| 尾叶桉作母本的种间控制授粉家系苗期抗青枯病研究 |
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| 引用本文： | 甘四明,白嘉雨,吴坤明,吴菊英,徐建民.尾叶桉作母本的种间控制授粉家系苗期抗青枯病研究[J].林业科学研究,1998,11(6):569-573. |
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| 作者姓名： | 甘四明 白嘉雨 吴坤明 吴菊英 徐建民 |
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| 作者单位： | 中国林业科学研究院热带林业研究所 |
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| 摘 要： | 对８１个以尾叶桉为母本的种间控制授粉家和３个母本的自由授粉家系进行苗期青本病菌接种试验表明，接种后母本家系抗病性都较差，种间控制授粉家系间发病指数和死亡率有差异，初步筛选出１个特抗家系和４９个抗性家系。以家系抗病性评价父本树种，细叶桉，赤桉，窿缘桉，雷林一号桉和粗皮桉选育潜力较好，巨桉，巨尾桉和柳桉则较差。对抗生，易感和高感抗病水平各３个种间控制授粉家系进行接种前和接种后过氧化氢酶活性测定表明，家
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| 关 键 词： | 桉树杂种 苗期接种 青枯病 尾叶桉 |
| 收稿时间： | 1997/11/5 0:00:00 |
Seedling Resistance of Interspecific Crosses from Female Eucalyptus urophylla to Bacterial Wilt |
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| Gan Siming,Bai Jiayu,Wu Kunming,Wu Juying and Xu Jianmin.Seedling Resistance of Interspecific Crosses from Female Eucalyptus urophylla to Bacterial Wilt[J].Forest Research,1998,11(6):569-573. |
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| Authors: | Gan Siming Bai Jiayu Wu Kunming Wu Juying and Xu Jianmin |
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| Institution: | Gan Siming Bai Jiayu Wu Kunming Wu Juying Xu Jianmin |
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| Abstract: | In this paper 81 interspecific controlled pollinated families and 3 open pollinated families from female Eucalyptus urophylla were inoculated with Pseudomonas solanacearum at seedling stage. Results show that the families differ in disease index and mortality, and the three open pollinated families perform all poor in resistance. Some interspecific resistant families were selected out. In terms of the resistance of interspecific combination, E. tereticornis,E. camaldulensis, E. exserta,E. Leizhou No. 1 and E. pellita are potentially good fathers, but E. grandis, E. grandis urophylla and E. saligna are poor. Catalase activity before and after inoculation was determined which indicated that the increase of catalase activity was of strongly positive relation with the resistance of the families. Increase of catalase activity after inoculation could be an useful assistant index for early selection of eucalypt materials resistant to Pseudomonas solanacearum. |
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| Keywords: | Eucalyptus hybrids seedling inoculation Pseudomonas solanacearum catalase |
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