Dispersal and germination of winged seeds of Brandisia hancei, a shrub in karst regions of China

doi:10.1016/j.pld.2020.11.006

KIB OpenIR

	Dispersal and germination of winged seeds of Brandisia hancei, a shrub in karst regions of China
	Ren,Yongquan ; Huang,Chengling ; Zhang,Jiaming ; Ma,Yongpeng ; Tian,Xiaoling
	2021
发表期刊	PLANT DIVERSITY
ISSN	2096-2703
卷号	43 期号:3 页码:234-238
摘要	Brandisia hancei (Paulowniaceae) is a widely distributed shrub in karst regions in southwestern China. Its seeds have a membranous wing, and they mature just before the rainy season begins. To assess the effect of the wing on seed dispersal and germination of B. hancei, we measured the dispersal distance at varying wind speeds and release heights, falling duration from different release heights, floating duration on still water, rates of imbibition of water, and drying and soil adherence to seeds. Germination experiments were conducted on intact and de-winged seeds immediately after harvest. The wing increased the falling duration in still air and the floating ability on water. Dispersal distance of winged and de-winged seeds did not differ at a wind speed of 2.8 m s(-1), but at 3.6 and 4.0 m s(-1) dispersal distances were greater for de-winged than for winged seeds. Seed wing had little effect of absorption and retention of water, but significantly increased soil adherence to the seeds. Mature seeds were non-dormant and germinated to over 90% with a mean germination time of about 10 days. By combining the environmental conditions in karst habitat with the seed traits of B. hancei, we conclude that dispersal and germination of winged seeds are adapted to the precipitation seasonality in heterogeneous habitats absence of soil. Copyright (C) 2020 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
关键词	Anemochory Hydrochory Membranous wing Seed dispersal Winged seed LONG-DISTANCE DISPERSAL WIND-SPEED TRAITS GROWTH MODEL WATER
DOI	10.1016/j.pld.2020.11.006
WOS记录号	WOS:000661912800007
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73332
专题	中国科学院昆明植物研究所
作者单位	1.Guizhou Minzu Univ, Coll Ecoenvironm Engn, Guiyang 550025, Peoples R China 2.Kunming Inst Bot, Yunnan Key Lab Integrat Conservat Plant Species E, Kunming 650201, Yunnan, Peoples R China 3.Guizhou Minzu Univ, Coll Humanities & Sci, Guiyang 550025, Peoples R China
推荐引用方式 GB/T 7714	Ren,Yongquan,Huang,Chengling,Zhang,Jiaming,et al. Dispersal and germination of winged seeds of Brandisia hancei, a shrub in karst regions of China[J]. PLANT DIVERSITY,2021,43(3):234-238.
APA	Ren,Yongquan,Huang,Chengling,Zhang,Jiaming,Ma,Yongpeng,&Tian,Xiaoling.(2021).Dispersal and germination of winged seeds of Brandisia hancei, a shrub in karst regions of China.PLANT DIVERSITY,43(3),234-238.
MLA	Ren,Yongquan,et al."Dispersal and germination of winged seeds of Brandisia hancei, a shrub in karst regions of China".PLANT DIVERSITY 43.3(2021):234-238.