Low-temperature stratification strategies and growth regulators for rapid induction of Paris polyphylla var. yunnanensis seed germination

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	Low-temperature stratification strategies and growth regulators for rapid induction of Paris polyphylla var. yunnanensis seed germination
	Zhou, LG ; Wu, JY ; Wang, SL
	2003-10-01
发表期刊	PLANT GROWTH REGULATION
ISSN	0167-6903
卷号	41 期号:2 页码:179-183
摘要	The seeds of Paris polyphylla var. yunnanensis are deeply dormant, and they remain dormant for 18 months or longer in their natural environment. Periodic exposure of the seeds to a low-temperature of 4 degreesC broke the dormancy in about 16 weeks (112 days). The most effective temperature stratification scheme was an interval of 14 days at 4 degreesC and 14 days at 22 degreesC. Both GA(3) and ethephon significantly enhanced the germination rate during the stratification treatment. The seed coat, particularly the mesophyll outer layer of the seed coat, strongly inhibited the germination. With removal of the seed coat and exposure of the uncoated seeds to 600 mg/l GA(3) for 48 h before the temperature stratification of 14 days at 4 degreesC and 14 days at 22 degreesC for 112 days, a germination percentage as high as 95.3% of the seeds was attained in about 160 days.
关键词	Dormancy Growth Regulators Paris Polyphylla Var. Yunnanensis Seed Germination Stratification
学科领域	Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000186380300012
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/13555
专题	离退休
作者单位	1.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China 2.China Agr Univ, Coll Agron & Biotechnol, Beijing 100094, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Zhou, LG,Wu, JY,Wang, SL. Low-temperature stratification strategies and growth regulators for rapid induction of Paris polyphylla var. yunnanensis seed germination[J]. PLANT GROWTH REGULATION,2003,41(2):179-183.
APA	Zhou, LG,Wu, JY,&Wang, SL.(2003).Low-temperature stratification strategies and growth regulators for rapid induction of Paris polyphylla var. yunnanensis seed germination.PLANT GROWTH REGULATION,41(2),179-183.
MLA	Zhou, LG,et al."Low-temperature stratification strategies and growth regulators for rapid induction of Paris polyphylla var. yunnanensis seed germination".PLANT GROWTH REGULATION 41.2(2003):179-183.

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