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| 平欧杂交榛抗抽条能力及抽条临界含水量研究 | |
| 引用本文： | 李春牛,董凤祥,王贵禧,张日清,梁丽松.平欧杂交榛抗抽条能力及抽条临界含水量研究[J].林业科学研究,2010,23(3):330-335. |
| 作者姓名： | 李春牛 董凤祥 王贵禧 张日清 梁丽松 |
| 作者单位： | 1. 中南林业科技大学林学院,湖南,长沙,410004;中国林业科学研究院林业研究所,北京,100091 2. 中国林业科学研究院林业研究所,北京,100091 3. 中南林业科技大学林学院,湖南,长沙,410004 |
| 基金项目： | "十一五"国家科技支撑计划重大课题"高产优质干鲜果品新品种选育"(2006BAD01A17);中央级公益性科研院所基本科研业务费专项资金项目中国林业科学研究院林业研究所重点项目"平欧杂交榛优质丰产培育相关配套技术研究"(ZD200909) |
| 摘 要： | 以平欧杂交榛的18个优良品种(系)为试材,研究各品种(系)在北京地区的抗抽条能力以及抽条与枝条含水量的关系。对田间自然鉴定法所得结果进行聚类分析,将18个品种(系)分为4类:抗抽条能力最强的一类为84-254、B-3、B-21、83-33、84-72和81-9;抗抽条能力较强的一类为84-48、81-23、85-127、84-237和84-1;抗抽条能力较弱的一类为82-11、84-545和84-226;抗抽条能力最弱的为84-572、84-402、84-69和84-349。室内模拟枝条失水程度与萌芽率关系的试验表明:不同品种(系)的抽条临界含水量不同,但多数品种(系)抽条的临界含水量在35%~30%间。田间材料的调查测定表明:北京地区平欧杂交榛枝条的失水集中在2月上旬到下旬,枝条含水量在2月下旬降到最低。试验结果表明:抽条与枝条含水量紧密相关,但抗抽条能力的强弱不完全取决于临界含水量的高低。 |
| 关 键 词： | 平欧杂交榛 抗抽条能力 临界含水量 |
Study on the Tolerance and Critical Water Capacity of Shoot Shriveling in Hybrid Hazelnuts |
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| LI Chun-niu,DONG Feng-xiang,WANG Gui-xi,ZHANG Ri-qing and LIANG Li-song.Study on the Tolerance and Critical Water Capacity of Shoot Shriveling in Hybrid Hazelnuts[J].Forest Research,2010,23(3):330-335. | |
| Authors: | LI Chun-niu DONG Feng-xiang WANG Gui-xi ZHANG Ri-qing and LIANG Li-song |
| Institution: | LI Chun-niu1,2,DONG Feng-xiang2,WANG Gui-xi2,ZHANG Ri-qing1,LIANG Li-song2(1.College of Forestry,Central South University of Forestry and Technology,Changsha 410004,Hu'nan,China,2.Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China) |
| Abstract: | In order to find out the tolerance of shoot shriveling in different varieties of hybrid hazelnuts (Corylus heterophylla×C. avellana) in Beijing, the authors investigated the shoot shriveling performance of 18 hybrid hazelnuts without frost protection in winter and classified them into 4 groups , according to the results of cluster analysis. The result showed that the group with strongest tolerance of shoot shriveling included 84-254, B-3, B-21,83-33, 84-72 and 81-9, followed by the group including 84-48, 81-23, 5-127, 84-237 and 84-1; 82-11, 84-545 and 84-226 fell into the third group with weaker tolerance, and the group with the weakest tolerance of shoot shriveling comprised 84-572, 84-402, 84-69 and 84-349. In Beijing, the period of water losing in hazelnut shoot is from the first ten days of February to the last ten days of February, and the shoot water content decreases to the lowest point by the last ten days of February. The study on the relation between shoot water content and shoot shriveling showed that the critical water capacity in different hybrid hazelnuts varied, but that of most varieties was between 35% and 30%. Shoot shriveling resulted from water losing, so there was a close relationship between them, but the critical water capacity of shoot shriveling was not the only factor causing the shriveling of the shoot. |
| Keywords: | hybrid hazelnut tolerance of shoot shriveling critical water capacity |
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