Nonlinear models. An approach to model irrigated and non-irrigated common bean (Phaseolus vulgaris L.) growth

Common beans reduce their development and productivity when facing soil water deficit. Comprehension about growth response under this condition can be a tool for cultivar selection and escape from scarcity periods. Therefore, the objective was to characterize bean growth in different water conditions using logistic and chanter models. Two experiments (crop season= EI and fallow season = EII) were carried out in Santa Maria, RS, Brazil in a bifactorial scheme (cultivars: Triunfo, Garapiá, FC104; water condition: irrigated, not irrigated) in a completely randomized design. Fortnightly evaluations of height, number of nodes, stem diameter, root length, aerial part, roots, and nodules dry matter were carried out. The data were adjusted according to the accumulated thermal sum by the logistic and chanter models. From the results, it is noted that there was a dissimilar performance between water conditions, cultivars, and experiments. The best adjustment occurred for stem diameter, node number, and aerial part dry matter. Between models, the logistic is the most suitable to describe common bean growth.

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MORPHOPHYSIOLOGICAL RESPONSES OF COWPEA GENOTYPES TO IRRIGATION WATER SALINITY

Revista Caatinga ◽

10.1590/1983-21252017v30n421rc ◽

2017 ◽

Vol 30 (4) ◽

pp. 1001-1008

Author(s):

JOÃO PEDRO ALVES DE AQUINO ◽

ANTÔNIO AÉCIO DE CARVALHO BEZERRA ◽

FRANCISCO DE ALCÂNTARA NETO ◽

CARLOS JOSÉ GONCALVES DE SOUZA LIMA ◽

RAYLSON RODRIGUES DE SOUSA

Keyword(s):

Irrigation Water ◽

Dry Matter ◽

Arid Regions ◽

Stem Diameter ◽

Water Salinity ◽

Productive Capacity ◽

Randomized Design ◽

Irrigation Water Salinity ◽

Water Salt ◽

Completely Randomized Design

ABSTRACT Cowpea is broadly cultivated worldwide, especially in semi-arid or arid regions where soil or irrigation water salt contents can negatively influence the species’ productive capacity. The objective of this study was to evaluate the morphophysiological responses of cowpea genotypes to irrigation water salinity. The experiment was conducted in a greenhouse, under a completely randomized design with nine replications and in a 5x3 factorial scheme. Treatments consisted of five levels of irrigation water electrical conductivity - EC (EC0: 0.55; EC1: 1.60; EC2: 3.20; EC3: 4.80 and EC4: 6.40 dS m-1), applied from the 15th day after sowing (DAS), and three cowpea genotypes (G1: BRS Imponente; G2: MNC04-795F-168 and G3: MNC04-795F-159). EC increases at 35 DAS promoted stem diameter reductions of 8.0% (G1), 11.4% (G2), and 7.7% (G3), indicating different resistance to salinity by each genotype. Leaf area reductions at 25 and 38 DAS were 30.9% and 38.8% for EC0 and EC4, respectively. The BRS Imponente cultivar presented a performance superior to those of G2 and G3 in relation to stem diameter and stem dry matter at 25 DAS, and root-shoot and root-leaf ratios at 38 DAS.

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Tolerance of Annual Winter Species to Protoporfirinogen Oxidase Inhibiting Herbicides (Protox)

Planta Daninha ◽

10.1590/s0100-83582018360100089 ◽

2018 ◽

Vol 36 (0) ◽

Author(s):

C. ALVES ◽

L. GALON ◽

R.R. KAIZER ◽

F.L. WINTER ◽

C.M. HOLZ ◽

...

Keyword(s):

