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	Effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of cotinus coggygria var. cinerea (anacardiaceae) seeds
	Deng, Z. J.2,3; Cheng, H. Y.1; Song, S. Q.1
刊名	Seed science and technology
	2010
卷号	38期号:3页码:572-584
ISSN号	0251-0952
通讯作者	Song, s. q.(sqsong@ibcas.ac.cn)
英文摘要	Identifying the type of seed dormancy of a species is an essential prerequisite for subsequent studies on its seeds. previous studies suggested that there is combinational (physiological and physical) dormancy in cotinus coggygria var. cinerea seeds, but the level and the type of physiological and physical dormancy are not still known. in the present study we investigated the effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of c. coggygria var. cinerea seeds. the present study showed that excised embryos produce normal seedlings. both dry storage and ga(3) were helpful in both dormancy-breaking and germination of scarified seeds. neither 6-ba nor ethephon promoted germination of fresh scarified seeds. with increasing stratification time at 5 degrees c, seeds germinated over a wider temperature range. light inhibited germination of scarified seeds, but cold moist stratification and ethephon treatment could partially offset the inhibitory effects of light on breaking physiological dormancy of scarified seeds. these results indicate that c. coggygria var. cinerea seeds possess type 3, non-deep physiological dormancy. we hypothesize that physical dormancy can also include a few levels which result from different developmental state of the seed coat or endocarp.
WOS关键词	SCOP. SEEDS ; CONVOLVULACEAE ; PRETREATMENTS ; SENSITIVITY ; ECOLOGY
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Horticulture
语种	英语
出版者	ISTA-INT SEED TESTING ASSOC
WOS记录号	WOS:000287107500005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2408757
专题	中国科学院大学
通讯作者	Song, S. Q.
作者单位	1.Chinese Acad Sci, Grp Seed Physiol & Biotechnol, Inst Bot, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Sect Seed Biol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Deng, Z. J.,Cheng, H. Y.,Song, S. Q.. Effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of cotinus coggygria var. cinerea (anacardiaceae) seeds[J]. Seed science and technology,2010,38(3):572-584.
APA	Deng, Z. J.,Cheng, H. Y.,&Song, S. Q..(2010).Effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of cotinus coggygria var. cinerea (anacardiaceae) seeds.Seed science and technology,38(3),572-584.
MLA	Deng, Z. J.,et al."Effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of cotinus coggygria var. cinerea (anacardiaceae) seeds".Seed science and technology 38.3(2010):572-584.

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