scholarly journals Sea buckthorn fly, manifestations of its turn and control in agrocenoses of buckthorn

2021 ◽  
pp. 12-18
Author(s):  
T. Moskalets ◽  
V. Moskalets ◽  
I. Grynyk ◽  
I.V. Shevchuk
Keyword(s):  
Morphological Characteristics ◽  
Weather Conditions ◽  
Morphological Features ◽  
Sea Buckthorn ◽  
Agricultural Technology ◽  
Research Network ◽  
Forest Steppe ◽  
Herbaceous Vegetation ◽  
Northern Forest ◽  
And Control

Goal. To investigate the bioecological and morphological features of the sea buckthorn fly, to evaluate the manifestations of parasitism and methods of phytophage control in agrocenoses of the sea buckthorn. Methods. Census of sea buckthorn flies was carried out in agrocenoses of sea buckthorn of the The Institute of Horticulture of the National Academy of Agrarian Sciences of Ukraine, its research network. The studies used sea buckthorn varieties of domestic and foreign selection, which differ in ripeness groups: mid-early, mid-ripening, late-ripening. Results. In the conditions of the Polesia-Forest-Steppe and Forest-Steppe ecotopes, a pest of agrocenoses of the sea buckthorn buckthorn fly was revealed. Bioecological features and morphological characteristics of this pest have been investigated. It has been established that in the conditions of the Western and Northern Forest-steppe of Ukraine, mid-early and mid-season varieties of sea buckthorn suffer from the sea buckthorn fly. A set of measures has been developed for the use of elements of agricultural technology, biological and chemical preparations for the control of sea buckthorn flies in sea buckthorn agrocenoses. Conclusions. It has been shown that the populations of the sea buckthorn fly are numerous on plants of early and mid-season varieties of sea buckthorn, in particular, on such as: Chuiskaya, Pagorbova, Morkvyana, Pavilionna. It was found that the larvae of flies penetrate the fruits, where they feed on the pulp, after which the sea buckthorn fruits become completely unsuitable for fresh consumption and for processing. Research carried out during 2017—2020 in the conditions of the Polesia-Forest-Steppe and Forest-Steppe ecotopes, it was possible to identify varieties of sea buckthorn (Orangevya, Adaptyvna), which are relatively resistant to sea buckthorn fly. It has been established that carrying out agrotechnical measures for loosening the soil in the near-stem part of plants and aisles, sowing perennial herbaceous vegetation in the aisles against the background of changing weather conditions significantly inhibits the development of the sea buckthorn fly and reduces damage to sea buckthorn fruits.

scholarly journals Varietal features of photosynthetic activity of Tyumen seed oats when applying mineral fertilizers

2021 ◽  
Vol 215 (12) ◽  
pp. 59-76
Author(s):  
Anna Lyubimova ◽  
Dmitriy Eremin
Keyword(s):  
Biomass Accumulation ◽  
Net Photosynthesis ◽  
Weather Conditions ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Northern Forest ◽  
Net Productivity ◽  
Leaf Surface Area ◽  
Photosynthetic Potential ◽  
First Time

Abstract. The purpose is to study the varietal characteristics of the photosynthetic efficiency of oats when applying fertilizers in Western Siberia. Methods. The research was carried out on an experimental field located in the northern forest-steppe of the Trans-Urals. Photosynthetic potential and net productivity of photosynthesis were determined by the Nichiporovich’s method. Results. The nature of the formation of the assimilation surface and the accumulation of biomass of oat varieties Otrada, Talisman and Foma at different levels of mineral nutrition was studied. The photosynthetic potential and the net productivity of photosynthesis are calculated. The share of the influence of weather conditions, agrophone and variety on the studied indicators is determined. The Foma variety was characterized by maximum leafiness, compared to the Talisman and Otrada. On a natural agrophone, its assimilation surface in the sweeping phase reached 36.0 ± 5.5 thousand m2, at Otrada and Talisman – 28.1 and 24.0 thousand m2 per 1 ha of sowing. A very strong variability of the leaf surface area in Otrada was revealed (Cv = 24 %). The use of mineral fertilizers enhances the development of the leaf apparatus by 44–50 % and causes competition between oat plants. A close positive correlation was revealed between the leaf area in the sweeping phase and yield (r = 0.72). The area of the assimilation surface of oats is affected by: weather conditions – 37 %; nutrition level – 30 % and variety – 25 %. It was found that the Otrada and Foma varieties have the same accumulation dynamics and form the maximum photosynthetic biomass by the sweeping phase. The nature of biomass accumulation depends on weather conditions by 39 %; on mineral fertilizers by 29 % and on the genotype of the variety by 17 %. The productivity of the studied varieties is formed by increasing the assimilation surface, rather than increasing the efficiency of photosynthesis. Scientific novelty. For the first time, the photosynthetic potential was determined and the efficiency of the net photosynthesis productivity of oat varieties of the Tyumen selection was revealed. The share of the influence of various factors in the formation of the oat crop in the conditions of the Northern Trans-Urals has been established.

