Márquez-Hernández C¹, P Cano-Ríos², U Figueroa-Viramontes³, JA Avila-Diaz⁴, N Rodríguez-Dimas², JL García-Hernández¹

Phyton-International Journal of Experimental Botany, Vol.82, pp. 55-61, 2013, DOI:10.32604/phyton.2013.82.055

Abstract The scarcity of fertilizers that are allowed in organic agriculture (AO) encourages the search for alternatives, being the use of compost one of the most outstanding. AO has been recognized as a more sustainable system than conventional agriculture. AO is ruled by strict norms which forbid the use of most common fertilizers. The aim of this study was to evaluate the effect of various fertilization treatments on the organic production of greenhousegrown tomato. A completely randomized experimental design with five replications was used, with a 5x2 factorial arrangement. Factors A and B were: a) fertilization… More >

Barocio-Ceja NB¹, LF Ceja-Torres^1*, JL Morales-García², HV Silva-Rojas³, R Flores-Magallón¹, S Ochoa-Estradav¹

Phyton-International Journal of Experimental Botany, Vol.82, pp. 15-22, 2013, DOI:10.32604/phyton.2013.82.015

Abstract The objectives of this study were to (1) isolate and identify pathogenic fungi from vegetative material with wilt symptoms in tomato plantations belonging to the Cienega of Chapala, Michoacán, Mexico, and (2) determine the antagonistic capacity of Trichoderma sp. and Aspergillus spp. isolated from chicken-manure vermicompost. Pathogens were isolated by means of a completely randomized sampling in 6 locations; 9 plantations were inspected and 45 plants with symptoms of the disease were selected. Portions of root and stem were disinfected and placed on potato-dextroseagar acidified (PDA). Antagonists isolation was made from a dilution of chicken-manure vermicompost… More >

Guan Z-J^1,2,*, B Guo^1,*, Y-L Huo³, J-K Dai⁴, Y-H Wei¹

Phyton-International Journal of Experimental Botany, Vol.81, pp. 51-58, 2012, DOI:10.32604/phyton.2012.81.051

Abstract The initiation and development of organogenic buds and somatic embryos in HBsAg-transgenic cherry tomato (Lycopersicum esculentum var. cerasiforme) mutant were studied histologically. The leaf explants of the mutant were cultured on Murashige & Skoog (MS) basal medium supplemented with 6-BA 1.0 mg/L and IAA 0.05 mg/L for callus induction. Histological studies on the leaf explants of the mutant at various developmental stages revealed that organogenic buds first appeared in the axillary position of explants on the 14th cultured day, and then somatic embryos formed in the same mutant explants after 35 days of culture. Transmission electron microscopy… More >

Gaspar-Peralta P¹, JC Carrillo-Rodríguez¹, JL Chávez-Servia, AM Vera-Guzmán², I Pérez-León¹

Phyton-International Journal of Experimental Botany, Vol.81, pp. 15-22, 2012, DOI:10.32604/phyton.2012.81.015

Abstract In order to evaluate the agronomic behavior, genotypic variation, lycopene content, and other components of fruit quality, eight advanced tomato lines were planted in greenhouses during two crop cycles, August-December 2008 and February-July 2009. Tomato lines showed significant differences in leaf length (LL), stem diameter (SD), number of flowers per branch (FLNB), number of fruits per branch (FRNB), locules per fruit (LPF), and fruit length (FRL), and the greatest phenotypic expression in fruit traits was quantified in August-December 2008. Environmental variance was significantly higher than the genotypic and genotype-environment interaction variances in LL, FRNB, fruits… More >

A. C. Michel-Aceves¹, J. F. Díaz-Nájera¹, R. Ariza-Flores², M. A. Otero-Sánchez¹, R. Escobar-Martínez¹ and C. H. Avendaño-Arrazate^3,*

Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 325-333, 2019, DOI:10.32604/phyton.2019.06777

Abstract In two tomato genotypes, we assessed control alternatives for damping-off with combinations of chemical fungicides and native/commercial strains of biological agents. Forty treatments consisting of 19 levels of mixing products, chemical fungicides, native strains and commercial products from biological control agents, and untreated treatment were used onto Ramsés and Toro hybrids. They were distributed on an incomplete block design in divided plots arrangement, where genotypes constitute the larger ones and the 8-repetition mixed products, the smaller ones. Putting 180 mL of fungal complexes, made of spores and mycellium Fusarium-solani (2 × 106 UFC), Rhizoctonia-solani (1… More >

Yonghua Zhou¹, Chao Mi¹, Xun Yang¹

CMES-Computer Modeling in Engineering & Sciences, Vol.86, No.6, pp. 533-550, 2012, DOI:10.3970/cmes.2012.086.533

Abstract The cellular automaton (CA) model for traffic flow describes the restrictive vehicle movements using the distance headway (gap) between two adjacent vehicles. However, the autonomous and synergistic behaviors also exist in the vehicle movements. This paper makes an attempt to propose a microscopic traffic simulation model such that the feedback control behavior during the driving process is incorporated into the CA model. The acceleration, speed holding and deceleration are manipulated by the difference between the gap and the braking reference distance the driver perceives, which is generally observed in the realistic traffic. The braking reference… More >

C.P. Hong¹, M.F. Zhu², S.Y. Lee¹

FDMP-Fluid Dynamics & Materials Processing, Vol.2, No.4, pp. 247-260, 2006, DOI:10.3970/fdmp.2006.002.247

Abstract In typical solidification processes the flow of molten metal is usually regarded as an unavoidable phenomenon potentially affecting the morphology of dendritic growth. Fundamental understanding of such flow is thus important for predicting and controlling solidification microstructures. This paper presents numerical simulations on the evolution of dendritic microstructures with melt convection. A two-dimensional modified cellular automaton (MCA) coupled with a transport model is developed to simulate solidification of binary and ternary alloys in the presence of fluid flow. This model takes into account the effects of the constitutional undercooling and curvature undercooling on the equilibrium More >

W.F.Yuan¹, K.H.Tan ¹

CMC-Computers, Materials & Continua, Vol.13, No.1, pp. 49-62, 2009, DOI:10.3970/cmc.2009.013.049

Abstract A simple cellular automaton (CA) scheme is proposed to simulate heat conduction in anisotropic domains. The CA is built on random nodes rather than an irregular grid. The local rule used in the CA is defined by physical concepts instead of differential equations. The accuracy of the proposed approach is verified by classical examples. As an application of the proposed method, the CA approach is incorporated into fibre model which is widely used in finite element analysis to calculate the temperature distribution on the cross-section of composite beams. Numerical examples demonstrate that the proposed scheme More >