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15N-labeled nitrogen from green manure and ammonium sulfate utilization by the sugarcane ratoon Scientia Agricola
Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Muraoka,Takashi; Rossi,Fabrício.
Legumes as green manure are alternative sources of nitrogen (N) for crops and can supplement or even replace mineral nitrogen fertilization due to their potential for biological nitrogen fixation (BNF). The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulfate (AS) was evaluated using the 15N tracer technique. N was added at the rate of 196 and 70 kg ha-1 as 15Nlabeled sunn hemp green manure (SH) and as ammonium sulfate (AS), respectively. Treatments were: (i) Control; (ii) AS15N; (iii) SH15N + AS; (iv) SH15N; and (v) AS15N + SH. Sugarcane was cultivated for five years and was harvested three times. 15N recovery was evaluated in the two first harvests. In the sum of the three harvests,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Brazil; Sunn hemp; Isotope technique.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300014
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ADUBAÇÃO NPK E PRODUÇÃO DE BORRACHA SECA PELA SERINGUEIRA (Hevea brasiliensis) Scientia Agricola
Murbach,Marcos Roberto; Boaretto,Antonio Enedi; Muraoka,Takashi; Silveira,Ronaldo Ivan; Boaretto,Rodrigo Marcel.
Instalou-se um experimento, na região de Garça, SP, em um solo Latossolo Vermelho escuro, A moderado, textura arenosa, com o objetivo de se avaliar a influência da adubação NPK sobre a produtividade de borracha seca da seringueira (Hevea brasiliensis) clone "PB 235", com 13 anos de idade. O experimento foi instalado em blocos ao acaso, em esquema fatorial fracionário (1/4)43, totalizando 16 tratamentos e 4 repetições, onde se utilizaram 4 níveis de N (0, 80, 160, 320 kg ha-1), 4 de K2O (0, 80, 160, 320 kg ha-1) e 4 de P2O5 (0, 40, 80, 160 kg ha-1). A produção foi avaliada entre os mêses de outubro de 1995 a junho de 1996. Conclui-se que a adubação potássica aumentou a produtividade de borracha seca, o mesmo não ocorrendo com a adubação nitrogenada e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seringueira; Adubação; NPK.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161999000100011
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Ratio and rate effects of 32P-triple superphosphate and phosphate rock mixtures on corn growth Scientia Agricola
Franzini,Vinícius Ide; Muraoka,Takashi; Mendes,Fernanda Latanze.
The availability of phosphorus (P) from " Patos de Minas" phosphate rock (PR) can be improved if it is applied mixed with a water-soluble P source. The objective of this study was to evaluate 32P as a tracer to quantify the effect of the ratio of mixtures of triple superphosphate (TSP) with PR and the rates of application on P availability from PR. Two experiments were conducted in a greenhouse utilizing corn (Zea mays L.) plants as test crop. In the first experiment, the P sources were applied at the rate of 90 mg P kg-1 soil either separately or as compacted mixtures in several TSP:PR ratios (100:0, 80:20, 60:40, 50:50, 40:60, 20:80 and 0:100 calculated on the basis of the total P content). In the second experiment, the TSP was applied alone or as 50:50...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Typic Haplustox; Relative agronomic effectiveness; Phosphorus recovery; Radioisotope.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000100010
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Soil-applied Zn effect on soil fractions Scientia Agricola
Leite,Camila Marcon de Carvalho; Muraoka,Takashi; Colzato,Marina; Alleoni,Luís Reynaldo Ferracciú.
ABSTRACT The interaction of Zn with soil compartments influences its bioavailability and uptake by plants. In this study, rice and soybean were cultivated under greenhouse conditions with the aim of evaluating Zn bioavailability and fractionation in a clayey-textured Typic Hapludox as a function of Zn rates (4 or 8 mg kg –1 Zn). The experiment was conducted until grain filling. Two soil subsamples (t 1 and t 2 ) that referred to the seeding and flowering stages, were collected and compared with two single extraction schemes, DTPA (Zn DTPAt1 and Zn DTPAt2 ) and Mehlich-1 (Zn Mt1 and Zn Mt2 ) for Zn available contents. Zn fractionation was carried out with t 2 soil subsamples for the testing of the following fractions: exchangeable Zn (Zn Exc ), Zn bound to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DTPA; Mehlich-1; Soil phases; Soil chemistry; Micronutrient.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000201400
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Utilization of nitrogen from green manure and mineral fertilizer by sugarcane Scientia Agricola
Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Guirado,Nivaldo; Rossi,Fabrício; Mendes,Paulo Cesar Doimo; Muraoka,Takashi.
