Consulta: subjectFacets:"Boron"
Registros recuperados: 36
Data/hora: 11/06/2024 06:33:54

Fertilización foliar con boro en aguacatero (Persea americana Mill.).
Provedor de dados: Depósito Institucional Abierto de Documentos Digitales del Colegio de Postgraduados (COLPOS DIGITAL )
Autores: González Gervacio, Catalina.
El boro es un micronutrimento que posee un intervalo muy estrecho entre deficiencia y toxicidad, varias de sus funciones dentro las plantas aún no han sido bien identificadas; la función principal a la que se atribuye el boro es estructural en la pared y membrana celular al formar parte del complejo B-RG II. Sin embargo, tiene varias funciones más como es el transporte de azúcares, síntesis de aminoácidos, proteínas y fenoles. La presente investigación se realizó con los objetivos de determinar la ruta de penetración del boro a través de la hoja y conocer los efectos que aplicaciones foliares de este elemento tienen sobre el contenido de boro total, concentraciones de carbohidratos y aminoácidos en hoja y sobre el grosor de la pared celular en brotes de...
Palavras-chave: Persea americana Mill.; Boro; Rutas de penetración; Carbohidratos; Aminoácidos; Pared celular; Boron; Routes of penetration; Carbohydrates; Amino acids; Cell wall; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/449

Fertilización foliar con boro en aguacatero (Persea americana Mill.).
Provedor de dados: Depósito Institucional Abierto de Documentos Digitales del Colegio de Postgraduados (COLPOS DIGITAL )
Autores: González Gervacio, Catalina.
El boro es un micronutrimento que posee un intervalo muy estrecho entre deficiencia y toxicidad, varias de sus funciones dentro las plantas aún no han sido bien identificadas; la función principal a la que se atribuye el boro es estructural en la pared y membrana celular al formar parte del complejo B-RG II. Sin embargo, tiene varias funciones más como es el transporte de azúcares, síntesis de aminoácidos, proteínas y fenoles. La presente investigación se realizó con los objetivos de determinar la ruta de penetración del boro a través de la hoja y conocer los efectos que aplicaciones foliares de este elemento tienen sobre el contenido de boro total, concentraciones de carbohidratos y aminoácidos en hoja y sobre el grosor de la pared celular en brotes de...
Palavras-chave: Persea americana Mill.; Boro; Rutas de penetración; Carbohidratos; Aminoácidos; Pared celular; Boron; Routes of penetration; Carbohydrates; Amino acids; Cell wall; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/449

Selection of Arthrospira platensis strains with productivity in brackish water with high boron levels for commercial production in the Lluta Valley
Provedor de dados: Electronic Journal of Biotechnology
Autores: Oxa,Patricio; Bastías,Elizabeth; Uribe,Eduardo.
Adaptation and selection of Arthrospira platensis strains, for cultivation in brackish water with excess boron (B) in the Lluta Valley can become an interesting alternative that would allow to extend these cultures to areas that possess the environmental conditions, but that lack the fresh water needed to do it. Strains TX98 and P88 were evaluated in laboratory conditions with three different media of brackish water and with the white medium, the Zarrouk modified medium (MZM). The growing media with brackish water with a B concentration present in the Lluta River of 20 mgL-1 (B20) and medium with 30 mgL-1 (B30), and 10 mg L-1 of B (B10). The effect of the different media on the growing parameters with a culture temperature of 25 ± 1ºC in the three...
Tipo: Journal article
Palavras-chave: Brackish water; Boron; Growth medium; Microalgae; Spirulina (Arthrospira).
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000500019

Boron transport in Eucalyptus. 2. Identification in silico of a putative boron transporter for xylem loading in eucalypt
Provedor de dados: Genetics and Molecular Biology
Autores: Domingues,Douglas Silva; Leite,Susi Meire Maximino; Farro,Ana Paula Cazerta; Coscrato,Virgínia Elias; Mori,Edson Seizo; Furtado,Edson Luiz; Wilcken,Carlos Frederico; Velini,Edivaldo Domingues; Guerrini,Iraë Amaral; Maia,Ivan Godoy; Marino,Celso Luis.
Boron (B) is a low mobility plant micronutrient whose molecular mechanisms of absorption and translocation are still controversial. Many factors are involved in tolerance to Boron excess or deficiency. Recently, the first protein linked to boron transport in biological systems, BOR1, was characterized in Arabidopsis thaliana. This protein is involved in boron xylem loading and is similar to bicarbonate transporters found in animals. There are indications that BOR1 is a member of a conserved protein family in plants. In this work, FORESTS database was used to identify sequences similar to this protein family, looking for a probable BOR1 homolog in eucalypt. We found five consensus sequences similar to BOR1; three of them were then used in multiple alignment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eucalyptus; Boron; Xylem loading; Expressed Sequence Tag (EST); BOR1.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000400017

