| 摘要 |
The formation of strobili is promoted in trees of the family Pinaceae by applying an auxin and one or more gibberellins selected from gibberellin A3, gibberellin A4, gibberellin A5, giberellin A7, gibberellin A9 and gibberellin A14. A preferred treatment comprises applying gibberellin A9 and an auxin and compositions comprising these substances are also disclosed. |
