PHYSIOLOGICAL SPECIALIZATION OF PYRICULARIA-ORYZAE IN THE PHILIPPINES
PHYSIOLOGICAL SPECIALIZATION OF PYRICULARIA-ORYZAE IN THE PHILIPPINES
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DOI：
10.1094/pd-70-767
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发表时间：
1986-08-01
期刊：
影响因子：
4.5
通讯作者：
KHIN, MM
中科院分区：
文献类型：
--
作者：
BONMAN, JM;DEDIOS, TIV;KHIN, MM
稻瘟病病原体，Pyricularia piglium，从菲律宾的各个地区收集，并在广泛种植的菲律宾栽培品种和国际，日本和韩国的差异栽培品种集上进行测试。菲律宾IR品种的毒力菌株是常见的，从低地地区，这些品种广泛种植的样品，但毒力是罕见的，从三宝颜德尔南，其中高地栽培的菌株。对C22的毒力在三宝颜分离物中最常见。对IR56、UPLRi3和UPLRi5的毒力是罕见的。对新育成品种IR58、IR60和IR62均表现出一定的毒力。IR60和IR62的中间反应类型频率高于其它品种。三个鉴别组都不能充分区分农业上重要的菌株。在描述稻瘟病病原菌种群的毒力时，推荐使用在一个地理区域内生长的已建立的栽培品种的差集用于实际应用。
The rice blast pathogen, Pyricularia oryzae, was collected from various regions in the Philippines and tested on widely grown Philippine cultivars and the International, Japanese, and Korean differential cultivar sets. Isolates with virulence to Philippine IR cultivars were common in samples from lowland areas, where such cultivars are widely grown, but virulence was rare among isolates from Zamboanga del Sur, where upland rice is cultivated. Virulence to C22 was most frequent among Zamboanga del Sur isolates. Virulence to IR56, UPLRi3, and UPLRi5 was rare. Virulence to the newly released cultivars IR58, IR60, and IR62 was present in the fungus population. IR60 and IR62 showed a higher frequency of intermediate reaction types than other IR cultivars. None of the three differential sets could adequately differentiate agriculturally important isolates. Differential sets using established cultivars grown within a geographic region are recommended for practical use in describing the virulence of a blast pathogen population.