SAPROPEL IN THE TECHNOLOGY OF PRODUCTION OF SEA-BUCKTHORN SEEDLINGS

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.

2021 ◽  
Vol 22 (1) ◽  
pp. 57-66
Author(s):  
E. N. Cheremnykh ◽  
T. G. Lekontseva ◽  
A. V. Khudyakova ◽  
A. V. Fedorov

The paper presents the results of 2018-2019 research on improving the technology of growing planting material of bog cranberry (Vaccinium oxycoccos L.) of Krasa Severa, Severyanka, Virussaare varieties on the basis of in vitro. Studied was the effect of the concentrations of growth regulators in the composition of the nutrient medium according to Anderson's recipe on the reproduction and subsequent rooting of micro cuttings, as well as the duration of cultivation and adaptation of micro plants depending on partial pruning of shoots. It has been established that at the stage of introduction into in vitro culture, sterilization of explants with 33% hydrogen peroxide in an exposure of 5-8 minutes with washing in 5 portions of sterile distillate gives 60-80 % of viable shoots. The optimum phase of plant development for the successful introduction of in vitro culture is the swelling of buds. Cultivation of micro cuttings was carried out in a light room at a temperature of 25±2 °С, a photoperiod of 16 hours. The duration of each subculturing was 30-60 days. For the stage of actual micropropagation on Anderson's nutrient medium, an increase in the dose of cytokinin 6-benzylaminopurine (6-BAP) from 0.2 to 0.5 mg/l and an increase in the duration of cultivation from 30 to 60 days contributed to a significant increase in the multiplication factor on average for the tested cranberry varieties.According to the efficiency of micropropagation, the varieties Virussaare and Krasa Severa were distinguished – 9.3-12.0 pcs/stalk, respectively. At the rooting stage, the use of a root-forming reagent of indolyl-3-acetic acid (IUK) in doses of 0.2, 0.5 and 1.0 mg/l in the composition of Anderson's nutrient medium did not affect the quality of root formation and the length of shoots of Virussaare micro-plants. No significant varietal differences in the root-forming ability of microcuttings were found. The tendency of better rooting of micro cuttings was observed in the Virussaare variety (90.3 %) compared to the Severyanka (85.7 %) and Krasa Severa (79.3 %) varieties. Micro plants of the Krasa Severa cultivar were characterized by the longest shoots, the total number of roots was less, but their length was longer in comparison with other cultivars. For the adaptation stage, a substrate from a mixture of lowland peat and sphagnum moss was used (1:1). The efficiency of adaptation of micro plants of cranberry varieties when cutting the tip of the shoots was 100 %. Pruning of micro plants shoots contributed to the formation of more side shoots and better development of the aboveground part of the plants.


2019 ◽  
Author(s):  
A A Batukaev ◽  
D O Palaeva ◽  
M S Batukaev ◽  
E A Sobralieva

New methods for adapting in-vitro grape plants to in vivo conditions were developed. The use of growth regulators (6-BAP, 2iP, kinetin) enhanced rhizogenesis and increased the in-vitro plant reproduction coefficient. Lignohumate had a positive effect on plants and increased the leaf area and plant height 30 days after adaptation (concentration of 1.0 g/l). The use of the developed elements of clonal micro-reproduction and adaptation made it possible to significantly increase the reproduction factor, improve the quality of planting material, reduce costs of plants and increase profitability.


2020 ◽  
pp. 1-19
Author(s):  
Stefania Nin ◽  
William Antonio Petrucci ◽  
Adelaide Turchi ◽  
Edgardo Giordani