Carência de macronutrientes e de boro em plantas de juta (Corchorus capsularis L.), variedade roxa.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: VIEGAS, I. de J. M.; HAAG, H. P.; SILVA, J. F. da; MONTEIRO, F. A.
bitstream/item/32693/1/CPATU-BP138.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Macronutriente; Fertilizer; Deficiency; Macronutrient; Potasium; Sulphur.; Adubação; Boro; Cálcio; Deficiência; Enxofre; Fósforo; Juta; Magnésio; Nitrogênio; Potássio.; Boron; Calcium; Jute; Magnesium; Nitrogen; Phosphorus.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380546

O Cultivo do mamão.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SANCHES, N. F.; DANTAS, J. L. L.
Para o cultivo do mamoeiro e recomendado um conjunto de técnicas que viabiliza a exploração comercial desta cultura, contendo informações sobre programação e plantio, adubação, tratos culturais, controle de pragas e doenças, métodos de colheita e pós-colheita, formas de utilização, bem como os coeficientes técnicos e custo de produção para implantação da cultura.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Carica papaya L; Cultivo; Variedades; Sunrise Solo; Fomosa; Condições edafoclimáticas; Mudas; Sementes; Plantas daninhas; Desbate; Desbrota; Culturas intercalares; Pragas; Doencas; Frigoconservacao; Ultilizacao; Papaya; Cultivation; Sunrise; Formosa; Leal analysis; Edaphic and climatic; Conditions; Spacing; Thinning; Diseases; Preservation; Ultilization.; Calagem; Boro; Análise Foliar; Comercialização; Espaçamento; Mamão; Solo.; Boron; Marketing; Intercropping; Liming; Pests; Production costs; Seedlings; Seeds; Sprouting; Varieties; Weeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/642741

Girassol: nutricao mineral e adubacao.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SFREDO, G. J.; CAMPO, R. J.; SARRUGE, J. R.
Exigencias nutricionais; Efeitos dos nutrientes essenciais; Calagem e adubacao.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Nutricao mineral; Brasil; Sunflower; Fertilization; Sulphur.; Adubação; Calagem; Boro; Cálcio; Cobre; Ferro; Enxofre; Fósforo; Girassol; Magnésio; Manganês; Nitrogênio; Molibdênio; Potássio; Zinco.; Brazil; Boron; Copper; Calcium; Liming; Magnesium; Manganese; Iron; Nutrition; Molybdenum; Nitrogen; Phosphorus; Potassium; Zinc.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445619

Disponibilidade de boro em solos do trópico úmido brasileiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: OLIVEIRA, R. F. de; SINGH, R.; CRUZ, E. de S.
bitstream/item/34428/1/ORIENTAL-BP11.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Teor de boro; Propriedade fisico-quimica do solo; Tropico umido; Brasil; Soil chemicophysical properties.; Solo.; Amazonia; Boron; Soil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377447

Dynamic storage of glacial CO2 in the Atlantic Ocean revealed by boron [CO32-] and pH records
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Chalk, T. B.; Foster, G. L.; Wilson, P. A.
The origin and carbon content of the deep water mass that fills the North Atlantic Basin, either Antarctic Bottom Water (AABW) or North Atlantic Deep Water (NADW) is suggested to influence the partitioning of CO2 between the ocean and atmosphere on glacial-interglacial timescales. Fluctuations in the strength of Atlantic meridional overturning circulation (AMOC) have also been shown to play a key role in global and regional climate change on timescales from annual to millennial. The North Atlantic is an important and well-studied ocean basin but many proxy records tracing ocean circulation in this region over the last glacial cycle are challenging to interpret. Here we present new B/Ca-[CO32-] and boron isotope-pH data from sites spanning the North...
Tipo: Text
Palavras-chave: Boron; Geochemistry; Palaeoceanography; Carbonate system; Glacial; Atlantic.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00496/60812/64631.pdf

