Dry after-ripening, light, cold stratification and temperature effects on seed germination of Primula poissonii from Yunnan, China
Peng, Deli1; Hu, Xiaojian3; Sun, Hang2; Li, Zhimin1
Corresponding AuthorLi, Zhimin(lizhimin_vip@163.com)
2019-12-01
Source PublicationSEED SCIENCE AND TECHNOLOGY
ISSN0251-0952
Volume47Issue:3Pages:301-306
AbstractPrimula poissonii, an attractive wild plant growing in the subalpine/alpine region of southwest China, has low seed germination in cultivation. This study attempted to improve seed germination by testing the effect of several treatments including dry after-ripening (DAR), light, cold stratification (CS) and temperature gradient treatments. DAR increased germination at 15/5 and 25/15 degrees C, as compared with fresh seeds. DAR seeds germinated significantly better (> 80%) at higher temperatures (20-28 degrees C) than at lower (10 degrees C, <20%; 15 degrees C, <30%) and extreme high temperatures (30 degrees C, <55%; 32 degrees C, 0%). Incubation at alternating temperature (25/15 degrees C) did not significantly improve germination; whereas at 15/5 degrees C germination increased significantly, compared with the corresponding constant temperature (20 and 10 degrees C, respectively). DAR seeds had a strict light requirement at all temperatures. As DAR and CS are sufficient to break seed dormancy, the seeds of P. poissonii appear to have non-deep PD. For non-dormant cold-stratified seeds, the estimated T-b and thermal time (theta(50)) were 2.3 degrees C and 74.1 degrees Cd, respectively.
Keywordalpine plant alternating temperature germination light requirement seed dormancy
DOI10.15258/sst.2019.47.3.05
Indexed BySCI ; SCI
Language英语
WOS Research AreaAgriculture ; Plant Sciences
WOS SubjectAgronomy ; Plant Sciences ; Horticulture
WOS IDWOS:000514174500005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/71310
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Corresponding AuthorLi, Zhimin
Affiliation1.Yunnan Normal Univ, Sch Life Sci, Kunming 650500, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Natl Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Peng, Deli,Hu, Xiaojian,Sun, Hang,et al. Dry after-ripening, light, cold stratification and temperature effects on seed germination of Primula poissonii from Yunnan, China[J]. SEED SCIENCE AND TECHNOLOGY,2019,47(3):301-306.
APA Peng, Deli,Hu, Xiaojian,Sun, Hang,&Li, Zhimin.(2019).Dry after-ripening, light, cold stratification and temperature effects on seed germination of Primula poissonii from Yunnan, China.SEED SCIENCE AND TECHNOLOGY,47(3),301-306.
MLA Peng, Deli,et al."Dry after-ripening, light, cold stratification and temperature effects on seed germination of Primula poissonii from Yunnan, China".SEED SCIENCE AND TECHNOLOGY 47.3(2019):301-306.
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