BACKGROUND: There is no mention in the literature of vegetative propagation of Vaccinium myrtillus. OBJECTIVE: The aim of the study was to evaluate the rooting potential of bilberry rhizome and stem cuttings. METHODS: Rhizome and stem cuttings collected in early Autumn were dipped in different IBA solutions (0 – 2000 – 4000 mgL–1) and rooted in non-sterilized V. myrtillus soil and expanded perlite under controlled growth chamber environment or under mist with basal heating in a greenhouse for 12 weeks. RESULTS: Rhizome cuttings showed high rooting potential in plant growth regulator (PGR) free substrates. Conversely, stem cuttings took advantage from IBA treatments; this positive effect on rooting percentage was synergistically increased when rooted in agriperlite. A higher rooting capacity was achieved when rhizome and stem cuttings were placed in agriperlite, however number of developed roots and shoots were much higher when V. myrtillus turf was used as substrate. Mist and bottom heating did not improve rooting significantly. CONCLUSIONS: V. myrtillus can be successfully propagated both by rhizome and stem cuttings. With an overall rooting success of 56–68% and with a reasonably good growth rate, production of planting material from stem cuttings of V. myrtillus offers opportunities for a cheaper, practically feasible and technically less demanding alternative means of propagation.


2021 ◽  
Author(s):  
S.V. Varshini ◽  
C. Jayanthi

Ever increasing demand for food and fodder due to growing population and livestock necessitates the urgency to improve productivity of the fodder crops. In this context, the concept of vegetative propagation technologies serves as an important tool for higher productivity. Conventionally, crops such as sugarcane, cassava, bajra napier hybrid grass and napier grass were cultivated by stem cuttings. This depends heavily on the quality of planting material and their availability. It is a huge barrier for the cultivation of fodder grass as the quality of planting material influences the sprouting, establishment, growth, tillering and fodder yield of grasses and also the higher requirement of planting material increases the overall cost of cultivation. Therefore, a more robust approach needs to be developed to address these limitations. Normally propagation by vegetative means assumes importance when desirable biotypes need to be multiplied in a short span of time. Also a suitable method of planting and number of buds reduce the cost of cultivation as well as transportation. Similarly one and two budded setts are ideal for optimum germination compared to larger seed pieces. Horizontal planting of stem cuttings is the most practical approach which increased sprouting and yield. Based on this ideology this paper reviews the various aspects of influence of planting methods and number of buds by vegetative propagated setts on sprouting, growth and productivity of fodder grasses.


2017 ◽  
Vol 36 (1) ◽  
pp. 39
Author(s):  
S. W. Indiati

<p>Gall mites Eryophyes gastroticus is a pest of sweet potato in dry season and has spread in some production centers in Indonesia. The symptoms of the attack is characterized by galls on leaf, petiole and stem, with a narrow hole at the top of the galls. Estimated yield loss caused by the pest was accounted 11%. On the other hand, the gall mite attacks decrease the quality of stem cuttings as a planting material. The use of gall-free cuttings, sanitation, setting planting time; mechanical control, and using chemical or botanical pesticides, either in combination or a single application are suggested to control the pest.</p><p>Keywords: Sweet potato, gall mites, Eryophyes gastroticus, control</p><p> </p><p><strong>ABSTRAK</strong></p><p>Tungau puru <em>(gall mite</em>) merupakan hama ubi jalar pada musim kemarau dan telah menyebar di berbagai sentra produksi ubi jalar di Indonesia. Gejala serangan ditandai dengan terbentuknya puru atau benjolan pada daun, tangkai daun, dan batang dengan bagian ujung puru terdapat lubang kecil. Serangan tungau puru menurunkan hasil ubi jalar sekitar 11%. Selain menurunkan hasil umbi, serangan puru juga menyebabkan petani sulit memperoleh setek sehat sebagai bahan perbanyakan tanaman. Tungau puru dapat dikendalikan dengan memadukan beberapa komponen pengendalian, antara lain penggunaan setek batang bebas puru, sanitasi lingkungan, pengaturan waktu tanam, pengendalian mekanis, dan pengendalian dengan pestisida nabati ataupun kimia.</p><p>Kata kunci: Ubi jalar, tungau puru, <em>Eryophyes gastroticus</em>, pengendalian</p>


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.


