甘蔗ROC22广西引种10年效果分析

Summary of ROC22 Introduction and Extension for 10 Years in Guangxi

1998年,广西从台湾引进甘蔗新品种ROC22,至2007年,种植面积已占当年总面积的62%以上。本文总结该品种引种10年来的引种效果,分析其潜在利用价值。ROC22与对照品种桂糖11号相比,蔗糖分含量提高0.66个百分点,原料蔗单产和蔗糖产量分别增加15.82%、22.2%;10年累计种植180.34万hm2,年均推广速度132.74%,新增效益223亿元,2005～2007年推广种植面积连续居广西甘蔗品种首位,其中2007年为57.84万hm2,占当年广西甘蔗面积的62.1%、全国甘蔗面积35%以上。ROC22在甘蔗育种亲本选择和未来蔗糖生产上都有重大的持续利用价值。

The planting area of ROC22, which was a new varieties of sugarcane introduced from Taiwan in 1998, accounted for 62% or more of the total area in 2007 in Guangxi - China＇s largest sugar-producing areas. The paper summarized the economic benefits and successful experience of 10 years of introduction and promotion, analyzed the potential value and importance of sustainable utilization of ROC22. Compared with the control varieties Guitang 11, ROC22 has 0.66 increase in sugar content percentage, increased by 15.82%, 22.2% respectively in raw sugarcane yield and sugar yield per unit area. ROC22 soon became a predominant varietiy of sugarcane in Guangxi, and its cultivating areas accumulated 1.8034 million hectares in 10 years, with an average annual increasing rate of 132.74%. A benefit of 22.3 billion yuan （conservative estimates） was obtained. Its cultivation areas in 2005-2007 remained the first among sugarcane varieties in Guangxi. The cultivation area of ROC22 was 578,400 hectares in 2007 in Guangxi, accounting for 62.1% of Guangxi total, and more than 35% of nationwide total that year. ROC22 has a significant sustainable utilization value in sugarcane parental selection and sugar production in the future.