Müller FL^1,2, LF Cyster¹, LM Raitt¹, J Aalbers¹

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 461-465, 2015, DOI:10.32604/phyton.2015.84.461

Abstract An increase in bioavailable tin in the environment could result in bioaccumulation thereof in agricultural crops, and therefore, have adverse health consequences on humans that eat these crops. The aims of the current study were thus to assess the uptake of Sn by spinach plants, and the subsequent effects this will have on the uptake of Na, Zn, K, Ca, and Mg as well as the growth of spinach plants. Spinach plants were grown in sand culture and received tin at concentrations of 0.02, 0.2, 2 and 20 mg/L along with a nutrient solution. The uptake of tin at detectible… More >

Yescas CP¹, MA Segura C¹, L Martínez C², VP Álvarez R¹, JA Montemayor T¹, JA Orozco V¹, JE Frías R¹

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 272-279, 2015, DOI:10.32604/phyton.2015.84.272

Abstract The scarcity of water in arid and semiarid regions of the world is a problem that every day increases by climate change. The subsurface drip irrigation (SDI) and changes in population density of plants are alternatives that can be used to make a sustainable use of water. Therefore, the objectives of this study were to determine the combination that allows for an increased corn performance and efficient use of water without losing the quality of forage. Three different irrigation levels were applied through a system of a SDI at three different densities of forage maize plants in an arid region.… More >

Lira-Saldivar RH¹, A Hernández¹, LA Valdez², A Cárdenas¹, L Ibarra¹, M Hernández³, N Ruiz⁴

Phyton-International Journal of Experimental Botany, Vol.83, pp. 133-138, 2014, DOI:10.32604/phyton.2014.83.133

Abstract The response of cherry tomato to biofertilization with beneficial microorganisms was evaluated under shadehouse conditions. Seeds were inoculated and/or co-inoculated with Azospirillum brasilense (Az) and/or Glomus intraradices (Gi). Thereafter, seedlings of six treatments received two applications of a suspension containing Az + Gi at 15 and 30 days after the transplant, and were compared against a non-inoculated treatment which only received conventional inorganic fertilization. Seed co-inoculation with A. brasilense and G. intraradices plus two applications of Az + Gi at 15 and 30 days after transplant increased on average 6% plant height, 11% leaf area, 10.5% dry biomass and 16%… More >

Ferrante D^1,2, A Cesa^1,2, S Lewis², G Jaurena³

Phyton-International Journal of Experimental Botany, Vol.83, pp. 127-131, 2014, DOI:10.32604/phyton.2014.83.127

Abstract In plants, compensatory growth takes place when the positive effects of defoliation compensate the negative ones, and defoliated plants show a similar or increased production in relation to non-defoliated plants. Our objective was to evaluate the ability to compensate defoliation of Poa spiciformis, a forage perennial tussock grass in southern Patagonia (Argentina). The experiment was performed in potted plants that grew under controlled conditions of watering and fertilization. Three defoliation frequencies were imposed (zero, three or five) using 20-25 day intervals among them. Harvest intensity was always equivalent to 50% of the aerial biomass. Fifteen plants were sampled per treatment,… More >

Pérez Castañeda LM, MA Cruz Hernández, A Mendoza Herrera

Phyton-International Journal of Experimental Botany, Vol.80, pp. 27-34, 2011, DOI:10.32604/phyton.2011.80.027

Abstract Various studies have shown the symbiotic association of Azospirillum brasilense with different grasses of nutritional importance. A high variability among the isolated strains has been observed. This is consistent with the genetic diversity that Azospirillum has shown in sugarcane isolates. However, if this is also the case in maize and sorghum isolates is unknown. In addition, it has also been reported that most of the isolates come from tropical regions where water is not limiting for maize and sorghum production. We analyzed the genetic variability of Azospirillum brasilense isolates obtained from arid zones of Northeast Mexico in maize and sorghum.… More >

Cerna¹ E, Y Ochoa², R Mendoza¹, MH Badii³, G Gallegos¹, J Landeros¹

Phyton-International Journal of Experimental Botany, Vol.79, pp. 147-152, 2010, DOI:10.32604/phyton.2010.79.147

