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Mn2+ tolerance in barley


Huang, X and Shabala, L and Shabala, SN and Rengel, Z and Zhang, G and Zhou, M, Mn2+ tolerance in barley, The 16th Australian BarleyTechnical Symposium, 8-11 September 2013, Melbourne, Australia (2013) [Conference Extract]


A rapid screening method for Mn2+ tolerance in barley was developed using two varieties with different waterlogging tolerance. In this screening protocol plants were treated with 1 mM Mn2+ after germination in a hydroponic system for ten days. Chlorophyll contents and Mn concentrations were measured at the end of the treatment. Chlorophyll content in most waterlogging tolerant genotypes (TX9425, Yerong, CPI and CM72) remained at, or above, 65% of the control value. In contrast, waterlogging sensitive genotypes, Franklin and Naso Nijo, showed much greater reduction in chlorophyll content, with relative SPAD value being less than 15% of the control. Mn concentrations in leaves of sensitive varieties Franklin and Gairdner were also up to 2.3 times higher than in tolerant genotypes. This screening protocol will be used to identify the QTL for Mn2+ tolerance in a DH population of Yerong/Franklin, and the position of the QTL will be compared to that of the QTL for waterlogging tolerance identified in our previous studies.

Item Details

Item Type:Conference Extract
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:Huang, X (Mr Xin Huang)
UTAS Author:Shabala, L (Associate Professor Lana Shabala)
UTAS Author:Shabala, SN (Professor Sergey Shabala)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:85563
Year Published:2013
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2013-07-18
Last Modified:2014-04-29

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