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罗俊杰, 叶春雷, 欧巧明, 李进京, 陈 琛, 王 炜*.抗白粉病胡麻种质资源田间鉴定与筛选[J].植物保护,2019,45(5):259-262.
抗白粉病胡麻种质资源田间鉴定与筛选
Field identification and screening of oil flax resources withresistance to powdery mildew
投稿时间:2018-09-20  修订日期:2018-10-11
DOI:DOI: 10.16688/j.zwbh.2018407
中文关键词:  胡麻  白粉病  种质资源  抗性鉴定
英文关键词:oil flax  powdery mildew  germplasm resource  resistance identification
基金项目:甘肃省农业科学院科技支撑项目(2017GAAS35); 甘肃省农业科学院科技创新工程学科团队(2015GAAS02); 国家特色油料产业体系胡麻兰州综合试验站(GARS-17-SYZ-6)
作者单位
罗俊杰, 叶春雷, 欧巧明, 李进京, 陈 琛, 王 炜* 甘肃省农业科学院生物技术研究所, 兰州 730070 
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中文摘要:
      白粉病目前已成为影响胡麻产量和质量最常见的病害之一, 种植抗病品种是防控病害最经济环保的有效措施, 然而抗病亲本材料的缺乏已成为制约抗病品种选育的关键因素。为筛选出抗白粉病胡麻材料, 本研究在田间自然感病的条件下, 采用病情指数法对300份国内外胡麻种质资源材料进行了抗白粉病鉴定和评价。结果表明, 所有供试材料均程度不同地感染胡麻白粉病, 无免疫材料, 仅有5份材料为中抗; 其余295份均为感病材料, 其中8份材料中感, 52份材料感病, 235份材料高度感病。本研究可为抗白粉病胡麻品种的培育及相关抗病基因的发掘提供参考。
英文摘要:
      Powdery mildew has become one of the common diseases affecting yield and quality in oil flax at present. Planting resistant cultivars is the most economic, environment-friendly and effective way to prevent and control the disease, while the critical restriction factor in breeding resistant varieties is lack of resistant hybrid parents. With the object to screen oil flax materials with resistance to powdery mildew, the method of disease index was applied to determine and evaluate 300 oil flax germplasm resources in field natural infection. The result showed all of the tested materials were infected variously in extent by powdery mildew. There were no single material immune to the disease, only 5 materials showed moderate resistance. The rest of 295 materials were susceptible to the disease, there were 8 materials showed moderate susceptible, 52 susceptible and 235 highly susceptible. The result can provide references for breeding of oil flax varieties with resistance to powdery mildew and exploring the relevant resistant genes.
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