scholarly journals VEGETATIVE REPRODUCTION OF POPLAR BASHKIR PYRAMIDAL BEREZIN-LEVASHOV (POPULUS NIGRA L. × P. NIGRA F. ITALICA DUROI) IN THE CONDITIONS OF THE EDUCATIONAL EXPERIMENTAL FARM OF UFA LEMONARIUM

2020 ◽  
Vol 38 (4) ◽  
pp. 104-113
Author(s):  
L.N. Blonskaya ◽  
◽  
K.M. Agliullina ◽  

This article examines the vegetative reproduction of a hybrid poplar of the Bashkir selection by winter stem cuttings in a greenhouse with the use of growth and root formation stimulants. The issue of obtaining in the required volumes of standard planting material of ornamental plants is currently very relevant, especially for the Bashkir pyramidal poplar, for which vegetative reproduction is the only possible option, since there are only male specimens of this hybrid, as at the stage of selection were destroyed females. To obtain exact copies of the mother plant, cuttings are the best way of propagation. The article discusses the use of 3 growth stimulants and control (without stimulants), describes the biometric characteristics of the obtained saplings, characterizes the length of the root system, the time for rooting, survival of rooted saplings. Identified the most effective preparations and conditions for growing saplings. The conducted research makes it possible to develop practical recommendations for the cultivation of rooted cuttings of the Bashkir pyramidal poplar in a greenhouse.

2012 ◽  
Vol 29 (No. 2) ◽  
pp. 41-50 ◽  
Author(s):  
M. Henselová

  A study was made of the stimulating effect of benzolinone (3-benzyloxycarbonyl-methyl)-2-benzothiazolinone in powder form (P) and its mixture with indole butyric acid (IBA), the biofungicide Supresivit and fungicide Captan 50 WP on the root formation of 17 species of ornamental plants, park and fruit woody species. Under the action of benzolinone, the yield of rooted cuttings in the category of ornamental plants amounted to 44.5% (in the Dianthus sp.) up to 83.7% (in Rosa canina), in the category of park woody species it was from l6.7 (in Magnolia stellata) to 100% (in Forsythia intermedia). In fruit trees represented by two species, viz. Actinidia arguta and cherry rootstocks, the yield was between 20 and 86.7%, and in two allochthonous species Cotoneaster horizontalis and Philadelphus coronarius it was from 96.7 to 100% in rooted cuttings. In the case of herbaceous and semi-lignified cuttings, lower concentrations of benzolinone below 0.1% were more effective, while on the contrary, higher concentrations of 0.1–0.2% proved more effective with lignified cuttings. In the species with difficult root formation, such as Magnolia stellata, Viburnum farreri and Actinidia arguta, benzolinone demonstrably stimulated both the rhizogenesis, and thereby the overall yield of rooted cuttings, and the quality of the root system. In the case of the species with naturally high rooting ability, the positive effect of benzolinone was manifest mainly in the quality of the root system. The synergistic action of the above stimulants on root formation was achieved in two and three-component benzolinone mixtures with IBA and fungicides on the basis of the active ingredients captan and Trichoderma harzianum. The most evident stimulating effects on the rooting of cuttings in Dianthus sp., Ficus schlechteri and the deciduous species Acer saccharinum Pyramidale, Prunus padus Colorata and Prunus kurilensis Brilliant was obtained in three-component mixtures.


2020 ◽  
Vol 23 ◽  
pp. 01009
Author(s):  
Roman A. Shchukin ◽  
Oleg E. Bogdanov ◽  
Ilya P. Zavoloka ◽  
Gennady S. Ryazanov ◽  
Nikolay M. Kruglov

This article presents data on the rooting of green cuttings of the studied species of ornamental trees and shrubs in a greenhouse with a misting system. We accounted the number of days from planting to the root formation and the number of rooted cuttings for each replication during our performance. We studied the influence of root formation stimulants on the rooting rate of various types of ornamental deciduous, flowering and coniferous plants. The effect of application of root formation stimulants is confirmed by the formation of a high-quality root system that is superior in length to those that were vegetated without “Kornevin”. However, the use of root formation stimulants is not advisable on shrubby cinquefoil, common privet and common lilac “Mademoiselle Casimir Perier”, because there is practically no increase in the rooting rate of cuttings in these plant species, compared to the control plants.


