Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)

The aims of this research were: to study the application of different tolerance Indices in traits measured in maize seedlings and to assess their possible use in the identification of genotypes tolerant to salinity. Sixty eight accessions were tested in two environments (0 and 100mM NaCl). We record...

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Autores principales: Collado, Mónica B., Aulicino, Mónica Beatriz, Arturi, Miguel Jacinto, Molina, María del Carmen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Agrarias
Ingeniería Forestal
maíz
Salinidad
estabilidad
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/47250
http://www.agro.unlp.edu.ar/revista/index.php/revagro/article/view/412/181
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-47250
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Ingeniería Forestal
maíz
Salinidad
estabilidad
spellingShingle Ciencias Agrarias
Ingeniería Forestal
maíz
Salinidad
estabilidad
Collado, Mónica B.
Aulicino, Mónica Beatriz
Arturi, Miguel Jacinto
Molina, María del Carmen
Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
topic_facet Ciencias Agrarias
Ingeniería Forestal
maíz
Salinidad
estabilidad
description The aims of this research were: to study the application of different tolerance Indices in traits measured in maize seedlings and to assess their possible use in the identification of genotypes tolerant to salinity. Sixty eight accessions were tested in two environments (0 and 100mM NaCl). We recorded length for radicle, shoot and third leaf and dry weight for root and shoot. Six stress tolerance indices were included: stress susceptibility (SSI), stress tolerance index (STI), stress tolerance (TOL), geometric mean productivity (GMP), mean productivity (MP) and yield stability index (YSI. Saline environments show a great spatial variation in relation to the salt concentration, for this reason it would be important to identify genotypes with stable behavior in a variety of saline soils. The biplot method allowed clustering accessions, traits measured in stress and non stress environment and salt tolerance Indexes in a same graphic, and showed that GMP, MP and STI indexes were the ones who helped identify the high yielding (group A genotype) and stable accessions, characterized by a high expression of these characters in both environments. Principal Component method showed that shoot dry weight and root length had the highest contribution and both were associated with these above indices in salinity. Therefore, in this study the accessions: 1, 7, 30, 33, 43 and 45 had stable values for the traits root length and shoot dry weight. Within this group the 30 and 33 entries were superior (bellowing to Group A genotypes) because they had the highest PC1 scores but its PC2 scores were rather small for the most of the variables.
format Articulo
Articulo
author Collado, Mónica B.
Aulicino, Mónica Beatriz
Arturi, Miguel Jacinto
Molina, María del Carmen
author_facet Collado, Mónica B.
Aulicino, Mónica Beatriz
Arturi, Miguel Jacinto
Molina, María del Carmen
author_sort Collado, Mónica B.
title Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
title_short Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
title_full Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
title_fullStr Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
title_full_unstemmed Evaluation of Salinity Tolerance Indices in seedling of maize (Zea mays L.)
title_sort evaluation of salinity tolerance indices in seedling of maize (zea mays l.)
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/47250
http://www.agro.unlp.edu.ar/revista/index.php/revagro/article/view/412/181
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