Histopathological and Histometrical Assessment of Boron Exposure Effects on Mouse Spermatogenesis
Provedor de dados: International Journal of Morphology
Autores: Bustos-Obregon,E; Carvallo,M; Hartley-Belmar,R; Sarabia,L; Ponce,C.
Boron is a chemical element widely used in many industrial activities. Exposure to it affects many organs in mammals, mainly reproductive male organs. This work evaluates boron effect in testis. For this purpose, 12mg Boron/L of drinking water, equivalent to Arica tap water, was given for 42 days to 85 days old CFl male mice (experimental group). Another group (control group) drunk tap water of Santiago (0.6mg Boron/L) was used. Testicular histopathology and morphometric analysis was done. These studies showed that Borum induces alterations such as epithelial vacuolization, blockage of the tubular lumen and atrophy. Morphometrical data showed that Borom induces also enlargement of tubular diameter, epithelial height and tubular lumen. Therefore, it is...
Tipo: Journal article
Palavras-chave: Boron; Testicular histopathology; Morphometry; Mouse spermatogenesis.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400039

Effects of Supplemental Boron on Intestinal Proliferation and Apoptosis in African Ostrich Chicks
Provedor de dados: International Journal of Morphology
Autores: Sun,PengPeng; Luo,You; Wu,Xin Tong; Ansari,Abdur Rahman; Wang,Jing; Yang,KeLi; Xiao,Ke; Peng,KeMei.
Boron is an essential trace element which plays an important role in process of metabolism and the function of the tissues. However, the effects of boron on the intestinal cells in African ostrich chicks are poorly reported. Therefore, this study was designed to investigate the role of boron on proliferation and apoptosis of the intestinal cells. A total of 36, ten day-old ostrich chicks were randomly divided into six groups and fed on the same basal diet supplemented with 0, 40, 80, 160, 320 and 640 mg/L boric acid in drinking water for 80 days. Proliferatingcell nuclearantigen (PCNA) wasused to test the proliferation indexof intestine in different group byimmunohistochemicalstaining (IHC). Apoptoticcellsofintestinewere detectedbyDutp-biotin nick end...
Tipo: Journal article
Palavras-chave: Apoptosis; Boron; Intestine; Ostrich chicks; Proliferation.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300002

Boron as Testicular Toxicant in Mice (Mus domesticus)
Provedor de dados: International Journal of Morphology
Autores: Bustos-Obregón,Eduardo; Olivares,Christopher.
It has been reported that boron causes changes in various systems, including the male reproductive system. Residents in some towns in northern Chile were consuming a few years ago in the drinking water 20 times more than the amount established as permissible limit by WHO. This study evaluates the effects in an animal model of high intake of boron on the testis. Boron was administered in the drinking water. Twenty male mice (Mus domesticus), sexually mature, were used, divided into 2 groups: the experimental group was given Boron at a dose of 12 mg/L, and the control group 0.6 mg/L, for 42 days. Sections of testis were obtained for: HE staining (Morphometry and Histopathology), Immunohistochemistry (Cox-2), Mallory and Picrosirious stain (evaluation of...
Tipo: Journal article
Palavras-chave: Boron; Mouse; Testicular structure; Collagen I/III; Infertility.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300057

Histological Evaluation of the Effects of Borax Obtained from Various Sources in Different Rat Organs
Provedor de dados: International Journal of Morphology
Autores: Kabu,Mustafa; Tosun,Murat; Elitok,Bülent; Akosman,Murat Sirri.
Boron is an essential element for life and intake via different sources into the body. Because effects of boron and compounds on the body has not been studied enough especially in tissue level, we planned this study to evaluate the effects of borax the most intaken form of boron compound on different intraabdominal organs histologically and also clinically. 42 male rats divided into equal 7 groups and different toxicological doses consistent with its LD50 dose (5000 mg/kg/d) were administered by gavage except control and sham groups. In the study, 2 different kinds of borax one of which was produced for research and the other for agriculture but the same formulation, were used and their effects were also compared. As a result it was found that borax did...
Tipo: Journal article
Palavras-chave: Boron; Borax; Inflammatory bowel disease; Histopathology; Toxicology.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100040