Leaf Area ◽

Plant Species ◽

Analysis Of Variance ◽

Dry Matter ◽

Stem Diameter ◽

F Test ◽

Tolerant Species ◽

Randomized Design ◽

Completely Randomized Design ◽

Linear Regressions

ABSTRACT: The use of plant species for the phytoremediation of soils contaminated with herbicides is an alternative that has been emphasized to minimize the effects of the persistence of agrochemicals in the environment. The objective of this study was to evaluate the tolerance potential of winter species in soils contaminated with sulfentrazone and fomesafen. The experiment was in a completely randomized design with four replications. Doses of fomesafen (0.0, 0.125, 0.250, and 0.5 kg ha-1) and sulfentrazone (0.0, 0.3, 0.6 and 1.2 kg ha-1) were applied during the pre-emergence of phytoremediate species (black oat, vetch, birdsfood trefoil, radish and lupin). Forty five days after the emergence of the species, the phytotoxicity (%), leaf area (cm2), stalk and/or stem diameter (mm), height (cm) and dry matter (g) variables of the plants were evaluated. Data were submitted to analysis of variance by F test; when significant, linear or non linear regressions were applied to evaluate the effect of herbicide doses on the studied species. Birdsfood trefoil was the less tolerant species to fomesafen and sulfentrazone. Black oat was less affected by the application of fomesafen doses, but it was highly susceptible to sulfentrazone. Radish presented tolerance only up to the fomesafen dose of 0.25 kg ha-1; as for sulfentrazone, the species showed tolerance. The most tolerant species to fomesafen and sulfentrazone, regardless of the dose, was the lupine, which is a possible alternative for the phytoremediation of soils contaminated with these herbicides.

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Relative Competitiveness of Common Bean Cultivars in Coexistence with Volunteer Corn

Planta Daninha ◽

10.1590/s0100-83582019370100097 ◽

2019 ◽

Vol 37 ◽

Author(s):

A.C.M. AGUIAR ◽

C.J. BASSO ◽

D.R.O. SILVA ◽

D.P. GHELLER ◽

B.D. NOVELLO ◽

...

Keyword(s):

Common Bean ◽

Leaf Area ◽

Plant Height ◽

Aerial Part ◽

Dry Matter ◽

Plant Population ◽

Randomized Experiment ◽

Dry Biomass ◽

Volunteer Corn ◽

Corn Plants

ABSTRACT: This study evaluated the relative competitiveness of two common bean cultivars in coexistence with volunteer corn emerging at different times in different proportions of plants in the association. Firstly, for both beans and volunteer corn, the plant population was determined in which the final production of dry biomass becomes constant (24 plants pot-1). A completely randomized experiment design, with five replicates, was carried out in a 2×2×5 factorial scheme, involving two common bean cultivars (IPR Gralha and Fepagro Triunfo), two emergence times of volunteer corn plants (-7 and 0 days in relation to beans) and five proportions of plants in the association (100:0, 75:25, 50:50, 25:75 and 0:100). At 35 days after bean emergence, measurements of plant height, leaf area and dry biomass of the aerial part of both species were measured. The competitiveness analysis was evaluated through diagrams applied to substitutive experiments and the use of relative competitiveness indices. The height of bean cultivars is reduced when volunteer corn emerges at the highest proportions and in advance. Early emergence of volunteer corn reduces leaf area from both bean cultivars while simultaneous emergence only reduces the leaf area of Triunfo. The dry matter biomass is lowered, due to the competition of the corn emerged before the bean, and the cultivar Gralha is more tolerant. In this way, the importance of the bean sowing in an area free from infestation of volunteer corn plants is verified.

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Crescimento e produção de alface em resposta a níveis de drilocomposto e NPK

Colloquium Agrariae ◽

10.5747/ca.2020.v16.n3.a368 ◽

2020 ◽

Vol 16 (3) ◽

pp. 18-26

Author(s):

Angelita Aparecida Coutinho Picazevicz ◽

Arnaldo Libório Santos Filho ◽

Leonardo dos Santos França Shockness ◽

Luana Silva Lima ◽

Karoliny Fim da Silva ◽

...

Keyword(s):

Aerial Part ◽

Dry Matter ◽

Dry Mass ◽

Root Mass ◽

Randomized Design ◽

Completely Randomized Design ◽

Npk Fertilization

The objective was to evaluate the effects of levels of compost and fertilization with NPK on growth and production of lettuce. The experiment was carried out in a greenhouse, in a completely randomized design in a 6 x 2 factorial scheme, with four replications, considering six levels of compost (0; 25; 50; 75; 100 and 125 g plant-1) and absence and presence fertilization with NPK. The evaluated parameters were number of total and commercial leaves, mass of fresh commercial and total aerial part, mass of commercial and total dry aerial part, dry root mass and total dry mass. There was an interaction between the drilocomposite and NPK fertilization for the evaluated parameters, except for root dry matter. The fertilization with NPK increased the growth and production of lettuce when there was no application of the compost. Likewise, that the levels of this fertilizer increased the growth and production of lettuce only in the absence of NPK. The application of drilocomposite increases the growth of lettuce plants and can replace fertilization with NPK.

