scholarly journals Features of phytosanitary condition of rose cultivars of miniature garden group of the collection of the Nikitsky Botanical Gardens

2019 ◽  
pp. 85-92
Author(s):  
L. N. Zvonareva ◽  
Z. K. Klimenko ◽  
I. N. Kravchenko
Keyword(s):  
Species Composition ◽  
Black Spot ◽  
Fungal Diseases ◽  
Point Scale ◽  
Botanical Gardens ◽  
The Crimea ◽  
Causative Agents ◽  
Sphaerotheca Pannosa ◽  
Macrosiphum Rosae ◽  
Tetranychus Urticae Koch

The objective of the research is the identification of dominant species of phytophagans and the determination of species composition of causative agents of phytopathogenic diseases of garden group of miniature rose cultivars. Methods of research . Species composition of pests was studied by visual inspection of generative and vegetative organs 1 time in 7-10 days. Samples of affections were analyzed under a binocular microscope in the laboratory. The frequency of pests’ occurrence was determined on a 3-point scale. The assessment of garden roses infestation with fungal diseases was carried out on a natural infectious background on a 5-point scale. Results and discussions. The study was performed on 49 cultivars, of which 46 were introduced species, 3 cultivars were of breeding of the Nikitsky Gardens. As a result of the research, three species of phytophagans belonging to three orders of the class Insecta - Homoptera , Lepidoptera Acarina were revealed. Green rose aphid (Macrosiphum rosae L.), rose moth (Archips rosana L.), twospotted spider mite (Tetranychus urticae Koch) were most commonly observed during the growing season. In 2016, the focus of reproduction of an invasive species - cattony cushion scale (Icerya purchasi Maskell) was found for the first time on the cultivar of the miniature group Rouletii. The species composition of pathogens of phytopathogenic diseases was identified, the most harmful of which are: powdery mildew (Sphaerotheca pannosa (Wallr)). Lev.), black spot (Marsonina rosae (Lib.) Died, rust (Phragmidium tuberculosis J.). Conclusion. The cultivars that are resistant to fungal diseases mainly dominated in the garden group of miniature roses. For the stable expression of this feature, it is necessary to create optimal conditions for cultivation: the use of preventive sprays with biological preparations or low-risk pesticides and compliance with the regime of agricultural activities. On the base of complex cultivar study, cultivar evaluation and phytosanitary evaluation of roses of the miniature garden group of the Nikitsky Botanical Gardens’ collection, an assortment for flower decoration was developed, including 46 cultivars for group planting, which can be recommended for landscaping parks, squares, streets in the populated areas of the Crimea.

DETERMINATION OF FUNGI RESISTANCE OF SEVERAL SAMPLES OF NATURAL LEATHER IN CONDITIONS OF ARMENIA

2021 ◽  
Vol 55 (2 (255)) ◽  
pp. 172-180
Author(s):  
Iren V. Shahazizyan ◽  
Inessa M. Eloyan ◽  
Ruzanna E. Matevosyan ◽  
Siranoush G. Nanagyulyan
Keyword(s):  
Species Composition ◽  
Soil Fungi ◽  
Spore Suspension ◽  
Fungal Resistance ◽  
Microscopic Fungi ◽  
Point Scale ◽  
Mold Resistance

In this work we studied the effect of microscopic soil fungi on some lather samples. The species composition of micromycetes inhabiting the samples under study was revealed, and an assessment of the fungal resistance of the materials under study was given. In the process of work, species of microscopic soil fungi were isolated and identified from the soil. In order to determine the degree of resistance to fungi for the infection of samples, a water-spore suspension was obtained. The leather materials were partially destroyed by microscopic fungi, and mold resistance ranged from 2 to 3 on a 5-point scale.

scholarly journals Using of tea-hybrid roses from the Nikita Botanical Gardens’ collection in the floriculture of the Southern Coast of the Crimea

2020 ◽  
pp. 65-77
Author(s):  
Z. K. Klimenko ◽  
S. A. Plugatar ◽  
V. K. Zykova ◽  
I. N. Kravchenko
Keyword(s):  
Optimal Timing ◽  
Southern Coast ◽  
Botanical Gardens ◽  
Biological Features ◽  
Different Types ◽  
Open Ground ◽  
The Crimea ◽  
Comprehensive Study

