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选用10个新台糖系列甘蔗品种ROC6、ROC9、ROC10、ROC11、ROC22、ROC23、ROC24、ROC25、ROC26和ROC28作父、母本与不同类型的甘蔗亲本杂交,选配组合45个,采用家系评价法对甘蔗有性杂交后代在干旱条件下的宿根性进行研究。结果表明:新台糖系列甘蔗品种作父、母本,对后代宿根蔗的影响较新植蔗更为显著,且宿根蔗遗传力表现高于新植蔗,对强宿根后代的选育贡献大,其作父本使用的效果优于作母本;其中,ROC25分别作父、母本使用时,两个植期重要性状的一般配合力(GCA)均较高,作父本或母本使用,选育出强宿根甘蔗品种的潜力均较大,是优良的甘蔗亲本。ROC11和ROC24作母本使用时优势明显,ROC23和ROC28作父本使用,选育出强宿根甘蔗品种的潜力大。
The parents and parents of 10 new sweet potato varieties ROC6, ROC9, ROC10, ROC11, ROC22, ROC23, ROC24, ROC25, ROC26 and ROC28 were crossed with different types of sugarcane parents. The rooting of sugarcane sexual hybrid progeny under drought conditions was studied. The results showed that the sugar cane varieties of Xintai were the parent and the female parent, which had more significant effects on the ratooning sugarcane of new generation than the new cane sugarcane, and the heritability of sugarcane was higher than that of new sugarcane, The effect of its father was better than that of the female parent. When ROC25 was used as the parent and the female parent respectively, the GCA of the two important traits at planting were higher, The potential of breeding strong sugarcane varieties are larger, is an excellent sugarcane parent. ROC11 and ROC24 as the female parent when using the obvious advantages, ROC23 and ROC28 used as a male parent, strong potential for breeding strong sugarcane roots.