Toshik Iarley da Silva

Toshik Iarley da Silva
Universidade Federal de Viçosa (UFV) | UFV · Department of Agronomy

DSc in Plant Sciences

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97
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158
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Publications

Publications (97)
Article
Drought stress is one of the main causes of low crop productivity due to disturbances in plant growth, physiology and biochemical processes. Spermine application is an alternative to mitigate the harmful effects of this stress on plants. Nasturtium (Tropaeolum majus L.) is an ornamental, medicinal and edible plant cultivated and consumed in several...
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This study evaluate the effect of drought and heat stress on the quality of C. spectabilis seeds. A completely randomized design in a 4×4 factorial scheme, referring to four osmotic potentials based on Polyethylene glycol (PEG 6000 = 0.0,-0.2,-0.4 and-0.8 MPa) and four temperatures (25, 30 and 35 ºC constant and alternating between 25-35 ºC), with...
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Sugar beet (Beta vulgaris L.) is one of the most cultivated vegetables in Brazil, where water limitation is the main cause of yield loss. This limitation can be attenuated with the application of organic solutes, such as ascorbic acid (AA). The objective was to evaluate the response of sugar beet plants under the application of AA via irrigation wa...
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The calla lily ornamental plant (Zantedeschia aethiopica) is grown and marketed in many countries. Studies on daily variation in photosynthesis are critical for understanding how a plant behaves in its growing environment. The objective of this study was to evaluate the daily photosynthetic course of calla lily plants grown in pots in a greenhouse...
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Calendula officinalis L. is widely used in flowerbeds composition and cultivated as cut flowers. However, this species' plant height (30-60 cm) makes a stable disposition over tables a challenge, consequently impairing its sales as a potted plant. Paclobutrazol (PBZ) is a vegetal regulator that reduces the growth of plants. This study aimed to eval...
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Basil (Ocimum basilicum) is a medicinal, ornamental and aromatic plant, however, its size can be an obstacle to its commercialization as a potted ornamental plant. Paclobutrazol (PBZ) is a substance that can retard plant growth by inhibiting the synthesis of gibberellins. The objective of this work was to evaluate the effect of paclobutrazol on gro...
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Congea tomentosa is a climbing plant suitable for covering arbors, railings, and fences. Leaf area determination is useful in understanding the plant-environment relationship and facilitating agronomic studies on transpiration, water requirement, light interception, and photosynthetic activity. The objective of this study was to obtain an allometri...
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RESUMO: O manjericão é uma espécie de elevado potencial de exploração. No entanto, sua produção em regiões semiáridas é comprometida decorrentes dos sais contidos no solo e na água utilizada na irrigação, sendo necessário a adoção de técnicas que aumente a tolerância das plantas a salinidade, como a fertilização com nitrogênio. Assim, objetivou-se...
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The salinity of irrigation water and soil create considerable challenges in agriculture, as they harm the physiological processes and growth of plants. The exogenous application of antioxidant compounds, such as salicylic acid, can reduce the damage caused by salt stress. Thus, this study aimed to evaluate the attenuation of salt stress induced by...
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Basil (Ocimum basilicum L.) is an aromatic and spice plant used around the world in cooking, pharmaceutical, cosmetic and flavoring industries. Salicylic acid has been used to mitigate the deleterious effects of salinity on plants. This work aimed to evaluate the growth of basil under saline stress and salicylic acid. A randomized block design was...
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The salinity of the soil and irrigation water is one of the great challenges of agriculture. Salinity can have harmful effects on physiological processes and plant growth, including Tropaeolum majus L. (Tropaeolaceae). The application of phytohormones can be a strategy to mitigate these effects. The aim of this study was to evaluate the application...
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Mesosphaerum suaveolens (L.) Kuntze is a species widely used in folk medicine and has a high aromatic and therapeutic potential. However, its cultivation in semi-arid regions can be limited by salts in the irrigation water. The objective of this study was to evaluate the effect of salicylic acid (SA) as a mitigator of saline stress on the growth an...
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Sky vine (Thunbergia grandiflora Roxb) is a vine with important structural components for forest environments. Studies on growth and development are necessary, because of the environmental and economic importance. The leaf area determination is essential for ecophysiological studies to understand the relationship of the plant with the environment....
