scholarly journals Osage Orange, Honey Locust and Black Locust Seed Meal Adhesives Employed to Fabricate Composite Wood Panels

Fibers ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 91 ◽  
Author(s):  
Tisserat ◽  
Harry-O’kuru
Keyword(s):  
Dimensional Stability ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Seed Meal ◽  
Flexural Properties ◽  
Osage Orange ◽  
Wood Panels ◽  
Honey Locust ◽  
Composite Wood ◽  
Tree Seed

Seed meal of three trees common to the Midwest region of the USA (Honey locust, Gleditsia triacanthos L., family Fabaceae), Osage orange (Maclura pomifera (Raf.) Schneid., family Moraceae) and Black locust (Robinia pseudoacacia L., family Fabaceae) were tested for their adhesive abilities. Seed meals were employed at dosage levels of 10, 15, 25, 50, 75, and 100% reinforced with Paulownia elongata L. wood (PW) or Osage orange wood (OOW) chips to fabricate composite wood panels (CWPs). A comparison of the flexural properties of various tree seed meal CWPs reinforced with PW showed that their flexural properties met or exceeded European Union standards. However, their dimensional stability properties were inferior to nominal standards. Therefore, tree seed meal CWPs could probably have applications in interior environments where such CWPs accept negligible dimensional stability standards.

scholarly journals Tolerance of Selected Tree Seed to Combinations of Preemergent Herbicides

1991 ◽  
Vol 9 (1) ◽  
pp. 44-46
Author(s):  
W. A. Geyer ◽  
C. E. Long
Keyword(s):  
Black Locust ◽  
Seedling Survival ◽  
Robinia Pseudoacacia ◽  
Dry Weight ◽  
Coffee Tree ◽  
Weight Growth ◽  
Honey Locust ◽  
Survival And Growth ◽  
Robinia Pseudoacacia L ◽  
Tree Seed

Abstract Black locust (Robinia pseudoacacia L.), honey locust (Gleditsia triacanthos L.), and Kentucky coffee tree (Gymnocladus dioica (L.) C. Koch) seed were planted in soil treated with various combinations of preemergent herbicides and grown in the greenhouse to determine herbicide effect on seedling survival and growth. Herbicides evaluated included Lasso (alachlor) alone at 2.2 a.i. kg/ha (2.0 a.i. lb/a), and in combination with Lorox (linuron) 1. 7 (1.5), Surflan (oryzalin) 2.2 (2.0), or Dacthal (DCPA) at 11.8 (10.5); Surflan (oryzalin) alone at 2.2 (2.0) and in combination with Dacthal (DCPA) 11.8 (10.5) or Lorox (linuron) 1.7 (1.5); Dacthal (DCPA) alone at 11.8 (10.5) and in combination with Lorox (linuron) 1.7 (1.5); and Lorox (linuron) at either 1.7 (1.5) or 3.3 (3.0). All treatment were acceptable on Kentucky coffee tree seed. Lasso (alachlor) or Dacthal (DCPA) alone or mixed together and applied to honey locust or black locust were acceptable in respect to height and/or dry weight growth. All other treatments were damaging to these two species.

scholarly journals The Effect of Different Temperatures and Durations on the Dormancy Breaking of Black Locust (Robinia pseudoacacia L.) and Honey Locust (Gleditsia triacanthos L.) Seeds

2010 ◽  
Vol 2 (4) ◽  
pp. 125-128 ◽  
Author(s):  
Mehmet BASBAG ◽  
Ali AYDIN ◽  
Davut AYZIT
Keyword(s):  
Black Locust ◽  
Germination Rate ◽  
Robinia Pseudoacacia ◽  
Control Sample ◽  
Dormancy Breaking ◽  
Gleditsia Triacanthos ◽  
Different Temperatures ◽  
Honey Locust ◽  
Pre Treatment ◽  
Robinia Pseudoacacia L

In order to break seed dormancy, different temperatures (20, 30, 40, 50, 60, 70, 80 and 90o C) and durations (10, 20 and 30 minutes) were applied to black locust (Robinia pseudoacacia L.) and honey locust (Gleditsia triacanthos L.) seeds, in the Seed Laboratory of Dicle University - Faculty of Agriculture in 2009. According to the research results, the highest germination rate for black locust seeds was obtained in the case of 90o C for 30 minutes pre-treatment (94.5%), whilst the lowest value was obtained for the 40o C for 10 minutes pre-treatment (7.5.0%). For honey locust the highest value was obtained at 50o C for 30 minutes (25.5%) and the lowest value was obtained in the case of control sample (6.8%).

scholarly journals Machinability Research of the Most Common Invasive Tree Species in Slovenia

