Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

The response to P and water deficiencies of forage Lotus species has not been sufficiently studied in the Andisol and Vertisol soil orders in Chile’s marginal areas. A pot experiment under cover was carried out between October 2007 and March 2008 to study the effects of P and soil water av...

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Autores principales:	Castillo,Carolina, Acuña,Hernán, Zagal,Erick, Inostroza,Luis
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Lotus spp. volcanic soils clay soils mycorrhizal colonization
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000100005
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spelling	oai:scielo:S0718-583920130001000052018-10-01Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experimentCastillo,CarolinaAcuña,HernánZagal,ErickInostroza,Luis Lotus spp. volcanic soils clay soils mycorrhizal colonization The response to P and water deficiencies of forage Lotus species has not been sufficiently studied in the Andisol and Vertisol soil orders in Chile’s marginal areas. A pot experiment under cover was carried out between October 2007 and March 2008 to study the effects of P and soil water availability (SWA) on DM production, P absorption, and P use efficiency in Lotus spp. The experiment included three Lotus (L. corniculatus L., L. tenuis Waldst. & Kit. ex Willd., and L. uliginosus Schkuhr) species, two soils (Andisol and Vertisol), two contrasting P levels (low and high), and two SWA levels (10% and 100%). A completely randomized design with a 3 x 2 x 2 x 2 factorial arrangement with four replicates was used. Accumulated shoot and root DM, P absorption and efficiency, and arbuscular mycorrhizal (AM) colonization were measured. Phosphorus absorption was significantly higher in Andisol with 100% SWA and high P in the three species, which was reflected in P efficiency where the species exhibited higher P absorption efficiency (PAE) and P utilization efficiency (PUE) with low P, and mean of the three species with low P and high SWA. When the P level was low, L. uliginosus showed the highest PAE and L. corniculatus exhibited the highest PUE. Phosphorus efficiency was also influenced by AM colonization since on the average mycorrhization in the three species was significantly higher in the low P treatments. Differences existed among species for DM production, response to P, P absorption, PAE, and PUE.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000100005en10.4067/S0718-58392013000100005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Lotus spp. volcanic soils clay soils mycorrhizal colonization
spellingShingle	Lotus spp. volcanic soils clay soils mycorrhizal colonization Castillo,Carolina Acuña,Hernán Zagal,Erick Inostroza,Luis Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
description	The response to P and water deficiencies of forage Lotus species has not been sufficiently studied in the Andisol and Vertisol soil orders in Chile’s marginal areas. A pot experiment under cover was carried out between October 2007 and March 2008 to study the effects of P and soil water availability (SWA) on DM production, P absorption, and P use efficiency in Lotus spp. The experiment included three Lotus (L. corniculatus L., L. tenuis Waldst. & Kit. ex Willd., and L. uliginosus Schkuhr) species, two soils (Andisol and Vertisol), two contrasting P levels (low and high), and two SWA levels (10% and 100%). A completely randomized design with a 3 x 2 x 2 x 2 factorial arrangement with four replicates was used. Accumulated shoot and root DM, P absorption and efficiency, and arbuscular mycorrhizal (AM) colonization were measured. Phosphorus absorption was significantly higher in Andisol with 100% SWA and high P in the three species, which was reflected in P efficiency where the species exhibited higher P absorption efficiency (PAE) and P utilization efficiency (PUE) with low P, and mean of the three species with low P and high SWA. When the P level was low, L. uliginosus showed the highest PAE and L. corniculatus exhibited the highest PUE. Phosphorus efficiency was also influenced by AM colonization since on the average mycorrhization in the three species was significantly higher in the low P treatments. Differences existed among species for DM production, response to P, P absorption, PAE, and PUE.
author	Castillo,Carolina Acuña,Hernán Zagal,Erick Inostroza,Luis
author_facet	Castillo,Carolina Acuña,Hernán Zagal,Erick Inostroza,Luis
author_sort	Castillo,Carolina
title	Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
title_short	Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
title_full	Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
title_fullStr	Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
title_full_unstemmed	Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment
title_sort	phosphorus absorption and use efficiency by lotus spp. under water stress conditions in two soils: a pot experiment
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000100005
work_keys_str_mv	AT castillocarolina phosphorusabsorptionanduseefficiencybylotussppunderwaterstressconditionsintwosoilsapotexperiment AT acunahernan phosphorusabsorptionanduseefficiencybylotussppunderwaterstressconditionsintwosoilsapotexperiment AT zagalerick phosphorusabsorptionanduseefficiencybylotussppunderwaterstressconditionsintwosoilsapotexperiment AT inostrozaluis phosphorusabsorptionanduseefficiencybylotussppunderwaterstressconditionsintwosoilsapotexperiment
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Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

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