杂交育种是利用有性杂交方法,创造新的变异类型。从育种发展史上看,杂交育种比选择育种前进了一步,为选育新品种又开辟了新的途径。一、杂交亲本的选择杂种后代的性状,是亲本性状的继承和发展,因而,能否正确选择亲本,就成为决定杂交育种成败的关键。杂交亲本的选择原则:1、亲本间主要性状上要互补,优 Hybrid breeding is the use of sexual hybridization methods to create a new type of mutation. In terms of the history of breeding, hybrid breeding has taken one step ahead of selective breeding and opened up new avenues for breeding new varieties. First, the choice of hybrid parent Hybrid traits traits, inheritance and development of the parent trait, therefore, the correct choice of the parent, has become the key to determine the success or failure of cross breeding. The principle of selection of hybrid parents: 1, the main characters on the parents to complement each other, excellent