Υ融合(Gamma fusing)是近年发展起来的一种利用Υ辐射进行原生质体融合(体细胞杂交)的育种新技术。采用这一方法,可以促使个别基因由一个物种渗入到另一个物种的染色体组内,实现有限的基因转移(limited gene transfer),从而在保留亲本之一全部优良性状的同时,改良其某个不良性状。目前,有关植物原生质体培养和原生质体融合(体细胞杂交)的研究工作越来越多了.可是到目前为止,能够将原生质体培养成植株的植物不过十几种,而且禾本科植物上成功的 Y fusion (Gamma fusing) is developed in recent years by using Y radiation protoplast fusion (somatic hybridization) breeding new technology. Using this approach, one gene can be forced to infiltrate into the genome of another species for limited gene transfer, thereby ameliorating one of the parent’s poor traits while preserving one of the parent’s fine traits Traits. At present, there are more and more researches on plant protoplast culture and protoplast fusion (somatic cell hybridization), but so far there are more than a dozen of plants capable of cultivating protoplasts into plants, and grasses have succeeded of