Biotechnological basis for application of growth regulators for rooting of green cuttings of trees and shrubs in a greenhouse with a misting system

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.

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Synergistic effect of benzolinone with IBA and fungicides on the vegetative propagation of ornamental plants, park, and fruit woody species

Horticultural Science ◽

10.17221/4459-hortsci ◽

2012 ◽

Vol 29 (No. 2) ◽

pp. 41-50 ◽

Cited By ~ 2

Author(s):

M. Henselová

Keyword(s):

Root System ◽

Root Formation ◽

Ornamental Plants ◽

Woody Species ◽

Fruit Trees ◽

Indole Butyric Acid ◽

Rooted Cuttings ◽

Actinidia Arguta ◽

Allochthonous Species

  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.

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Assessment of the usefulness of selected media used in the rooting process of lavender cotton shoot cuttings

Folia Horticulturae ◽

10.1515/fhort-2016-0023 ◽

2016 ◽

Vol 28 (2) ◽

pp. 195-200

Author(s):

Stanisława Szczepaniak ◽

Zdzisław Guzikowski ◽

Monika Henschke

Keyword(s):

Root System ◽

Mineral Soil ◽

High Quality ◽

Rooted Cuttings ◽

Mother Plants ◽

Medium Type

Abstract Lavender cotton (Santolina chamaecyparissus L.) shoot cuttings, obtained from two-year-old mother plants, were rooted in five different media under an unheated foil tunnel. Two ready-made and widely recommended media were used: Hartmann peat substrate and Ceres peat-coconut substrate, as well as three prepared mixtures: high peat + mineral soil, high peat + perlite and high peat + sand. The influence of medium type on the number of rooted cuttings and the quality of the root system was assessed for two cultivation times during a three-year study after eight weeks from the date of cutting. As far as the ready-made rooting substrates are concerned, Ceres peat-coconut substrate turned out to be better when compared with the Hartmann substrate. The number of high quality rooted cuttings was larger when media containing high peat mixed with either mineral soil or sand were used in comparison with the mixture of high peat and perlite.

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Influence of IAA and IBA on root development and quality of Prunus 'GiSelA 5' leafy cuttings

HortScience ◽

10.21273/hortsci.40.7.2052 ◽

2005 ◽

Vol 40 (7) ◽

pp. 2052-2055 ◽

Cited By ~ 23

Author(s):

Mateja Štefančič ◽

Franci Štampar ◽

Gregor Osterc

Keyword(s):

Root System ◽

Root Development ◽

Root Formation ◽

Callus Formation ◽

Early Period ◽

Rooted Cuttings ◽

Efficient Treatment ◽

Rooted Cutting ◽

Gisela 5

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.

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INFLUENCE OF PHYSIOLOGICALLY ACTIVE SUBSTANCES ON DEVELOPMENT OF OWN-ROOTED SEEDLINGS IN NURSERY

Russian vine ◽

10.32904/2712-8245-2021-18-11-15 ◽

2021 ◽

Vol 18 ◽

pp. 11-15

Author(s):

N.I. Zimina ◽

◽

S.I. Melnikova ◽

O.I. Kolesnikova ◽

◽

...

Keyword(s):

Survival Rate ◽

Plant Growth ◽

Root System ◽

Root Formation ◽

High Quality ◽

Growth Processes ◽

Physiologically Active Substances ◽

One Year ◽

Positive Effect ◽

Active Substances

The purpose of the research was to identify growth stimulators that promote the activa-tion of growth processes and root formation, to improve the technology of growing high-quality own-rooted grape seedlings from shortened three-eyed cuttings. The influence of physiologically active substances (PAS): Epin, Silk, Kornevin, Nikfan, Kavkaz on sur-vival, activation of growth processes, root formation of shortened cuttings of Bianca grapes was determined. As a result of pro-cessing cuttings with PAS, the survival rate of cuttings in the nursery increased by 10.6–19.1 % relative to the control. The yield of seedlings of the variety in the experimental variants exceeded the control indicators by 2.8–18.4 %. The effect of preparations on plant growth was noted, the increase in one-year growth in the variants varied from 5.8 to 18.0 cm relative to the control. When the ba-sal part of the cuttings was briefly immersed in a 0.01 % solution of Nikfan, the growth length was 78.1 cm, when soaked in a 0.1 % solution of Kornevin – 76.8 cm, in a 0.1 % solution of Silk –75.5 cm, in the control this indicator was 60.1 cm. The positive effect of growth stimulants on the development of the root system has been established. The indica-tor of the average number of roots per own-rooted seedling for the variants varied from 10.5 to 12.5 pcs., in the control variant – 10.7 pcs. According to the complex of indi-cators, a variant with the treatment of the ba-sal part of the cuttings for 24 hours with the preparation Kornevin-0.1% was identified.

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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

RUSSIAN ELECTRONIC SCIENTIFIC JOURNAL ◽

10.31563/2308-9644-2020-38-4-104-113 ◽

2020 ◽

Vol 38 (4) ◽

pp. 104-113

Author(s):

L.N. Blonskaya ◽

◽

K.M. Agliullina ◽

Keyword(s):

Root System ◽

Root Formation ◽

Vegetative Reproduction ◽

Ornamental Plants ◽

Hybrid Poplar ◽

Stem Cuttings ◽

Rooted Cuttings ◽

Planting Material ◽

And Control ◽

Practical Recommendations

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.

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Lateral root formation and nutrients: nitrogen in the spotlight

Plant Physiology ◽

10.1093/plphys/kiab145 ◽

2021 ◽

Author(s):

Pierre-Mathieu Pélissier ◽

Hans Motte ◽

Tom Beeckman

Keyword(s):

Signaling Pathways ◽

Root System ◽

Root Development ◽

Lateral Root ◽

Molecular Mechanisms ◽

Root Formation ◽

Lateral Roots ◽

Nutrient Use Efficiency ◽

Lateral Root Formation ◽

Lateral Root Development

Abstract Lateral roots are important to forage for nutrients due to their ability to increase the uptake area of a root system. Hence, it comes as no surprise that lateral root formation is affected by nutrients or nutrient starvation, and as such contributes to the root system plasticity. Understanding the molecular mechanisms regulating root adaptation dynamics towards nutrient availability is useful to optimize plant nutrient use efficiency. There is at present a profound, though still evolving, knowledge on lateral root pathways. Here, we aimed to review the intersection with nutrient signaling pathways to give an update on the regulation of lateral root development by nutrients, with a particular focus on nitrogen. Remarkably, it is for most nutrients not clear how lateral root formation is controlled. Only for nitrogen, one of the most dominant nutrients in the control of lateral root formation, the crosstalk with multiple key signals determining lateral root development is clearly shown. In this update, we first present a general overview of the current knowledge of how nutrients affect lateral root formation, followed by a deeper discussion on how nitrogen signaling pathways act on different lateral root-mediating mechanisms for which multiple recent studies yield insights.

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