| 影响林木种子贮藏的因素 |
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| 引用本文： | Ben S P Wang J Dale Simpson. 影响林木种子贮藏的因素[J]. 南京林业大学学报(自然科学版), 2006, 30(1): 1-7 |
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| 作者姓名： | Ben S P Wang J Dale Simpson |
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| 作者单位： | Natural Resources Canada Canadian Forest Service Petawawa Research Forest P.O.Box 2000，Chalk River，ON，Canada K0J 1J0，Natural Resources Canada，Canadian Forest ServiceAtlantic Forestry Centre P.O.Box 4000，Fredericton，NB，Canada E3B 5P7 |
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| 摘 要： | 为了每年提供造林新需的具有生活力的种子及长期保存种质资源,贮藏种子是必要的手段。种子寿命具有遗传性,且因树种而异。种子的贮藏特性可以分成5类:正常型、亚正常型、温带顽拗型、热带顽拗型和中间型。种子含水量和贮藏温度是影响种子贮藏是否成功的两个最重要因素。但因树种及其贮藏特性不同,种子含水量和贮藏温度的最适值也不同。为了保持正常型和亚正常型种子的生活力,这类种子必须密封贮藏;但对顽拗型种子,因其需要保持种子的代谢活性及要进行有氧呼吸,则需要气体交换。
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| 关 键 词： | 种子寿命 贮藏方式 贮藏条件 正常型种子 顽拗型种子 |
| 文章编号： | 1000-2006(2006)01-0001-07 |
| 收稿时间： | 2004-11-05 |
| 修稿时间： | 2005-03-19 |
Factors Affecting Tree Seed Storage |
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| Ben S P Wang,J Dale Simpson. Factors Affecting Tree Seed Storage[J]. Journal of Nanjing Forestry University(Natural Sciences ), 2006, 30(1): 1-7 |
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| Authors: | Ben S P Wang J Dale Simpson |
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| Affiliation: | 1. Natural Resources Canada,Canadian Forest Service Petawawa Research Forest P. O. Box 2000,Chalk River,ON,Canada K0J 1J0
2. Natural Resources Canada,Canadian Forest Service Atlantic Forestry Centre P. O. Box 4000,Fredericton,NB,Canada E3B 5P7 |
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| Abstract: | Seed storageis necessaryto provide an annual supply of viable seedfor reforestationand for preservation of germplasmfor gene conservation.Seed longevity is inherited and va-ries among species.Five storage behaviors are recognized:orthodox,suborthodox,temperaterecalcitrant,tropical recalcitrant,andintermediate.Seed moisture content and storage temper-ature are the two most i mportant factors contributing to storage success but the opti mal val-ues for these factors vary with tree species and their storage behavior.Hermetically sealedcontainers are necessary for maintaining viability of orthodox and suborthodox seeds butsome air exchangeis requiredfor recalcitrant seeds which remain metabolically active and re-quire oxygen for respiration. |
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| Keywords: | Longevity Storage behavior Storage condition Orthodox Recalcitrant |
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