Forests ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 752 ◽  
Author(s):  
Miran Merhar ◽  
Dominika Gornik Bučar ◽  
Maks Merela
Keyword(s):  
Tree Species ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Visual Assessment ◽  
Horse Chestnut ◽  
Tree Of Heaven ◽  
Invasive Tree ◽  
Honey Locust ◽  
Invasive Tree Species

This article investigates the quality of the machining surface of the five most common invasive tree species in Slovenia, i.e., black locust (Robinia pseudoacacia L.), boxelder maple (Acer negundo L.), horse chestnut (Aesculus hippocastanum), honey locust (Gleditsia triacanthos) and tree of heaven (Ailanthus altissima). The machining tests were made according to the American Society for Testing and Materials (ASTM) D1666-17 standard, where the quality of the surfaces after planing, routing and turning were evaluated with visual assessment, and the area and profile roughness parameters were also determined on selected specimens. The results showed that boxelder maple, horse chestnut and honey locust can be machined very well in all the studied operations, with the best results in routing and a little less good by turning, whereas the tree of heaven had the best quality in planing, and the worst by turning. Among all studied tree species, the black locust had the worst quality in planing, but the quality at routing was very similar to other tested species. The research also showed that there is little or no significant relationship between the qualities of the various types of machining for tested tree species.

Improved allometric equations for black locust (Robinia pseudoacacia) in the Coweeta Basin

2021 ◽  
Author(s):  
Joel L. Scott ◽  
Chelcy F. Miniat ◽  
Jessie Motes ◽  
Sarah L. Ottinger ◽  
Nina Wurzburger ◽  
...  
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Allometric Equations

scholarly journals HEAT-INDUCED CHEMICAL AND COLOR CHANGES OF EXTRACTIVE-FREE BLACK LOCUST (ROBINIA PSEUDOACACIA) WOOD

BioResources ◽  
2012 ◽  
Vol 7 (2) ◽  
Author(s):  
Yao Chen ◽  
Jianmin Gao ◽  
Yongming Fan ◽  
Mandla A. Tshabalala ◽  
Nicole M. Stark
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Color Changes ◽  
Free Black

scholarly journals Slenderness of trees in black locust stands

2018 ◽  
Vol 79 (2) ◽  
pp. 113-117
Author(s):  
Szymon Bijak ◽  
Katarzyna Orzoł
Keyword(s):  
Standard Deviation ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Habitat Type ◽  
Stand Age ◽  
Age Classes ◽  
Breast Height ◽  
Age Class ◽  
Crown Length ◽  
Research Material

Abstract This paper investigates the slenderness of black locust (Robinia pseudoacacia) trees in relation to the biosocial status of the trees, stand age class, crown parameters and habitat type. The research material was collected on 35 research plots in the Sława Śląska, Sulechów and Głogów forest districts in western Poland and comprises 1058 trees. For each tree, we measured height (h) as well as diameter at breast height (d) and determined its biosocial status (Kraft class), crown length (CL) and relative crown length (rCL). The age class and habitat type were assessed at the plot level. Because the obtained values for slenderness (s=h/d) diverged significantly from the normal distribution, we used Kruskal-Wallis and Mann-Whitney tests to investigate the influence of the above-mentioned parameters on the h/d ratio. Black locust slenderness ranged from 0.31 to 1.95 with an average of 0.91 (standard deviation 0.24). It furthermore differed significantly between Kraft classes (the higher the biosocial status, the lower the slenderness) and age classes (the older the trees, the lower their slenderness). We also found a significant effect of the habitat type (in oligotrophic sites trees formed more slender trunks than in mesotrophic sites) and crown parameters on the h/d ratio (decreasing with increasing crown length and relative crown length). The obtained results suggest that the slenderness of black locust does not differ substantially from native broadleaved trees in Poland.

scholarly journals Propagation from root cuttings for black locust (Robinia pseudoacacia L.) improvement in Hungary: a review

2019 ◽  
Vol 25 (1-2) ◽  
Author(s):  
Zs. Keserű ◽  
K. Rédei ◽  
J. Rásó ◽  
T. Kiss
Keyword(s):  
Genetic Variation ◽  
Forest Management ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Clonal Forestry ◽  
Wood Production ◽  
The World ◽  
More Care ◽  
Improved Cultivars ◽  
Robinia Pseudoacacia L

Black locust (Robinia pseudoacacia L.) is a valuable stand-forming tree species introduced to Europe approximately 400 years ago from North America. Today it is widely planted throughout the world, first of all for wood production. In Hungary, where black locust has great importance in the forest management, it is mainly propagated by seeds. But since the seed-raised plants present a great genetic variation, this type of propagation can not be used for Robinia’s improved cultivars. In the Hungarian black locust clonal forestry, propagation from root cuttings can be used for reproduction of superior individuals or cultivars in large quantities. However, this method demands more care than raising seedlings from seeds and can be applied with success in well-equipped nurseries.

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