scholarly journals Aplicación de la fitorremediación en suelos contaminados por metales pesados utilizando Helianthus annuss L. en la Estación Experimental El Mantaro

2022 ◽  
Vol 9 (1) ◽  
pp. 31-45
Author(s):  
Flor de Maria Peña Rivera ◽  
Enrique Beltrán Lázaro

El presente trabajo de investigación titulado “APLICACION DE LA FITORREMEDIACION EN SUELOS CONTAMINADOS POR METALES PESADOS UTILIZANDO Helianthus annuss L. en la Estación Experimental agropecuario El Mantaro, consta de haber utilizado Helianthus annuss L, la cual ha sido instalado en 03 lotes (A, B, y C) de la estación experimental EL MANTARO”, de la UNCP, para descontaminar los suelos contaminados por metales pesados (cobre, cadmio, cromo, hierro, manganeso, plomo , y metaloides antimonio y arsénico para ello se tomaron muestras de suelos en tres etapas diferentes, antes del cultivo, en el cultivo y después de la cosecha; para el análisis de suelos se utilizó el método analítico instrumental de ICP-Masas, analizados en el Laboratorio Certificado por la Indecopi  J. Ramon: Los resultados de la concentración de metales pesados en el lote A son: Sb(7,00 ppm), As(48,3ppm),  Cd(4,28ppm), Cu (60,0ppm), Cr (10,00 ppm), Fe (13 865.00 ppm), Mn (1 082 ppm), Pb ( 111,5 ppm), y Zn (777,9  ppm). Los resultados de la concentración de metales pesados en el lote B son: Sb (11,0 0ppm), As (32,50), Cd  (3,99 ppm), Cu (38,5- 24,7 ppm), Cr (10,4 ppm), Fe (17 002.00 ppm), Mn (969,2 ppm), Pb (54,5 ppm), y Zn(554,7  ppm). Los resultados de la concentración de metales pesados en el lote C son: Sb (6,00 ppm), As (26,0 ppm), Cd(3,03 ppm), Cu(33,2 ppm), Cr(10,3 ppm), Fe(18 285,00 ppm), Mn( 739,9 ppm), Pb (44,2 ppm), y Zn (426,1)  y después de la cosecha de la planta los resultados fueron los siguientes: Lote A Sb(5,00 ppm), As (25,Cd (2,19  ppm),Cu (29,6ppm), Cr (5,1ppm), Fe (6 114,00 ppm), Mn (722,1 ppm),Pb (60,07 ppm), y Zn(314,8ppm) para el  lote B: Sb (7,00ppm), As (14,8 ppm), Cd (2,59 ), Cu (24,7 ppm), Cr (6,00 ppm), Fe (9780,00 ppm), Mn (699,5  ppm), Pb (39,1ppm), y Zn (352,4 ppm). Y lote C son: Sb (5,00 ppm), As (18,6 ppm), Cd (3,11 ppm), Cu (29,6 ppm),   Cr (5,8 ppm), Fe (11 126 ppm), Mn (671,4 ppm), Pb (43,6 ppm), y Zn (405,7). Los resultados de la caracterización   fisicoquímica del suelo contaminado, fue analizado en la Universidad Agraria La Molina nos reportó: pH 6,93,  Conductividad eléctrica 0,58, Porcentaje de carbonato 6,0, Porcentaje de Materia Orgánica 3,31, Capacidad de  intercambio catiónico 15,78 y la Textura. Suelo Franco. La concentración de metales pesados fitoextraída por el  Helianthus annuus L. fue analizado en Certificaciones del Perú, Laboratorio, el método utilizado fue el ICP-Masas y  son: Raíz: Sb (2.00 ppm), As (10.27), Cd (2.61 ppm ), Cu (18,97 ppm), Cr (2,735 ppm), Fe (3 519,0 ppm), Mn  (204,88 ppm), Pb (17,45 ppm), y Zn (298,3) Hoja: Cd (1,72 ppm), Cu (29,22 ppm), Fe (256,85 ppm), Mn (129,435  ppm), Pb (0,899 ppm), y Zn ( 94,93).Tallo: Cu (5,582 ppm), Fe (276,05 ppm), Mn (32,135 ppm), Pb (0,3685 ppm),  y Zn (100,135 ppm) Flor: Cu (43,90 ppm), Cr (10,23 ppm), Fe (9006,67 ppm), Mn (705,53 ppm), Pb (47,87 ppm),   y Zn. Semilla: no se reporta concentración de metales pesados con excepción del Cd (0,228 ppm).

2018 ◽  
Vol 53 (3) ◽  
pp. 485-498
Author(s):  
G.P. Kononenko ◽  
◽  
M.I. Ustyuzhanina ◽  
A.A. Burkin ◽  
◽  
...  

2014 ◽  
Vol 2014 (2) ◽  
pp. 83-91
Author(s):  
Alfredo Garcia-Perez ◽  
◽  
Mark Harrison ◽  
Bill Grant ◽  
◽  
...  

Helia ◽  
2000 ◽  
Vol 23 (33) ◽  
pp. 97-104
Author(s):  
F.M. Khalifa ◽  
A.A. Schneiter ◽  
E.I. El Tayeb

SUMMARY Seed germination of six sunflower (Helianthus annuus L.) hybrids was investigated across a range of eleven constant temperatures between 5°C and 45°C. Large temperature differences in germination rate 1/t (d-1), cardinal temperature (°C) and thermal time θ (°cd) were observed among hybrids. Base temperatures (Tb) varied between 3.3°C and 6.7°C whereas maximum germination temperatures (Tm) varied between 41.7°C and 48.9°C. Final germination fraction was attained at 15°C - 25°C whereas the maximum rate of germination was attained at 30.4°C - 35.6°C. The maximum germination rate of hybrid USDA 894, the cultivar with the slowest germination rate, was only 50% of that of hybrid EX 47. The low Tb and high Tm of sunflower appear to be one of the factors which explain the successful adaptation of sunflower to a wide range of temperature. These findings are discussed in relation to the origin of the crop and its wide adaptations in diverse habitats and climatic zones.


Helia ◽  
2001 ◽  
Vol 24 (35) ◽  
pp. 101-110 ◽  
Author(s):  
S. Sridhara ◽  
T.G. Prasad

SUMMARYA field experiment was conducted at Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bangalore to study the effect of irrigation regimens on the biomass accumulation, canopy development, light interception and radiation use efficiency of sunflower. The treatments includes irrigating the plants at 0.4, 0.6, 0.8 and 1.0 cumulative pan evaporation. The results indicated that the aboveground biomass, canopy development, radiation interception and radiation use efficiency were influenced favorably by the irrigation regimens. Irrespective of the irrigation regimen, the radiation use efficiency of sunflower increased from 15 DAS to 75 DAS and then tended to decline. The decrease in RUE after anthesis is coupled with decrease in leaf nitrogen content. In general the RUE of sunflower ranged from 0.49 g MJ-1 to 1.84 g MJ-1 at different growth stages. The light transmission within the canopy increased exponentially with plant height and the canopy extension coefficient is found to be 0.8.


Helia ◽  
2020 ◽  
Vol 43 (73) ◽  
pp. 185-189
Author(s):  
Michail Christov ◽  
Miroslava Hristova-Cherbadzhi

AbstractNew traits that are useful for the cultivated sunflower can be received by applying classical breeding methods. A new form sunflower that is resistant to herbicides Pulsar and Express was obtained by hybridization between the sunflower mutant M-95-674 and the line HA 425. Test results from the period 2017–2019 confirm the resistance to both herbicides. This resistance can be transferred into other classical selected lines.


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