1. School of Biological Sciences; University of Canterbury; Private Bag 4800 Christchurch New Zealand
2. School of Life Sciences; Yantai University; Yantai 264005 China
3. AgResearch Grasslands Research Centre; Tennent Drive, Private Bag 11008 Palmerston North New Zealand
4. Laboratory of Growth Regulators and Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science; Palacký University and Institute of Experimental Botany AS CR; Šlechtitelů 27 783 71 Olomouc Czech Republic