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桉树是两性花。桉树花粉是指花蕾中的雄性生殖细胞,它作为雄配子体与雌配子体结合繁衍后代。桉树人工杂交育种,就是通过选择不同基因型的亲本,将两亲本的雌雄配子结合形成受精卵,培养出具有新的基因型的品种或类型。在常规杂交育种中遇到一个难题,就是两亲本开花时间不同,使拟选择的杂交组合往往不能付之实施。解决这一难题的途径,一是通过使用某些激素药物调节亲本之间的花期,使其相遇;另一方面是收集父本花粉加以贮藏,保持其生命力,在
Eucalyptus is a bisexual flower. Eucalyptus pollen refers to the bud in the male germ cells, which act as male gametes with the female gametophyte multiply offspring. Artificial hybrid breeding of eucalyptus, that is, by selecting the different genotypes of the parents, the male and female gametes combine to form fertilized eggs, cultivate a new genotype varieties or types. One of the problems encountered in conventional crossbred breeding is that the flowering time of the two parents is different so that the hybrid combination to be selected often can not be implemented. One way to solve this problem is to use some hormonal drugs to regulate the flowering period between parents so that they meet each other. On the other hand, collecting pollen from the parents for storage and maintaining their vitality,