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芡叶瘤病菌生物学特性及防治药剂筛选
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作者 李美霞 王晓飞 +5 位作者 陈亚丽 钱新 周长勇 付佑胜 曹凯歌 刘伟中 《中国农学通报》 2024年第23期135-142,共8页
芡叶瘤病为水生蔬菜芡上的重要病害之一,为明确芡叶瘤病菌保藏的最佳条件并筛选出防控该病害的杀菌剂,采用生长速率法研究温度、pH、碳源及氮源对病原菌菌丝生长的影响,同时室内毒力测定杀菌剂单剂及混剂对病原菌的抑制率并开展单剂对... 芡叶瘤病为水生蔬菜芡上的重要病害之一,为明确芡叶瘤病菌保藏的最佳条件并筛选出防控该病害的杀菌剂,采用生长速率法研究温度、pH、碳源及氮源对病原菌菌丝生长的影响,同时室内毒力测定杀菌剂单剂及混剂对病原菌的抑制率并开展单剂对芡叶瘤病防效的田间药效试验。结果表明该病原菌丝最适生长温度为30℃,最适pH 7;最适碳源和氮源分别为葡萄糖和硝酸铵。室内毒力测定结果表明戊唑醇、吡唑醚菌酯、丙硫菌唑、苯醚甲环唑、氟环唑、丙环唑、嘧菌酯对供试病原菌的EC_(50)值分别为0.8992、0.6531、0.1650、1.8751、0.9227、2.3432和6.0517 mg/L,其中戊唑醇、吡唑醚菌酯和丙硫菌唑抑菌活性较强;田间药效试验结果表明,戊唑醇、吡唑醚菌酯和丙硫菌唑对芡叶瘤病防效分别为94.36%、85.64%和82.56%;室内联合毒力测定试验选择了戊唑醇和吡唑醚菌酯按照质量比1:1、1:2、1:3、1:4、1:5、5:1、4:1、3:1、2:1组合,5:1配比时有增效作用,SR为1.5029,可在生产上用于芡叶瘤病防控。 展开更多
关键词 叶瘤病 原菌保藏条件 生物学特性 药剂筛选 生长速率法 毒力测定 田间药效试验
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芡实叶斑病和叶瘤病的发生规律和预测预报方法初探 被引量:2
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作者 徐建方 黄洁 +1 位作者 潘复生 鲍忠洲 《上海蔬菜》 2017年第3期45-47,共3页
近年来,随着芡实栽培面积的不断扩大,茨实病害发生普遍且呈不断加重趋势。本文通过调查、分析芡实叶斑病和叶瘤病的发生发展特点,初步总结出这两种病害的预测预报方法,为适时开展防治提供了理论依据和技术支撑。
关键词 芡实 叶斑 叶瘤病 发生 预测预报
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Pulmonary lymphoma: computed tomography features with pathologic correlation
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作者 Miaoyu Zeng Zhenjun Zhao +2 位作者 Jine Zhang Jinlei Li Yanhui Liu 《The Chinese-German Journal of Clinical Oncology》 CAS 2011年第11期632-635,共4页
Objective: The aim of this study was to analyze the CT and pathology features of pulmonary lymphoma and to improve the understanding of this disease. Methods: The CT findings of 23 cases with pulmonary lymphoma were r... Objective: The aim of this study was to analyze the CT and pathology features of pulmonary lymphoma and to improve the understanding of this disease. Methods: The CT findings of 23 cases with pulmonary lymphoma were retrospectively analyzed and correlated with histopathology. Results: Of the 23 cases with pulmonary lymphoma, there were Hodgkin lymphoma (5 cases) and non-Hodgkin lymphoma (18 cases). Multiple lesions were assessed in 16 cases and single lesion in 7 cases. The imaging findings were classified into 3 types: lobar and segmental involvement type (9/23 cases, 39.13%), nodular or mass-like involvement type (8/23 cases, 34.78%) and mixed type (6/23 cases, 26.09%). Air bronchogram sign (14/23 cases, 60.8%), CT angiogram sign (12/23 cases, 52.17%), ground glass opacity nodules (3/23 cases, 13.04%) and lesion across pulmonary lobes (4/23,17.39%) were the characteristic features of pulmonary lymphoma. Conclusion: Relative characteristic CT features of pulmonary lymphoma could be revealed, which shows clinical significance in the diagnosis of the disease. 展开更多
关键词 lung neoplasms LYMPHOMA TOMOGRAPHY X-ray computed PATHOLOGY
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