Efficiency of post-emergence (“insurance”) herbicides in soybean crops of the Northern Steppe of Ukraine

Tkalich, Yu. I.; Tsyliuryk, O. I.; Rudakov, Yu. М.; Козечко, В. І.

doi:10.32819/021019

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…However, disturbance is also known to increase the invasibility of communities. Disturbance therefore poses an important problem for conservation management (Hobbs & Huenneke, 1992;Tkalich et al, 2021;Yorkina et al, 2021). Our study confirmed that up to 90% of the mapped sites represent significantly disturbed habitats with a high degree of anthropogenic influence.…”

Section: Discussionsupporting

confidence: 77%

Geographical distribution and spatio-temporal changes in the occurrence of invasive plant species in Slovak Republic

et al. 2022

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Biological systems are subject to a dramatic increase in invading species in the 21st century due to increasing globalization around the world. In the near future, these species will cause more extensive ecological as well as socio-economic damage. Biotic invasions will result not only in a reduction of the original biodiversity, but also total loss, particularly degradation of natural habitats – especially Natura 2000 habitats. This study aims to understand the processes of spread of invasive plant species, their way of life, adaptation to environmental changes and displacement of native species. Without the local level, it is not possible to understand these processes on the regional and continental dimensions and thus implement scientific facts and findings into the prediction of the development of global biosystems. The research was conducted during the vegetation period in the years 2017–2021 in the studied areas of non-forest and forest habitats in the central part of Slovakia. We recorded 242 localities in the area with the occurrence of invasive plant species in an area of 3.057 km2 out of the total mapped area of 169.024 km2. We recorded the highest number of localities and the most expansive distribution for the species Stenactis annua, Robinia pseudoacacia, Solidago canadensis, Impatiens glandulifera and Fallopia japonica.

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Section: Discussionsupporting

confidence: 77%

Geographical distribution and spatio-temporal changes in the occurrence of invasive plant species in Slovak Republic

et al. 2022

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“…Endogenous phytohormones take part in the management of physiological and biochemical processes at different levels of organization of the plant organism, the regulation of morphogenesis and plant production process. Changes in the rate of growth processes under the action of exogenous growth regulators and their synthetic analogues and modifiers, in particular gibberellin-like compounds and their inhibitors, are due to changes in the balance of endogenous phytohormones (Rademacher, 2016;Khalloufi et al, 2017;Song et al, 2019;Tkalich et al, 2021;Tsyliuryk et al, 2021). Therefore, the effect of gibberellins and anti-gibberellin preparations on the growth, development and productivity of cultivated plants requires further study (Jabir et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Morphogenesis, pigment content, phytohormones and yield of tomatoes under the action of gibberellin and tebuconazole

Rogach

Kuryata²,

Kosakivska³

et al. 2022

Biosys. divers.

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One of the main tasks of contemporary plant physiology is regulation of growth and development of cultivated plants in order to optimize the productive process. The scientific community focuses its attention on the use of natural activators and growth inhibitors. We investigated the effect of foliar treatment with 0.005% solution of gibberellic acid and 0.025% solution of the anti-gibberellic preparation tebuconazole on morphogenesis, leaf mesostructure, content of photosynthetic pigments, balance of endogenous phytobrybrides and lymphocyte B and productivity of tomatoes. The vegetation experiment was carried out in the conditions of soil-sand culture in vessels with a 10-liter volume. The treatment was carried out in the budding phase. Morphometric parameters were measured every 10 days. The mesostructure of the middle tier leaves was studied in the fruit formation phase, and the chlorophyll content was determined in the raw material by spectrophotometric method. Analytical determination of endogenous phytohormones – indolyl-3-acetic (IAA), gibberellic acid and abscisic (ABA) acids and cytokinins – zeatin (Z), zeatin-O-glucoside (ZG), zeatinribozide (Znila) and isopentenyladenosine (iPA) was performed by high performance liquid chromatography – mass spectrometry (HPLC-MS). With gibberellic acid treatment plant height increased significantly, while with tebuconazole it decreased. Gibberellic acid increased the number of leaves per plant, and tebuconazole did not change it. The preparations increased the number of leaf blades per leaf, the total number of leaf blades per plant, the weight of the raw material of leaves, the area of leaf blades and the area of the leaves at the end of the study period. The dry matter weight of stems and roots under the action of gibberellic acid increased, and during the treatment of tebuconazole decreased. Gibberellic acid increased the dry matter of the whole plant, and tebuconazole did not change it. Under the action of tebuconazole the content of chlorophyll in the leaves increased, while under the action of gibberellic acid it decreased. Both regulators increased the volume of columnar parenchyma cells. Gibberellic acid increased the size of spongy parenchyma cells, while tebuconazole did not change them. It is revealed that the action of exogenous gibberellic acid in stems and leaves increased the content of endogenous IAA and gibberellic acid, and tebuconazole decreased their content. The ABA content in stems and leaves increased with tebuconazole treatments and decreased with exogenous gibberellic acid. The total cytokinin content in the leaves was higher than in the stems in both the control and the experiment samples. Growth regulators induced an increase in the cytokinin pool in leaves and a decrease in stems. Gibberellic acid increased the content of all five forms of cytokinins in the leaves, and tebuconazole increased only two isoforms. In the stems under the action of both growth regulators the content of Z decreased and iP increased. The content of ZR and iPA in stems increased after the application of the retardant and decreased under the action of growth stimulant. The ZG content exceeded the control after gibberellic acid treatment and was in trace concentrations under the action of tebuconazole. Growth regulators optimized the productivity of tomato plants: under the action of gibberellic acid there was a considerable increase in the number of fruits per plant, and after the use of tebuconazole the average weight of one fruit significantly increased. The obtained results demonstrated that anatomical-morphological and structural-functional rearrangements in tomato plants under the action of exogenous gibberellic acid and tebuconazole occurred against the background of changes in the balance and distribution of endogenous hormones. Increased photosynthetic activity, stimulation of growth processes of some plant organs and inhibition of others increased the biological crop capacity.