scholarly journals Morphological variability, biochemical parameters of Hippophae rhamnoides L. berries and implications for their targeted use in the food-processing industry

2019 ◽  
Vol 9 (4) ◽  
pp. 749-764 ◽  
Author(s):  
T. Z. Moskalets ◽  
V. S. Frantsishko ◽  
O. V. Knyazyuk ◽  
V. M. Pelekhatyi ◽  
N. P. Pelekhata ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Global Climate ◽  
Morphological Variability ◽  
Economic Value ◽  
Morphological Characteristics ◽  
Sea Buckthorn ◽  
Forest Steppe ◽  
Ecological Features ◽  
Catchment Areas ◽  
High Yields

The results of studying the morphological and biochemical parameters of plants of sea buckthorn are presented. For the first time, genotypes of sea buckthorn ranked by ontogenetic and morphological characteristics and ecological features (relation to the level of soil moisture and humidity air, providing soil nutrients, its рН, amount and mode of precipitation, lighting, positive and negative temperatures) natural, semi-natural and anthropic coenopopulations genotypes of sea buckthorn be ranked by ecomorphic affiliation to certain climate ecotypes (рolissia, forest-steppe) and subecotypes (western-forest-steppe, northern-forest-steppe, рolissia–forest-steppe, central-forest-steppe). Biotypes, that have been a limited ability to carry soil and atmospheric drought (in which the root system is well developed, ground part with copious leaf cover), selected in natural and semi-natural places of growth appertain tо mesophytes (Ms). The genotypes, selected in catchment areas, the lowlands of Forest-Steppe, Polissia of Ukraine, appertain to mesohygrophytes (MsHg) (by morphological and physiological features characterized by weak drought and heat resistance – 6 points, require sufficient moisture and sufficient provision of organic and mineral substances, are weak frost resistant, but very resistant to temperature changes during the winter). A special group makes up widely ecological flexibility mesophyte plants of sea buckthorn – mesoxerophytes (wfMsKs) – are presented рolissia–forest-steppe subecotype, characterized by wide environmental plasticity, due to the high winter, drought and frost resistance, compared to others subecotype. Its have adapted to withstand prolonged of soil and air in the extreme phases of ontogeny, in particular, in the phase of fruit filling and ripening, giving high stable harvest. Particular breeding and economic value in terms of formation stably high yields under conditions of global climate change, its aridization and displacement borders zoning of fruit crops have xeromesophytes (KsMs) presented central forest-steppe subecotype – in view of the its relatively average demanding to soil and air moisture and resistance to moisture deficiency. Highlighted forms – sources of valuable economic features of sea buckthorn (large berry, firm skin, long berry peduncles and dry separation of berries and іts increased biological value, freezing capacity and making beverages, high yields.

scholarly journals On the Quality of Bare-Grained Oats and Influence of its Cultivation Technology Elements on the Yie

2021 ◽  
Vol 14 (4) ◽  
pp. 1754-1759
Author(s):  
Elena Anatolyevna Yegushova
Keyword(s):  
Quality Indicators ◽  
Early Period ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Sowing Time ◽  
Northern Forest ◽  
Pure Steam ◽  
Sowing Period

The research was carried out with the aim to establish the formation regularity of both yield and its elements, as well as to formulate technological and quality indicators of bare-grained oats under the influence of different sowing periods. The studies were carried out in the conditions of the northern forest-steppe zone of the Kemerovo region (Russia) on the territory belonging to the Kemerovo Research Institute of Agriculture, a branch of the SFNCA RAS in 2018-2019. The soil of the site is leached chernozem, heavy loamy in granulometric composition, of medium thickness. The object of research was the mid-season variety of bare-grained oats Bare-grained. The predecessor is pure steam. Sowing was carried out in three periods: early – on May 4 (when the soil was physically ripe, subsequent ones with an interval of 8-10 days, depending on the prevailing weather conditions), medium - on May 12 and 14, late - on May 20 and 24. Against the background of each sowing period, the seeding rates of 4.0 were studied; 4.5; 5.0; 5.5; 6.0 million crops/ha. It has been established that the optimal sowing time for obtaining high quantitative indicators (yield, number of grains, grain size) of bare-grained oats in the northern forest-steppe of the Kemerovo region is an early period (first decade of May); while a later period (third decade of May) is more promising for such high-quality indicators as protein content, fat in grain, essential and nonessential amino acids, etc. The optimal seeding rate for bare-grained oats at early sowing period is 4.0-4.5 million/ha. At a later period, it is advisable to increase the seeding rate to 5.0-5.5 million/ha.