Histopathological Effects of Boron on Mouse Liver
Provedor de dados: International Journal of Morphology
Autores: Bustos-Obregón,Eduardo; Hartley Belmar,Ricardo; Catriao-Gálvez,Roberto.
Boron is a non-metal element, commonly found in Nature as borates in sedimentary rocks, charcoal, oceans and soils. In Chile, it is found in high concentrations in the drinkable water of the XV region, in Arica city, in concentrations that exceed the WHO normative. The present work evaluates the effect of boron at a dose of 12 mg/L of water (equivalent to 0.0686 g of boric acid) given orally for 8,42 and 49 days to 3 experimental groups of 10 mice each. Liver sections were stained with PAS-hematoxyline (to evaluate glycogen), Mallory (to identify collagen fibers) and Picrosirius red with polarizing light to classify collagen fibers. Results indicate that boron evokes diverse effects in liver. Binucleated cells were evaluated and counted and results were...
Tipo: Journal article
Palavras-chave: Boron; Mouse liver; Glycogen Deposition; Collagen quality.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100026

Alteration of the Reproductive Patterns in Drosophila melanogaster by Effects of High Concentrations of Boron on In Vitro Cultured Medium
Provedor de dados: International Journal of Morphology
Autores: Espinoza-Navarro,O; Rodríguez,H; Rodríguez,M; Silva,E; Luque,A.
The objective of this study was to evaluate the effects of boron (B) using as a biological model Drosophila malanogaster. Analizing specifically the responses over descendency to doses of 6,0 and 12 mg/L, comparing a control group which culture medium was prepared with water with boron concentrations of 0,6 mg/L, according to World Health Organization. The results show a significative alteration in the number of descendency from F1 to F3 and then a tendency to normalization in F4 and F5. Also a significant change in proportions between the males and females, with an acute effect on F1 and then a possible chronic effect from F2 to F5, increasing the proportion of females over males. This differences between genders are significant only until F4, on F5 these...
Tipo: Journal article
Palavras-chave: Reproduction; Boron; Reproductive toxicology; Drosophila melanogaster.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300021

High Exposure to Boron in Drinking Water and Sperm Parameters in Chilean Young People
Provedor de dados: International Journal of Morphology
Autores: Cortés,Sandra; Espinoza-Navarro,Omar; Ferreccio,Catterina.
Our aim was to describe sperm parameters in residents from Northern Chile. We evaluated in 101 volunteers (18 and 30 years old) urinary and drinking water Boron levels using Inductively Coupled Plasma Mass Spectrometry; semen parameters were measured with standardized methods. Each individual was categorized in 3 levels of exposure: low (B levels in urine 2.94 mgL-1 or tap water 3.0 mgL-1), medium (urinary B between 2.95-7.4 mgL-1 and B in tap water with 3.0-7.0 mgL-1) and high (urinary B &gt; 7.4 mgL-1 or tap water &gt; 7.0 mgL-1). We found no significant differences among groups by pH, sperm concentration (45.1; 48.2 and 38 million/mL), motility 1th hour (38.1; 40.0 and 45.5 %) and vitality 1th hour (88.6; 88.0 and 76.9 %) respectively. Abnormal...
Tipo: Journal article
Palavras-chave: Boron; Semen; Seminal Parameters; Fertility; Boron exposure; Chile.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100017

ON-FARM IPM OF CHICKPEA IN NEPAL
Provedor de dados: Open Acess Agriculture Research Repository
Autores: Pande, S.
Palavras-chave: Crops; Chickpeas; Integrated pest management; Boron; Pigeonpeas; Grain legumes; Legumes; Fungi; Cropping systems; Lentils.
Ano: 2001
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3709

Effects of micronutrients on growth and yield of pigeonpea
Provedor de dados: Open Acess Agriculture Research Repository
Autores: Malla Reddy,M.
Palavras-chave: Pigeonpeas; Boron; Seed treatment; Inorganic acid salts; Molybdenum; Soil sciences; Genetic soil types; Chickpeas; Grain legumes; Rhizobium.
Ano: 2007
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3336

Effects of boric acid and humate supplementation on performance and egg quality parameters of laying hens
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Hakan,KB; Gultekin,Y; Ozge,S.
In this study, the effects of boric acid and humate supplementation into hen diets on egg production and quality parameters and blood cholesterol levels were examined. For this aim, totally 160, 40 weeks of age, Hyline-White 98 layers were randomly divided into control and 3 treatment groups each containing 40 birds and 10 replicates (each with 4 birds). There was no boric acid or humate supplementation to control group diets (basal diet) where as treatment groups were supplemented with (basal diet plus) 90 ppm boric acid or 1 g/kg humate, or combination of these two feed additives, respectively. The experimental period lasted in 14 weeks. End of the trial there were no significant effects of dietary boric acid and humate inclusion on feed intake, egg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boron; Egg production and quality; Humic substance; Performance.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400008

