Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas

The aim of the current research was to assess the plant responses of wheat lines and differential cultivars carrying Diuraphis noxia Kurdjumov resistance genes when subjected to aphid infestation, in order to determine the biotypic composition of RWA populations in Argentina. Eighteen lines and diff...

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Autores principales: Ricci, Elisabet Mónica, Cakir, Mehmet, Castro, Ana María
Formato: Articulo
Lenguaje:Español
Publicado: 2012
Materias:
Ciencias Agrarias
Resistencia genética
Trigo
Pulgón ruso del trigo
Cultivares diferenciales
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80949
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80949
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Agrarias
Resistencia genética
Trigo
Pulgón ruso del trigo
Cultivares diferenciales
spellingShingle Ciencias Agrarias
Resistencia genética
Trigo
Pulgón ruso del trigo
Cultivares diferenciales
Ricci, Elisabet Mónica
Cakir, Mehmet
Castro, Ana María
Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
topic_facet Ciencias Agrarias
Resistencia genética
Trigo
Pulgón ruso del trigo
Cultivares diferenciales
description The aim of the current research was to assess the plant responses of wheat lines and differential cultivars carrying Diuraphis noxia Kurdjumov resistance genes when subjected to aphid infestation, in order to determine the biotypic composition of RWA populations in Argentina. Eighteen lines and differential cultivars were sown in a greenhouse in a randomized design with two replicates. Two recordings of the chlorotic damage and the level of leaf rolling were made after 21 and 51 days from the infestation onset. The results were analyzed with an ANOVA and Tuckey Test (=0.05). After 21 days of infestation, two novel lines (14 and 1) showed the highest level of tolerance, with minor chlorotic damage. The differential cultivars carrying Dn2 and Dn7 resistance genes also were highly tolerant, Dn1 and dn3 resistance genes were moderately tolerant and those ones carrying Dn4 and Dn5 genes resulted seriously damaged. After 51 days of infestation, only the differential cultivar carrying Dn7 and the novel lines 14 and 1 maintained a high level of tolerance. Based on the current results, the RWA biotypes 1, 2* and 5* are present in Argentina, the last ones with different characteristics from biotypes 2 and 5 identified in EEUU. We conclude that improved cultivars in other countries can behave as susceptible against local populations.
format Articulo
Articulo
author Ricci, Elisabet Mónica
Cakir, Mehmet
Castro, Ana María
author_facet Ricci, Elisabet Mónica
Cakir, Mehmet
Castro, Ana María
author_sort Ricci, Elisabet Mónica
title Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
title_short Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
title_full Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
title_fullStr Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
title_full_unstemmed Diuraphis noxia (Hemiptera: Aphididae): Identificación de los biotipos presentes en poblaciones argentinas
title_sort diuraphis noxia (hemiptera: aphididae): identificación de los biotipos presentes en poblaciones argentinas
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/80949
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