Seed Germination Characteristics of a Critically Endangered Evergreen Oak-Quercus marlipoensis (Fagaceae) and Their Conservation Implications

doi:10.3390/f15020235

KIB OpenIR

	Seed Germination Characteristics of a Critically Endangered Evergreen Oak-Quercus marlipoensis (Fagaceae) and Their Conservation Implications
	Liu, Luting; Tu, Yu; Li, Qiansheng; Deng, Min
	2024
发表期刊	FORESTS
卷号	15 期号:2 页码:235
摘要	Seed germination is among the most crucial and vulnerable stages in plant life cycles. Quercus marlipoensis is a critically endangered sclerophyllous oak. Only one population has ever been found worldwide in the tropical montane cloud forests of southeastern Yunnan, China, and it has shown difficulties with regeneration. However, its seed biological traits and key restrictive germination factors remain unknown. We investigate the impacts of scarification, temperature, and water potential on the seed germination of Q. marlipoensis. Results show that the seeds show typical epicotyl dormancy. The seed germination increased when removing part or all of the pericarp and part of the cotyledon (one-third and two-thirds). The seeds can germinate at 5 to 30 C-degrees, but the highest T50 was achieved at 25 C-degrees. When the water potential decreased from 0 to -1.0 MPa, the germination rate decreased but the germination time increased. Q. marlipoensis seeds are typically recalcitrant and highly sensitive to moisture loss, but the species can tolerate animal predation and low germination temperatures. The more frequent climatic extremes and droughts in the Indo-China region will severely degrade its natural habitats. Therefore, ex situ conservation to preserve its germplasm and introduce seedlings into a suitable habitat are essential for its conservation management.
DOI	10.3390/f15020235
WOS记录号	WOS:001175093800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75809
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Liu, Luting,Tu, Yu,Li, Qiansheng,et al. Seed Germination Characteristics of a Critically Endangered Evergreen Oak-Quercus marlipoensis (Fagaceae) and Their Conservation Implications[J]. FORESTS,2024,15(2):235.
APA	Liu, Luting,Tu, Yu,Li, Qiansheng,&Deng, Min.(2024).Seed Germination Characteristics of a Critically Endangered Evergreen Oak-Quercus marlipoensis (Fagaceae) and Their Conservation Implications.FORESTS,15(2),235.
MLA	Liu, Luting,et al."Seed Germination Characteristics of a Critically Endangered Evergreen Oak-Quercus marlipoensis (Fagaceae) and Their Conservation Implications".FORESTS 15.2(2024):235.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
10.3390_f15020235.pd（3784KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载