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1)  Restin gene
休眠基因
2)  causes of seed dormancy
休眠原因
1.
Based on the tests of the embryo viability,germination rates of whole seeds and the isolated embryos,the causes of seed dormancy of 6 species in genus of Pinus were studied by testing the biological function of the abstracts from the testa,endothelium and endosperm,and by the contents of endogenous hormones of the seed coats and endosperms of these different species.
以种子生活力、种子萌发率和离体胚萌发率为测定指标,通过外种皮、内种皮和胚乳内含物的生物测定,及种皮和胚乳内源激素的测定,对松属6个树种种子休眠原因进行研究。
3)  causal factors for dormancy
休眠成因
4)  dormancy characteristics
休眠原因
1.
In this study the dormancy characteristics of Cyclocarya paliurus seeds are studied through experiments such as morphological dissecting of the seeds, the seeds coats microstructure under the scanning electron microscope, the water absorption of seeds coats and the biotic measurement of the methanol extract of Cyclocarya paliurus seeds coats.
青钱柳种子属于综合性深休眠类型,在自然条件下,需要经过隔年甚至2年才能萌发,本文通过青钱柳种子的形态解剖、种皮的扫描电镜结构、种皮的透水性及种皮醇提液的生物测定等试验,探讨了青钱柳种子的休眠原因。
5)  diapause hormone
休眠因素
6)  Categories of seed dormancy
休眠原因与休眠类型
补充资料:休眠素(dormin)
分子式:
CAS号:

性质:又称休眠素(dormin)。从幼期棉桃中分离得到的一种具有倍半萜结构的植物激素。天然产的为(+)-2-顺,4-反-脱落酸,存在于悬铃木、白桦、玫瑰叶中,以及圆白菜、马铃薯、柠檬、鳄梨中。无色结晶,分子量264.31。熔点160~161℃,120℃升华。溶于碳酸氢钠水溶液、氯仿、丙酮、乙酸乙酯和乙醚,微溶于苯和水。人工合成的为外消旋体,熔点188~190℃。是一种重要的植物生长激素,其浓度达0.01μg时,有加速棉花落叶的活性。  

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