| 姜春宁，李云，林伟，郝磊，黄永芳.乐昌含笑种子发芽试验初探[J].广东农业科学,2014,41(4):55-59 |
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乐昌含笑种子发芽试验初探 |
| Germination test of Michelia chapensis Dandy seeds |
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| DOI： |
| 中文关键词: 乐昌含笑 发芽试验 萌发生理 |
| 英文关键词: Key words: Michelia chapensis Dandy曰germination test曰germination physiology |
| 基金项目:广东省林业科技创新专项资金项目（2010KJCX
001-09，2012KJCX001-07） |
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| 摘要点击次数: 1775 |
| 全文下载次数: 678 |
| 中文摘要: |
| 对乐昌含笑的种子分别进行层积处理、6-BA 浸种处理、浓硫酸浸种处理和机械处理等发芽试验，同时
探究种子萌发过程中营养物质的动态变化，对其萌发生理进行初步研究。结果表明院不同层积处理中低温沙藏后的
含笑种子发芽率最高，达86%；6-BA 浸种处理中100 皂g/L 6-BA 浸泡后的种子发芽率最高，达81%；浓硫酸浸种处
理中随硫酸浸种时间延长，发芽率呈下降趋势，其中浸种5 min 发芽率最高，达77%；砂纸摩擦后的种子发芽率为
78%，明显高于未经摩擦处理的种子。另外，乐昌含笑种子萌发过程中种子蛋白质、淀粉和脂肪含量随萌发时间延长
呈下降趋势，可溶性糖含量先减少、后增加、再减少；在种子整个萌发阶段，恒温（25益）沙藏的种子各类营养物质含量
变化最大。 |
| 英文摘要: |
| The germination test of Michelia chapensis Dandy seeds was conducted with different methods, including
different stratification, 6-BA and concentrated sulfuric acid soaking seed, mechanical treatment and so on. At the same
time, the dynamic changes of seeds nutrient in process of germination with different stratification were analyzed. The results
showed that the germination rates were both good with sand stratification in low temperature and soaking by 100 mg/L 6-
BA, which were 86% and 81% respectively. Over time, the germination rate decreased, when seed soaked in concentrated
sulfuric acid for 5 minutes, the germination rate reached 77%, which was the highest. Meanwhile, the germination rate
reached 78% with sand paper friction, were higher than controlled experiments apparently. Besides, the nutrient contents
including protein, starch and fat decreased with the time extension, the contents of soluble sugar decreased at first and then
increased, and decreased at last. In the whole germination progress, the biggest changes of seed nutrient contents appeared
when stratified seeds were in constant temperature (25益). |
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