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杨树有性杂交是父本的花粉在母本雌花内通过受精作用形成种子的过程,所产生的杂种一般具有显著的杂种优势,比亲本生长快,抗性强,生活力高,能更完善、更多样地利用外界条件。人工有性杂交的方法在杨树育种中得到广泛的应用,如北京杨、合作杨、银毛杨、箭钻杨就是利用这种方法培育出来的优良杨树新品种。为了进一步开展这项工作,我们简要地介绍一下杨树人工有性杂交的方法,供大家参考。
Poplar sexual hybridization is the process in which the pollen of a male parent forms a seed through fertilization within the female parent flower. The hybrid produced generally has significant heterosis, which is faster than the parental growth, strong resistance and high viability, and can be more perfect , Make more use of external conditions. The method of artificial sexual hybridization has been widely used in poplar breeding. For example, Populus euphratica, Populus euphratica, Populus trichocarpa and Populus euphratica are the new poplar varieties cultivated by this method. In order to further carry out this work, we briefly introduce the method of artificial hybridization of poplar for your reference.