评估收获后的临时种子储存条件:以四种北方植物为例

IF 1.7 4区 农林科学 Q2 AGRONOMY Seed Science and Technology Pub Date : 2022-01-01 DOI:10.15258/sst.2022.50.2.02
Mark Baah-Acheamfour, J. Sobze
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引用次数: 0

摘要

种子的贮藏寿命受初始品质和贮藏条件的影响。将四种北方植物的种子在4°C下保存不同的时间(0、1、2、3和4周),以确定收获后和加工前适当的临时储存条件。4℃处理4周后,加拿大一枝黄花(75%)、加拿大牧羊草(79%)和白杨(100%)种子的萌发率最高。但在4℃条件下保存3、4周后,金银花萌发率较对照降低22.5%;在4℃条件下保存1 ~ 2周,降低幅度较小(1.5%)。不同贮藏处理和对照对白杨和香茅的平均发芽时间(MGT)和发芽同步(SYN)无显著影响。然而,在加拿大牧羊草中,3周处理的种子的MGT更长,而在加拿大一枝黄花中,相对于对照,4°C处理的3或4周提高了SYN。结果表明,在收获后和加工前储存某些北方植物种子而不降低其发芽特性的机会是存在的。
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Assessing post-harvest interim seed storage conditions: a case study of four boreal plant species
The longevity of seeds in storage is modulated by the initial quality as well as the storage conditions. Seeds of four boreal species were stored for a varying amount of time (0, 1, 2, 3 and 4 weeks) at 4°C to determine the appropriate interim storage conditions after harvest and before processing. The highest germination of Solidago canadensis (75%), Shepherdia canadensis (79%) and Populus balsamifera (100%) seeds was observed for the four weeks at 4°C treatment. However, P. tremuloides germination was reduced by 22.5% when seeds were kept at 4°C for 3 or 4 weeks relative to the control; the reduction was less (1.5%) when seeds were kept at 4°C for 1 or 2 weeks. No significant difference in mean germination time (MGT) or germination synchrony (SYN) was recorded following the different storage treatments and the control for Populus tremuloides or P. balsamifera. However, in Shepherdia canadensis, the MGT of the seeds in the 3-week treatment was longer, while in Solidago canadensis, the 3 or 4 weeks at 4°C treatment improved the SYN relative to the control. The result suggests opportunities exist to store certain boreal seeds after harvest and before processing without reducing their germination characteristics.
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来源期刊
Seed Science and Technology
Seed Science and Technology 农林科学-农艺学
CiteScore
3.00
自引率
28.60%
发文量
36
审稿时长
>36 weeks
期刊介绍: Seed Science and Technology (SST) is an international journal featuring original papers and articles on seed quality and physiology related to seed production, harvest, processing, sampling, storage, genetic conservation, habitat regeneration, distribution and testing. A journal that meets the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality. Published every April, August and December.
期刊最新文献
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