广西水稻品种抗水稻南方黑条矮缩病鉴定

Resistance identification of rice cultivars to southern rice blackstreaked dwarf disease in Guangxi

【目的】评价广西生产用水稻品种对水稻南方黑条矮缩病的抗病性,为病害综合防控提供依据。【方法】收集广西主栽水稻品种45份和市场销售的水稻品种53份,采用集团接种法进行室内人工接种抗病性鉴定。【结果】测定的98个水稻品种中,表现高感的品种96个,占测试品种的97.96%;表现中感的品种两个,占测试品种的2.04%。测试品种中未发现抗病品种。【结论】测定的98份广西生产用水稻品种对水稻南方黑条矮缩病均表现感病,需加大对该病害的综合防控及水稻种质资源的抗病筛选利用。

[Objective]The resistance of rice cuhivars for production to southern rice black-streaked dwarf disease （SRBSDD） in Guangxi was evaluated to provide references for integrated control of SRBSDD. [Method] Mass inoculation was used for rice resistance evaluation to SRBSDD in this research. The tested rice cuhivars included 45 main rice cuhivars and 53 native rice cultivars in market of Guangxi. [Result]Among the studied 98 cuhivars, 96 cultivars were highly susceptible to SRBSDD, accounting for 97.96%. Two cuhivars were moderately susceptible, accounting for 2.04%. No resistant rice cul- tivar was found in the trial. [ Conclusion ]Main rice cuhivars for production in Guangxi were susceptible to SRBSDD. Hence, integrated control of SRBSDD and the screening of rice germplasm for resistance should be strengthened in the future.