广西蔗区新台糖22号种性退化现状分析及对策措施

Analysis and countermeasures of the degradation status of sugarcane variety ROC22 in Guangxi

【目的】调查分析新台糖22号甘蔗品种种性退化的原因,提出相关对策措施促进蔗糖产业健康可持续发展。【方法】组织专家进行深入调研,根据调研报告对新台糖22号种性退化状况进行分析并提出了相应的对策措施。【结果】导致新台糖22号种性退化的原因有:推广年份过久,蔗病积累多;未能进行有效轮作;脱毒健康种苗供给未能实现;良种基地和良种繁育基地建设薄弱,良种良法推广脱节;甘蔗种苗投放管理欠规范,且未重视品种检疫等。【建议】应加快甘蔗新品种选育的技术创新、建立和完善甘蔗健康种苗体系、加快甘蔗良种繁育基地的建设、加大甘蔗良种良法示范的推广力度、整合政府资源、形成统一的投入和补贴体系,以促进广西蔗糖产业健康持续发展。

[Objective ]The cause of traits degeneration in the sugarcane variety ROC22 was investigated and analyzed in order to propose relevant countermeasures for promoting the healthy and sustainable development of sugar industry. [Method]An investigation was conducted. According to the census, the degradation conditions of the variety ROC22 were analyzed and the corresponding countermeasures were put forward. [Result ]Causes of ROC22 degeneration included： promotion duration lasted too long, which caused for serious diseases accumulation; unable to perform effective rotation; failure to supply enough healthy and virus-free seedcanes; perform inappropriate management on seedcane supply; pay lit- tle attention to variety; lack of thoroughbred base for seedcane propagation. [Conclusion]In order to promote the healthy and sustainable development of sugar industry in Guangxi, it was recommended to accelerate new sugarcane breeding and technological innovation, establish and perfect the system of healthy seedcane production, construct sugarcane and breed- ing base, pay more attention to the demonstrative extension of new elite sugarcane varieties, integrate government re- sources, and form uniformed input and subsidy system.