Processing of seed to improve seed lot quality of rare and endangered tree species of Himalayan maple (Acer caesium Wall. Ex. Brandis) and elm (Ulmus wallichiana Planchon)
Processing of seed to improve seed lot quality of rare and endangered tree species of Himalayan maple (Acer caesium Wall. Ex. Brandis) and elm (Ulmus wallichiana Planchon)
复制标题
种子加工以提高喜马拉雅枫树 (Acer cesium Wall. Ex. Brandis) 和榆树 (Ulmus wallichiana Planchon) 等珍稀濒危树种的种子批质量
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
G. Joshi
中科院分区：
文献类型：
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作者：
S. Phartyal;R. Thapliyal;J. S. Nayal;G. Joshi
以五种不同来源的槭和榆种子样品为研究材料，从充种率、纯度、千粒重、活力、平均分离效率和升级粒充种率等方面对其种子质量和加工技术进行了评价。不同种源的种子批次质量差异显著。种子孵育1周，干燥16小时，然后在0.807g/ cm3密度的95%乙醇中漂浮分离（IDS） 2-5分钟，并用Dakota型吹种器分离种子，这些处理技术对栓皮栎种子非常有效，使填充种子和活力提高了两倍以上。用实验室抽吸器，用0.807g/ cm3浓度的95%乙醇悬浮2-5分钟，可提高种子充分率和发芽率5倍以上。
Seed lot quality and processing technique of Acer caesium and Ulmus wallichiana seed samples from five different sources were assessed by filled seed percentage, purity per cent, 1000-seed weight, per cent viability, mean separation efficiency and filled seed per cent in upgraded fraction. The seed lot quality varied significantly among seed sources. Processing techniques such as incubation of seeds for 1 week followed by drying for 16hrs then separated by floating (IDS) in 95% ethanol of 0.807g/cm 3 density for 2-5 minutes and separation of seed by Dakota Type Seed Blower were found significantly effective for A. caesium, which improved filled seed and viability per cent over two times the original seed lot. For U. wallichiana the Laboratory Aspirator and floatation of seed in 95% ethanol of 0.807g/cm 3 density for 2-5 minutes improved the proportion of filled seed and germination percentage over five times.