scholarly journals First Report of Ascochyta Leaf Spot Caused by Phoma exigua var. exigua on Common Bean in Greece

Plant Disease ◽  
2008 ◽  
Vol 92 (4) ◽  
pp. 653-653 ◽  
Author(s):  
G. A. Bardas ◽  
G. T. Tziros ◽  
K. Tzavella-Klonari
Keyword(s):  
Common Bean ◽  
Leaf Spot ◽  
Morphological Characteristics ◽  
Pathogenic Fungi ◽  
Weather Conditions ◽  
Conidial Suspension ◽  
Phoma Exigua ◽  
First Report ◽  
Plastic Bags ◽  
And Control

Common bean (Phaseolus vulgaris L.) is cultivated extensively in Greece for dry and fresh bean production. During 2005 and 2006, a disease with typical blight symptoms was observed occasionally on dark red kidney, brown kidney, and black bean plants in most bean-producing areas of Greece. It rarely was destructive unless the crop had been weakened by some unfavorable environmental conditions. Infected leaves had brown-to-black lesions that developed concentric zones 10 to 30 mm in diameter and also contained small, black pycnidia. Concentric dark gray-to-black lesions also appeared on branches, stems, nodes, and pods. Infected seeds turned brown to black. Plants sometimes showed defoliation and pod drop. The fungus was consistently isolated on potato dextrose agar from diseased leaves and pods and identified as Phoma exigua var. exigua Sutton and Waterstone on the basis of morphological characteristics of conidia and pycnidia (1,2). Spores were massed in pycnidia from which they were forced in long, pink tendrils under moist weather conditions. Conidia were cylindrical to oval, allantoid, hyaline, pale yellow to brown, usually one-celled, and 2 to 3 × 5 to 10 μm. To satisfy Koch's postulates, a conidial suspension (1 × 106 conidia per ml) of the fungus was sprayed onto leaves and stems of bean seedlings (first-leaf stage) (cv. Zargana Hrisoupolis). Both inoculated and control seedlings (inoculated with sterile water) were covered with plastic bags for 72 h in a greenhouse at 23°C. Inoculated plants showed characteristic symptoms of Ascochyta leaf spot 12 to 15 days after inoculation. The fungus was reisolated from lesions that developed on the leaves and stems of all inoculated plants. The pathogen is present worldwide on bean. To our knowledge, this is the first report of P. exigua var. exigua on common bean in Greece. References: (1) D. F. Farr et al. Fungal Databases. Systematic Botany and Mycology Laboratory. Online publication. ARS, USDA, 2007. (2) B. C. Sutton and J. M. Waterstone. Ascochyta phaseolorum. No. 81 in: Descriptions of Pathogenic Fungi and Bacteria. CMI/AAB, Kew, Surrey, England, 1966.

scholarly journals Assessment of the adaptive potential of the plum-tree to the conditions of the winter period in the northern forest-steppe of the Southern Urals

2021 ◽  
Vol 38 ◽  
pp. 00120
Author(s):  
Tatyana Slepneva ◽  
Sergey Makarenko ◽  
Alexander Taranau
Keyword(s):  
Weather Conditions ◽  
Southern Urals ◽  
Climatic Conditions ◽  
Winter Period ◽  
Forest Steppe ◽  
Adaptive Potential ◽  
The Southern Urals ◽  
Northern Forest ◽  
The Stability ◽  
Plum Tree

