| 水稻恶苗病抗病性筛选方法的初步研究 |
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| 引用本文： | 郑镐燮,吕彬,吴润植,聂宏.水稻恶苗病抗病性筛选方法的初步研究[J].植物保护学报,1993,20(4):289-293. |
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| 作者姓名： | 郑镐燮 吕彬 吴润植 聂宏 |
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| 作者单位： | 黑龙江省农业科学院水稻研究所 佳木斯 |
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| 摘 要： | １９９１－１９９２年对水稻恶苗病进行不同鉴定方法，单一菌株与混合菌株接种，抗生分级标准，品种抗病性鉴定及Ｆ２代抗，感分离比率的研究。结果表明，水稻芽期浸菌接种法能明显区分不同品种（系）的抗感水平，且简便易行，适用于大量品种的筛选；采用不同地区混合菌株接种可扩大致病谱，其平均致病率也接近单一菌株的平均值，划分出抗生分级标准０－９级；据对２０４份品种（系）的鉴定，水稻品种（系）间抗性有明显差异，苗期抗
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| 关 键 词： | 恶苗病 抗病性 水稻 选择育种 |
STUDY ON SCREENING METHODS FOR RESISTANCE TO BAKANAE DISEASE OF RICE |
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| Zheng Gaoxie,L&#; Bin,Wu Runzhi and Nie Hong.STUDY ON SCREENING METHODS FOR RESISTANCE TO BAKANAE DISEASE OF RICE[J].Acta Phytophylacica Sinica,1993,20(4):289-293. |
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| Authors: | Zheng Gaoxie L&#; Bin Wu Runzhi and Nie Hong |
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| Institution: | Rice Research Institute, Heilongjiang Agricultural Academy, Jiamusi,Rice Research Institute, Heilongjiang Agricultural Academy, Jiamusi,Rice Research Institute, Heilongjiang Agricultural Academy, Jiamusi and Rice Research Institute, Heilongjiang Agricultural Academy, Jiamusi |
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| Abstract: | In 1991-1992,the methodology for evaluation and screening of rice va-rieties and germplasm for resistance to bakanae disease was studied.Thebud soaking inoculation was proved a simple and easy method forscreening a large number of varieties;use of mixed races from differentareas had an advantage in expanding disease spectrum.The average ofits pathogenecity rate was close to all single race.A resistance gradingstandard of 0-9 classes was evaluated.In 204 varieties examined therewas significant difference in disease resistance which was not consistant between seedling and adult plants and seven resistant moderately re-sistant varieties had been screened out.The ratio of R-and S-proge-nies F_2 generation of cross combinations were obviously different andrelating to their parents. |
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| Keywords: | Gibberella fujikuroi disease resistance screening way grading standard |
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