tiller number soil air capacity plant available water and pore continuity Descalzi,Constanza Balocchi,Oscar López,Ignacio Kemp,Peter Dörner,José Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
description	Abstract: Restricting plant available water in the soil can negatively affect pasture growth. Lolium perenne L. (Lp) and Bromus valdivianus Phil. (Bv) are important components of the permanent pastures in southern Chile. The aim of this study was to investigate the growth response of Lp and Bv when subjected to soil water restriction, contrasting soil structure conditions and growing as a single species pasture or in a mixture. The treatments were two soil physical conditions (undisturbed (US) and disturbed soil (DS)), two soil water restriction levels (optimum PAW and very-dry PAW), and three pastures (Bv, Lp and Bv+Lp). The US provided more water to plants regardless of the soil water restriction, and Bv and Lp presented more development (highest accumulated herbage mass) in US than in DS, under a similar soil water restriction. The soil structure and soil water restriction did not modify the tiller number of Bv, although Lp showed different tiller numbers under each condition, soil structure and soil water restriction. The conservation of the soil structure (undisturbed soil) has an important role in pasture productivity by providing a continuous pore system, which certainly improved the water accessibility for the growing species.
author	Descalzi,Constanza Balocchi,Oscar López,Ignacio Kemp,Peter Dörner,José
author_facet	Descalzi,Constanza Balocchi,Oscar López,Ignacio Kemp,Peter Dörner,José
author_sort	Descalzi,Constanza
title	Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
title_short	Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
title_full	Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
title_fullStr	Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
title_full_unstemmed	Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture
title_sort	different soil structure and water conditions affect the growing response of lolium perenne l. and bromus valdivianus phil. growing alone or in mixture
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000300617
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Different soil structure and water conditions affect the growing response of Lolium perenne L. and Bromus valdivianus Phil. growing alone or in mixture

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