Boron supplementation in broiler diets
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Fassani,EJ; Bertechini,AG; Brito,JAG; Kato,RK; Fialho,ET; Geraldo,A.
Boron supplementation in broiler feed is not a routine practice. However, some reports suggest a positive effect of boron on performance. This study assessed the effects of boron supplementation on broiler performance. Diets were based on maize and soybean meal, using boric acid P.A. as boron source. Six supplementation levels (0, 30, 60, 90, 120 and 150 ppm) were evaluated using 1,440 one-day old males housed at a density of 30 chickens in each of 48 experimental plots of 3m². A completely randomized block design was used with 8 replicates. Feed intake, weight gain and feed conversion were assessed in the periods from 1 to 7 days, 1 to 21 days and 1 to 42 days of age, and viability was evaluated for the total 42-day rearing period. No performance variable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Boron; Broiler; Chicken; Performance.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400004

Arbuscular mycorrhizal fungi and auxin associated with microelements in the development of cuttings of Varronia leucocephala
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Fernandes,Mônica D. S. da S.; Morais,Marciana B. de; Mesquita-Oliveira,Francisco F.; Ulisses,Cláudia; Medeiros,José F. de; Albuquerque,Cynthia C. de.
ABSTRACT The plant Varronia leucocephala is widely used in Brazil for its therapeutic properties. However, a major problem for the seedlings is the low percentage of root formation. The objective of this study was to establish a rooting protocol for V. leucocephala cuttings, using phytoregulators and microelements associated with arbuscular mycorrhizal fungi. The auxin indole-3-butyric acid (IBA) concentration of 1500 mg L-1 showed the best rooting percentage, and it is proposed associating the microelements zinc and boron with the highest IBA doses. Although an increase in the rooting percentage was observed in the presence of zinc, it was not the most suitable for improving the percentage of propagation. Consequently, association of arbuscular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boron; Rooting; Zinc.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300167

Boron fertilizing management on fruit production and quality of mango cv. Palmer in semiarid
Provedor de dados: Revista Brasileira de Fruticultura
Autores: Oldoni,Fernanda Campos Alencar; Lima,Augusto Miguel Nascimento; Cavalcante,Ítalo Herbert Lucena; Sousa,Karla dos Santos Melo de; Carneiro,Marcio Alves; Carvalho,Itamara Rayanny Bessa de.
Abstract  Adequate fertilizing management is crucial to reach high mango yields that demand a well-defined fertilizer management, including micronutrient such as boron which management is more difficult due to the narrow range between deficiency and toxicity. This way, an experiment was carried out to evaluate the fruit production and quality of mango cv. Palmer as a function of boron fertilizing management in Brazilian semiarid. The experimental design was in randomized blocks with six treatments (strategies for boron fertilizing), as follows: T1 = five sprays with H3BO3 (two first at 0.3% and three at 0.2%); T2 = five sprays with H3BO3 (two first at 0.3% and three at 0.4%); T3 = five sprays with H3BO3 (two first at 0.3% and three at 0.6%); T4 = two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangifera indica L.; Fertilization; Fertirrigation; Boron.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000303002

Boric acid in germination of pollen grains and fruit set of peach cultivars in subtropical region
Provedor de dados: Revista Ciência Agronômica (RCA)
Autores: Souza,Filipe Bittencourt Machado de; Pio,Rafael; Tadeu,Maraísa Hellen; Zambon,Carolina Ruiz; Gregory,L. Reighard.
ABSTRACT The pollination and fertilization process directly affects the crop yield of peach. Previous studies have shown that some cultivars lack consistent cropping (yield variation) in subtropical regions. The application of boric acid at flowering can minimize this problem. This study quantified the germination of pollen grains and fruit set on 18 cultivars of peach in a subtropical region when treated with boric acid at bud. The initial spray treatments were three concentrations of boric acid (400 mgL-1, 800 mgL-1 and 1,200 mgL-1) plus a control treatment of water. Treatments were sprayed on the shoots when the flower buds were flower bud swelling on early maturing cultivars Aurora 2 and Doçura 2. There is a cultivar difference where 'Aurora 2' had a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica; Pollination; Fertilization; Boron.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300496

