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首页> 外文期刊>Acta Horticulturae >Monitoring Fusarium wilt in Hainan Province and preliminary pathogen characterisation.
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Monitoring Fusarium wilt in Hainan Province and preliminary pathogen characterisation.

机译：监测海南省枯萎病菌和初步病原体鉴定。

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摘要

In 2008, the status of Fusarium wilt on banana, caused by subtropical Fusarium oxysporum f. sp. cubense (Foc) race 4, in Hainan Province, China was monitored. The disease was found in 14 out of 18 cities and counties. The monitored area was 687.4 ha, out of which 53.8 ha were affected with a total of 33,268 infected banana plants. The disease affected 'Baxijiao' (AAA), 'Williams' (AAA), 'Fenjiao' (ABB) and 'Gaogangongjiao' (AA). Diseased plants were eradicated and replaced by paddy rice, corn or disease-resistant cultivars, like 'Aigangongjiao' (AA), 'Nongke No. 1' (AAA), 'Guangfen No. 2' (ABB) and others, as a control measure. Pathogenicity tests confirmed that twelve Foc strains isolated from 'Fenjiao' belonged to race 1, and six Foc strains from 'Baxijiao' were race 4. The disease severity index varied among strains. RAPD analysis could differentiate geographic origins of strains of race 1 and race 4, approximately distinguish strains of race 1 and race 4. The twelve race 1 strains isolated from 'Fenjiao' were assigned to VCG 1, and the six race 4 strains isolated from 'Baxijiao' were assigned to VCG 2, showing that vegetative compatibility groups of Foc strains are related to race (Note: VCG 1 and 2 codes were established by the research team, because the nit testers for VCG analyses of Foc were not available).
机译：2008年，亚热带香蕉枯萎病导致香蕉枯萎病的发生。 sp。监测了中国海南省的小豆（Foc）种族4。在18个城市和县中的14个中发现了这种疾病。监测面积为687.4公顷，其中53.8公顷受到了33,268株受感染香蕉植物的影响。该病影响了“ Baxijiao”（AAA），“ Williams”（AAA），“ Fenjiao”（ABB）和“ Gaogangongjiao”（AA）。病害植物被根除，并以水稻，玉米或抗病栽培品种代替，例如“爱岗功椒”（AA），“农科1号”（AAA），“广芬2号”（ABB）等作为对照。测量。致病性测试证实，从“粉角”中分离出的12株Foc属于第1种族，而从“ Baxijiao”中分离出的6株Foc属于第4种族。 RAPD分析可以区分种族1和种族4的菌株的地理起源，大致区分种族1和种族4的菌株。从“粉角”中分离出的12个种族1菌株被分配给VCG 1，从“分离”中分离出的六个种族4菌株。将Baxijiao'分配给VCG 2，这表明Foc菌株的营养相容性组与种族有关（注意：VCG 1和2代码由研究小组建立，因为用于对Voc分析的 nit 测试人员Foc不可用）。

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