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　ZHOU Jing,XIN Xia,YIN Guang-kun,et al.Optimal Moisture Content and Longevity of Soybean Seeds Stored at Different Climatic Zones under Ambient Condition[J].Soybean Science,2014,33(05):685-690.[doi:10.11861/j.issn.1000-9841.2014.05.0685]
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大豆种子在不同气候区室温贮藏的适宜含水量与寿命关系研究

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第33卷 期数: 2014年05期 页码: 685-690 栏目: 出版日期: 2014-10-25
Title:
Optimal Moisture Content and Longevity of Soybean Seeds Stored at Different Climatic Zones under Ambient Condition
文章编号:
1000-9841.2014.05.0685
作者:
周静; 辛霞; 尹广鹍; 陈晓玲; 张金梅; 卢新雄
中国农业科学院 作物科学研究所/国家种质库，北京 100081
Author(s):
ZHOU Jing; XIN Xia; YIN Guang-kun; CHEN Xiao-ling; ZHANG Jin-mei; LU Xin-xiong
National Genebank of China/Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China
关键词:
大豆; 种子; 室温贮藏; 适宜含水量; 贮藏寿命; 种质保存
Keywords:
Soybean; Seed; Ambient storage; Optimal moisture content; Seed longevity; Germplasm conservation
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.05.0685
文献标志码:
A
摘要:
为了解不同气候区室温贮藏的大豆种子适宜含水量与贮藏寿命的关系，将含水量为2.0%~8.2%大豆种子置于西宁、哈尔滨、乌鲁木齐、北京、三亚和南昌6个不同气候类型地区贮藏15年，每年定期检测种子生活力，并计算种子贮藏寿命。结果表明：大豆种子含水量在干燥至3.5%的过程中，种子活力没有明显变化，而当种子含水量低于3.0%(含3.0％）时，种子的发芽率和活力指数明显降低。大豆种子室温贮藏的适宜含水量范围为5.0%~6.0%，其具有地域广适性。适宜含水量范围与贮藏地点的年均气温和0℃以上积温显著相关，年均气温和0℃以上年积温越高，适宜含水量范围越窄；反之，则越宽。种子在西宁和哈尔滨两地的安全保存年限分别为11和9年，寿命(半活期）则达12年以上。因此，通过将种子干燥至适宜含水量并铝箔袋密封包装，大豆种子可以在室温条件下达到中期保存(10年以上）的效果。
Abstract:
To investigate the relationship between the optimal moisture content and longevity of soybean seeds,seeds with different moisture content were stored for 15 years at 6 climatic zones,including Xining,Harbin,Beijing,Urumqi,Sanya and Nanchang.Seed viability and vigor were monitored yearly,and then seed longevity was calculated.The results showed that seed drying to 3.5% moisture content did not bring significant effect on seed viability and vigor.However,further drying,i.e.moisture content equal to or lower than 3.0% did reduce seed viability and vigor.The optimal moisture contents for seed storage under ambient storage were 5.0%-6.0%,which was widely adaptable to the six climatic zones.The optimal moisture content was significantly correlated with the mean annual temperature and accumulated temperature(≥0℃).The higher the mean annual temperature and accumulated temperature(≥0℃),the narrower the optimal moisture content range,vice versa.The safe storage life(time taken for seed viability drop to 85% of the initial viability)of seed with optimal moisture content being stored at Xining and Harbin were 11 and 9 years,respectively,and the lifespan(P50,time taken for seed viability drop to 50% of the initial viability)was even longer than 12 years.Therefore,the longevity of soybean seeds under ambient storage could be significantly prolonged,even longer than mid-term storage,by drying the seeds to the optimal moisture contents and packaging the seeds with aluminum foil bags.

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备注/Memo

基金项目：国家“十二五”科技支撑计划（2013BAD01B01）；中国农业科学院科技创新工程作物种质资源保护与共享创新团队项目（2060302-2）。

第一作者简介：周静（1988-），女，硕士，主要从事作物种质资源保存研究。E-mail:zhoujingxyz@163.com。
通讯作者：卢新雄（1961-），男，研究员，主要从事作物种质资源保存研究。E-mail:luxinxiong@caas.cn。

更新日期/Last Update: 2014-12-25