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	Provedor de dados Colegio de Postgraduados (6) Scientia Agricola (3) Ciência e Agrotecnologia (2) Rev. Bras. Ciênc. Solo (2) R. Bras. Zootec. (2) Engenharia na Agricultura (1) Rev. Ciênc. Agron. (1) Acta biol.Colomb. (1) BJM (1) Braz. J. Plant Physiol. (1) Ciência Rural (1) REA (1) Horticultura Brasileira (1) Phyton (1) Rev. Bras. Bot. (1) AGRIAMBI (1) Mais... Autor Hernández Hernández, Antelma (2) Megda,Marcio Mahmoud (2) Monteiro,Francisco Antonio (2) Novais,Roberto Ferreira (2) Andriolo,Jerônimo Luiz (1) Artur,Adriana Guirado (1) Barros,Cláudia Alessandra Peixoto de (1) Barros,Nairam Félix de (1) Batista,Paulo S. C. (1) Braga Neto,José Antônio (1) Brandão,Joana Angélica C. (1) Camargo,Carlos Eduardo de Oliveira (1) Castro,Gustavo Franco de (1) Cecon,Paulo Roberto (1) Chalfun,Nilton Nagib Jorge (1) Colombo, Gustavo André (1) Cortez,Thiago B. (1) Cruz Lagunas, Blas (1) Cunha,Ananda H. N. (1) Eymar,E (1) Mais... Palavra-chave Nutrient solution (26) Solución nutritiva (6) Maestría (5) Edafología (4) Growth (3) Rendimiento (3) Salinity (3) Yield (3) Brachiaria brizantha (2) Capsicum pubescens (2) Humic substances (2) Mineral nutrition (2) Root (2) Substancias húmicas (2) Abiotic stress (1) Absorción nutrimental (1) Adaptation (1) Al (1) Allium fistulosum L. (1) Biomass production (1) Mais... Tipo do documento Info:eu-repo/semantics/article (19) Info:eu-repo/semantics/other (1) Tesis (1) Ano 2020 (1) 2018 (1) 2016 (3) 2015 (2) 2014 (1) 2013 (1) 2012 (2) 2011 (4) 2010 (2) 2008 (1) 2007 (2) 2005 (2) 2004 (2) 2003 (1) 1998 (1) Mais... País Brazil (18) Mexico (6) Argentina (1) Colombia (1) Idioma Inglês (19) Espanhol (6) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 26 Primeira ... 1 2 ... Última Acidos húmicos y fúlvicos en la producción hidropónica de Chile Manzano (Capsicum pubescens R y P) en invernadero. Colegio de Postgraduados Hernández Hernández, Antelma. Para determinar el efecto de substancias húmicas (SH) en el crecimiento del chile manzano (Capsicum pubescens R y P), en invernadero, se evaluaron tres niveles de presión osmótica de solución nutritiva Steiner (0.54, 0.72 y 0.90 atm) y tres concentraciones de aplicación foliar de substancias húmicas (0.5, 1, 1.5 ml.L-1 de agua de las SH). Las variables medidas fueron: diámetro ecuatorial (DE), diámetro polar (DP), volumen (VOL), grosor de pericarpio (GP), numero de frutos comerciales (NFRC), numero de frutos pequeños (NFRP), número total de frutos (NTOT), rendimiento (RTO), peso seco de fruto (PSFR), firmeza (FIR), sólidos solubles totales (OBRIX), capsaicina (CAPS) y macro y micronutrientes (N, P, K, Ca, Mg y Fe. Al aplicar la solución nutritiva con... Palavras-chave: Substancias húmicas; Solución nutritiva; Capsicum pubescens; Rendimiento; Humic substances; Nutrient solution; Yield; Maestría; Edafología. Ano: 2011 URL: http://hdl.handle.net/10521/381 Acidos húmicos y fúlvicos en la producción hidropónica de Chile Manzano (Capsicum pubescens R y P) en invernadero. Colegio de Postgraduados Hernández Hernández, Antelma. Para determinar el efecto de substancias húmicas (SH) en el crecimiento del chile manzano (Capsicum pubescens R y P), en invernadero, se evaluaron tres niveles de presión osmótica de solución nutritiva Steiner (0.54, 0.72 y 0.90 atm) y tres concentraciones de aplicación foliar de substancias húmicas (0.5, 1, 1.5 ml.L-1 de agua de las SH). Las variables medidas fueron: diámetro ecuatorial (DE), diámetro polar (DP), volumen (VOL), grosor de pericarpio (GP), numero de frutos comerciales (NFRC), numero de frutos pequeños (NFRP), número total de frutos (NTOT), rendimiento (RTO), peso seco de fruto (PSFR), firmeza (FIR), sólidos solubles totales (OBRIX), capsaicina (CAPS) y macro y micronutrientes (N, P, K, Ca, Mg y Fe. Al aplicar la solución nutritiva con... Palavras-chave: Substancias húmicas; Solución nutritiva; Capsicum pubescens; Rendimiento; Humic substances; Nutrient solution; Yield; Maestría; Edafología. Ano: 2011 URL: http://hdl.handle.net/10521/381 Demanda nutrimental y manejo agronómico del cultivo