scholarly journals Effects of storage on seed germination and viability for three native tree species of Ecuador

Trees ◽  
2020 ◽  
Vol 34 (6) ◽  
pp. 1487-1497
Author(s):  
Ximena Palomeque ◽  
Claudia Patiño Uyaguari ◽  
Franklin Marín ◽  
Mishel Palacios ◽  
Bernd Stimm
Keyword(s):  
Seed Germination ◽  
Tree Species ◽  
Native Tree ◽  
Native Tree Species

scholarly journals Seed germination of Bowdichia virgilioides Kunth, under water stress

2001 ◽  
Vol 5 (1) ◽  
pp. 115-118 ◽  
Author(s):  
Lígia M. de M. Silva ◽  
Ivor B. de Aguiar ◽  
Teresinha de J.D. Rodrigues
Keyword(s):  
Water Stress ◽  
Seed Germination ◽  
Sulphuric Acid ◽  
Stress Resistance ◽  
Water Availability ◽  
Tree Species ◽  
Native Tree ◽  
Drought Conditions ◽  
Native Tree Species ◽  
Osmotic Potentials

Bowdichia virgilioides (Leguminosae-Papilionoideae) is a native tree species in Brazil characteristic of the savannah vegetation. Seeds of this species were submitted to different osmotic potentials induced by polyethyleneglycol (PEG-6000) in order to verify their resistance to drought conditions. Seeds were previously scarified with sulphuric acid and incubated at 25 ºC with an eight hours photoperiod, at osmotic potentials of 0.0, -0.1, -0.3, -0.5, -0.7, -0.9 and -1.1 MPa. It was found that water stress resistance limit ranged from -0.7 to -0.9 MPa. Significant reduction in germination velocity from -0.3 MPa, and final percentage of germination from -0.5 MPa in relation to control, were observed. Germination under drastic conditions of water stress was inhibited, but was restored with an increase of water availability.

scholarly journals Interference of Pteridium arachnoideum (Kaulf.) Maxon. (Dennstaedtiaceae) on the establishment of rainforest trees

2010 ◽  
Vol 70 (2) ◽  
pp. 311-316 ◽  
Author(s):  
DM. Silva Matos ◽  
TA. Belinato
Keyword(s):  
Seed Germination ◽  
Tree Species ◽  
Field Experiments ◽  
Inhibitory Effect ◽  
Seedling Morphology ◽  
Secondary Species ◽  
Native Tree ◽  
Native Tree Species

In order to identify the effect of P. arachnoideum, we studied 11 native tree species commonly used in reforestation projects. Bioassays were conducted in laboratory to evaluate the effect of bracken leachate on the germination and morphology of seedlings. Juveniles of some of these species were planted in two adjacent but contrasting areas in relation to the dominance of P. arachnoideum. The evaluation of growth and survivorship was performed after six and twelve months. This study reveals that for some pioneer and secondary trees P. arachnoideum leachate exerted an inhibitory effect on seed germination and seedling morphology. Field experiments revealed that pioneers are apparently more resistant to P. arachnoideum leachate than secondary species.

Diné kinship as a framework for conserving native tree species in climate change

2019 ◽  
Vol 29 (6) ◽  
Author(s):  
Jaime O. Yazzie ◽  
Peter Z. Fulé ◽  
Yeon‐Su Kim ◽  
Andrew Sánchez Meador
Keyword(s):  
Climate Change ◽  
Tree Species ◽  
Native Tree ◽  
Native Tree Species

scholarly journals Responses of Transplanted Native Tree Species to Invasive Alien Grass Removals in an Abandoned Cattle Pasture in the Lacandon Region, Mexico

2012 ◽  
Vol 5 (2) ◽  
pp. 192-207 ◽  
Author(s):  
Francisco J. Román-Dañobeytia ◽  
Jorge Castellanos-Albores ◽  
Samuel I. Levy-Tacher ◽  
James Aronson ◽  
Neptalí Ramírez-Marcial ◽  
...  
Keyword(s):  
Tree Species ◽  
Native Tree ◽  
Cattle Pasture ◽  
Native Tree Species

scholarly journals Outstanding performance of an invasive alien tree Bischofia javanica relative to native tree species and implications for management of insular primary forests

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9573
Author(s):  
Tetsuto Abe ◽  
Nobuyuki Tanaka ◽  
Yoshikazu Shimizu
Keyword(s):  
Tree Species ◽  
Logistic Model ◽  
Forest Community ◽  
Population Increase ◽  
Canopy Trees ◽  
Native Trees ◽  
Native Tree ◽  
Native Tree Species ◽  
Bischofia Javanica ◽  
Primary Forests

Invasive alien tree species can exert severe impacts, especially in insular biodiversity hotspots, but have been inadequately studied. Knowledge of the life history and population trends of an invasive alien tree species is essential for appropriate ecosystem management. The invasive tree Bischofia javanica has overwhelmed native trees on Haha-jima Island in the Ogasawara Islands, Japan. We explored forest community dynamics 2 years after a typhoon damaged the Sekimon primary forests on Haha-jima Island, and predicted the rate of population increase of B. javanica using a logistic model from forest dynamics data for 19 years. During the 2 years after the typhoon, only B. javanica increased in population size, whereas populations of native tree species decreased. Stem diameter growth of B. javanica was more rapid than that of other tree species, including native pioneer trees. Among the understory stems below canopy trees of other species, B. javanica grew most rapidly and B. javanica canopy trees decreased growth of the dominant native Ardisia sieboldii. These competitive advantages were indicated to be the main mechanism by which B. javanica replaces native trees. The logistic model predicted that B. javanica would reach 30% of the total basal area between 2017 (in the eastern plot adjacent to a former B. javanica plantation) and 2057 (in the western plot distant from the plantation site), which is a maximum percentage allowing to eradicate under the present guideline of the National Forest. The results suggest immediate removal of B. javanica is required to preserve native biodiversity in these forests.

scholarly journals Key decision-making criteria for dormancy-breaking and ability to form seed banks of Cerrado native tree species

2020 ◽  
Vol 34 (4) ◽  
pp. 694-703
Author(s):  
Maria Luciana Zequim Colado ◽  
Letícia Koutchin Reis ◽  
Angélica Guerra ◽  
Bruno Henrique dos Santos Ferreira ◽  
Diego Rezende Fonseca ◽  
...  
Keyword(s):  
Decision Making ◽  
Tree Species ◽  
Seed Banks ◽  
Dormancy Breaking ◽  
Native Tree ◽  
Native Tree Species ◽  
Decision Making Criteria
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