| 病区优树对杨树溃疡病抗性的研究* |
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| 引用本文： | 杨自湘,韩一凡,陈鸿雕,刘志成,潘成良,张学礼.病区优树对杨树溃疡病抗性的研究*[J].林业科学研究,1991,4(4):418-422. |
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| 作者姓名： | 杨自湘 韩一凡 陈鸿雕 刘志成 潘成良 张学礼 |
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| 作者单位： | 中国林业科学研究院林业研究所
(杨自湘，韩一凡)，辽宁省杨树研究所
(陈鸿雕，刘志成，潘成良)，安徽省固镇县苗圃(张学礼) |
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| 基金项目： | “七五”攻关项目“平原阔叶树良种选育” |
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| 摘 要： |
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| 关 键 词： | 杨树 溃疡病 抗病性 优树选择 |
| 收稿时间： | 1990/9/10 0:00:00 |
A Study on Measuring the Resistance of the Plus Tree to the Canker of Poplar |
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| Yang Zixiang,Han Yifan,Chen Hongdiao,Liu Zhicheng,Pan Chengliang and Zhang Xueli.A Study on Measuring the Resistance of the Plus Tree to the Canker of Poplar[J].Forest Research,1991,4(4):418-422. |
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| Authors: | Yang Zixiang Han Yifan Chen Hongdiao Liu Zhicheng Pan Chengliang and Zhang Xueli |
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| Institution: | The Research Institute of Forestry CAF;The Research Institute of Forestry CAF;The research Institute of Poplar, Liaoning Province;The research Institute of Poplar, Liaoning Province;The research Institute of Poplar, Liaoning Province;Nursery of Guzhen County of Anhui Province |
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| Abstract: | 11 plus trees were selected in 1984 from canker disease regions of the natural hybrids of P. simonii × P. italica. In order to test the effects of plus selection and supply new resistant clones to disease regions as soon as possible, the differences of the plus trees' resistance to Dothiorella gregaria Sacc. were evacuated according to their pathogenic rate, pathogenic index and pathogenic velocity index in laboratory for three years by inoculating the disease on the artificially wounded bark. The results suggests that all of the plus tree are more resistible to the disease than P. pyramidalis × P. cathayana cv. 'Beijingensis', the most resistant clones of which are Liaoning No.5 and Liaoning No.11. |
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| Keywords: | poplar plus tree selection resistance detection |
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