scholarly journals Naphthenic acids - alternative rooting stimulators in black locust microshoots

2014 ◽  
pp. 7-13
Author(s):  
Branislav Kovacevic ◽  
Slavko Kevresan ◽  
Sasa Orlovic ◽  
Dragana Miladinovic ◽  
Vera Cirin-Novta ◽  
...  
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Forest Tree ◽  
Naphthenic Acids ◽  
Control Treatment ◽  
In Vitro Cultivation ◽  
Test Treatments ◽  
Robinia Pseudoacacia L ◽  
Positive Effect

The study describes the rooting effect of naphthenates and their fractions on in vitro grown Robinia pseudoacacia L. shoots. Natural naphthenic acids have been isolated by alkaline extraction from middle fraction of crude oil type ?Velebit? from Vojvodina, characterized and fractionated. Black locust shoot bases were immersed in ACM medium [Ahuja, 1984] without agar supplemented with either 10, 50 or 100 ?M of basic naphthenate preparation, naphthenate fractions obtained by extraction at different pHs (pH 2, pH 4, pH 7 and pH 9), or indole- 3-butyric acid (IBA). Treated shoots have been then grown on hormone-free medium for four weeks. Significant differences among test treatments were recorded during the third and the fourth week of in vitro cultivation. Final evaluation was performed on the basis of rooting percentage after four weeks of cultivation. The highest rooting percentage (>70%) was achieved after the treatment with solution containing 50 ?M of IBA. However, treatment with 10 ?M of naphthenate preparation achieved also positive effect on rooting (>60%). Average rooting percentage in the control treatment was just 45%. Our results with black locust confirm previous results gained with some other agricultural and forest tree species that naphthenates have the potential to stimulate rooting in shoots and cuttings.

scholarly journals Influence of Regeneration Method on the Yield and Stem Quality of Black Locust (Robinia pseudoacacia L.) Stands: a Case Study

2012 ◽  
Vol 8 (1) ◽  
pp. 103-112 ◽  
Author(s):  
Károly Rédei ◽  
Imre Csiha ◽  
Zsolt Keserű ◽  
János Gál
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Forest Tree ◽  
Wood Production ◽  
Stem Quality ◽  
Medium Quality ◽  
Robinia Pseudoacacia L ◽  
Root Suckers

Abstract - Black locust (Robinia pseudoacacia L.) is one of the most important forest tree species in Hungary, covering approximately 23% of the forested land and providing 25% of the annual timber output of the country. One third of these black locust stands are high forests (planted with seedlings) and the remainder coppices. According to the forestry regulations black locust stands can be regenerated both by root suckers and with seedlings in Hungary. This study investigates the influence of different regeneration methods on wood production, stem quality and health. Properly managed regeneration from root suckers produced a higher yield than regeneration from seedlings at a harvest age of 35-37 years. The results show that regeneration of black locust stands from root suckers can be recommended on good and medium quality sites without a decrease in yield or stem quality.

scholarly journals Black locust (Robinia pseudoacacia L.) selection programmes in Hungary: a short review

2016 ◽  
Vol 22 (3-4) ◽  
Author(s):  
I. Csiha ◽  
Zs. Keserű ◽  
J. Rásó ◽  
K. Rédei
Keyword(s):  
Black Locust ◽  
Insect Pests ◽  
Robinia Pseudoacacia ◽  
Short Review ◽  
Forest Tree ◽  
High Grade ◽  
Short Summary ◽  
Sprouting Ability ◽  
Timber Yield ◽  
Robinia Pseudoacacia L

Black locust (Robinia pseudoacacia L.) was the first forest tree species introduced from North America to Europe, at the beginning of the 17th century. Its unprecedented fast spread is due to its high-grade adaptability, drought-tolerance, abundant and frequent seed crop, excellent sprouting ability, fast growth and relatively high timber yield. Other advantages are, that it has scarcely any fungi or insect pests. This review is a short summary on black locust improvement in Hungary, giving guidance for specialists who are interested in black locust management.

scholarly journals A simplified method for application of natural regeneration in black locust (Robinia pseudoacacia L.) stands in Hungary

2021 ◽  
Vol 67 (No. 2) ◽  
pp. 66-70
Author(s):  
Veronika Honfy ◽  
Tamás Ábri ◽  
Lajos Juhász ◽  
János Rásó ◽  
Zsolt Keserű ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Stand Structure ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Forest Tree ◽  
Auxiliary Table ◽  
Medium Quality ◽  
Yield Table ◽  
Robinia Pseudoacacia L ◽  
Root Suckers