Putative metabolic pathway of mannitol and sorbitol and in sugarcane
Provedor de dados: Scientia Agricola
Autores: Marino,Celso Luís; Leite,Susi Meire Maximino; Farro,Ana Paula Cazerta; Sassaki,Flávio Tetsuo; Campos,Henrique Luis Veronezi de; Coscrato,Virgínia Elias.
Until the mid 1950s, boron was believed to play an important role in the transport of sugars in plants. However, boron actually depends on sugar alcohols to be taken up by the plant. In some cases, the main sugars involved in this process are sorbitol and mannitol which form stable complexes with boron. In this study, the sequences of the SugarCane EST Genome Project (SUCEST) database were searched for enzymes involved in the metabolism of these sugars by comparing them with enzymes from other organisms. Eighteen contigs from sugarcane (Saccharum sp.) presented high similarity with 11 enzymes involved in the putative biosynthetic pathway of sorbitol and mannitol from fructose in sugarcane. Seven of these contigs had high homology with sequences deposited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boron; Expressed sequence tags (ESTs); Polyols; Sugar alcohol.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400017

การเพิ่มการติดผลและคุณภาพผลพลับพันธุ์ Fuyu โดยการผสมเกสรและการใช้แคลเซียมร่วมกับโบรอน
Provedor de dados: Thai Agricultural Research Repository
Autores: Kiratika Sillapaphet.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Persimmon; Diospyros kaki; Fuyu variety; Fruit set; Fruit qualities; Hand pollination; Calcium; Boron; Chiangmai province; Thailand; พลับ; พันธุ์ฟูยุ; การเพิ่มผลผลิต; คุณภาพผลผลิต; วิธีการติดผล; การผสมเกสร; การใส่ธาตุอาหาร; แคลเซียม; โบรอน; จ.เชียงใหม่.
Ano: 2005
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5494

การเปลี่ยนแปลงความเข้มข้นของธาตุอาหารในใบพลับพันธุ์ ฟูยุ และ P2 ในรอบปี
Provedor de dados: Thai Agricultural Research Repository
Autores: Jatupong Fujarern.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Persimmon leaf; Diospyros; Fuyu variety; P2 variety; Nutrient concentrations; Leaf analysis; Plant nutrition; Nitrogen; Phosphorus; Potassium; Calcium; Boron; Chiangmai province; Thailand; ใบพลับ; พันธุ์ฟูยุ; พันธุ์พีสอง; ธาตุอาหารพืช; การวิเคราะห์ระดับธาตุอาหาร; ระดับความเข้มข้น; ไนโตรเจน; ฟอสฟอรัส; โพแทสเซียม; แคลเซียม; โบรอน; จ.เชียงใหม่; ประเทศไทย.
Ano: 2009
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5504

Expression analysis of cell wall assembly and remodelling-related genes in Arabidopsis roots subjected to boron stress and brassinosteroid at different developmental stages
Provedor de dados: Acta Botanica Brasilica
Autores: İşkil,Rabia; Surgun-Acar,Yonca.
ABSTRACT Plant cell walls are affected by many biotic and abiotic stress conditions. The aim of this study is to determine the effects of 24-Epibrassinolide (EBL) on some cell wall-related genes in root tissue of five- and ten-week-old Arabidopsis thaliana plants exposed to boron (B) deficiency (0 µM) or toxicity (3000 µM) at the transcriptional level. Expressions of the genes that encode cellulose synthase (CESA1, CESA4, CESA6 and CESA8), cellulose synthase-like (CSLB5), expansin (EXPA5, EXPA8 and EXPA14) and cell wall protein (SEB1) decreased under conditions of B deficiency and toxicity. EBL treatments, in general, led the expressions of these genes to reduce significantly. Expressions of xyloglucan endotransglucosylase/hydrolase genes (XTH21 and XTH23)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 24-Epibrassinolide; Arabidopsis thaliana; Boron; Cellulose synthase; Gene expression; Expansin; Pectin methylesterase; Xyloglucan endotransglucosylase/hydrolase.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400546