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Root-knot nematodes are the main soil-dwelling phytopathogens that cause severe damages to plants, especially tomato plants. Exogenous application of salicylic acid (SA) can mitigate such pathogenicity. This work aimed to evaluate the growth of tomato plants submitted to Meloidogyne javanica population densities (PD) and application of SA. The expe...
Article
Flowers, leaves, fruits and buds of Tropaeolum majus are used for ornamental, medicinal and food purposes. However, salt stress limits the development and productivity of T. majus due to biochemical, physiological and anatomical disturbances. Polyamine application is an alternative for mitigating the harmful effects of salt stress. Thus, the object...
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Abiotic stresses are one of the major reasons for low crop productivity owing to the disturbances caused by them. Polyamines can be applied to mitigate the harmful effects of stress in plants. Nasturtium (Tropaeolum majus L.) is an ornamental, medicinal, and edible plant that is found in many countries. The objective of this work was to evaluate th...
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p>A alta demanda por matéria prima de manjericão ( Ocimum basilicum L.) justifica o investimento em pesquisa na busca de incrementar a produtividade e qualidade do óleo essencial e biomassa. Este estudo objetivou avaliar desenvolvimento e teor de óleo essencial da cultivar de manjericão Cinnamom submetida a diferentes concentrações de ácido cítrico...
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The use of substances attenuating the harmful effects of salts on plants is an important strategy for the use of salt water in agriculture. The objective of this work was to evaluate the growth, gas exchange and biomass accumulation of passion fruit seedlings (Passiflora edulis Sims) irrigated with salt water due to the application of salt stress a...
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The use of saline water dramatically reduces the growth and development of plants. Thus, salt stress mitigation can be important to allow the use of this water in the agriculture. This study aimed to evaluate the effect of silicon as attenuators of effects caused by salt stress on seedlings of “Espada” mango tree variety. An experiment was conducte...
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Salinity is one of the problems that limit plant development, with the germination, growth, and initial establishment stages being the most sensitive to saline stress. Erythrina velutina, popularly known as “mulungu” in Brazil, is a species native to the Caatinga biome, which grows in conditions of soil rich in salts. The damage caused by salinity...
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Salinidade da água e ácido salicílico no crescimento de plantas de tomate Salinidad del agua y ácido salicílico en el crecimiento de las plantas de tomate Abstract The tomato is one of the most important vegetables in Brazilian market. The production of this vegetable can be limited by the excess of salts in the water used for irrigation. The use o...
Article
Basil is a medicinal and spice plant widely used in the Northeast region of Brazil. However, its production can be affected by the soil salinity and water used for irrigation. For the development of plants in saline conditions to occur, it is necessary that their nutritional status is adequate. Thus, the objective was to evaluate the effect of nitr...
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The water in semiarid regions contains salts in excess. When good quality water is not available it is necessary to use strategies that can make feasible the use of saline water. The aim of this study was to evaluate the effects of the application of the plant growth regulator on the culture of basil stressed with salt. The experiment was carried o...
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Aedes aegypti L. is the mosquito vector of yellow fever, dengue, zika, and chikungunya viruses. The prevention and control of such diseases usually rely on the use of chemicals, that can cause harm to human health and the environment. Vegetable oils with larvicidal activity are used as an alternative tool to control this insect. This study aimed to...
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Salinity is one of the main plant abiotic stresses which affects the establishment and development crops. Hence, the search for technologies that minimize the damage caused by salinity is essential. The aim of the present work was to evaluate the effect of salinity stress and osmotic conditioning of seeds on the biomass, gas exchanges and chlorophy...
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The aim of this work was to evaluate the larvicidal effect of aqueous extracts of Prosopis juliflora on A. aegypti. Oviposition traps (ovitramps) were used to obtain the insect's eggs. The test was carried out at the Agricultural Entomology Laboratory of the Federal University of Cariri, Crato, Ceará, Brazil, with controlled temperature, humidity a...
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Platycodon grandiflorus is an ornamental species that can be marketed as a potted flower; however, it has fragile and bending floral stems. Plant growth regulators, such as paclobutrazol, are compounds that reduce stem elongation, enabling the production of plants with a more compact formation. This study aimed to evaluate the effects of paclobutra...
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Nematodes of the genus Meloidogyne spp. are one of the tomato culture's main pathogens. According to their soil infestation level, physiological changes may occur. Consequently, it is extremely important to employ given products to minimize their effect. A feasible option is the salicylic acid, a phytohormone that can induce into resistance due to...