2014 ◽  
Vol 32 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Lílian EB Baldotto ◽  
Marihus A Baldotto

Plant regulators, as well as bioactive fractions of the organic matter, can accelerate the development and increase the efficiency of adventitious rooting in ornamental plants. We evaluated rooting in the Brazilian red-cloak (Megaskepasma erythrochlamys) and sanchezia (Sanchezia nobilis) cuttings in response to application of indole-butyric acid (IBA) and humic acids (HA). Stem cuttings of both species treated with solutions of 0, 250, 500, 1000, 2000 mg/L of IBA and 0, 10, 20, 30, 40 mmol/L of C of HA were placed in 2.0 L plastic pots containing carbonized rice husk, kept in greenhouse. Survival of cuttings, number of leaves and shoot and root fresh and dry matter were evaluated 45 days after. Data were used to run an analysis of variance. We observed the average contrasts, calculated the regression equations and estimated the concentrations that provided the best efficiency in terms of root dry matter. For IBA, 185.4 and 66.8 mg/L were the concentrations that promoted the highest root dry matter accumulation in the Brazilian red-cloak and sanchezia, respectively, with increments of 140 and 22.5% in relation to the control. HA, at 33.6 mmol L-1 of C, increased shoot fresh and dry matter in the Brazilian red-cloak, but reduced root formation compared to the control. In sanchezia, HA at 19.5 mmol L-1 of C promoted increases of 35.9% in root dry matter in relation to the control. We concluded that IBA, in the abovementioned concentrations, increased adventitious rooting in cuttings of both the Brazilian red-cloak and sanchezia, while optimal doses of HA solutions are very likely to improve adventitious rooting in sanchezia, but not in the Brazilian red-cloak.


Author(s):  
H. F. Kelko ◽  
U. I. Torchyk ◽  
G. A. Kholopuk

Modern urbanization processes lead to the need to introduce new approaches to urban gardening in the practice of green building, which in turn requires the renewal and expansion of the range of ornamental plants that are used, characterized by their compactness and high resistance to environmental factors. An important role in this is given to plant introduction, designed at the first stage to assess the prospects of introductions and draw conclusions about the advisability of their further use in gardening. This article presents the results of primary introductory tests of 10 cultivars of 4 species of the genus Juniperus L., conducted in 2008–2018. It is established that the cultivars studied are characterized by a stable rhythm of shoot growth, which begins in late April and ends in the first half of September, which ensures the success of their wintering in the open ground. The evaluation of the regenerative capacity of stem cuttings made it possible to identify among the objects as hard-to-root forms (J. horizontalis ‘Emerald Spreader’ and ‘Monber’, J. sabina ‘Tam No Blight’ and J. chinensis ‘Gold Coast’) and medium- (J. horizontalis ‘Prince of Wales’, ‘Limeglow’ and ‘Glacier’, J. conferta ‘Shlager’) and easily rooted (J. horizontalis ‘Winter Blue’ and ‘Yukon Belle’). Satisfactory ability of stem cuttings to root formation allows to organize the production of planting material on the territory of the republic.


2021 ◽  
Vol 39 ◽  
pp. 04009
Author(s):  
N.A. Lopachev ◽  
V.T. Lobkov ◽  
V.P. Naumkin ◽  
A.L. Bykov

An assessment of the efficacy of preparations (Kornevin, SP; Albit, TPS; Epin-extra) in the production of planting material of Northern white cedar by vegetative propagation with wood cuttings under the conditions of the Central Black Earth Region of the Russian Federation is given on the example of the Orel region. All the studied preparations had a significant effect on the rooting process of cuttings. The obtained and analyzed data of phenological observations showed that the greatest effect on the acceleration of the onset of the of root formation phase had preparation “Albit, TPS”, 3-4 weeks earlier than the control. The number of formed cuttings and their length were also mainly influenced by “Albit, TPS”, which increased the average number of roots by 3 pcs., and their average length by 44 mm, in comparison with the control. The effect of the use of the biostimulator “Albit, TPS” had a significant influence on the number of established cuttings, providing 20 rooted cuttings or 28% more than in the control.


HortScience ◽  
2005 ◽  
Vol 40 (7) ◽  
pp. 2052-2055 ◽  
Author(s):  
Mateja Štefančič ◽  
Franci Štampar ◽  
Gregor Osterc

The influence of two exogenously applied auxins (IAA and IBA) on the root and shoot development of leafy cuttings was analyzed at 'GiSelA 5', the dwarfing cherry rootstock. IBA (indole-3-butyric acid) hindered the callus formation in the early period of root development and it was more successful than IAA (indole-3-acetic acid) in promoting earlier root development. IBA also influenced the stronger shoot growth and the development of acrobasal type of the rooting system, and induced higher number of roots. Those parameters are very important for the quality and survival of the new plants and they are not the consequence of the higher IAA content in the rooting zones of cuttings in the first days of root development. Both auxin treatments had no effect on the final percent of the rooted cuttings neither on the survival of cuttings, but they increased the percent of rooted cuttings without callus. The root system with callus proved less qualitative, because the cuttings with such root system developed significantly less roots per rooted cutting and their shoot length was shorter than those of the cuttings without callus at both auxin treatments. Exogenously applied auxins were not crucial for root formation, however their application resulted in higher percent of more qualitative 'GiSelA 5' leafy cuttings. IBA proved as the most efficient treatment and it additionally induced earlier root formation.