The article presents the results of a long-term research on the introduction study and evaluation of cultivars of tea-hybrid roses introduced and selected by the Nikitsky Botanical Gardens to determine the possibilities of their use in floriculture of the Southern Coast of the Crimea. The research was conducted in the period from 1955 to 2014. The material for the study was 679 cultivars of garden roses from the tea-hybrid garden group of the collection of the Nikitsky Botanical Gardens. As a result of a comprehensive study, 400 cultivars are recommended for use in the floriculture of the Crimea. The main options for this use becomes the growing of tea-hybrid roses in the open ground for gardening purposes in bush and tree-shaped forms, as well as the growing cultivars for cutting in both open and protected ground. The biological features of the cultivars, which determine the possibility of different types of the use and the cultivars, that have these features were identified: 400 cultivars were recommended for use in landscaping in bush form, 45 cultivars - also in tree-shaped form, 226 cultivars are promising for cutting in the open ground and 107 cultivars - for forcing and cutting in greenhouses. The main methods of propagation of cultivars of tea-hybrid roses under the conditions of the Southern Coast of the Crimea are budding and rooting of green and hardwood cuttings. The optimal timing for propagation by each of these methods is indicated. The best rootstocks for budding were identified, depending on the type of their use in floriculture. 

Methods of the sea buckthorn (Hippophae rhamnoides L.) plants evaluations concerning the pathogens resistance in the breeding on the adaptability

2021 ◽  
pp. 178-195
Author(s):  
V.V. Moskalets ◽  
◽  
T.Z. Moskalets ◽  
I.V. Grynyk ◽  
I.V. Shevchuk ◽  
...  
Keyword(s):  
Causative Agent ◽  
Crop Plants ◽  
Fungal Diseases ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Hippophaë Rhamnoides ◽  
Causative Agents ◽  
Alternaria Tenuis ◽  
The Common ◽  
Hippophae Rhamnoïdes L

The methods of the common sea buckthorn plants evaluation concerning their to diseases causative agents resistance in the agrocoenoses of the Institute of Horticulture of the National Academy of Agrarian Sciences of Ukraine and its network were elaborated on the basis of generalizing the phytopathological researches methodology as well as those methods importance in the breeding on the adaptability substantiated. The bioecological peculiarities and morphological symptoms of the pathogens appearance, namely: Verticillium albo-atrum Reinke & Berthold, Verticillium dahliae Klebahn, Fusarium camptoceras, Wollenw. & Reinking, Fusarium solani (Martius) Saccardo, Fusarium acuminatum, Wollenw., Fusarium oxysporum Schlechtendal та F. sporotrichioides Sherb., Monilia altaica А. Zukov., Stigmina hippophaes А. Zukov, Monochaetia ampelophila Auktorsnamn (Speg.), T.R. Nag Raj, Fomitiporia hippophaeicola (H. Jahn) Fiasson & Niemelä, Phoma elaeagnella Cooke, Coryneum elaeagni, Sphaeropsis malorum М.J. Berkeley, Nectria cinnabarina (Tode) E.M. Fries, Coniothecium epidermidis Corda, Alternaria tenuis Nees, Cytospora hippophaes Thüm. and others were described and the measures of their control considered as well as the ways assessing the investigated crop plants resistance against the diseases caused by the above mentioned causative agents. Besides, the methods were developed of the explored crop plants estimating as regards the basic fungal diseases resistance as well as the effective ways of the control of the main pathogens of the bacterial and fungal diseases. The evaluation of the plant damage by pathogens must be carried out in the orchards of different age. For example, the degree of the Hippophae rhamnoides L. resistance to fusarium wilt in the orchards needs be assessed within 5-6 years after planting. In the common sea buckthorn mother gardens on the older branches, it is necessary to control the causative agent Fomitiporia hippophaeicola. Its spread occurs in case of the branches injury when a plant management or harvesting or under the influence of the unfavourable abiotic factors. The studied crop phomosis seedlings is caused by the fungus Phoma elaeagnella, the display manifestation of which is also observed on the woody or soft cuttings in the nursery or film covers. Root necrosis brought by the fungus Coryneum elaeagni can be often fixed on the planting stock in the plants root. Alternaria the of plants Hippophae rhamnoides L., the causative agent of which is an tinber fungus Alternaria tenuis can be indicated by the drying in the branches of the lower story. When young twigs are affected by the fungus Plowrightia hippophaes (Dothidea hippophaes Fuckel, 1868), the causative agent of the ulcerative necrosis of the bark are numerous necrotic areas that cause rapid plant death. The infection stays in the affected plants wood, so it must be disposed from the plants. The researcher crop plants affected by the pathogen Pseudomonas syringae pv. hippophaeis decelerate the growth processes. In the breeding process attention should be paid to other causative agents of the studied crop, in particular, the species Phomopsis elaeagnicola, which causes the disease phomopsis, blight, that is "dead hand". Cytospora hippophaes, which is the sea buckthorn cytosporosis pathogen, has a significant parasitic effect, colonizing both living and dead branches that are not resistant to changing winter conditions, as well as early spring frosts when the appropriate agrotechnics is absent. The uncontrolled development of the hyphal fungus Coniothecium epidermidis brings about the fruitful branches drying, the fruit skin covering spherically with a black dense powdery layer. Besides, with the absence of the appropriate control the soil parasitic fungi Rhizoctonia solani, Pythium mycoparasiticum, Phytophthora irrigata cause the significant plants losses (up to 30 %). Therefore, in the Hippophae rhamnoides L. breeding on adaptability use the quality planting stock should be pruning, collection and burning of all the affected dry branches, must be carried out as well as the disinfection of cuts and mechanical damage with the 1 % solution of the copper sulfate and puttying them with the oil paint. It should be noted that the alternative to chemicals in the phytopathogenic bacteria control can be biological means on the basis of antagonistical bacteria, including the genera Bacillus and Streptomyces. One of the priority strategies for the fungal and bacterial diseases control is growing resistant cultivars.