Physalis peruvianum L. Colegio de Postgraduados Gastelum Osorio, Delma Araceli. La uchuva (Physalis peruvianum L.) es una fruta de gran importancia en varios países por sus propiedades medicinales y potencial económico que hacen de la uchuva una alternativa de producción. En México no existe investigación en torno a esta especie sobre su manejo agronómico, suelo, clima, plagas, enfermedades y su demanda nutrimental bajo condiciones hidropónicas. El presente trabajo se realizó con el objetivo de generar información sobre la demanda nutrimental y del efecto de diferente densidad de plantación sobre el rendimiento del cultivo y calidad del fruto en condiciones protegidas y sistema hidropónico. El experimento se realizó bajo el diseño experimental completamente al azar, se evaluó el efecto de la fuerza iónica de la solución nutritiva... Palavras-chave: Physalis peruvianum; Solución nutritiva; Densidad; Rendimiento; Absorción nutrimental; Calidad; Nutrient solution; Plant density; Yield; Nutrient uptake; Quality; Maestría; Edafología. Ano: 2012 URL: http://hdl.handle.net/10521/705 Desarrollo de plántulas de portainjertos cítricos, en tubetes con diferentes sustratos y soluciones nutritivas. Colegio de Postgraduados Maldonado Peralta, María de los Angeles. En México, por Norma, a partir de 2010 la producción de portainjertos cítricos se tendrá que llevar a cabo en lugares protegidos, debido a la presencia de Huanglongbing (HLB), lo que trae como consecuencia cambios en la producción de plantas en vivero, que involucran el uso de contenedores, soluciones nutritivas, manejo, semilla certificada y sustratos pasteurizados. Con base en lo anterior, esta investigación tuvo como objetivo: Estudiar la germinación de semillas y el desarrollo de plántulas de portainjertos cítricos, en tubetes con diferentes sustratos y soluciones nutritivas, para disminuir el tiempo de trasplante y el momento para injertar. El trabajo se realizó en el Vivero Cazones, Cazones, Ver. La siembra se hizo en tubetes cónicos negros de 180... Palavras-chave: Portainjertos cítricos; Semillas; Sustratos; Solución nutritiva; Citrus rootstocks; Seeds; Substrate; Nutrient solution; Maestría; Edafología. Ano: 2010 URL: http://hdl.handle.net/10521/253 Calidad de semilla de tomate (Lycopersicon esculentum Mill.) por efecto de potenciales osmóticos, calcio y podas bajo condiciones de invernadero Colegio de Postgraduados Cruz Lagunas, Blas. Se realizaron dos experimentos en tomate bajo condiciones de hidroponía en invernadero, con el objetivo de evaluar la calidad física y fisiológica de la semilla de cuatro líneas y dos híbridos comerciales, con la aplicación de soluciones nutritivas con potenciales osmóticos de -0.054, -0.072 -0.090 MPa y concentraciones de 3, 6, 9 y 12 meq Ca L-1, con y sin poda. La evaluación de la semilla se llevó a cabo en el Colegio de Postgraduados, Montecillo, Estado de México, del 2 de noviembre de 2004 al 30 de abril de 2005. Se utilizó un diseño experimental de bloques completos al azar con arreglo factorial 6x3x2 para el experimento de PO y 6x4x2 en el experimento de Ca, con cuatro repeticiones. Los factores y sus niveles fueron Variedad híbridos comerciales... Tipo: Tesis Palavras-chave: Poda; Solución nutritiva; Hidroponía; Invernadero; Doctorado; Producción de Semillas; Pruning; Nutrient solution; Hydroponics; Greenhouse. Ano: 2007 URL: http://hdl.handle.net/10521/1553 Producción hidropónica de freesia x hybrida bajo diferentes cubiertas plásticas. Colegio de Postgraduados Miranda Villagómez, Erika. La freesia es una especie florícola poco comercializada en México, con alto potencial como flor de corte, tolera bajas temperaturas, presenta amplia diversidad de colores y su aroma es agradable. En esta investigación se evaluó el efecto de malla negra (25 % transmitancia), malla roja (15 % transmitancia) y cubierta plástica (70 % transmitancia) en el crecimiento, desarrollo y calidad del tallo flora del freesia para corte. También se determinó el efecto de la concentración de la solución nutritiva Steiner (25, 50, 75 y 100 %) bajo malla sombra