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Barley Phenology: Physiological and Molecular Mechanisms for Heading Date and Modelling of Genotype‐Environment‐Management Interactions


Ibrahim, A and Harrison, M and Meinke, H and Zhou, M, Barley Phenology: Physiological and Molecular Mechanisms for Heading Date and Modelling of Genotype‐Environment‐Management Interactions, Plant Growth, InTech, EC Rigobelo (ed), Rijeka, Croatia, pp. 175-202. ISBN 978-953-51-2771-0 (2016) [Research Book Chapter]


Copyright Statement

Copyright 2016 the Author(s). Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0)

DOI: doi:10.5772/64827


Barley heading date is important in adapting barley genotypes to different environments. Important factors affecting heading date in barley are temperatures, photoperiod and sowing date. Sowing date is a management option to influence heading date. It is used to reduce climatic risks such as frosts and water stress at sensitive periods during crop development. Three major genes control heading date in barley. These genes regulate photoperiod (Ppd-H1 and Ppd-H2), vernalization (Vrn- H1, Vrn-H2 and Vrn-H3) and the duration of the vegetative phase (Eps). The Ppd-H1 locus on chromosome 2(2H) regulates flowering time under long days. Ppd-H2 on 2H regulates phenology under short day length. Vernalization is mainly controlled by three loci (VRN-H1, VRN-H2 and VRN-H3), which interact in an epistatic fashion to determine vernalization sensitivity. Appropriate physiological and simulation frameworks such as that of APSIM-Barley are required to complement breeding efforts in order to determine the location of the Eps genes and describe and quantify the effects of environment and management on gene expression and their impact on yields and quality in barley.

Item Details

Item Type:Research Book Chapter
Keywords:barley, phenology, beeding, crop, model, APSIM, vernalisation, photoperiod, QTL
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Barley
UTAS Author:Ibrahim, A (Mr Ahmed Ibrahim)
UTAS Author:Harrison, M (Associate Professor Matthew Harrison)
UTAS Author:Meinke, H (Professor Holger Meinke)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:112352
Year Published:2016
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2016-11-04
Last Modified:2018-04-05
Downloads:178 View Download Statistics

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