The transition from dormancy to germination is crucial for malt barley in the malt house. Seed dormancy is a quantitative trait and the depths of dormancy controlled by environment/genetics remain unclear. Quantitative trait locus (QTL) analysis was conducted to evaluate the number, location and phenotypic variation explained by QTLs from data collected from different years, sites and germination conditions in the Stirling 9 Harrington population. QTLs on 4H, 5H and 6H could explain 25, 81 and 12 % of phenotypic variations, respectively. Consistent QTLs were detected on 5HL and other QTLs were subjected to growth or germination conditions. Germination tests under light detected more QTLs than in the dark. The QTL at 5HL were more important for seed dormancy under the Mediterranean environment and evidence showed at least two genes controlling seed dormancy at 5HL.

Item Type:	Refereed Article
Keywords:	barley, seed dormancy, QTL, genotype x environment, interaction
Research Division:	Agricultural and Veterinary Sciences
Research Group:	Crop and Pasture Production
Research Field:	Crop and Pasture Improvement (Selection and Breeding)
Objective Division:	Plant Production and Plant Primary Products
Objective Group:	Winter Grains and Oilseeds
Objective Field:	Barley
UTAS Author:	Zhou, M (Professor Meixue Zhou)
ID Code:	90403
Year Published:	2014
Web of Science® Times Cited:	8
Deposited By:	Tasmanian Institute of Agriculture
Deposited On:	2014-04-03
Last Modified:	2017-11-06
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