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https://hdl.handle.net/2440/54987
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DC Field | Value | Language |
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dc.contributor.author | Hickey, L. | - |
dc.contributor.author | Dieters, M. | - |
dc.contributor.author | DeLacy, I. | - |
dc.contributor.author | Kravchuk, O. | - |
dc.contributor.author | Mares, D. | - |
dc.contributor.author | Banks, P. | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | Euphytica: international journal on plant breeding, 2009; 168(3):303-310 | - |
dc.identifier.issn | 0014-2336 | - |
dc.identifier.issn | 1573-5060 | - |
dc.identifier.uri | http://hdl.handle.net/2440/54987 | - |
dc.description.abstract | Pre-harvest sprouting (PHS) in wheat (Triticum aestivum L.) can be a significant problem, causing deleterious effects on grain quality. However, the adverse impacts of PHS can be reduced by introgressing genes controlling grain dormancy into white-grained bread wheat. Screening for grain dormancy typically involves germination testing of harvest-ripe grain grown in a glasshouse or field. However, the more uniform environmental conditions provided by temperature controlled glasshouses (i.e. controlled environmental conditions-CEC) may provide significant benefits for the assessment of grain dormancy. In this study, the dormancy phenotype of grain grown under CEC incorporating an extended photoperiod, was compared with 2 years of data from field grown material. Four dormant double haploid lines (derived from SW95-50213 and AUS1408) and two locally adapted non-dormant cultivars EGA Gregory and EGA Wills were compared in three replicated experiments grown under CEC (22 ± 3°C and 24 h photoperiod). The germination response of harvest-ripe grain was examined to assess the expression of grain dormancy. Two measures of germination, the predicted time to 50% germination (G50) and a weighted germination index, both clearly differentiated dormant and nondormant lines grown under CEC. In addition, levels of grain dormancy were similar to field-grown plants. These results demonstrated that CEC with an extended photoperiod can be used for rapid and reliable characterisation of grain dormancy in fixed lines of bread wheat. © Springer Science+Business Media B.V. 2009. | - |
dc.description.statementofresponsibility | Lee T. Hickey, Mark J. Dieters, Ian H. DeLacy, Olena Y. Kravchuk, Daryl J. Mares and Phillip M. Banks | - |
dc.language.iso | en | - |
dc.publisher | Kluwer Academic Publ | - |
dc.source.uri | http://dx.doi.org/10.1007/s10681-009-9929-0 | - |
dc.subject | Controlled temperature glasshouse | - |
dc.subject | Extended photoperiod | - |
dc.subject | Germination index | - |
dc.subject | Germination response | - |
dc.subject | Phenotypic screen | - |
dc.subject | Pre-harvest sprouting | - |
dc.subject | Wheat breeding | - |
dc.title | Grain dormancy in fixed lines of white-grained wheat (Triticum aestivum L.) grown under controlled environmental conditions | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/s10681-009-9929-0 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Kravchuk, O. [0000-0001-5291-3600] | - |
dc.identifier.orcid | Mares, D. [0000-0002-8165-8140] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest |
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