甘蔗新品种桂糖21号的选育

Breeding of A New Sugarcane Variety Guitang21

桂糖21号(原名桂糖94-119)是以赣蔗75-65为母本、崖城71-374为父本杂交经11年试验研究选育出的甘蔗新品种。广西区试及生产示范和全国区试及生产示范,11月～1月平均蔗糖分分别为14.30%、15.12%、14.91%、14.22%,高于对照品种桂糖11号和新台糖10号,与新台糖16号基本持平。公顷产蔗量分别为95.75t、102.00t、103.97t、117.86t,分别比对照增产8.1%、16.3%、17.3%、10.5%,公顷含糖量分别为13.70t、15.42t、15.50t、16.75t,分别比对照品种增12.7%、23.6%、17.8%、13.7%,增产增糖效果显著。

A new sugarcane variety, Guitang21 （original code GT94-119）, crossed from Ganzhe75-65 as the female parent with Yacheng71-374 as the male parent was registered. Based on experimental results from the Guangxi sugarcane district, the demonstration test and the national sugarcane district as well as demonstration test, the mean sucrose content of the variety from November to January were 14.30%, 15.12%, 14.91%, 14.22%, respectively, was higher than that of GT11 and ROC10, which was similar to ROC16. The cane yield was 95.75t, 102.00t, 103.97t, 117.86t per hectare, and increased by 8.1%, 16.3%, 17.3%, 10.5% in comparison with each check variety, respectively. The sugar yield was 13.70t, 15.42t, 15.50t, 16.75t per hectare and increased by 12.7%, 23.6%, 17.8%, 13.7% in comparison with each check variety, respectively. The effect of increasing yields and sugar was significant.