Abstract Protein assays were conducted on Tetranychus urticae Koch, as potential resistance detection tools to plaguicides. This is a phytophagous mite that feeds on a large variety of plants. Experiments were carried out using a pesticide susceptible and three field crop strains of T. urticae. Protein was measured by colorimetric assays, using Kit-II from Bio-Rad, with bovine serum albumin (BSA) as standard. Homogenates were prepared using 10, 30, 50, 100, 300, 500 and 800 mites, with 30 replicates each. Linearity was obtained for the standard curve of the different methods, and r² values ranged from 0.877 to 0.985. The Bradford method… More >

Abrameto MA, CM Pozzo Ardizzi, MI Gil, LM Molina

Phyton-International Journal of Experimental Botany, Vol.79, pp. 123-132, 2010, DOI:10.32604/phyton.2010.79.123

Abstract Costly investments in storage and transport of onion bulbs makes it increasingly important to identify cultivars with the best chance of long-term storage. This paper discusses our own and other researchers’ results and laboratory procedures on onion’s pungency, soluble solids, dry matter, respiration rate, carbohydrates and catabolism-related enzymes under different storage conditions. The variability in parameters such as carbohydrate composition, pungency, soluble solids and soluble uronic acid concentration in water is growth dependent, and defines the quality of onion bulbs at harvest time. During storage, these parameters can be modified by environmental conditions, presence of pathogens or termination of dormancy.… More >

Cargnel MD¹, AL Orchansky², RE Brevedan², SS Baioni², MN Fioretti²

Phyton-International Journal of Experimental Botany, Vol.86, pp. 181-189, 2017, DOI:10.32604/phyton.2017.86.181

Abstract Two field experiments were carried out in a semiarid region of Argentina over a soybean (Glycine max L. Merrill) field. The sites of study were San Adolfo (39˚ 23’ S, 62˚ 22’ W, 22 m.a.s.l.) and Nueva Roma (38˚ 29’ S, 62˚ 39’ W, 70 m.a.s.l.). Soybeans were planted on Jan 4 (San Adolfo) and Nov 27 (Nueva Roma) in 0.75 m wide rows and at 400000 pl/ha during two consecutive growing seasons. Energy balance and evapotranspiration (ET) were estimated during the reproductive stages from full bloom (R2) to full maturity (R8). In Nueva Roma ET or latent heat flux… More >

Huilong Ren¹, Xiaoying Zhuang^2,3,*, Timon Rabczuk¹

CMES-Computer Modeling in Engineering & Sciences, Vol.121, No.2, pp. 353-383, 2019, DOI:10.32604/cmes.2019.05146

Abstract A dual-support smoothed particle hydrodynamics (DS-SPH) that allows variable smoothing lengths while satisfying the conservations of linear momentum, angular momentum and energy is developed. The present DS-SPH is inspired by the dual-support, a concept introduced from dual-horizon peridynamics from the authors and applied here to SPH so that the unbalanced interactions between the particles with different smoothing lengths can be correctly considered and computed. Conventionally, the SPH formulation employs either the influence domain or the support domain. The concept of dual-support identifies that the influence domain and the support domain involves the duality and should be simultaneously in the SPH… More >

Xuting Duan^1,2,3, Jingyi Wei^1,2,3, Daxin Tian^1,2,3,*, Jianshan Zhou^1,2,3,4, Haiying Xia⁵, Xin Li⁶, Kunxian Zheng^1,2,3

CMC-Computers, Materials & Continua, Vol.61, No.3, pp. 1117-1128, 2019, DOI:10.32604/cmc.2019.05578

Abstract In vehicle ad-hoc networks (VANETs), the proliferation of wireless communication will give rise to the heterogeneous access environment where network selection becomes significant. Motivated by the self-adaptive paradigm of cellular attractors, this paper regards an individual communication as a cell, so that we can apply the revised attractor selection model to induce each connected vehicle. Aiming at improving the Quality of Service (QoS), we presented the bio-inspired handover decision-making mechanism. In addition, we employ the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) for any vehicle to choose an access network. This paper proposes a novel framework… More >