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RESUMO: A alfazema é uma espécie medicinal amplamente utilizada na medicina popular, especialmente na região Nordeste do Brasil. Contudo, seu crescimento pode ser limitado pelo excesso de sais na água utilizada na irrigação, sendo necessária a busca por alternativas que minimizem os efeitos. Assim, objetivou-se avaliar o condicionamento osmótico da...
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Bell pepper (Capsicum annuum) is one of the most consumed vegetables around the world. Balanced fertilization is essential for growing this vegetable. The objective of this study was to evaluate the yield and morphological attributes of bell pepper under doses and times of application of biological fertilizers. Two experiments were carried out with...
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Biological fertilizers promote several benefits to the soil, and one of the ways to evaluate their quality is to determine the edaphic respiration. The present study aimed to evaluate edaphic respiration in bell pepper cultivation under doses and times of application of biological fertilizers. Two experiments were performed with applications of bio...
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Muitas plantas medicinais mostram atividade alelopática porque os mesmos constituintes químicos responsáveis pelas atividades medicinais exercem influência positiva ou negativa no crescimento de outras plantas. Foi investigado esse potencial para o eucalipto (Eucalyptus globulus Labill.) e a moringa (Moringa oleifera Lam.). O presente estudo teve c...
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RESUMO A melancia é uma olerícola relevante para o Brasil, inclusive para a região Nordeste. No entanto, a sua produção é afetada pelo excesso de sais na água de irrigação dessa região. O ácido salicílico é uma substância que vem sendo utilizada como mitigadora dos efeitos desse estresse sobre as plantas. Assim, objetivou-se avaliar o tratamento de...
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Mesosphaerum suaveolens (L.) Kuntze is a species of high phytotherapeutic and aromatic potential and quite widespread in Northeastern Brazil. However, the scarcity of good quality water and the high content of salts contained in the soil and irrigation water of the semi-arid region can compromise the crop growth and yield. Therefore, this study aim...
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O uso de redes fotosseletivas foi iniciado a partir da década de 90 e são usadas como barreiras físicas que filtram a radiação solar. As plantas apresentam respostas fisiológicas e morfológicas diferentes com base na cor da rede fotosseletiva. O objetivo desta revisão bibliográfica é analisar as principais pesquisas do uso de redes fotosseletivas n...
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A melancia é uma olerícola relevante para o Brasil, inclusive para a região Nordeste. No entanto, a sua produção é afetada pelo excesso de sais na água de irrigação dessa região. O ácido salicílico é uma substância que vem sendo utilizada como mitigadora dos efeitos desses estresses sobre as plantas. Assim, objetivou-se avaliar o tratamento de seme...
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Effects of irrigation water salinity and salicylic acid on germination and vigor of Mesosphaerum suaveolens (L.) Kuntze Efeitos da salinidade da água de irrigação e do ácido salicílico na germinação e no vigor de Mesosphaerum suaveolens (L.) Kuntze Highlights: Salicylic acid attenuates salinity effects on the initial growth of M. suaveolens. Seed q...
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In the northeast semiarid region water with high salt content is very common, which may negatively affect crops growth and development. Thus using possible salt stress attenuators is extremely important because it allows the use of saline waters for agricultural purposes. Among the possible attenuators of salt stress, humic substances stand out. Th...
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Cerrado is a biome that holds many phytophysiognomies, influenced by the edaphic factors, where the type of substrate is strongly related to the established vegetation. This study aims to verify on how soil physicochemical properties, as well as the presence of rocky outcrops, influence the species distribution of woody plants in a Cerrado fragment...
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Mesosphaerum suaveolens (L.) is a species with high aromatic and therapeutic potential, widespread in the Northeast of Brazil. However, the conditions of the northeastern semiarid and the high content of salts contained in the soil and water used for irrigation may compromise plant development. Thus, the objective of this study was to evaluate the...
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Zucchini (Cucurbita pepo L.) has a great economic and productive potential in the semi-arid region of Brazil, due to the wide acceptance by consumers and quick financial return. The nitrate (NO3-) assimilation process in C3 plants such as zucchini is related to photorespiration, and Si accumulated near the stomata reduces the transpiration rate, ma...
