| 1 | Plant growth hormones can be estimated by their effect in causing curvature of oat coleoptiles. | |
| 2 | This may cause tissue weakening, resulting in reduction of the mechanical resistance to the growth potential of the coleoptile. | |
| 3 | Moreover, it was found that the coleoptile of Wen6 became purple with the ion beam implantation. | |
| 4 | The results indicated that the coleoptile and embryonal axis grew before the radicle and plumule in the stage of germination . | |
| 5 | The results showed that water stress restrained the germinative ratio of wheat seeds and the growth of coleoptiles and main radicles. |