1990 ◽  
Vol 20 (3) ◽  
pp. 365-368 ◽  
Author(s):  
Daniel K. Struve ◽  
Steven E. McKeand

Container-grown rooted stem cuttings from 13 eastern white pine (Pinusstrobus L.) clones were paired with open-pollinated bare-root seedlings to compare growth through age 8 years of the two stock types. Before planting, measures of root system quality (number of roots per cutting, root distribution, and weighted root score) were recorded for each ramet to relate growth to initial root system quality. Rooted cuttings had higher survival than seedlings through year 8, 78 vs. 68%, respectively, but the difference was not statistically significant. Rooted cuttings were significantly shorter than seedlings after age 4 years, with differences between stock types increasing in magnitude through year 8. Measures of root system quality of rooted cuttings were not significantly correlated with survival or growth at any age.


2021 ◽  
Vol 27 (2) ◽  
pp. 213-220
Author(s):  
Bhupendra Singh ◽  
Jagmohan Singh Rawat ◽  
Yogandra Singh Gusain ◽  
Vinod Prasad Khanduri ◽  
Manoj Kumar Riyal ◽  
...  

Abstract This study investiges the rooting ability and the growth performance of lower and upper shoot positions and type of the cuttings, i.e. soft and hard wood and leafy and non leafy, of Tecoma stans (L.) Kunth. The cuttings were collected from 4-year old plants growing in the Chauras Campus of H.N.B. Garhwal University Srinagar Garhwal, Uttarakhand, India. The rooting ability of cuttings was studied under the treatments of indole-3-butyric acid (IBA) and Indole 3-acidic acid (IAA) under 0.0%, 0.3%, 0.4%, 0.5% concentration in both hormones. The rooting response was significantly (p < 0.05) better in 0.4% IBA compared to other treatments and control (0% IBA and IAA). The ratio of number of roots to rooted cuttings and length of root to rooted cuttings in the different treatments showed significant differences (p < 0.05). The rooted cuttings were further transferred, into the polythene bags and shifted to open nursery conditions. Under such conditions, the rooted cuttings treated with 0.4% and 0.5% IBA demonstrated the highest (90% to 100%) survival capacity in the lower portion soft wood and leafy stem cuttings. Plantable plant and plant height was greater in the 0.4% IBA concentration treatment. The results of the study suggest that rooting of soft wood stem cuttings having lower position and leaves could be an effective mean of regenerating to T. stans. Furthermore, the application of 0.4% IBA concentration treatment is appropriate for rooting of juvenile leafy stem cuttings in a mist chamber.


2018 ◽  
Vol 21 (02) ◽  
pp. 64-67
Author(s):  
Mistratova A N ◽  
Bopp L V

The biological effects of sapropel in the technology of growing sea- buckthorn seedlings are studied. It is established that the rooting of green cuttings of the studied varieties on the sapropelic substrate is higher compared to the classic version – peat + sand by 2,0 – 31,3%. It is revealed that the composition of the substrate, the use of the root formation stimulator and varietal characteristics of culture influence the further development of plants grown by the non-transplant method at the place of green cuttings rooting. The most positive effect on the quality of the sea-buckthorn planting material is obtained on the substrate of peat + sand. It is recommended to use the sapropel-based substrate for rooting of the sea-buckthorn stem cuttings in the production conditions, and to apply the transplant method for seedlings further growing.


1998 ◽  
Vol 22 (4) ◽  
pp. 231-234 ◽  
Author(s):  
Barry Goldfarb ◽  
Scott E. Surles ◽  
Mack Thetford ◽  
Frank A. Blazich

Abstract Stem cuttings of loblolly pine (Pinus taeda L.) were rooted in a greenhouse and then scored for the number of roots per rooted cutting, the number of vertically oriented roots per rooted cutting, and symmetry of the arrangement of adventitious roots on the lower stem. Rooted cuttings were transplanted to a nursery bed, grown for 7 months, lifted and rescored, transplanted to a field location, and then measured after 1 yr in the field. Shoot height after the rooting period was correlated weakly with the number of roots per rooted cutting, but not with the number of vertical roots or root system symmetry. Nursery culture slightly reduced the number of roots per cutting and root system symmetry. Root orientation changed dramatically as roots elongated, with 94% of all roots scored as vertical after nursery growth. Shoot height after the period of nursery growth was still correlated weakly with root number, but not with the number of vertical roots. Rooted cuttings with symmetrical root systems were slightly taller than cuttings with asymmetrical root systems after growth in the nursery. After 1 yr in the field, shoot height was no longer correlated with root number. On average, cuttings with symmetrical root systems were only 2 mm taller than cuttings with asymmetrical root systems. These early growth data suggest it is not beneficial to impose culling criteria for cuttings rooted in a greenhouse and transplanted to a nursery based on the root system architecture at the time of rooting. However, growth and stability of rooted cuttings over a longer time period must be assessed. South. J. Appl. For. 22(4): 231-234.


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