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Protein and hordein content in barley seeds as affected by nitrogen level and their relationship to beta-amylase activity

journal contribution
posted on 2023-05-16, 17:14 authored by Qi, JC, Zhang, GP, Meixue ZhouMeixue Zhou
Two barley cultivars differing in grain size and protein content were used to investigate the effects of nitrogen nutrition, cultivar and their interaction on grain protein content, hordein content and beta-amylase activity and the relationship between hordein content and beta-amylase activity during in vitro spike culture. The content of protein and hordein fraction, and beta-amylase activity in barley grains increased as the nitrogen level in culture solution increased. Grain protein content was significantly affected by nitrogen treatment and cultivar, and there was no significant interaction between nitrogen treatment and cultivar. Hordein content and beta-amylase activity were significantly affected by nitrogen treatment and cultivar as well as their interaction. Beta-amylase activity was positively correlated with grain protein and hordein contents, and the ratio of hordein B:C was negatively correlated with total protein content and beta-amylase activity. © 2005 Elsevier Ltd. All rights reserved.

Funding

Grains Research & Development Corporation

History

Publication title

Journal of Cereal Science

Volume

43

Pagination

102-107

ISSN

0733-5210

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Academic Press Ltd Elsevier Science Ltd

Place of publication

London, England

Repository Status

  • Restricted

Socio-economic Objectives

Barley

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    University Of Tasmania

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