title   
  

Zinc (Zn) concentration of bread wheat grown under Mediterranean conditions as affected by genotype and soil/foliar Zn application

Gomez-Coronado, Francisco and Poblaciones, Maria J. and Almeida, Ana S. and Çakmak, İsmail Zinc (Zn) concentration of bread wheat grown under Mediterranean conditions as affected by genotype and soil/foliar Zn application. Plant and Soil . ISSN 0032-079X (Print) 1573-5036 (Online) Published Online First http://dx.doi.org/10.1007/s11104-015-2758-0

WarningThere is a more recent version of this item available.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s11104-015-2758-0

Abstract

Background and aims The combination of plant breeding and agronomic biofortification is the most reasonable approach to minimize zinc (Zn) deficiency-related problems in humans, but also in crop production. However, its efficiency and suitability under Mediterranean conditions and its effects on the grain yield and quality parameters are not well known. Methods Field experiments were conducted over two years in south-eastern Portugal, where soils are deficient in Zn. Ten advanced breeding lines and three commercial varieties of bread-making wheat were fertilized with four Zn treatments as following: i) control, ii) soil Zn application, iii) foliar Zn application and iv) both soil and foliar Zn application. Results Low rainfall produced 46 % more of grain Zn concentration but about 67 % less of grain yield. Grain Zn concentration varied greatly across treatments and cultivars with INIAV-1, INIAV-6, INIAV-9 and the commercial varieties being the most efficient. There were no significant increases in Zn concentrations due to soil Zn application, but gains higher than 20 mg kg−1 were obtained both with foliar and soil+foliar Zn applications. Grain yield was not significantly higher in foliar application, but increased to about 10 % in soil, and about 7 % in soil+foliar applications, respectively. Conclusions In soils with low Zn availability, the best strategy to improve grain Zn concentrations has been to select the most efficient cultivars for Zn accumulation with the added application of Zn in soil+foliar form.

Item Type:Article
Uncontrolled Keywords:Agronomic biofortification; Genetic biofortification; Wheat; Zinc deficiency; Zinc fertilizers
Subjects:UNSPECIFIED
ID Code:29089
Deposited By:İsmail Çakmak
Deposited On:25 Dec 2015 22:00
Last Modified:15 Nov 2016 11:38

Available Versions of this Item

Repository Staff Only: item control page