Characterizing barley seed macro- and micro-nutrients under multiple environmental conditions

W. T. Xue, A. Gianinetti, R. Wang, Z. J. Zhan, J. Yan, Y. Jiang, T. Fahima, G. Zhao, J. P. Cheng

Research output: Contribution to journalArticlepeer-review

Abstract

Crop seeds are the main staples in human diet, especially in undeveloped countries. In any case, the diet needs to be rich not only in macro-nutrients like carbohydrates and protein, but also in micro-nutrients. Nevertheless, both the macro- and micro-nutrients presented in seeds largely vary in consequence of field and environment conditions. In this research, 60 lines of a barley RILs population segregating for the SSR marker Hvm74, which is genetically linked to the GPC (grain protein content) locus (HvNAM-1), were studied in 4 environments (two growing years and two field managements) by carrying out a comprehensive profile of seed macro- (starch, total nitrogen and total soluble protein) and micro-nutrients (phytate, phenolics, flavonoids, Pi, Zn and Fe). Under field conditions, all the components were largely affected by the environment, but TN (total nitrogen) exhibited high genotype contribution, while micro-nutrients displayed higher genotype × environments interactions (GEI) than macro-nutrients. In order to approach the effects of carbon-nitrogen (C-N) balance on other seed components, two C/N ratios were calculated: C/TN (CNR1) and C/TSP (CNR2). CNR2 exhibited stronger negative correlations with all micro-nutrients. Hence, the significant GEI and its negative relationships with CNR2 highlighted the different characters of micro-nutrients in barley seeds.

Original languageEnglish
Pages (from-to)639-649
Number of pages11
JournalCereal Research Communications
Volume44
Issue number4
DOIs
StatePublished - Dec 2016

Bibliographical note

Funding Information:
This work was supported by the China-Israel cooperation program grants from the Ministry of Science and Technology in China (No. 2013DFA32200), and the Department of Science and Technology in Guizhou Province [No. Qian Ke He Wai G Zi (2012)7011].

Publisher Copyright:
© 2016 The Authors.

Keywords

  • Carbon/nitrogen ratio Hvm74
  • Genotype × environments interactions
  • Macro-nutrient
  • Micro-nutrient
  • Seed component

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

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