scholarly journals Fungal diseases of Rose plant in Bangladesh

2014 ◽  
Vol 38 (2) ◽  
pp. 225-233 ◽  
Author(s):  
Anita Ghosh ◽  
Shamim Shamsi
Keyword(s):  
Aspergillus Flavus ◽  
Alternaria Alternata ◽  
Trichoderma Viride ◽  
Black Spot ◽  
Fungal Diseases ◽  
Rhizopus Stolonifer ◽  
Penicillium Sp ◽  
Botrytis Allii ◽  
Fusarium Sp ◽  
Academy Of Sciences

Five types of symptom were recorded on two varieties of rose plant. The symptoms were Black spot, Leaf spot1, Leaf spot2, Blight and Anthracnose. The study revealed the presence of 20 species of fungi belonging to 17 genera. The isolated fungi were Alternaria alternata (Fr.) Keissler, Arthrinium saccharicola Stevenson, Aspergillus flavus, Link., A. niger van Tiegh., Botrytis allii Munn, Cercospora sp., Cladosporium cladosporioides (Fresen.) de Vries, C. oxysporum Berk. & Curt., two species of Colletotrichum, Curvularia brakyospora Boedijn, Curvularia pallescens Boedijn, Fusarium sp., Epicoccum purpurascens Ehreneb ex Schlecht; Link, Gibberella sp., Marssonina rosea (Lib.) Died, Nigrospora sphaerica (Sacc.) Masson, Pestalotiopsis guepinii (Desm.) Stay. with its two culture types, Penicillium sp., Rhizopus stolonifer (Ehrenb. Ex. Fr) Vuill. and Trichoderma viride Pers. ex Fries. The frequency (%) of association of P. guepinii was higher than any other fungi. Pestalotiopsis guepinii and its two culture types were found to be pathogenic to rose plant. DOI: http://dx.doi.org/10.3329/jbas.v38i2.21347 Journal of Bangladesh Academy of Sciences, Vol. 38, No. 2, 225-233, 2014

Greenhouses of botanical gardens as a habitat of alien and native macrofungi: a case study in Poland

2014 ◽  
Vol 9 (8) ◽  
pp. 777-795
Author(s):  
Andrzej Szczepkowski ◽  
Błażej Gierczyk ◽  
Anna Kujawa
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Central Europe ◽  
Botanical Garden ◽  
Botanical Gardens ◽  
Agaricus Subrufescens ◽  
Number Of Species ◽  
Microscopic Features ◽  
Lepiotaceous Fungi

