| 巴西橡胶树抗白粉病室内鉴定模型的建立 |
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| 引用本文： | 涂敏,蔡海滨,华玉伟,皮彩霞,黄华孙.巴西橡胶树抗白粉病室内鉴定模型的建立[J].湖北农业科学,2011(20):4185-4187,4193. |
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| 作者姓名： | 涂敏 蔡海滨 华玉伟 皮彩霞 黄华孙 |
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| 作者单位： | 中国热带农业科学院橡胶研究所;海南大学农学院; |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项(1630022011003) |
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| 摘 要： | 选取20份巴西橡胶树品系,将白粉病菌纯化后进行大田鉴定和3种温度下的室内鉴定,以评价各品系对白粉病的抗性并建立橡胶树抗白粉病室内鉴定模型。结果表明,20个橡胶树品系人工接种大田鉴定结果为高抗品系6个,抗病品系5个,感病品系3个,高感品系6个。在设置的22、25、28℃3个培养温度条件下,白粉病菌菌丝长度存在极显著差异,培养温度越高,病菌菌丝生长速度越快,菌丝长度越长。同时发现3种温度下白粉病菌菌丝长度比值不存在差异性,具有极其良好的稳定性。建立病情指数(y)与菌丝长度比值(x)的回归方程为:y=-62.072+80.909 54x,该方程可用于预测巴西橡胶树品系对白粉病的抗性等级。同时对橡胶树白粉病室内抗性评价的分级进行了修改,结合回归方程建立了巴西橡胶树抗白粉病室内鉴定模型,旨在为完善高效的巴西橡胶树抗白粉病鉴定评价体系提供基础和技术支持。
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| 关 键 词： | 巴西橡胶树 白粉病 室内鉴定 菌丝长度比值 |
Establishment of Indoor Identification Model of Rubber Tree(Heveae brasiliensis) against Powdery Mildew(Oidium heveae) |
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| TU Min,CAI Hai-bin,HUA Yu-wei,PI Cai-xia,HUANG Hua-sun.Establishment of Indoor Identification Model of Rubber Tree(Heveae brasiliensis) against Powdery Mildew(Oidium heveae)[J].Hubei Agricultural Sciences,2011(20):4185-4187,4193. |
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| Authors: | TU Min CAI Hai-bin HUA Yu-wei PI Cai-xia HUANG Hua-sun |
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| Institution: | TU Min1,CAI Hai-bin1,HUA Yu-wei1,PI Cai-xia2,HUANG Hua-sun1(1.Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences,Danzhou 571737,Hainan,China,2.Agricultural College,Hainan University,China) |
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| Abstract: | Total of 20 rubber tree(Heveae brasiliensis) clones were chosen,and inoculated by purified powdery mildew(Oidium heveae).Then field identification and indoor identification in three kinds of temperature conditions were studied to evaluate the clone's resistance level and establish the indoor identification model.The result showed that the resistance-susceptibility difference of rubber tree clones was distinct: high resistance(6 clones),resistance(5 clones),susceptibility(3 clones),and high susceptibility(6 ... |
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| Keywords: | Heveae brasiliensis Oidium heveae indoor identification hypha length ratio |
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