林业科学 ›› 1998, Vol. 34 ›› Issue (2): 111-114.
• 研究简报 • 上一篇 下一篇
沈永宝1,喻方圆1,高捍东1,金天喜2,曾宪志2
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Yongbao Shen1,Fangyuan Yu1,Handong Gao1,Tianxi Jin2,Xianzhi Zeng2
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关键词: 云南松种子, 生活力, x射线水衬比
Abstract:
This paper studies a method to test the seed viability of Yunnan pine (Pinus Yunnanensis Franch) by the radiography with water as contrast agent.The results showed that the method can be used for rapidly testing seed viability in accordance with its germination percentage.The suitable procedure is as follows :The seeds were dried in a drier(30 ℃) with silica gel(SiO2) for 5.5 hours after the seeds were soaked in water(25 ℃) for 24 hours and put on a germination medium for 24 hours.The internal structure of viable seeds can't been seen on its picture or slightly seen.Based on these dead seeds and viable seeds can be determined easily.
Key words: Yunnan pine seed, Seed viability, X-ray method with water as contrast agent
沈永宝,喻方圆,高捍东,金天喜,曾宪志. X射线水衬比法测定云南松种子生活力*[J]. 林业科学, 1998, 34(2): 111-114.
Yongbao Shen,Fangyuan Yu,Handong Gao,Tianxi Jin,Xianzhi Zeng. STUDIES ON X-RAY CONTRAST METHOD WITH WATER FOR TESTING VIABILITY OF YUNNAN PINE SEED[J]. Scientia Silvae Sinicae, 1998, 34(2): 111-114.
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图1
干燥过程无生活力种子、有生活力种子水分变化 -□-□-死亡种子 … 。…有生活力种子-□-□-Dead seed … 。…Viable seed "
图2
云南松种子水衬比处理后有、无生活力种子图象特征 0----有生活力种子; 2----无生活力种子 0---Vigour seed; 2---Vigourlees seed "
表1
云南松种子生活力x射线水衬比法测定结果与发芽率的比较"
