论文部分内容阅读
用国际鉴别寄主及中国鉴别寄主分别在华南及菲律宾两地,同时多次重复研究、比较、分析两地的稻白叶枯病病原菌株的致病力。用人工剪接法测定明确了中国及菲律宾的病情分级调查记载标准呈显著相关,均能反映华南与菲律宾的病情调查实际结果。对4个菲律宾和5个华南菌群而言,“金南风”及“脱脱普”全感,而“早生爱国3号”和“爪哇14号”则全抗。“黄玉”对华南菌群Ⅰ及Ⅱ抵抗,但对Ⅲ及Ⅳ群与4个菲律宾菌群则全感。“IR8”及“Cas209”对5个华南菌群全感,而“DV85”则全抗。“IR20”及“IR1545-339”抗华南菌群Ⅰ、Ⅱ、Ⅲ及Ⅳ,但感染Ⅴ群。“TN1”及“金刚30”等品种全部感染华南及菲律宾菌群。“IR26”抗华南菌群Ⅰ、Ⅱ、Ⅲ、Ⅳ和菲律宾菌群Ⅰ,但感染华南菌群Ⅴ和菲律宾菌群Ⅱ、Ⅲ、Ⅳ。试验结果指出:华南菌群Ⅲ、Ⅳ的,致病力与菲律宾菌群Ⅰ相仿,而华南菌群Ⅴ则与菲律宾菌群Ⅳ相类似。此外,还研究比较分析了华南菌株与东南亚菲律宾、泰国和印度尼西亚诸国菌株间的致病力的异同情况。
The international identification host and the Chinese identification host respectively in southern China and the Philippines, while repeatedly repeating research, comparison and analysis of the pathogenicity of the two strains of rice bacterial blight pathogen. The artificial splicing method was used to confirm that there was a significant correlation between the recorded records of the grading survey of illness in China and the Philippines, which can reflect the actual results of the disease survey in South China and the Philippines. For 4 Filipino and 5 South China flora, the “Gold Southerly” and “Detach Pu” sense of the full, and “Patriotic Early 3” and “Java 14” are fully resistant. “Topaz” was resistant to I and II in the southern China, but was sensitive to Ⅲ and Ⅳ and 4 Philippine bacteria. “IR8” and “Cas209” on the five South China flora sense, and “DV85” is fully resistant. “IR20” and “IR1545-339” against southern China flora Ⅰ, Ⅱ, Ⅲ and Ⅳ, but infected Ⅴ group. “TN1” and “Diamond 30” and other species all infected southern China and the Philippines flora. “IR26” against southern China flora Ⅰ, Ⅱ, Ⅲ, Ⅳ and Philippine flora Ⅰ, but infected with southern flora Ⅴ and Philippine flora Ⅱ, Ⅲ, Ⅳ. The results showed that the pathogenicity of the strains Ⅲ and Ⅳ in South China was similar to that of the Philippines Ⅰ, while that in the South China was similar to that of the Philippines Ⅳ. In addition, the similarities and differences of pathogenicity between strains of South China and strains of the Philippines, Thailand and Indonesia in Southeast Asia were studied and compared.