Given their potential for biological nitrogen fixation, legumes used as green manure are an alternative source of nitrogen to crops, and can supplement or even replace mineral nitrogen fertilization. The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulphate (AS) was evaluated using the 15N tracer technique. Amounts of 195.8 kg and 70 kg N per hectare, respectively, of sunn hemp and AS were added in the following treatments: without green manure and without AS; without green manure, with AS -15N; with green manure-15N and with AS; with green manure-15N, without AS; with green manure and with AS-15N. Four samples from the leaves +3 were collected and 2 m of the sugar cane row were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp; Sunn hemp; 15N; Isotope technique.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600004
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Heavy metals in vegetables and potential risk for human health Scientia Agricola
Guerra,Fernando; Trevizam,Anderson Ricardo; Muraoka,Takashi; Marcante,Nericlenes Chaves; Canniatti-Brazaca,Solange Guidolin.
Ingestion of vegetables containing heavy metals is one of the main ways in which these elements enter the human body. Once entered, heavy metals are deposited in bone and fat tissues, overlapping noble minerals. Slowly released into the body, heavy metals can cause an array of diseases. This study aimed to investigate the concentrations of cadmium, nickel, lead, cobalt and chromium in the most frequently consumed foodstuff in the São Paulo State, Brazil and to compare the heavy metal contents with the permissible limits established by the Brazilian legislation. A value of intake of heavy metals in human diets was also calculated to estimate the risk to human health. Vegetable samples were collected at the São Paulo General Warehousing and Centers Company,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Contamination; Food chain; Potentially toxic element; Daily intake; Consumption habit.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100008
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Sulfur utilization by rice and Crotalaria juncea from sulfate - 34S applied to the soil Scientia Agricola
Trivelin,Paulo Cesar Ocheuze; Bendassolli,José Albertino; Muraoka,Takashi; Carneiro Jr.,Francisco.
In tropical soils with intensive agriculture an increasing sulfur deficiency has been verified in several crops. The low available S in these soils is caused by the continuous use of concentrated NPK fertilizers. The objective of this work was to evaluate the utilization by rice (Oriza sativa L.) and crotalaria juncea (Crotalaria juncea L.) of sulfur applied to the soil, under greenhouse conditions. Pots with 3 kg of an Argisol (Paleudalf) were used to test the isotopic technique with the stable isotope 34S, adding a solution of sodium sulfate labeled with 34S (14.30 ± 0.05 atom % of 34S) to the soil (70 mg SO4-S per kg-1 of soil) 18 days after sowing both species. The shoots of the crotalaria and rice were harvested, respectively on the 72nd and 122nd...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Stable isotope; 34S technique; Mass spectrometry; Sulfur uptake.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000100030
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Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer Scientia Agricola
Villanueva,Felipe Carlos Alvarez; Muraoka,Takashi; Trevizam,Anderson Ricardo; Franzini,Vinicius Ide; Rocha,Alexandre Prado.
Eucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. However, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. The use of P by eucalyptus (E. urophylla, E. grandis, and E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic Typic Haplustox from the Cerrado region, and 32P isotopic method. The P sources tested were triple superphosphate (TSP), phosphate rock (PR) and the triple superphosphate mixed with PR...
Tipo: Info:eu-repo/semantics/article Palavras-chave: L value; P sources; Radioisotope.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010
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Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues Scientia Agricola
Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Muraoka,Takashi.
