Ver historia del Ing. Agr. Jorge Gesumaría

Visitas Totales: 523509 | Visitas hoy: 407 | Usuarios Online: 3

ABA action on the production and redistribution of field-grown maize carbohydrates in semiarid regions

Claudia Travaglia - Guillermo Balboa - Gabriel Espósito - Herminda Reinoso
Plant Growth Regul DOI 10.1007/s10725-012-9657-7
Received: 11 October 2011 / Accepted: 19 January 2012
Springer Science+Business Media B.V. 2012

The aim of this study is to analyze the response of exogenous abscisic acid (ABA) application in plants grown under field conditions in semiarid zones in order to increase maize production. For this, it is necessary to understand the factors, such as the size and capacity of transport system involved in the mobilization and distribution of assimilates. The vascular transport capacity of ABA-treated and control plants was compared in terms of number of vascular bundles, phloem area per bundle, and the proportion of phloem in the ear peduncle of female inflorescences. This study showed that the application of exogenous ABA in field-grown maize under moderate drought allows a greater amount of maize production, an increase in the level of photosynthetic pigments, the carbohydrates remobilization to grain, and the capacity of this transport by an increase in the number of vascular bundles and the phloem area in peduncle. Evidence obtained in this study suggests that ABA could help improve agricultural production in rain-fed crops in which irrigation is not possible. This will allow us to follow a new technological strategy to increase the effective filling of organs during crops in unfavorable water conditions.

Keywords Abscisic acid (ABA)  Maize  Carbohydrates  Phloem  Yield  Water stress

Información de contacto

Departamento de Producción Vegetal, Facultad de Agronomía y Veterinaria - Universidad Nacional de Río Cuarto 

Ruta 36 km 601, Río Cuarto, Córdoba - Argentina   +54 (0358) 467-6159 / 504  / 509


PRIMERA JORNADA TÉCNICA - PROD... La Facultad de Agronomía y Veterinaria de la Universidad Nacional de Río Cuarto, lo invita a partici... Leer mas
Libro "El Cultivo de Maní en C... A partir del mes de mayo de 2017 se encuentra disponible en nuestro sitio web la Segunda Edición amp... Leer mas
Conferencia el Arbolado en lo ... Jueves 23 de marzo de 2017. Salon Blanco, Municipaliodad de Río Cuarto Conferencia Gratuita Desc... Leer mas
Agronomia Acreditada para Merc... La Facultad de Agronomía y Veterinaria tiene el agrado de informar sobre la acreditación de la carre... Leer mas


Producción Vegetal © 2014 - Todos los derechos reservados -  Responsables de Contenidos: Ing. Agr. Federico Morla - Ing. Agr. Guillermo Balboa 

ISSN 2422-5479