Improving seed production of common bean (Phaseolus vulgaris L.) plants as a response for Calcium and Boron
Provedor de dados: Agricultural Engineering International : The CIGR e-journal
Autores: El-Dahshouri, Mohamad Farouk.
Two field experiments were carried out in summer successive seasons of 20115 and 2016 at the Vegetables Research Farm at Kaha, Qalubia Governorate Egypt. Experiment aimed to study the foliar application with calcium (Ca) and boron (B) on growth, nutrient content and yield quantity and quality of dry beans plant (Phaseolus vulgaris L.).The experiments were arranged in randomized complete block design. The obtained results showed that vegetative growth and seed yield and its components of dry bean plants were significantly increased by the foliar application with calcium or/and boron before and/or before and after flowering when compared with control treatment during the two seasons. The highest vegetative growth values were recorded by Ca at 2500 ppm or Ca...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dr; Plant Nutrition Phaseolus Vulgaris L.; Calcium; Boron; Foliar application; Mineral concentration; Vegetative growth and seed yield and quality.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4514

Soluble amino acid profile, mineral nutrient and carbohydrate content of maize kernels harvested from plants submitted to ascorbic acid seed priming
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: ALCÂNTARA,BERENICE K.; RIZZI,VANESSA; GAZIOLA,SALETE A.; AZEVEDO,RICARDO A.
ABSTRACT Both the scientific community and society have shown interest in improving the content of amino acids, carbohydrates and mineral nutrients in maize because it represents an important staple food in many developing countries. Earlier studies demonstrated that the treatment of seeds using ascorbic acid (AsA-seed priming) enhanced soluble carbohydrates, proteins and soluble amino acids for other species. AsA seed priming in maize showed the potential for reducing abiotic stresses. The effects on grain quality have not been previously demonstrated. This study investigated the impacts of AsA seed priming on maize kernel quality of seeds produced by the plants generated from the primed seeds, based on the amino acid profile and carbohydrate and mineral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitamin C; Grain quality; Boron; Sugar; Amino acids.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200695

Studies on stem cuttings of kiwi (Actinidia chinensis PL. CV Bruno)
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Ono,Elizabeth O.; Rodrigues,João D.; Pinho,Sheila Z. de.
The work was carried out to study the effects of some auxins and boron in the rooting of kiwi (Actinidia chinensis Planch cv Bruno) stem cuttings.. These cuttings were treated on the base individually with H2O; NAA 300 mg.L-1; IBA 300 mg.L-1; NAA 300 mg.L-1 + Boron; IBA 300 mg.L-1 + Boron; NAA 0,5%-talc and IBA 0,5%-talc. After the treatments, the cuttings were placed in styrofoam trays with vermiculite under moist conditions for 120 days. The evaluation of auxin and boric acid effects were made by observing rooted stem cuttings percentage; reducing and total sugar analysis (g/100 g of dry matter); and tryptophan analysis (in µg/100 mg of dry matter). The effects of such treatments were observed during four seasons of the year. The results showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Actinidia chinensis; NAA; IBA; Boron; Rooting.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100007

Fenologics characteristics of the ‘Siciliano’ lemon tree on two rootstocks influenced by liming and boron addition
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Grassi Filho,Hélio; Dechen,Antonio Roque; Torquato,Elano Marçal; Santos,Carlos Henrique dos.
The current study was developed with disturbed samples of an Oxisol, in which ‘Siciliano’ lemon trees seedlings (C. limon) were grafted on sour orange tree (C. aurantium) and rangpur lime tree (C. limonia). The experiment consisted of three basis saturation levels (50, 70 and 90 percent) and three boron doses (0.5; 1.5 and 4.5 mg dm-3) in the planting with 3x3x2 factorial experimental design with four replications. Mineral composition of the "Siciliano" lemon leaves as well as root system development in sour orange tree were higher than the rangpur lime tree. There was no effect in the interaction basis saturarion level and the boron doses for any of the evaluated parameters.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Liming; Boron; Calcium; Siciliano lemon trees; Rootstocks.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500002

Shoot and root responses of Trifolium vesiculosum to boron fertilization in an acidic Brazilian soil
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Favaretto,Nerilde; Motta,Antônio Carlos Vargas; Barcik,Cristina; Lustosa,Sebastião Brasil Campos; Comin,Jucinei José.
To analyze the influence of boron fertilization on shoot and root growth of Trifolium vesiculosum (arrowleaf clover), an acid soil profile (60 cm depth with 67% Al saturation) was recreated in a column (three layers of 20 cm each). Lime and fertilizer (P and K) were incorporated into the top 20 cm. The treatments consisted of six boron rates where boric acid was mixed throughout the profile. Addition of boron to soil with low pH and high Al increased the root and shoot growth, independent of the rate applied. Boron inhibited Al toxicity, but no effect was observed in the root length when Al was not present in the soil. It was also observed that there was more root growth below the plow layer (0-20 cm,) suggesting better root distribution in the soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root and shoot growth; Boron; Aluminum; Acidic soil.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400005

