英国科学家发明了一种新的树苗育种方法,它能比常用的育种方法早收种子。新方法是,将小树苗放在温室中培育,1年后将溶解于酒精中的植物激素一赤霉酸注射到树内,刺激树木提早开花结果。 British scientists have invented a new sapling breeding method that harvested seeds earlier than commonly used breeding methods. The new method is to cultivate the sapling in a greenhouse and inject the plant hormone gibberellic acid, which is dissolved in alcohol, into the tree one year later to stimulate the early flowering of trees.