2020 ◽  
Vol 24 ◽  
pp. 00054
Author(s):  
Natalia Mistratova ◽  
Valentina Bopp

Gooseberry is one of the common berry crops in Siberia. But despite its merits, the gooseberry is characterized by a weak development of plant phytomass when propagated by stem cuttings, and as a result, a decrease in the quality of planting material. The results of studies of various backgrounds of non-root fertilizing showed that the variant using exogenous treatments of Zn 1% + Cu 1% + 6 micronutrient elements showed an increase in the area of the leaf blade to 12.9 cm2. The accumulation level of copper, zinc, manganese and cobalt on plots using leaf fertilizing exceeded the control. Non-root feeding of Zn 1% + Cu 1% + 6 micronutrients of gooseberry when growing planting material by the green cuttings method increases the level of micronutrient accumulation (Zn, Co, Mn) in the leaves and activates growth processes – contribute to the development of assimilation surface.


Author(s):  
G. A. Pavlenkova ◽  
O. Yu. Emelyanova

Sweet mock orange f. golden dwarf (Philadelphus coronarius L. f. aureus nanus) is a promising ornamental shrub in green building within Central Russia. In the Orel Region, this species has a limited occurrence due to the lack of quality planting material, which warrants research into rhizogenesis of P. coronarius f. aureus nanus stem cuttings during soſtwood graſting. Trials were conducted during 2017-2019 in triplicate, 20 cuttings each, adhering to the common woody plant soſtwood graſting propagation technique. Two yearling types were used, side shoots and innovations. Experimental setups: 1 — control (water); 2 — aqueous indolebutyric acid (IBA) 50 mg/L at 18-h exposure; 3 — bottom cutting powdering with 0.5 g/kg active coal-IBA mixture; 4 — bottom cutting treatment with 50 mg/L IBA at 18-h exposure followed by powdering with 0.5 g/kg active coal-IBA mixture. Setup 2 (IBA 50 mg/L) rendered the highest positive effect on the rooting and reproduction of side shoot and innovation-derived stem cuttings. Te best cutting root system biometry (number and length of 1st order roots) was obtained in setup 2 with the innovation cuttings (10.50 roots of 4.53 cm) compared to the side-shoot ones (9.81 roots of 3.68 cm).


2013 ◽  
Vol 21 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Anne Eschen ◽  
Franzisca Zehnder ◽  
Mike Martin

This article introduces Cognitive Health Counseling 40+ (CH.CO40+), an individualized intervention that is conceptually based on the orchestration model of quality-of-life management ( Martin & Kliegel, 2010 ) and aims at improving satisfaction with cognitive health in adults aged 40 years and older. We describe the theoretically deduced characteristics of CH.CO40+, its target group, its multifactorial nature, its individualization, the application of subjective and objective measures, the role of participants as agents of change, and the rationale for choosing participants’ satisfaction with their cognitive health as main outcome variable. A pilot phase with 15 middle-aged and six older adults suggests that CH.CO40+ attracts, and may be particularly suitable for, subjective memory complainers. Implications of the pilot data for the further development of the intervention are discussed.


GYNECOLOGY ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Tatyana Yu. Pestrikova ◽  
Elena A. Yurasova ◽  
Igor V. Yurasov

Relevance. Endometriosis is a common gynecological disease that affects up to 10% of women of reproductive age worldwide and is the main cause of pain and infertility. Endometriosis is a disease, although it has been known for a long time, nevertheless, in many ways it represents terra incognita for modern medicine. Aim. Analysis of literature on the feasibility of long-term and the use of the drug dienogest 2 mg (Vizanne), which has a positive effect on the quality of life of patients with endometriosis. Materials and methods. To write this review, a search was made for domestic and foreign publications in Russian and international search engines (PubMed, eLibrary, etc.) over the past 13 years. The review included articles from peer-reviewed literature. Results. The review presents data on the difficulties of verifying the diagnosis of endometriosis due to a combination of this pathology with pain, infertility, abnormal uterine bleeding. The pathogenesis of the origin of endometriosis-associated pain is presented. The efficacy of the use of the drug dienogest (Vizanne), which has a powerful antiproliferative effect that reduces the main symptoms of endometriosis (pain, bleeding), is substantiated. The expediency of long-term and safe use of the drug dienogest (Vizanne), which has a positive effect on the quality of life of patients with endometriosis, has been proved. Conclusions. Numerous scientific publications confirm the feasibility of prolonged use of the drug dienogest (Vizanne), to achieve remission during endometriosis.


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