| 海南西瓜三叶枯病的病原鉴定及室内药剂筛选试验 |
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| 引用本文： | 张荣意 谭志琼. 海南西瓜三叶枯病的病原鉴定及室内药剂筛选试验[J]. 热带作物学报, 1997, 18(1): 96-99 |
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| 作者姓名： | 张荣意 谭志琼 |
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| 作者单位： | 华南热带农业大学农学院植保系 |
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| 摘 要： | 西瓜三叶枯病是海南省西瓜栽培过程中出现的一种严重的病害。通过对该病菌原培养特性，形态特征和寄主范围的测定，鉴定出西瓜三叶枯病的病原为极孢属。采用含毒介质法，进行了８种药剂对该菌的毒力测定。结果表明：扑海因和代森锰锌抑菌效果最好。
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| 关 键 词： | 西瓜 三叶枯病 病原 鉴定 |
Selection of Salt Tolerant Cell Lines of Sugarcane and Their Characteristics |
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| Lin Junfang, Che. Rukai, Lin Miaolong, Lin Junyang. Selection of Salt Tolerant Cell Lines of Sugarcane and Their Characteristics[J]. Chinese Journal of Tropical Crops, 1997, 18(1): 96-99 |
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| Authors: | Lin Junfang Che. Rukai Lin Miaolong Lin Junyang |
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| Abstract: | The embryogenic calli from sugarcane (deccharum officinarum ) Fuyin 83 - 13, Guitang N0. 11 and Funong 86/17 were selected for salt tolerance on the selective media at NaCl concentrations of 0, 0.5%, 1 .0%, 1 .5%, 2.0%, 2.5%, 3.0% and 3-5%. The results disclose that the sensibilities of calli to NaCl are different in sugarcane genotroes in the order of Funong 86/17 >Guitang No. 11 > Fuyin 83 - 13. The suitable concentrations of NaCl for se-lecting sugarcane cell lines were 2 .0 % and 2. 5 %. R9301, a salt resistant sugarcane variant line, is selecaed from Fuyin 83 - 13 callus in the presence of 2 .0 % NaCl and found highly toler-ant to salt. This line accumulates more free proline in irs cells and has stable cell membrane struc-ture as compared with wild lines. |
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| Keywords: | Sugarcane Salt resistance Variant line |
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