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Ácidos húmicos para obtenção de maior massa fresca inicial em plantas de feijão comum ‘Pérola’

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v11i2.3936 ◽

2016 ◽

Vol 11 (2) ◽

pp. 06

Author(s):

Lincon Rafael da Silva ◽

Matheus Garcia Guimarães ◽

Roberto José de Freitas ◽

Adilson Pelá ◽

Daniel Diego Costa Carvalho

Keyword(s):

Common Bean ◽

Humic Acids ◽

Aerial Part ◽

Fulvic Acids ◽

Regression Equations ◽

Fresh Matter ◽

Randomized Design ◽

Bean Plants ◽

Quadratic Response ◽

Common Bean Plants

Objetivou-se avaliar diferentes doses de ácidos húmicos na obtenção de massa fresca inicial de plantas de feijão comum ‘Pérola’. Para tanto, sementes de feijão foram tratadas com Rhal S1® (18% de ácidos húmico + 1,5% de ácidos fúlvicos) nas doses de 0, 100, 200, 300, 400 e 500 mL da solução para cada 100 kg de sementes. Em seguida, as sementes foram semeadas em vasos de 500 g de capacidade e após 14 dias de cultivo em casa de vegetação, foram mensurados a massa fresca da parte aérea e massa fresca das raízes. O experimento foi disposto em delineamento inteiramente casualizados (DIC)com quatro repetições (1 planta por vaso; 4 plantas por tratamento)e os resultados foram submetidos, à análise de regressão. As equações de regressão obtiveram resposta quadrática para todas a variáveis analisadas em função das doses aplicadas. As plantas de feijão responderam pelo aumento de massa fresca da parte aérea até a dose de 200 mL de Rhal S1® 100 Kg-1 sementes, enquanto que amassa fresca das raízes respondeu até a dose de 100 mL de Rhal S1® 100 Kg-1 sementes, confirmando maior demanda da parte aérea por ácidos húmicos do que as raízes.Humic acids to obtain higher early fresh matter in ‘Pérola’ common bean plantsAbstract: It is aimed to evaluate different doses of humic acidto obtain early fresh matter of ‘Pérola’ common bean plants. Therefore, common bean seeds were treated with Rhal S1® (18% of humic acid + 1.5% of fulvic acids) at doses of 0, 100, 200, 300, 400 and 500 mL of solution for each 100 kg seeds. Just after, the seeds were sown in 500 g capacity pots and after 14-days cultivation in greenhouse, it was measured the fresh matter of the aerial part and fresh matter of the roots. The experiment was carried out in completely randomized design (CRD) with four replicates (1 plant per pot; 4 plants per treatment) and the results of the two experiments were subjected, together, to regression analysis. The regression equations obtained quadratic response for all variables evaluated in function of the applied doses. The common bean plants respond by the increasing of fresh matter of aerial part up to 200 mL of Rhal S1® 100 Kg-1 seeds, while the fresh matter ot the roots increasing up to 100 mLof Rhal S1® 100 Kg-1 seeds, confirming greater demand of shoots by humic acids than the roots.

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Nonlinear models for describing lettuce growth in autumn-winter

Ciência Rural ◽

10.1590/0103-8478cr20190534 ◽

2020 ◽

Vol 50 (7) ◽

Author(s):

Fernanda Carini ◽

Alberto Cargnelutti Filho ◽

Rafael Vieira Pezzini ◽

Jéssica Maronez de Souza ◽

Gabriela Görgen Chaves ◽

...

Keyword(s):

Critical Points ◽

Logistic Model ◽

Dry Matter ◽

Nonlinear Models ◽

Logistic Models ◽

Intrinsic Curvature ◽

Dependent Variables ◽

Thermal Sum ◽

Lettuce Growth ◽

Curvature Measures

ABSTRACT: The objectives of this study were to fit the Gompertz and Logistic models for the fresh and dry matter of leaves and the fresh and dry matter of shoots of three lettuce cultivars and indicate the best model to describe their growth in autumn-winter. The lettuce cultivars Gloriosa, Pira Verde, and Stella were evaluated in the autumn-winter of 2016 and 2017, in soilless in a protected environment. After transplantation, the fresh and dry matter of leaves and shoots were weighed every seven days. These dependent variables were fit using the accumulated thermal sum. The parameters of the Gompertz and Logistic models were estimated, the assumptions of the models were verified, the indicators of fit quality and critical points were calculated and the parametric and intrinsic curvature measures quantified. The Logistic and Gompertz models presented a satisfactory adjustment for the fresh and dry matter of leaves and the fresh and dry matter of shoots, for the lettuce cultivars Gloriosa, Pira Verde and Stella, in autumn-winter. The Logistic model best describes the growth of the lettuce cultivars.