Nitrogen (15N) released from sunnhemp (Crotalaria juncea), velvet bean (Mucuna aterrima) and from Phaseolus bean residues was evaluated after incubation of the plant material in an Eutrudox and a Paleudalf, in a greenhouse experiment with pots containing 6 kg of air dried soil. Dry matter equivalent to 13 Mg ha-1 of Phaseolus bean residues and the same amount of above ground parts of the leguminous species, associated to 2.7 and 2.2 Mg ha-1 of roots of sunnhemp and velvet bean respectively, were incorporated into the soil. A completely randomized experimental design was adopted, with treatments arranged in a 2 <FONT FACE=Symbol>´</FONT> 3 + 1 factorial, replicated three times. The treatments were the following: two soils (Eutrudox and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mineral nitrogen; Green manure; Nitrogen-15; N-mineralization.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100020
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Utilização de fósforo do solo e do fertilizante por tomateiro Scientia Agricola
Alvarez V.,Felipe Carlos; Duete,Robson Rui Cotrim; Muraoka,Takashi; Duete,Washington Luiz Cotrim; Abreu Jr.,Cassio Hamilton.
O fósforo, embora seja o macronutriente em menor concentração na maioria das culturas, é o mais aplicado como fertilizante mineral, constituindo uma parcela significativa do custo de produção agrícola. O conhecimento das diferenças entre variedades de plantas em relação à absorção do fósforo do solo e do fertilizante torna-se de grande importância para programas de melhoramento e manejo da adubação fosfatada. Utilizando a técnica do traçador radioativo 32P, foram avaliadas as diferenças na absorção de fósforo proveniente do solo e do fertilizante (superfosfato triplo), na disponibilidade de P do solo pelos valores L e A e nas eficiências fisiológica, ecofisiológica e agronômica do nutriente pelas variedades comerciais de tomate (Licopersicum esculentum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Licopersicum esculentum; Valor A; Valor L; 32P; Radioisótopo.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000100024
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Fate of nitrogen (15N) from velvet bean in the soil-plant system Scientia Agricola
Scivittaro,Walkyria Bueno; Muraoka,Takashi; Boaretto,Antonio Enedi; Trivelin,Paulo César Ocheuze.
Because of their potential for N2 biological fixation, legumes are an alternative source of nitrogen to crops, and can even replace or supplement mineral fertilization. A greenhouse experiment was carried out to evaluate temporal patterns of velvet bean (Mucuna aterrima) green manure release of nitrogen to rice plants, and to study the fate of nitrogen from velvet bean in rice cultivation. The isotopic dilution methodology was used. Treatments consisted of a control and 10 incubation periods of soil fertilized with 15N-labeled velvet bean (0, 20, 40, 60, 90, 120, 150, 180, 210, and 240 days). The plant material was previously chopped, sifted (10 mm mesh sieve) and oven-dried (65ºC). Incubation of the plant material (2.2 g kg-1 soil) was initiated by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mucuna aterrima; Effectiveness; Recovery; Losses.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000200014
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Boron affects the growth and ultrastructure of castor bean plants Scientia Agricola
Silva,Denis Herisson da; Rossi,Monica Lanzoni; Boaretto,Antonio Enedi; Nogueira,Neusa de Lima; Muraoka,Takashi.
The cultivation of oleaginous plants like the castor bean guarantees employment for agricultural families and can contribute in energy and chemical sectors, especially in the northeastern semi-arid regions of Brazil. Boron (B) deficiency is a widespread nutritional disorder despite the fact that various anthropogenic sources with high B content may increase soil B to toxic levels for plants. The present study was designed to investigate the ultrastructural effects of boron deficiency and toxicity on castor bean plants which were grown under greenhouse condition using plastic containers with 10 L of nutrient solution. Boron treatments comprised: control (no B); 0.27 mg L-1, 5.40 mg L-1 B pots (one plant per pot), tested in a completely randomized design...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Electron microscopy; Middle lamellae; Micronutrient; Xylem; Starch.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600014
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Fertilização foliar de nitrogênio para laranjeira em estágio de formação Scientia Agricola
Boaretto,Antonio Enedi; Schiavinato Neto,Plácido; Muraoka,Takashi; Oliveira,Mauro Wagner; Trivelin,Paulo César Ochezue.