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Although not considered an essential element, silicon can be used to increase crop productivity, especially under stress conditions. In this sense, the objective was to evaluate the gas exchange of beet plants irrigated with saline water depending on the application of silicon. The experiment was conducted in a randomized block design, in a 5 x 5 f...
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Full-text available
The salinity of irrigation water is one of modern agriculture's major obstacles, as it can damage the plants metabolism and, consequently, its development. Currently there is a great demand for substances that may mitigate such effects, such as salicylic acid. Thus, this study aimed to evaluate the effects of salicylic acid application on watermelo...
Article
Full-text available
The salinity of irrigation water is one of modern agriculture's major obstacles, as it can damage the plants metabolism and, consequently, its development. Currently there is a great demand for substances that may mitigate such effects, such as salicylic acid. Thus, this study aimed to evaluate the effects of salicylic acid application on watermelo...
Chapter
A alfazema brava (Hyptis suaveolens L.) é umas das espécies medicinais mais utilizadas, em especial, nas pequenas comunidades da região semiárida do Nordeste brasileiro. Dentre os fatores que podem limitar seu crescimento e desenvolvimento está à salinidade, com isso, torna-se importante a busca por produtos que atenue tais efeitos. Assim, objetivo...
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Full-text available
Salinity is one of the modern agriculture major obstacles, causing several physiological disturbances in plants, adversely affecting its growth and development. Therefore, some techniques are required in order to alleviate the negative effects of salinity stress on plants, as for example an adequate nitrogen fertilization. The aim of this study was...
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Full-text available
1 RESUMO O mulungu (Erythrina velutina Willd.) é uma espécie florestal nativa da região Nordeste do Brasil, sendo utilizada para fins econômicos e medicinal. No entanto, o seu desempenho fisiológico pode ser comprometido por diversos fatores bióticos e abióticos, dentre estes, o estresse salino. Nesse sentido, a aplicação do ácido salicílico, fitoh...
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Beetroot (Beta vulgaris L.) is a culture of great demand in Brazil due to its high nutritional value. However, water availability is a determining factor on its production. An alternative to reduce the damage caused by water stress is to apply organic solutes, such as ascorbic acid. The purpose hereof was to evaluate the postharvest quality of beet...
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Erythrina velutina é uma espécie endêmica da região Nordeste do Brasil, conhecida por exibir propriedades farmacológicas e potencial madeireiro. Entretanto, seu crescimento pode ser comprometido por fatores abióticos como escassez hídrica e excesso de sais. A utilização de reguladores de crescimento como o ácido salicílico está entre os métodos usa...
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In recent years, the use of saline water in agriculture has become an alternative mainly because of water scarcity. However, plants do not tolerate high salt contents; so, the use of salt stress attenuators could enable saline water usage in agriculture. This study aimed to assess the effect of saline water and silicon applications on growth, chlor...
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Full-text available
Basil (Ocimum basilicum L.) is one of the world's most widely cultivated medicinal herbs, but its physiological processes are affected by salinity. Therefore, mitigation strategies against the harmful effects of salt on plants have been increasingly on demand, including the use of salicylic acid. Thus, the effect of salicylic acid on the ecophysiol...
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Full-text available
Although several studies about intercropping green manures with vegetable crops have already been carried out, there are few studies in which the economic analysis was performed. The aim of the present study was to evaluate the economic profitability of the taro and Crotalaria juncea consortium, as well as broccoli, green maize and snow pea grown i...
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Zucchini (Cucurbita pepo L.) is a horticultural crop of great socioeconomic importance in Brazil and in the world. However, inappropriate fertilization management, such as over-fertilization of soils, may become a limiting factor for its development. Thus, the aim of this study was to evaluate the morpho-physiological behavior of zucchini submitted...
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The insecticides properties of Moringa oleifera (moringa) were evaluated in Aedes aegypti larvae, throughout an entirely randomized trial, represented by ethanolic and aqueous extracts obtained from leaves, flowers, barks, seeds and moringa roots, besides the control group. Five batches of 10 in 3rd stadium larvae were distributed in distilled wate...
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The Araripe Plateau attracts an intense anthropic activity that results in the degradation and risk of extinction of native medicinal species such as Vanillosmopsis arborea Baker (candeeiro). The objective of this work was to test the main propagation methods of this species and to evaluate the survival of the seedlings in different environments. W...