Saline-boron stress in northern Chile olive accessions: water relations, B and Cl contents and impact on plant growth
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Escobar,Hugo; Lara,Nelson; Zapata,Yubinza; Urbina,Camilo; Rodriguez,Manuel; Figueroa,Leonardo.
H. Escobar, N. Lara, Y. Zapata, C. Urbina, M. Rodriguez, and L. Figueroa. 2013. Saline-boron stress in northern Chile olive accessions: water relations, B and Cl contents and impact on plant growth. Cien. Inv. Agr. 40(3): 597-607. The objective of this study was to analyze the effect of saline-boron stress on the vegetative growth, dry leaf weight, water potential (&amp;#936;w), relative water content, and leaf and root B and Cl- contents in 8 accessions of olive. Rooted one-year-old plants were cultivated for 132 days with 50% shading in 5-L pots containing sand substrate and watered with Jensen's nutrient solution. After eight days of uniform ferti-irrigation, the plants were exposed to saline-boron stress, which was administered in three successive...
Tipo: Journal article
Palavras-chave: Boron; Chloride; Olive; Salinity; Water relations.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300012

Phloematic mobility of 10Boron in kiwifruit (Actinidia deliciosa) mixedshoots
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Sotomayor,Carlos; Ruiz,Rafael; Muñoz,Luis.
Boron (B) is an essential micronutrient showing restricted mobility in plants, except in species that synthesize polyols. The ability of kiwifruit to mobilize B through phloem transport has not yet been confirmed, despite its ability to synthesize the polyol myo-inositol. This study examined kiwifruit plants in which boric acid enriched with the stable 10B isotope was applied to the distal leaves of mixed shoots with flowers. At 24, 72 and 144 h, both 10B-treated and un-treated leaves and flowers from treated shoots were sampled and subsequently analyzed via mass spectrometry to determine the resulting 11B/10B ratios. Control leaves and flowers showed a natural ratio, varying between 3.82 and 4.05. In contrast, the ratios in treated leaves were 1.57 at 24...
Tipo: Journal article
Palavras-chave: Boron; Foliar absorption; Kiwifruit; Phloem mobility; Stable isotope.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300015

Boron dynamics related to fruit growth and seed production in kiwifruit (Actinidia deliciosa, cv. Hayward)
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Sotomayor,Carlos; Norambuena,Paulina; Ruiz,Rafael.
The effect of foliar boron treatments on fruit growth and seed development in Actinidia deliciosa, cv. Hayward, was studied. The distal leaves (BH) or fowers (BF) of a shoot were sprayed with 500 mg L-1 boric acid during the fowering period. The mobility of boron from the leaves to the fowers through the phloem was determined by spraying only the leaves. From 0 to 96 h after treatment, leaves and fowers were sampled and total boron was assessed. At harvest time, fruit weight and diameter plus seed weight and number were measured for the different treatments. The weight of fruits growing from shoots with boron-treated leaves were 14.1% higher than the control, while the weight of fruits derived from boron-treated fowers was 17% higher than that of fruits...
Tipo: Journal article
Palavras-chave: Boric acid; Boron; Fruit weight; Kiwifruit; Seed number; Seed weight.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100013

Interactive effects of excess boron and salinity on histological and ultrastructural leaves of Zea mays amylacea from the Lluta Valley (Arica-Chile)
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Bastías,Elizabeth; González-Moro,María B; González-Murua,Carmen.
E.I. Bastías, M.B. González-Moro, and C. González-Murua. 2013. Interactive effects of excess boron and salinity on histological and ultrastructural leaves of Zea mays amylacea from the Lluta Valley (Arica-Chile). Cien. Inv. Agr. 40(3): 581-595. Maize is widely cultivated throughout the world, and more maize is produced each year than any other grain. Studies on the response of maize to salinity have typically focused on physiological aspects, but few studies have addressed the effects of salinity on the anatomical and ultrastructural characteristics of different plant organs. We analyzed the cell structure and changes in tissue organization in young leaves of Zea mays L. amylacea as a consequence of high salt and boron (B) levels. Plants were treated in...
Tipo: Journal article
Palavras-chave: Amylacea; Amylacea maize; Anatomical plant; Boron; Histological; Salinity.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300011