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Aluminum toxicity reduces the nutritional efficiency of macronutrients and micronutrients in sugarcane seedlings

Ciência e Agrotecnologia ◽

10.1590/1413-7054202044015120 ◽

2020 ◽

Vol 44 ◽

Author(s):

Carolina Eggers Borges ◽

Jairo Osvaldo Cazetta ◽

Francisco Bruno Ferreira de Sousa ◽

Kamilla Silva Oliveira

Keyword(s):

Root System ◽

Aerial Part ◽

Dry Matter ◽

Aluminum Toxicity ◽

Mineral Nutrients ◽

Nutrient Accumulation ◽

Randomized Design ◽

Matter Production ◽

Use Efficiency ◽

Completely Randomized Design

ABSTRACT Although the effects of aluminum on the content and accumulation of mineral nutrients in crops have been studied, but nothing is known about its effect on the nutritional efficiency of sugarcane. Therefore, this study aimed to evaluate the effect of aluminum toxicity on nutritional efficiency, nutrient accumulation, and growth of sugarcane seedling. Sugarcane seedlings of the genotype IACSP95-5000, obtained from one-bud mini-cuttings (3 cm), were used in the test. Seedlings were subjected to treatments in a completely randomized design, with eight Al concentrations in the nutrient solution (0, 10, 20, 30, 40, 50, 60, and 70 mg L−1) and three replicates, totaling 24 experimental units. Analyses determined the contents, accumulation, and absorption, transport, and use efficiency of macronutrients, micronutrients, and aluminum, in addition to dry matter production. The results show that Al affected all variables analyzed, with a decrease in the nutritional efficiency of macronutrients and micronutrients and a drastic decrease in the accumulation of macronutrients in the aerial part, which reflected in the decrease in the dry matter of the plants. The root system was the most affected, with a decrease in growth of up to 60%. Aluminum reduced the use efficiency of nutrient in decreasing order: Ca (69%)> N (60%)> K (59%)> Mg (50%)> S (49%)> P (40%). As for micronutrients, the following decreasing order was observed: Fe (73%)> Zn (59%) = Cu (59%)> Mn (25%).

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USE OF RHIZOBIUMBACTERIA TO INCREASE THE PRODUCTION OF FIVE TROPICAL LEGUMES WITH FORAGE POTENTIAL

International Journal of Advanced Research ◽

10.21474/ijar01/13783 ◽

2021 ◽

Vol 9 (11) ◽

pp. 617-624

Author(s):

Sosa-Rubio Edgar Enrique ◽

◽

Herrera-Cool Gilbert Jose ◽

Zavaleta-Cordova Maria Del Carmen ◽

Montoya-Reyes Francisco ◽

...

Keyword(s):

Plant Height ◽

Aerial Part ◽

Dry Matter ◽

Low Cost ◽

Forage Production ◽

Forage Legumes ◽

Randomized Design ◽

Rhizobium Strains ◽

Tropical Legumes ◽

Completely Randomized Design

The objective of the work was to evaluate the effect of the application of Rhizobium bacteria in the biomass production of forage legumes. Rhizobiumstrains were isolated and selected from the rhizosphere of five forage species. Characterization and subsequent cultivation were carried out to inoculate plants in a greenhouse. Subsequently, the biofertilizer was prepared to apply it to five forage legumes: C. ternatea, L. leucocephala, C. macrocarpum, M. pruriens and C. cajan. Plants were germinated in petri dishes and on substrate, after 10 days of germination, they were transplanted into Leonards Jugs and watered with distilled water. The plants were placed in a completely randomized design with three replicates. The evaluations were carried out every week measuring plant heightand at the end of the experiment root weigh, dry matter of aerial part and radicular volume. The best values obtained were in M. pruriens which showed from 49 to 50 cm of plant height. For cross inoculation in weight variable was observed that the strains from C. ternatea and L. leucocephala showed the best results with 0.22 and 0.25 g/plant respectively. Although the best data of dry matter of aerial part was observed in L. leucocephalawith 0.40 g, better response of Radicular volume and plant height was observed in strains that came from C. ternatea with 2 mL and 7 cm respectively. In this study it can be conclude that the use of biofertilizers can be an alternative for low-cost forage production, as long as it contains Rhizobium strains capable of associating with legumes and fixing atmospheric nitrogen.