Laranjeiras em estágio de formação receberam adubação foliar com uréia (15N). As folhas absorveram, nas 48 horas após a adubação foliar, 52% do N aplicado. Em relação ao N aplicado nas folhas das mudas, 38, 39, 23 e 15% foram recuperados nas plantas coletadas aos 75, 120, 180 e 360 dias após o transplante para os vasos, respectivamente. A adubação foliar das mudas não teve efeitos significativos no peso de matéria seca e no acúmulo de N durante o primeiro ano após o transplante.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adubação foliar; 15N; Citrus; Uréia.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161999000300015
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Alumínio e a absorção de cálcio por mudas de pimenta do reino Scientia Agricola
Veloso,Carlos Alberto Costa; Malavolta,Eurípedes; Muraoka,Takashi; Carvalho,Eduardo Jorge Maklouf.
Um experimento com solução nutritiva foi conduzido em casa de vegetação com o objetivo de verificar os efeitos da nutrição de cálcio na toxicidade de alumínio em mudas de pimenta do reino. Os tratamentos constituíram-se de três concentrações de cálcio (10; 40 e 160 mg L-1) adicionados como CaCl2 em combinação com três concentrações de alumínio (0; 10 e 20 mg L-1) adicionados como AlCl3.6H2O. A solução nutritiva continha as seguintes concentrações dos íons expressos em mg L-1: N-NO3 (80,5); N-NH4 (10,5); P(1,5); K(39,0); Mg(24,0); S-SO4(32,0); B(0,5); Cu(0,06); Fe(5,0); Mn(1,0); Mo(0,03) e Zn(0,10). Os tratamentos com alumínio retardaram o crescimento das mudas de pimenta do reino, induziram sintomas de toxicidade de alumínio na parte aérea e principalmente...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Piper nigrum; Toxicidade de alumínio; Cálcio; Nutrição.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000100023
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Relationship between acidity and chemical properties of brazilian soils Scientia Agricola
Abreu Jr.,Cássio Hamilton; Muraoka,Takashi; Lavorante,André Fernando.
In soils of tropical climate regions the high acidity and the presence of exchangeable aluminum (Al3+), associated to low fertility, are the main restrainting factors for agricultural production. A laboratory experiment was conducted using 26 soils of different Brazilian regions, to investigate soil acidity components, giving emphasis to Al and their relations with chemical properties. The pH correlated positively with P, Ca, Mg, K, BS, CEC and V% values, and negatively with Al saturation. The Al3+ was the predominant exchangeable cation in 32% of the soils with pH below 5.6. The KCl titratable H+ represents the hydroxi-Al(OH)x complex with low stability and the Wolf-Morgan extracted Al corresponds to the exchangeable + non-exchangeable Al species. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Total acidity; Exchangeable acidity; PH; Aluminum in soil.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200019
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Resposta de cultivares de pimenta-do-reino aos nutrientes NPK em um Latossolo Amarelo da Amazônia Oriental Scientia Agricola
Veloso,Carlos Alberto Costa; Carvalho,Eduardo Jorge Maklouf; Malavolta,Eurípedes; Muraoka,Takashi.
O presente trabalho foi desenvolvido, com o objetivo de estabelecer curvas de resposta da pimenteira-do-reino a nitrogênio, fósforo e potássio, num Latossolo Amarelo distrófico (Oxisol), no município de Senador José Porfírio, km 35 da rodovia Transamazônica. As doses de nitrogênio, aplicadas manualmente a cada ano foram: (0; 40; 80; 120 e 160 kg ha-1 de N) na forma de uréia, cinco doses de fósforo (0; 30; 60; 90 e 120 kg ha-1 P2O5) na forma de superfosfato triplo e cinco doses de potássio (0; 30; 60; 90 e 120 kg ha-1 K2O) na forma de KCl. Utilizou-se o delineamento em blocos ao acaso, com três repetições, sendo os tratamentos dispostos em esquema fatorial incompleto.O espaçamento foi de 3,0 m entre linhas e 2,5 m entre plantas, com seis plantas úteis por...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Piper nigrum; Adubação; Nitrogênio; Fósforo; Potássio.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000200023
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Cadmium phytoavailability in soils and evaluation of extractant effectiveness using an isotope technique Scientia Agricola
Guerra,Fernando; Trevizam,Anderson Ricardo; Fior,Rafael Carvalho; Muraoka,Takashi.