Black locust (Robinia pseudoacacia L.) is one of the most important forest tree species in Hungary, covering approximately 24% of the forest land and providing 25% of the annual timber supply. One third of these black locust stands are high forests (planted with seedlings) and the remaining stands are coppices. An auxiliary table was developed for planning the black locust natural regeneration in order to determine the sprouting criteria based on stand volume at the final cutting age. Twenty forest subcompartments were selected for investigating the possibility of black locust regeneration by root suckers. The basic yield and stand structure factors were determined using the numerical yield table for black locust stands. The results show that the regeneration of black locust stands from root suckers can be recommended on good and medium quality sites without a decrease in yield or stem quality. Black locust stands of good and medium quality (yield classes I, II, III and IV) may be regenerated from suckers in general until their growing stock attains and if their health is adequate. The simplicity of the practice-oriented auxiliary table based on the black locust yield table may further the development of management and wood utilization of the species.

scholarly journals Trees, seeds and seedlings analyses in the process of obtaining a quality planting material for black locust (Robinia pseudoacacia L.)

2020 ◽  
Vol 12 (4) ◽  
pp. 940-958
Author(s):  
Andrea M. ROMAN ◽  
Irina M. MORAR ◽  
Alina M. TRUȚA ◽  
Cătălina DAN ◽  
Adriana F. SESTRAȘ ◽  
...  
Keyword(s):  
Black Locust ◽  
Growth Traits ◽  
Seedling Emergence ◽  
Robinia Pseudoacacia ◽  
Basal Area ◽  
Tree Height ◽  
Forest Tree ◽  
Planting Material ◽  
Field Coefficient ◽  
Robinia Pseudoacacia L

Black locust (Robinia pseudoacacia L.) was among the first North-American tree species imported in Europe. In Romania, black locust has established itself as a forest tree appreciated for multiple uses. The objective of the hereby study was to identify a quality planting material at black locust using seeds from trees with superior traits from five stands geographically close, located in North-western of Romania. An empirical selection was done, thus trees with the most favourable traits were selected as plus trees. Among the averages of the main traits (tree height, diameter at breast height, basal area, self pruning trunk length, crown diameter) of the plus trees from the five stands, there were registered significant differences, and two stands stood out with a high biomass growth. Even if the stands had different ages (between 20-35 year), the age did not influence significantly the growth traits of the trees. The seeds of the plus trees (open-pollinated) from all the stands had large size (mean seed weight of 0.057 g/seed). The seedling emergence rate was high, especially in the solarium condition (between 52.7-73.7% compared with 33.0-41.3% in the field). Coefficient of genetic correlation and heritability calculated for the seedlings belongings to half-sib families highlighted that black locust breeding can be extremely effective by a proper selection.

scholarly journals Impact of saline solution on growth and photosystem II during in vitro cultivation of Bromelia antiacantha (Bromeliaceae)

Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Rosiane Cipriano ◽  
João Paulo Rodrigues Martins ◽  
Luiz Carlos de Almeida Rodrigues ◽  
Antelmo Ralph Falqueto ◽  
Andreia Barcelos Passos Lima Gontijo
Keyword(s):  
Photosystem Ii ◽  
Saline Solution ◽  
Growth Traits ◽  
Photosynthetic Apparatus ◽  
Solution Culture ◽  
In Vitro Cultivation ◽  
Ms Medium ◽  
Number Of Leaves ◽  
Positive Effect

Abstract In vitro cultivation is a technique with wide application for micropropagation. However, each species has specific mineral needs for this type of cultivation. The objective was to assess the impacts of the saline solution culture medium on the performance of the photosynthetic apparatus and growth of Bromelia antiacantha during in vitro cultivation, and thus to elucidate the mitigation of the nutritional imbalance that can interfere in the electron transport in the plants. Plants were cultivated in a salt concentration gradient of MS medium (0%, 25%, 50%, 75% or 100%). The growth traits and fluorescence a chlorophyll were analyzed. Intermediate concentrations of MS medium resulted in plants with a larger number of leaves and longer root length. The OJIP curves and results of the JIP test showed that the plants grown without MS salts presented less efficient photosystem II (PSII), as indicated by the performance index [Pi(total)]. In contrast, the intermediate concentrations (MS 25% and 50%) had a positive effect on the performance of the photosynthetic apparatus. The MS 25% medium can be used for in vitro cultivation of B. antiacantha, enabling the development of plants with suitable physiological qualities for planting in the field.

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.

Sign in / Sign up

Export Citation Format

Share Document