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GROWTH AND MINERAL NUTRITION IN SEEDLINGS OF JACARANDÁ-DA-BAHIA SUBJECTED TO NUTRIENT DEPRIVATION

FLORESTA ◽

10.5380/rf.v45i1.34312 ◽

2014 ◽

Vol 45 (1) ◽

pp. 107 ◽

Cited By ~ 2

Author(s):

Leandro Carlos ◽

Nelson Venturin ◽

Elias De Sá Farias ◽

Regis Pereira Venturin ◽

Renato Luiz Grisi Macedo

Keyword(s):

Aerial Part ◽

Dry Matter ◽

Nutrient Deprivation ◽

Nutritional Requirements ◽

Limiting Factor ◽

Randomized Design ◽

Complete Treatment ◽

Dalbergia Nigra ◽

And Control ◽

Missing Element

AbstractWith the objective of evaluating the nutritional requirements and the effects of nutrient deprivation in developing of Jacarandá da Bahia seedlings (Dalbergia nigra (Vellozo) Freire Allemao ex Bentham), a greenhouse experiment was conducted. The experiment had fully randomized design, with 12 treatments and 8 replications. The following treatments were applied: Complete 1 (C1-fertilized with N, P, K, S, B, Cu, Zn and liming as Ca and Mg sources), complete 2 (Complete 1 – liming with CaSO4.2H2O and MgSO4.7H2O as Ca and Mg sources), C1-N, C1-P, C1-K, C1-S, C1-B, C1-Zn, C1-liming, C2-Ca, C2-Mg and control. Diameter and height were measured and plants were separated into aerial part and root system. Samples were dried, weighed and levels of nutrients in the aerial dry matter were measured. Phosphorus was the most growth limiting factor, the sequence of nutritional requirements presented by Jacarandá da Bahia seedlings in relation to the complete treatment was: P > Ca > B > K > S > Zn > Mg > N.Keywords: Missing element; Dalbergia nigra; rainforest; hardwood. ResumoCrescimento e nutrição mineral de mudas de jacarandá-da-bahia sob efeito da omissão de nutrientes. Com o objetivo de avaliar exigências nutricionais e os efeitos da omissão de nutrientes no desenvolvimento de mudas de Jacarandá da Bahia (Dalbergia nigra (Vellozo) Freire Allemao ex Bentham), conduziu-se um experimento com o uso da técnica de elemento faltante. Foram empregados 12 tratamentos, em um delineamento inteiramente casualizado com oito repetições. Adotaram-se os seguintes tratamentos: Completo 1 (adubado com N, P, K, S, B, Cu, Zn e calagem como fonte de Ca e Mg e corrigindo acidez do solo), completo 2 (completo 1 – calagem tendo CaSO4.2H2O e MgSO4.7H2O como fontes de Ca e Mg sem corrigir acidez do solo), C1-N, C1-P, C1-K, C1-S, C1-B, C1-Zn, C1-calagem, C2-Ca, C2-Mg e testemunha. Foram medidos diâmetro e altura das plantas e separadas em parte aérea e sistema radicular. As mudas foram secas, pesadas e foram determinados os teores de nutrientes na matéria seca da parte aérea. O fósforo foi o nutriente mais limitante ao crescimento de jacarandá da Bahia; a sequência de exigência nutricional apresentada pelas mudas de Jacarandá da Bahia em relação ao tratamento completo em ordem decrescente foi: P > Ca > B > K > S > Zn > Mg > N.Palavras-chave: Elemento faltante; Dalbergia nigra; Mata Atlântica; Madeira nobre.