Large areas of land are nowadays contaminated by heavy metals and, it is therefore, important to monitor their levels in soils. Vegetables act as transfer mechanisms of such contaminants from soils to higher levels in the food chain. In this study, we aimed to evaluate the effectiveness of chemical extractants by the L-value method for Cd phytoavailability using the 109Cd radionuclide. In a greenhouse experiment, rocket plants (Eruca sativa L.) were cultivated in pots with samples from Typic Hapludox and Typic Quartzipsamment soils. Cadmium concentrations ranging from 0 to 16 mg kg-1 were added to a 200 mL solution containing 148 kBq 109Cd. The available Cd in the soil was extracted by DTPA, Mehlich-1, Mehlich-3, and a mixture of organic acids (acetic,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Potentially toxic element; L-value; Radioactive tracer; Weathered tropical soils; Soil contamination.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500010
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Crop rotation biomass and arbuscular mycorrhizal fungi effects on sugarcane yield Scientia Agricola
Ambrosano,Edmilson José; Azcón,Rozario; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Muraoka,Takashi; Trivelin,Paulo César Ocheuze; Rossi,Fabrício; Guirado,Nivaldo; Ungaro,Maria Regina Gonçalves; Teramoto,Juliana Rolim Salomé.
A cana-de-açúcar (Saccharum spp.) vem sendo cultivada no Brasil para produção de açúcar e agroenergia. Em seu sistema de produção, após um ciclo de 4 a 8 anos, é possível a rotação com plantas de cobertura, antes do seu replantio, para melhoria do solo e geração de renda. Estudou-se a caracterização e produtividade de biomassa de leguminosas (como adubos-verdes) e girassol (Helianthus annuus L.), a ocorrência natural de micorrizas, o teor de açúcar e a produtividade em colmos da cana-de-açúcar IAC 87-3396 e a viabilidade econômica desse sistema com cultivo após as opções de rotação, com quantificação da produtividade durante três cortes consecutivos. O amendoim (Arachis hypogaea L.) cv. IAC-Caiapó, girassol cv. IAC-Uruguai e mucuna-preta (Mucuna aterrimum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Green manure; Legumes; Biological nitrogen fixation; Sugarcane stalk yield.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600011
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Exchangeable aluminum evaluation in acid soils Scientia Agricola
Abreu Jr.,Cassio Hamilton; Muraoka,Takashi; Lavorante,André Fernando.
One of the main factors limiting agricultural production in tropical climate regions is mainly related to the presence of exchangeable aluminum (Al3+) in highly weathered acid soils. Four methods of Al3+ determination extracted with neutral 1 mol L¹ KCl solution were evaluated: three colorimetric methods (aluminon plus ascorbic acid, and eriochrome cyanine R by FIA) and the usual titrimetric method with back-titration. Surface samples from 20 soils of different Brazilian regions, with active acidity (0.01 mol L¹ CaCl2 pH) ranging from very high to medium (3.82 to 5.52), were used. The variance analysis revealed significant interaction among Al3+ determination methods and soil. Mean methods comparisons within each soil (Tukey, P < 0.05) indicated that,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: FIA; Aluminon; Colorimetry; Eriochrome cyanine R; Titrimetry.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300020
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Acid phosphatase activity and leaf phosphorus content in soybean cultivars Scientia Agricola
Raposo,Roberto Wagner Cavalcanti; Muraoka,Takashi; Basso,Luiz Carlos; Lavres Jr.,José; Franzini,Vinicius Ide.
The phosphate fertilization represents the most costly fraction of soybean crop production. Efficient soybean cultivars for P absorption and utilization in soils of medium available P are highly desirable and might contribute for increasing crop production potential. Thirty two soybean [Glycine max (L.) Merr.] cultivars recommended for 'Cerrado' and differing in growth cycle (early, semi-early, semi-late, and late) were grown in a dystrophic Typic Haplustox Cerrado soil to evaluate the acid phosphatase activity, P content in the diagnostic leaf, and shoot biomass. There were differences among the soybean cultivars within all maturation groups in acid phosphatase activity and shoot biomass. The diagnostic-leaf P-content showed significant differences on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enzymatic activity; Diagnostic-leaf; Maturation group.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400014
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