The results of assessment are presented the stability of 13 sorts of plum-tree P. salicina subsp. ussuriensis Koval. et Kost. to the climatic conditions in the winter period from 2015/16 to 2020/21 in the northern forest-steppe of the Southern Urals. Like the control sort Ural’skaya zolotistaya by high adaptability to the conditions of the winter period are characterized sorts Altajskaya yubilejnaya, Zavet, Pionerka, Sapfir, Seyanec Krasnogo shara, Sodruzhestvo, Sinil’ga, Ural’skie zori, Chernosliv pozdnij. Stable fruiting over the years, regardless of weather conditions, during the flowering period with a yield of 62.0 to 91.6 hundredweight/ha are mark out with an increasing total sort Altajskaya yubilejnaya, Pionerka, Chernosliv pozdnij. The control sort Ural’skaya zolotistaya exceeds the yield of the sort Altajskaya yubilejnaya (91.6 hundredweight/ha), at the level of control the yield of the sorts Sodruzhestvo (71.5 hundredweight/ha), Sapfir (70.0 hundredweight/ha).

scholarly journals On the biology of different samples of wild ramson onions in the conditions of the Bashkir Cis-Urals

2021 ◽  
Vol 206 (03) ◽  
pp. 67-73
Author(s):  
Lenvera Tuhvatullina ◽  
Oleg Zhigunov
Keyword(s):  
Research Work ◽  
Weather Conditions ◽  
Botanical Garden ◽  
Early Summer ◽  
Forest Steppe ◽  
Northern Forest ◽  
Pests And Diseases ◽  
Adverse Weather Conditions ◽  
Adverse Weather ◽  
Open Ground

Abstract. The purpose is to study the phenology, morphometry, reproductive biology, and propagation characteristics of the following species and samples of wild ramson onion: A. microdictyon Prokh. (Bashkir sample), A. victorialis L. (Moscow and Syktyvkar samples), A. ursinum L. (Moscow sample), A. ochotense Prokh. (Syktyvkar and Irkutsk samples). Methods. The study of wild ramson samples was carried out in 2016-2020 under the conditions of the culture in the South-Ural Botanical garden-institute of the UFRC RAS (Bashkir Cis-Urals, northern forest-steppe). The study of the seasonal rhythm of growth and development was carried out according to the method of phenological observations by I. N. Beideman and I. V. Borisova. Determination of winter hardiness and resistance to adverse weather conditions, pests and diseases, reproduction coefficient and seed productivity was carried out according to generally accepted recommendations. Results. According to the phenorhythmotype, the studied species are short-growing, spring-early-summer flowering. A. ursinum – ephemeroid, A. microdictyon, A. ochotense and A. victorialis – hemi-ephemeroid. The flowering phase occurs in late May-early June. The duration of flowering of wild ramson samples by year is 13-22 days. Seed maturation occurs in July. A. ursinum vegetation ends in July, the remaining samples-in August. The largest number of fruits and seeds are allocated samples of A. victorialis and A. microdictyon, the smallest – A. ursinum. Samples of A. microdictyon, A. ursinum and A. victorialis have a high percentage of fruit blooming. The weight of 1000 seeds of A. microdictyon is 3.6 g, A. ursinum – 5.9 g, A. victorialis – 6.3–6.7 g, A. ochotense – 7.9–8.5 g. Wild ramson seeds when sown in the open ground do not germinate in the same year: autumn sowing sprouts in 17–18 months, spring – in a year. To accelerate germination, it is recommended to stratify seeds for 2.5–3 months at a temperature of 0–3 °C. Scientific novelty. Research work on the study of wild ramson onions in the region of the Bashkir Cis-Urals has not yet been carried out. These species of onions have a wide resource value, which was caused by the high relevance of these studies.

Creating a collection of the sea buckthorn (Hippophae rhamnoides L.) gene pool

2020 ◽  
pp. 65-76
Author(s):  
V.V. Moskalets ◽  
T.Z. Moskalets ◽  
I.V. Grynyk ◽  
O.B. Ovezmyradova ◽  
O.M. Nevmerzhytska
Keyword(s):  
Genetic Resources ◽  
Gene Pool ◽  
Plant Genetic Resources ◽  
Sea Buckthorn ◽  
Forest Steppe ◽  
Expert Evaluation ◽  
Northern Forest ◽  
Hippophaë Rhamnoides ◽  
Morphobiological Characteristics ◽  
Genetic Profiles

