Submitted to: Annual Beet Sugar Development Foundation Research Report
Publication Type: Research Notes
Publication Acceptance Date: 6/1/2006
Publication Date: 7/1/2006
Citation: McGrath, J.M. 2006. Stress germination ring test with IIRB and field validation in Michigan. 2005 Annual Beet Sugar Development Foundation Research Report. p. D7-D9.
Technical Abstract: This test was conducted to validate field emergence on lines selected by European breeding companies for a ‘ring test’ to evaluate the water germination stress test developed at East Lansing for predicting relative field emergence. Water and hydrogen peroxide germination tests were conducted prior to field emergence testing. Stress conditions of water germinated seeds at room temperature counted at 96 h after immersion appeared to be a good predictor of seedlot potential and a better predictor of genetic potential, indicating that an emergence stress test such as the one developed may help predict field emergence. Field emergence of all seedlots in 2005 was good for all varieties. No significant differences were seen at the Saginaw, Michigan field site. In contrast, emergence at the East Lansing, Michigan field site showed significant differences and these were predicted by the water stress test.