roja en estas variables. El estudio se llevó a cabo en el Campo Experimental del Colegio de Postgraduados, en Montecillo, México. En ambos experimentos se probaron dos fechas de siembra (22 de septiembre y 18 de... Palavras-chave: Freesia x hybrida; Sistema hidropónico; Solución nutritiva; Crecimiento; Calidad del tallo floral; Malla sombra; Hydroponic system; Nutrient solution; Plant growth; Floral stem quality; Shade net; Fruticultura; Maestría. Ano: 2012 URL: http://hdl.handle.net/10521/1714 Sweet grape mini tomato grown in culture substrates and effluent with nutrient complementation REA Cunha,Ananda H. N.; Sandri,Delvio; Vieira,Jonas A.; Cortez,Thiago B.; Oliveira,Thiago H. de. The objective of this study was to evaluate production of Sweet Grape mini tomato (Lycopersicum esculentum Mill.) using culture substrates and nutrient solution sewage effluent, applied by drip irrigation (fertigation). The experiment was conducted at the University of Goiás State (UEG-UnUCET), from June to November 2011 in Anápolis-GO, Brazil. The experimental design was a 2 x 3 factorial arrangement in a randomized complete block design with four repetitions. The plots were made by combining two nutrient solutions, effluent supplemented with mineral fertilizers (EcS); conventional nutrient solution (SnC); in addition three cultivation substrates: 60% of fine sand washed + 40% substrate composed by 20% coconut fiber plus 80% pine bark (S1); 20% coconut... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mini tomato; Nutrient solution; Reuse. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400010 Growth, water consumption and mineral composition of watercress under hydroponic system with brackish water Horticultura Brasileira Lira,Raquele M; Silva,Ênio FF; Silva,Gerônimo F; Soares,Hammady R; Willadino,Lilia G. ABSTRACT The underground water reserves in the semi-arid region present high salinity levels. However, the scarcity of the resource compels the use of this water for several human activities, including agriculture. The aim of this work was to evaluate the use of brackish water for watercress cultivation (Nasturtium officinale) in a hydroponic NFT system (laminar flow of nutrients) and effects on water consumption, growth, yield and nutrient extraction by the plant. We studied six levels of salinity (0.2; 1.2; 2.2; 3.2; 4.2 and 5.2 dS m-1), in a completely randomized experimental design, with four replicates. Salinity was obtained by the addition of NaCl into the local water supply, being these waters used to prepare the nutrient solution and to replace the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Nasturtium officinale; Nutrient solution; NFT system; Salinity. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100013 Nutrient levels of the soil solution obtained by means of suction cups in intensive tomato cultivation: (with 5 tables & 1 figure) Phyton Lao,MT; Jiménez,S; Eymar,E; Fernández,EJ. Suction cups are the only viable method to obtain in situ the soil solution along the culture in real time (24 h). The soil solution is the objective criterion to modify the nutrient solution, so that it can be an appropriate tool for fertirrigation management. The nutrient levels of the soil solution must be known to establish the appropriate approach to nutrients management. In this work, levels of pH, EC,NO3-,NH4+, H+2PO4- , K+, Ca2+, Mg2+, Na+ and Cl- of the soil solution of three tomato crops were followed for periods 1995/96 and 1996/97 culture estimated in a trial carried out during two years. Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertirrigation management; Nutrient parameters; Nutrient solution; Tomato production. Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100003 Response of Dalbergia miscolobium Benth. seedlings, a cerrado tree species, to mineral nutrient supply Rev. Bras. Bot. Sassaki,Regina M.; Felippe,G.M.. (Response of Dalbergia miscolobium Benth. seedlings, a cerrado tree species, to a mineral nutrient supply). The soil under the Brazilian cerrado vegetation is very poor in nutrients. The aim of this study was to investigate the effect of the addition of a nutrient solution in the early growth of D. miscolobium, a typical cerrado tree species, cultivated in cerrado soil. Seeds were germinated in Petri dishes and seven-day old seedlings were transfered to pots containing cerrado soil. These were supplied once a week with a normal, 1/2 or 1/10 strength nutrient solution. Four growth analysis were done over a period of 145 days from seed imbibition, in terms of dry mass, leaf area and carbohydrate and nitrogen contents. Other derived parameters were also... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dalbergia miscolobium; Carbohydrate content; Nitrogen content; Early growth; Nutrient solution. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000100006 Iron Availability in Tropical Soils and Iron Uptake by Plants Rev. Bras. Ciênc. Solo Mielki,Guilherme Furlan; Novais,Roberto Ferreira; Ker,João Carlos; Vergütz,Leonardus; Castro,Gustavo Franco de. ABSTRACT Given the increase in crop yields and the expansion of agriculture in low fertility soils, deficiency of micronutrients, such as iron, in plants grown in tropical soils has been observed. The aim of this study was to evaluate Fe availability and Fe uptake by corn (Zea mays L.) plants in 13 different soils, at two depths. Iron was extracted by Mehlich-1, Mehlich-3, and CaCl2 (Fe-CC) and was fractionated in forms related to low (Feo) and high (Fed) crystallinity pedogenic oxyhydroxides, and organic matter (Fep) using ammonium oxalate, dithionite-citrate, and sodium pyrophosphate, respectively. In order to relate Fe availability to soil properties and plant growth, an experiment was carried out in a semi-hydroponic system in which part of the roots... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mehlich; Corn (Zea mays); Micronutrient; Nutrient solution; Latossolo. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100543 Differential Behavior of Young Eucalyptus Clones in Response to Nitrogen Supply Rev. Bras. Ciênc. Solo Ferreira,Eric Victor de Oliveira; Novais,Roberto Ferreira; Pereira,Greice Leal; Barros,Nairam Félix de; Silva,Ivo Ribeiro da. Eucalyptus requires large amounts of nitrogen (N); however, it responds in diverse manners to the application of this nutrient. The aim of this study was to evaluate the differential performance in growth, mineral nutrition, and gas exchanges of N-fertilized Eucalyptus clones. The treatments consisted of two Eucalyptus clones (VM-01 and I-144) and six N application rates (0, 0.74, 2.93, 4.39, 5.85, and 8 mmol L-1 NH4NO3) arranged in a randomized complete block design with five replications. VM-01 had greater plant height and greater height/collar diameter ratio, as well as higher leaf concentrations of all macronutrients and of Cu, Fe, Mo, and Zn. In terms of total and root dry matter production, root/shoot ratio, and collar diameter, as well as stomatal... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gas exchange; Growth; Nutrient solution; Nutritional efficiency. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300809 Macronutrients accumulation and growth of pineapple cultivars submitted to aluminum stress AGRIAMBI Mota,Mauro F. C.; Pegoraro,Rodinei F.; Batista,Paulo S. C.; Pinto,Valéria de O.; Maia,Victor M.; Silva,Deivisson F. da. ABSTRACT The objective was to determine the growth and accumulation of macronutrients of two pineapple cultivars submitted to different concentrations of aluminum (Al). For this, a study was conducted in plastic pots containing 4 L of nutrient solution, in a randomized block design, in a 2 x 5 factorial scheme, corresponding to two pineapple cultivars (‘IAC Fantástico’ and ‘Vitória’) and five Al concentrations (0, 21.6, 43.2, 64.8 and 86.4 mg of Al plant-1), with four replicates. The following variables were evaluated: root length, dry matter of root, stem and leaf, stem diameter, number of leaves, chlorophyll content and accumulation of macronutrients at 60 days after treatment. The cv. ‘Vitória’ showed a linear decrease in chlorophyll content, root dry... Tipo: Info:eu-repo/semantics/article Palavras-chave: Al; Toxicity; Tolerance; Nutrient solution. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100978 Nitrogen and potassium supply and the morphogenic and productive characteristics of marandu palisadegrass R. Bras. Zootec. Megda,Marcio Mahmoud; Monteiro,Francisco Antonio. The objective of this work was to study morphogenic characteristics, and dry matter production of roots and shoots of marandu palisadegrass (Brachiaria brizantha cv. Marandu) submitted to combinations of nitrogen and potassium, in a nutritive solution, employing silica as substrate. The experiment was carried out in a greenhouse during the summer. It was used a 5² fractionated factorial scheme with 13 combinations of nitrogen and potassium, which were distributed in a randomized block design, with four replications. The nitrogen × potassium interaction was significant for the number of tillers and leaves, for leaf area, for shoots and root section dry mass, for total length and surface and specific length and surface in the roots. Production of aerial part... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; Leaf; Nutrient solution; Root; Shoot; Tiller. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800007 Root system characteristics of Marandu palisadegrass supplied with nitrogen and magnesium rates R. Bras. Zootec. Garcez,Tiago Barreto; Megda,Marcio Mahmoud; Artur,Adriana Guirado; Monteiro,Francisco Antonio. The development of root system of forage grasses is influenced by the supply of mineral nutrients. The experiment was carried out in a greenhouse in Piracicaba, São Paulo State, with the objective of evaluating the effect of nitrogen and magnesium rates on dry mass yield, total length and surface, specific length and surface, and concentrations of nitrogen, magnesium, calcium and potassium in the root system of Brachiaria brizantha Stapf. cv. Marandu. It was studied five rates of nitrogen (2, 9, 16, 23 and 30 mmol L-1) and five rates of magnesium (0.05, 0.70, 1.35, 2.00 and 2.65 mmol L-1) in nutrient solutions in an incomplete 5² factorial arrangement, which resulted in the following combinations: 2/0.05; 2/1.35; 2/2.65; 9/0.70; 9/2.00; 16/0.05; 16/1.35;... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; Nutrient; Nutrient solution; Root; Root length; Root surface. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700005 Production, water consumption and nutrient content of Chinese cabbage grown hydroponically in brackish water Rev. Ciênc. Agron. Lira,Raquele Mendes de; Silva,Ênio Farias de França e; Silva,Gerônimo Ferreira da; Santos,Alexandre Nascimento dos; Rolim,Mário Monteiro. ABSTRACTUnderground water reserves in the semi-arid region of Brazil are stored in the crystal formations that in large part have high concentrations of salt. However, the scarcity of this resource makes the use of this water necessary for various activities, including agriculture. The aim of this study was to evaluate the use of brackish water on the electrical conductivity and pH of the nutrient solution, and on the production, water consumption and the uptake of nutrients in Chinese cabbage (Brassica pekinensis L.) under a hydroponic system. The experimental design was completely randomised, with four replications and six levels of water salinity (0.2, 1.2, 2.2, 3.2, 4.2 and 5.2 dS m-1), obtained by adding NaCl to the local water supply, with this water... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica pekinensis L.; Nutrient solution; Salinity; Mineral nutrition. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000300497 CULTIVO SEMI-HIDROPÔNICO COMO FERRAMENTA DE SELEÇÃO PARA TOLERÂNCIA AO ALUMÍNIO EM GRAMÍNEAS FORRAGEIRAS Engenharia na Agricultura Colombo, Gustavo André; Vaz-de-Melo, Aurélio; Machado Filho, Gilberto Coutinho; Sousa, André Silva de. O aprimoramento constante das ferramentas de seleção se faz necessário, no sentido de otimizar a eficiência de um programa de melhoramento para tolerância ao alumínio. Desta forma, o objetivo deste trabalho foi estabelecer um volume de vaso ideal ao cultivo semi-hidropônico de gramíneas forrageiras submetidas ao estresse por alumínio em solução nutritiva. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições, sendo cada repetição constituída por uma planta por vaso. Os tratamentos foram dispostos em esquema fatorial 4x5, sendo o primeiro fator constituído por quatro genótipos de gramíneas forrageiras (Brachiaria Humidicola; Brachiaria brizantha cv. Piatã; Panicum maximum cv. Massai e Panicum maximum cv. Mombaça) e o... Tipo: Info:eu-repo/semantics/article Palavras-chave: Toxic aluminum; Abiotic stress; Nutrient solution; Forage production. Ano: 2016 URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/654 Rates of calcium, yield and quality of snap bean Scientia Agricola Favaro,Simone Palma; Braga Neto,José Antônio; Takahashi,Hideaki Wilson; Miglioranza,Édison; Ida,Elza Iouko. Calcium ions (Ca) play an important role in many biochemical processes, delaying senescence and controlling physiological disorders in fruits and vegetables. The objective of this experiment was to analyze the effect of increasing calcium concentrations in snap beans. Snap bean cultivar UEL 1 was sown in sand containing 80 mg L-1 of calcium supplemented with nutrient solution, plus calcium at different contents: 0, 75, 150 and 300 mg L-1. Ca was mainly recovered in the shoots, followed by roots and pods. Calcium concentrations in the pods were 130, 259, 349 and 515 mg 100 g-1dry matter on a dry weight basis, in relation to the enhancement of calcium contents in the nutrient solution, respectively. A negative relationship between nitrogen content in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Biomass production; Pod; Nutrient solution; Nitrogen. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600009 Growth of citrus rootstocks under aluminium stress in hydroponics Scientia Agricola Pereira,Walter Esfrain; Siqueira,Dalmo Lopes de; Puiatti,Mario; Martínez,Carlos Alberto; Salomão,Luiz Carlos Chamhum; Cecon,Paulo Roberto. Plants present different degrees of adaptation to aluminium (Al) concentrations in the soil, and the understanding of this characteristic can lead to a viable option for the utilization of acid soils. The objective of this experiment was to evaluate the effects of five Al concentrations (0, 50, 100, 200, and 400 mumol L-1) on the growth of 'Rangpur' lime (Citrus limonia Osbeck) and 'Volkamer' lemon (Citrus volkameriana Hort. ex Tan.), and tangerine rootstocks 'Cleópatra' (Citrus reshni Hort. ex Tan) and 'Sunki' (Citrus sunki Hort. ex Tan.), in hydroponic culture. The treatments were arranged in a randomized block design, with four replications. For all rootstocks, the relative growth rate in terms of plant total fresh matter increased under low and,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus sp.; Relative growth rate; Principal components; Nutrient solution. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100006 Genetic control of wheat seedling root growth Scientia Agricola Camargo,Carlos Eduardo de Oliveira; Ferreira Filho,Antonio Wilson Penteado. Wheat cultivars should have long primary roots to allow good crop establishment, considering the short crop establishment season (April) in the State of São Paulo, Brazil, where the occurrence of water stress is frequent. This paper demonstrates the control and type of inheritance of the primary root growth trait. Crosses were made between genotypes, BH-1146 and KAUZ "S"/IAC-24 M4 with strong and reduced primary root growth, respectively. F2 and F3 generation seeds from these crosses and F2 generation seeds from the backcrosses of both parents were also obtained. Seedlings from these genotypes plus the parentals were evaluated in relation to primary root growth in complete nutrient solutions containing 3.875 mg L-1 phosphorus, at pH 4.0 and a temperature... Tipo: Info:eu-repo/semantics/other Palavras-chave: Root growth; Nutrient solution; Recessive genes. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400004 Registros recuperados: 26 Primeira ... 1 2 ... Última

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