Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response

The aim of this study was to investigate the influence of arbuscular mycorrhizal fungi (AMF) Glomus mosseae (T.H. Nicolson & Gerd.) Gerd. & Trappe and Acaulospora laevis (Gerd. & Trappe) on linseed (Linum usitatissimum L.) growth response with phosphate solubilizing bacteria...

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Autores principales:	Neetu,Neetu, Aggarwal,Ashok, Tanwar,Anju, Alpa,Alpa
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	AM fungi P uptake P activity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200012
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spelling	oai:scielo:S0718-583920120002000122018-10-01Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth ResponseNeetu,NeetuAggarwal,AshokTanwar,AnjuAlpa,Alpa AM fungi P uptake P activity The aim of this study was to investigate the influence of arbuscular mycorrhizal fungi (AMF) Glomus mosseae (T.H. Nicolson & Gerd.) Gerd. & Trappe and Acaulospora laevis (Gerd. & Trappe) on linseed (Linum usitatissimum L.) growth response with phosphate solubilizing bacteria Pseudomonas fluorescens; different doses of superphosphate were used: 20 kg ha4 (half recommended dose), 40 kg ha4 (recommended dose), and 80 kg ha4 (double recommended dose) in earthen pots filled with sterilized soil under greenhouse conditions. Among all the growth parameters, the following were the highest in the G. mosseae + P. fluorescens combination at the medium concentration (recommended superphosphate dose): plant height (78.74 ± 1.8 cm), fresh shoot weight (3.45 ± 0.294 g), dry shoot weight (0.57 ± 0.007 g), fresh root weight (0.223 ± 0.023 g), dry root weight (0.036 ± 0.004 g), root length (17.67 ± 0.48 cm), AM spore number (94.4 ± 9.86), shoot (1.14 ± 0.115%) and root (1.29 ± 0.110%) P content, and acidic (0.447 ± 0.012 IU g-1 FW) and alkaline phosphatase activity (0.119 ± 0.008 IU g-1 FW). The percentage mycorrhizal root colonization with the A. laevis + P. fluorescens (86.86 ± 2.17%) combination and chlorophyll content with the G. mosseae + A. laevis + P. fluorescens (0.474 ± 0.009 mg g-1 FW) combination recorded the highest values at the low concentration (half recommended superphosphate dose) as compared with non-mycorrhizal plants (control). The high superphosphate dose clearly reduced or decreased all the growth parameters. Therefore, vigorous growth and maximum flax yield can be achieved by inoculating plants with AM fungi and P. fluorescens with the recommended dose or less than the recommended dose of superphosphate.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=S0718-58392012000200012en10.4067/S0718-58392012000200012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	AM fungi P uptake P activity
spellingShingle	AM fungi P uptake P activity Neetu,Neetu Aggarwal,Ashok Tanwar,Anju Alpa,Alpa Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
description	The aim of this study was to investigate the influence of arbuscular mycorrhizal fungi (AMF) Glomus mosseae (T.H. Nicolson & Gerd.) Gerd. & Trappe and Acaulospora laevis (Gerd. & Trappe) on linseed (Linum usitatissimum L.) growth response with phosphate solubilizing bacteria Pseudomonas fluorescens; different doses of superphosphate were used: 20 kg ha4 (half recommended dose), 40 kg ha4 (recommended dose), and 80 kg ha4 (double recommended dose) in earthen pots filled with sterilized soil under greenhouse conditions. Among all the growth parameters, the following were the highest in the G. mosseae + P. fluorescens combination at the medium concentration (recommended superphosphate dose): plant height (78.74 ± 1.8 cm), fresh shoot weight (3.45 ± 0.294 g), dry shoot weight (0.57 ± 0.007 g), fresh root weight (0.223 ± 0.023 g), dry root weight (0.036 ± 0.004 g), root length (17.67 ± 0.48 cm), AM spore number (94.4 ± 9.86), shoot (1.14 ± 0.115%) and root (1.29 ± 0.110%) P content, and acidic (0.447 ± 0.012 IU g-1 FW) and alkaline phosphatase activity (0.119 ± 0.008 IU g-1 FW). The percentage mycorrhizal root colonization with the A. laevis + P. fluorescens (86.86 ± 2.17%) combination and chlorophyll content with the G. mosseae + A. laevis + P. fluorescens (0.474 ± 0.009 mg g-1 FW) combination recorded the highest values at the low concentration (half recommended superphosphate dose) as compared with non-mycorrhizal plants (control). The high superphosphate dose clearly reduced or decreased all the growth parameters. Therefore, vigorous growth and maximum flax yield can be achieved by inoculating plants with AM fungi and P. fluorescens with the recommended dose or less than the recommended dose of superphosphate.
author	Neetu,Neetu Aggarwal,Ashok Tanwar,Anju Alpa,Alpa
author_facet	Neetu,Neetu Aggarwal,Ashok Tanwar,Anju Alpa,Alpa
author_sort	Neetu,Neetu
title	Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
title_short	Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
title_full	Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
title_fullStr	Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
title_full_unstemmed	Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response
title_sort	influence of arbuscular mycorrhizal fungi and pseudomonas fluorescens at different superphosphate levels on linseed (linum usitatissimum l.) growth response
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200012
work_keys_str_mv	AT neetuneetu influenceofarbuscularmycorrhizalfungiandpseudomonasfluorescensatdifferentsuperphosphatelevelsonlinseedlinumusitatissimumlgrowthresponse AT aggarwalashok influenceofarbuscularmycorrhizalfungiandpseudomonasfluorescensatdifferentsuperphosphatelevelsonlinseedlinumusitatissimumlgrowthresponse AT tanwaranju influenceofarbuscularmycorrhizalfungiandpseudomonasfluorescensatdifferentsuperphosphatelevelsonlinseedlinumusitatissimumlgrowthresponse AT alpaalpa influenceofarbuscularmycorrhizalfungiandpseudomonasfluorescensatdifferentsuperphosphatelevelsonlinseedlinumusitatissimumlgrowthresponse
_version_	1714205310705467392

Influence of Arbuscular Mycorrhizal Fungi and Pseudomonas fluorescens at Different Superphosphate Levels on Linseed (Linum usitatissimum L.) Growth Response

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