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SOLUÇÕES NUTRITIVAS NO DESENVOLVIMENTO DO CRISÂNTEMO CULTIVADO EM VASO

Irriga ◽

10.15809/irriga.2009v14n2p205-219 ◽

2009 ◽

Vol 14 (2) ◽

pp. 205-219 ◽

Cited By ~ 3

Author(s):

Márkilla Zunete Beckmann-Cavalcante ◽

Kathia Fernandes Lopes Pivetta ◽

Ítalo Herbert Lucena Cavalcante ◽

Lourival Ferreira Cavalcante ◽

Paulo Affonso Bellingieri

Keyword(s):

Leaf Area ◽

Aerial Part ◽

Dry Matter ◽

Block Design ◽

Stem Diameter ◽

Dendranthema Grandiflora ◽

Randomized Block Design ◽

Physiological Indexes ◽

Number Of Leaves ◽

Accelerated Growth

SOLUÇÕES NUTRITIVAS NO DESENVOLVIMENTO DO CRISÂNTEMO CULTIVADO EM VASO Márkilla Zunete Beckmann-Cavalcante1,2; Kathia Fernandes Lopes Pivetta2; Ítalo Herbert Lucena Cavalcante1; Lourival Ferreira Cavalcante3; Paulo Affonso Bellingieri41 Engenharia Agronômica, Campus Profa. Cinobelina Elvas, Universidade Federal do Piauí, Bom Jesus, PI, [email protected] 2 Departamento de Produção Vegetal, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Jaboticabal, SP.3 Departamento de Solos e Engenharia Rural, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, PB.4 Departamento de Tecnologia, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Jaboticabal, SP. 1 RESUMO Devido às informações sobre a solução nutritiva mais adequada ao cultivo de crisântemo de vaso ainda serem incongruentes, objetivou-se avaliar diferentes soluções nutritivas sobre o desenvolvimento do crisântemo cv. Miramar cultivado em vaso na FCAV-UNESP, Jaboticabal-SP. O experimento foi conduzido em blocos casualizados com avaliação em parcelas subdivididas no tempo, com os tratamentos correspondentes a quatro diferentes soluções nutritivas compostas de fertilizantes comerciais (S1, S2, S3 e S4) e avaliadas em seis épocas (0, 14, 28, 42, 56 e 70 dias após enraizamento - DAE), com cinco repetições. Foram avaliados a altura de plantas; área foliar; número de folhas; diâmetro de haste; massa seca de parte aérea, raízes e total; número e o diâmetro de inflorescências; e, os índices fisiológicos da análise de crescimento. As soluções nutritivas não interferiram significativamente no diâmetro de haste, número e diâmetro de inflorescências e massa seca de raízes. Entretanto, S3 e S4 promoveram a maior altura de plantas, área foliar, número de folhas, massa seca da parte aérea e total. A partir dos índices fisiológicos, observou-se que as plantas apresentaram um crescimento vegetativo acelerado dos 14 aos 28 DAE, destacando-se as soluções S3 e S4. UNITERMOS: Dendranthema grandiflora Tzvelev., índices fisiológicos, nutrição mineral. BECKMANN-CAVALCANTE, M. Z.; PIVETTA, K. F. L.; CAVALCANTE, Í. H. L.; CAVALCANTE, L. F.; BELLINGIERI, P. A. NUTRITIVE SOLUTIONS FOR DEVELOPMENT OF POTTED CHRYSANTHEMUM 2 ABSTRACT Although the information about nutritive solution for potted chrysanthemum is still incongruent, the objective of this work was to evaluate the effect of nutritive solutions in the development ofMiramarchrysanthemum cultivated in pots at FCAV-UNESP, Jaboticabal-SP. The experiment had a randomized block design with split-plot evaluation and treatments corresponding to four nutritive solutions consisting of commercial fertilizers (S1, S2, S3, S4) evaluated at 0, 14, 28, 42, 56 and 70 days after rooting (DAE), with five replications. The plant height, leaf area, number of leaves, stem diameter, total dry matter mass of aerial part and roots; number and diameter of inflorescences, and physiological indexes of growth analysis were evaluated. The nutritive solutions did not interfere significantly in stem diameter, number and diameter of inflorescences and dry matter of roots, although S3 and S4 provided the highest plants, leaf area, number of leaves, total dry matter of aerial part. The physiological indexes showed that plants presented an accelerated growth from 14 to 28 DAE with S4 and S3 solutions and therefore they were considered the best solutions. KEYWORDS: Dendranthema grandiflora Tzvelev., physiological indexes, mineral nutrition.

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