Аim. To create a working collection of the sea buckthorn gene pool for priority breeding trends. Results and Discussion. Scientific and practical results of building up and studying the working collection of the buckthorn gene pool of the Institute of Horticulture of NAAS are presented. Aspects of formation of a working collection and their comparative identification by genetic profiles are analyzed. Morphobiological characteristics and economically valuable features of sea buckthorn plants are summarized. Conclusions. Targeted introduction and studies of the adaptive and productive potentials of sea buckthorn in the experimental fields of the Institute of Horticulture (northern forest-steppe of Ukraine) in 2017-2019 allowed us to transfer the most promising genotypes to the National Center for Plant Genetic Resources of Ukraine (NCPGRU) of the Рlant Production Institute named after VYa Yuriev of NAAS of Ukraine, where, after expert evaluation, they were assigned catalog numbers and included in a list of plants of the genetic bank of Ukraine: F 1-15-1 or Nosivchanka (UA3700073), F 1-15-8S or Mitsna (UA3700079), male form 1-15 -6Ch or Aboryhеn 6/11 (UA3700080), F 1-15-9 or Karotynna (UA3700082), F 1-15-3 or Pamiatka (UA3700076), F 1-15-8V or Soniachne Siayvo (UA3700075), 1-15-11 or Lymonna (UA3700072), F 2-15-73 or Morkviana (UA3700077), F 1-15-5 or Adaptyvna (UA3700078), F 1-15-8B or Osoblyva (UA3700083), F 1-15-6 or Apelsynova (UA3700084), F 6А/11 (UA3700081), and F 1-15-5а or Sribnolysta 5a (UA3700074).

scholarly journals CROWN ENTOMOFAUNA OF THE AMELANCHIER ALNIFOLIA (NUTT.) IN THE NORTHERN FOREST-STEPPE OF THE OB REGION

2020 ◽  
Author(s):  
T.V. Kuzmina ◽  
◽  
E.Yu. Toropova ◽  
Keyword(s):  
Biological Diversity ◽  
Weather Conditions ◽  
Forest Steppe ◽  
Northern Forest ◽  
Amelanchier Alnifolia ◽  
Fauna Composition ◽  
Diversity Study

The results of the entomological fauna biological diversity study at the Saskatoon berries Amelanchier alnifolia (Nutt.) crown in the Ob region Northern forest-steppe are presented. The entomological fauna composition of the Saskatoon berries crown was represented by more than 22 families from 7 orders. The insect number and biological diversity depended on the timing and duration of Amelanchier alnifolia bloom, which was determined by the weather conditions in the May.

scholarly journals Comparative evaluation of pea selection lines of different morphotypes

2019 ◽  
Vol 49 (5) ◽  
pp. 28-35
Author(s):  
K. S. Temirov
Keyword(s):  
Weather Conditions ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Lodging Resistance ◽  
Northern Forest ◽  
Breeding Lines ◽  
Temperature And Precipitation ◽  
Economically Valuable Traits ◽  
Number Of Seeds

The results of a comparative study of samples of the garden pea (Pisum sativum L.) by the main economically valuable traits are presented. The objects of the research were 13 breeding lines of peas of various morphotypes (leafy, semi-leafl ess, chameleon). The experiment was conducted in 2016–2018 on leached chernozems in the northern forest-steppe of Western Siberia. The study period was characterized by contrasting weather conditions. Uneven precipitation was noted in 2016, which was higher than the norm in May, but below normal in June. In May 2017, the temperature and precipitation corresponded to the long-term average norm. Abundant rainfall from the period of sowing (the fi rst ten-day period of May) to full ripeness (July) and low average daily air temperature in May characterized the vegetation period of 2018. The best results in short-stalk characteristics and lodging resistance were reached by the line of the semi-leafl ess morphotype Nord × Az-318 (57.5 cm) and Orel × Yamal (57.7 cm). An average positive correlation was established between the height of the plant and the number of pods (r = 0.48 ± 0.20). By the mass of 1000 seeds the best results were shown by leafy lines (188.4 g) and the chameleon morphotype (181.1 g). Between the mass of 1000 seeds and the number of seeds in a pod, an average negative correlation was established (r = –0.63 ± 0.25). In terms of the yield, the chameleon morphotype lines (TM-1552, TM-1504) proved the most productive. The average yield of this morphotype was 280.0 g/m2, leafy lines – 271.4 g/m2 and the lines of the semi-leafl ess morphotype – 254.1 g/m2. A correlation was established between the yield and the studied traits. The yield is moderately positively affected by the number of seeds in a pod (r = 0.55 ± 0.20) and the number of pods in a plant (r = 0.50 ± 0.22). A signifi cant yield advantage was not found between the studied breeding lines. For sustainable production of pea seeds, it is advisable to have a system of varieties of different morphotypes.

Irrigation regime and water consumption of potatoes in the Republic of Bashkortostan, depending on the reclamation condition of lands

2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Growing Season ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Total Water ◽  
Total Water Consumption ◽  
Republic Of Bashkortostan ◽  
Irrigated Lands ◽  
The Republic

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.

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