Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile

In cereals cultivated in Southern Chilean Andosols, arbuscular mycorrhizal (AM) fungi may play a main role for phosphorus (P) uptake. Because P acquisition at early growth stages is crucial for cereals, we investigated the development of indigenous AM during the first 45 days after planting of two w...

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Autores principales:	Castillo,C. G, Puccio,F, Morales,D, Borie,F, Sieverding,E
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300012
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spelling	oai:scielo:S0718-951620120003000122014-03-10Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern ChileCastillo,C. GPuccio,FMorales,DBorie,FSieverding,EIn cereals cultivated in Southern Chilean Andosols, arbuscular mycorrhizal (AM) fungi may play a main role for phosphorus (P) uptake. Because P acquisition at early growth stages is crucial for cereals, we investigated the development of indigenous AM during the first 45 days after planting of two wheat, barley and oats varieties in two typical Andosols of the region, under plastic house. Minimum temperatures were between - 5°C and + 5°C at night and maximum between 18°C and 30°C during day. The results showed that root biomass of all species increased in both soils until 30 days and remained constant thereafter until 45 days. The intensity of AM infection (root area and root biomass infected) was low at 15 days, increased slightly from 15 to 30 days and increased sharply and significantly from 30 to 45 days. Plant species and varieties differed in root biomass formation but not in frequency and intensity of infection with AM structures. Thus, those cereals species and varieties with more root production had higher total mycorrhizal root biomass, and those may potentially benefit more from AM. It is also concluded that during early growth stages cereals invest first into root development and then into AM fungal biomass.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300012en10.4067/S0718-95162012005000012
institution	Scielo Chile
collection	Scielo Chile
language	English
description	In cereals cultivated in Southern Chilean Andosols, arbuscular mycorrhizal (AM) fungi may play a main role for phosphorus (P) uptake. Because P acquisition at early growth stages is crucial for cereals, we investigated the development of indigenous AM during the first 45 days after planting of two wheat, barley and oats varieties in two typical Andosols of the region, under plastic house. Minimum temperatures were between - 5°C and + 5°C at night and maximum between 18°C and 30°C during day. The results showed that root biomass of all species increased in both soils until 30 days and remained constant thereafter until 45 days. The intensity of AM infection (root area and root biomass infected) was low at 15 days, increased slightly from 15 to 30 days and increased sharply and significantly from 30 to 45 days. Plant species and varieties differed in root biomass formation but not in frequency and intensity of infection with AM structures. Thus, those cereals species and varieties with more root production had higher total mycorrhizal root biomass, and those may potentially benefit more from AM. It is also concluded that during early growth stages cereals invest first into root development and then into AM fungal biomass.
author	Castillo,C. G Puccio,F Morales,D Borie,F Sieverding,E
spellingShingle	Castillo,C. G Puccio,F Morales,D Borie,F Sieverding,E Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
author_facet	Castillo,C. G Puccio,F Morales,D Borie,F Sieverding,E
author_sort	Castillo,C. G
title	Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
title_short	Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
title_full	Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
title_fullStr	Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
title_full_unstemmed	Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile
title_sort	early arbuscular mycorrhiza colonization of wheat, barley and oats in andosols of southern chile
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300012
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Early arbuscular mycorrhiza colonization of wheat, barley and oats in Andosols of southern Chile

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