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“…Everything aforesaid has led to most formely common species of plants and animals becoming rare or endangered and now included in the Red Book of Ukraine and the Red Book of Dnipropetrovsk Region. The greatest threat for the biodiversity in the Region is posed by destruction of certain types of landscapes (virgin steppe areas, bairak forests, meadow ecosystems); invasion of the natural ecosystems by alien and genetically-modified organisms; urbanization, uncontrolled use of land resources; industrial impact (mining fossil fuels, impact of energetics, transport, and other kinds of industrial activity); agricultural impact (plant agriculture, livestock farming); impact of forestry and hunting; impact of water economics (Kunakh et al, 2020;Fedyushko & Babchenko, 2021;Tkalich et al, 2021;Yorkina et al, 2021).…”

Section: Ecological Situation In Dnipropetrovsk Regionmentioning

confidence: 99%

Rare species of Carabidae and Cicindelidae in Dnipropetrovsk Region, Ukraine

Putchkov

Brygadyrenko²

2022

Biosys. divers.

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Dnipropetrovsk Region is situated in the steppe zone of Ukraine, in conditions of insufficient moisture. Forest vegetation covers only 5.1% of the region. Over 80% of the region’s area is used for agricultural purposes. A total of 281 species of ground beetles is known for the region, of which this article gives the data on biology and distribution of 82 species that need protection: Cephalota atrata, C. besseri, C. elegans, Cicindela maritima, C. soluta, Cylindera arenaria, Leistus terminatus, Notiophilus rufipes, Calosoma sycophanta, C. denticolle, C. investigator, Carabus stscheglowi, C. clathratus, C. excellens, C. hungaricus, C. besseri, C. estreicheri, C. sibiricus, Blethisa multipunctata, Elaphrus uliginosus, Scarites terricola, Dyschirius chalceus, Dyschirius obscurus, Blemus discus, Epaphius secalis, Bembidion ephippium, B. aspericolle, Pogonus cumanus, Pogonistes convexicollis, Patrobus atrorufus, Stomis pumicatus, Pedius inquinatus, Pterostichus chamaeleon, P. elongatus, P. macer, P. melas, Taphoxenus gigas, Laemostenus terricola, Agonum impressum, A. marginatum, A. monachum, A. sexpunctatum, A. viridicupreum, Olisthopus sturmii, Synuchus vivalis, Amara chaudoiri, A. crenata, A. equestris, A. fulva, A. sabulosa, Curtonotus convexiusсulus, Anisodastylus poeciloides, Diachromus germanus, Acupalpus interstitialis, A. suturalis, Stenolophus discophorus, Daptus vittatus, Harpalus cephalotes, H. dispar, H. hirtipes, Н. laeviceps, H. luteicornis, H. melancholicus, H. steveni, H. subcylindricus, Microderes brachypus, Ophonus diffinis, Dixus eremita, Panagaeus bipustulatus, Callistus lunatus, Dinodes decipiens, Chlaenius alutaceus, Ch. festivus, Licinus cassideus, Badister dorsiger, Masoreus wetterhalli, Lebia humeralis, Demetrias imperialis, Cymindis axillaris, Polystichus connexus, Brachinus ejaculans, B. hamatus, Mastax thermarum. To formalize the data on each species, the article provides characteristics of its ecological niche: thermal preferendum, hygro-preferendum, biotopical characteristic, biogeohorizon, trophic preferences, practical significance and protection measures. The main factors of decline in diversity of the fauna of ground beetles in Dnipropetrovsk Region are arable farming, chemical treatment of agricultural land, unregulated cattle grazing, recreational loading, large scale construction in floodplain areas.

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Efficiency of post-emergence (“insurance”) herbicides in soybean crops of the Northern Steppe of Ukraine

Cited by 9 publications

References 16 publications

Geographical distribution and spatio-temporal changes in the occurrence of invasive plant species in Slovak Republic

Geographical distribution and spatio-temporal changes in the occurrence of invasive plant species in Slovak Republic

Morphogenesis, pigment content, phytohormones and yield of tomatoes under the action of gibberellin and tebuconazole

Rare species of Carabidae and Cicindelidae in Dnipropetrovsk Region, Ukraine

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