| 美国东部黑核桃不同家系幼树年生长节律研究 |
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| 引用本文： | 宋锋惠,史彦江,卡得尔.美国东部黑核桃不同家系幼树年生长节律研究[J].经济林研究,2006,24(1):56-59. |
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| 作者姓名： | 宋锋惠 史彦江 卡得尔 |
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| 作者单位： | 新疆林业科学研究院,新疆,乌鲁木齐,830002 |
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| 摘 要： | 通过对引进的3个家系美国东部黑核桃4-5年生幼树的年生长节律及物候分析比较,结果表明:(1)黑核桃春季萌动、抽梢生长较晚,生长期仅为80 d左右,高、径生长集中在5-7月;(2)为使新梢充分木质化,预防2次生长带来的早、晚霜危害,树木停止高生长后,及时有效控水;(3)同一种源不同家系间,高、径生长存在差异,引进种子苗木时,应考虑引进经过区域试验种源的优良家系。
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| 关 键 词： | 美国东部黑核桃 家系 幼树 生长节律 |
| 文章编号： | 1003-8981（2006）01-0056-04 |
| 收稿时间： | 2005-09-28 |
| 修稿时间： | 2005年9月28日 |
Study on Annual Growth Rhythm of the Saplings from Different Families of Eastern American Black Walnut |
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| SONG Feng-Hui,SHI Yan-Jiang,KA De-Er.Study on Annual Growth Rhythm of the Saplings from Different Families of Eastern American Black Walnut[J].Economic Forest Researches,2006,24(1):56-59. |
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| Authors: | SONG Feng-Hui SHI Yan-Jiang KA De-Er |
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| Institution: | Forestry Academy of Xinjiang, Urumchi 830002, Xinjiang, China |
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| Abstract: | Annual growth rhythm and phenology of the saplings of 4-5 years old from 3 families of eastern American black walnut introduced were analyzed and compared with each other. The results showed that black walnut germinated and sprouted more lately in spring, the growth period only last about 80 days, and the height and diameter were increased mainly from May to July. In order to promote full lignification of new shoots and prevent the damage of early and night frosts to new shoots during the second growth, irrigation should be controlled effectively in time after the growth of height stop. Growth of height and diameter were different between different families from the same provenance, so excellent families which had gone through regional test should be considered as seedlings introduced. |
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| Keywords: | eastern American black walnut family sapling growth rhythm |
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