AbstractIn 2010, 16 macrofungi species were found in greenhouses of the Botanical Garden in Warsaw-Powsin. These included 8 species of lepiotaceous fungi and a few species known from warmer areas. For 3 species identified, which are new to Poland (Agaricus subrufescens, Leucocoprinus heinemannii, Marasmius teplicensis), a description is given, with drawings of their microscopic features and photographs. Species composition of macrofungi is compared in 5 complexes of greenhouses (Bayreuth, Graz, Jena, Paskov, Warsaw) in 4 countries from Central Europe. The total number of species in these 5 studies is 206, including 27 (13.2%) lepiotaceous fungi. The smallest number of species identified was in Warsaw (16). More than twice this number was recorded in Jena (33) and Graz (34), while the richest fungal biotas were in Bayreuth (79) and Paskov (88). Of the 16 species found in Warsaw, 8 were also found in other greenhouses. In the group of 33 species recorded in at least two complexes of greenhouses, the most abundant were the lepiotaceous fungi (39.4%) and mycenaceous fungi (15.1%). Leucocoprinus cepistipes and L. straminellus were recorded most often, in 4 of the 5 studied greenhouse complexes. CCA analysis demonstrated that the highest impact on species diversity is the area of greenhouses.

The species composition of pests of peach gardens in the Crimea

2020 ◽  
pp. 251-254
Author(s):  
E.B. Balykina ◽  
L.P. Yagodinskaya ◽  
D.A. Korzh ◽  
S.Y. Tsiupka ◽  
T.S. Rybareva ◽  
...  
Keyword(s):  
Species Composition ◽  
The Crimea

Survey on pomegranate anthracnose caused by Colletotrichum Gloeosporioides (Penz.) In Marathwada region

2017 ◽  
Author(s):  
Chavan A. A. ◽  
Dhutraj D. N.
Keyword(s):  
Disease Severity ◽  
Colletotrichum Gloeosporioides ◽  
Disease Incidence ◽  
Punica Granatum ◽  
Fungal Diseases ◽  
Point Scale ◽  
Disease Survey ◽  
Cropping Seasons ◽  
Cent Disease ◽  
Important Disease

Among fungal diseases anthracnose caused by Colleotrichum gloeosporioides is the most important disease. Survey of pomegranate (Punica granatum) orchards was conducted during 2013-14 in all the cropping seasons viz. mrig bahar, Hastabar and ambia bahar to assess the incidence and severity of anthracnose on pomegranate in Aurangabad, Jalna, Beed Osmanabad, Latur, Nanded, Hingoli and Parbhaani district of Marathwada region of Maharashtra state. The per cent disease incidence (PDI) and disease severity were recorded using 0-5 point scale. The maximum PDI on leaf was recorded in Hingoli (24.04%) followed by Nanded (22.62%) and Parbhani (22.22%) while least PDI recorded in Aurangabaad (15.09%). On fruit maximum PDI recorded in Parbhani (28.80%) which least in Beed district (19.02%). The 9.83 per cent disease variety on leaf was observed in Hingoli district and 10.70 per cent on fruit in Parbhani district. The maximum PDI (27.44%) on fruit and disease severity 12.45 per cent on fruit was recorded in Arakata. The maximum mean PDI 21.30 per cent on leaf and 25.85 per cent on fruit was recorded on trees aged above 5 years. The highest per cent disease incidence 25.34 per cent on leaf and 26.78 per cent on fruit was recorded on mrig bahar and the highest disease severity of leaf 10.05 per cent and fruit 11.22 per cent was reocrded in mrig bahar.

scholarly journals Main principles of ornamental crops cultivation under the conditions of the Southern Coast of the Crimea

2019 ◽  
pp. 9-16
Author(s):  
Yu. V. Plugatar ◽  
Z. K. Klimenko
Keyword(s):  
Ornamental Plants ◽  
Southern Coast ◽  
Botanical Gardens ◽  
Biological Features ◽  
The Crimea ◽  
Ornamental Crops

Introduction and breeding studies with ornamental plants have been carried out in the Nikitsky Botanical Gardens for about 200 years. During this time, 28 flower crops were studied. Currently, 8 flower collections are examined: garden roses, lilac, clematis, tulip, hybrid iris, hybrid daylily, garden canna, garden chrysanthemum. On the example of these flower cultures the biological features promoting success of cultivation of flower plants under the conditions of SCC are revealed and the main features of their agrotechnology under these conditions are given.

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