Effect of explant and picloram on embryogenic callus formation in 'Blanco de Guinea' yam/Efecto del explante y el picloram en la formacion de callos embriogenicos en name , var. 'Blanco de Guinea'

The shortage of planting material of physiological and sanitary quality continues to limit the large-scale production of yam cultivation since the tubers, which constitute the useful part of the plant for food, also have to be used as planting plant material. The work was developed with the objectiv...

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Veröffentlicht in:Cultivos tropicales 2022-10, Vol.43 (4), p.1
Hauptverfasser: Hernandez-Jerez, Yanet, Perez-Perez, Jorge Liusvert, Silva-Pupo, Juan Jose
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Silva-Pupo, Juan Jose
description The shortage of planting material of physiological and sanitary quality continues to limit the large-scale production of yam cultivation since the tubers, which constitute the useful part of the plant for food, also have to be used as planting plant material. The work was developed with the objective of evaluating the explant type effect and the concentration of picloram in the formation of embryogenic callus in Dioscorea cayenensis subsp rotundata cultivar Blanco de Guinea. Nodal segments, immature leaf and root segments from in vitro plants were taken as explants. The culture medium for callus formation contained the DM salts and different concentrations of Picloram (0; 0.5; 1.0; 1.5; 2.0 mg [L.sup.-1]). The callus formation percentage was determined for each type of explant, the color and consistency of the callus. It was achieved with the use of 2.0 mg [L.sup.-1] of Picloram, 80% of nodal segments with embryogenic callus formation, yellowish-brown in color, compact and friable. Keywords: auxins, tissue culture, Dioscorea, in vitro. La escasez de material vegetal de plantacion con calidad fisiologica y sanitaria continua limitando la produccion a gran escala del cultivo del name ya que los tuberculos, que constituyen la parte util de la planta para la alimentacion, tambien tienen que ser utilizados como material vegetal de plantacion. El trabajo se desarrollo con el objetivo de evaluar el efecto del tipo de explante y la concentracion de Picloram en la formacion de callos embriogenicos en Dioscorea cayenensis subsp rotundata var. 'Blanco de Guinea'. Se tomaron como explantes, segmentos nodales, hojas inmaduras y segmentos de raices provenientes de plantas in vitro. El medio de cultivo para la formacion de callos contenia las sales MS y diferentes concentraciones de Picloram (0; 0,5; 1,0; 1,5; 2,0 mg [L.sup.-1]). Se determino el porcentaje de formacion de callos para cada tipo de explante, el color y consistencia de los callos. Se alcanzo con empleo de 2,0 mg [L.sup.-1] de Picloram, un 80 % de segmentos nodales con formacion de callos embriogenicos, de color pardo-amarillento, consistencia compacta y friables. Palabras clave: auxinas, cultivo de tejidos, Dioscorea, in vitro.
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The culture medium for callus formation contained the DM salts and different concentrations of Picloram (0; 0.5; 1.0; 1.5; 2.0 mg [L.sup.-1]). The callus formation percentage was determined for each type of explant, the color and consistency of the callus. It was achieved with the use of 2.0 mg [L.sup.-1] of Picloram, 80% of nodal segments with embryogenic callus formation, yellowish-brown in color, compact and friable. Keywords: auxins, tissue culture, Dioscorea, in vitro. La escasez de material vegetal de plantacion con calidad fisiologica y sanitaria continua limitando la produccion a gran escala del cultivo del name ya que los tuberculos, que constituyen la parte util de la planta para la alimentacion, tambien tienen que ser utilizados como material vegetal de plantacion. El trabajo se desarrollo con el objetivo de evaluar el efecto del tipo de explante y la concentracion de Picloram en la formacion de callos embriogenicos en Dioscorea cayenensis subsp rotundata var. 'Blanco de Guinea'. Se tomaron como explantes, segmentos nodales, hojas inmaduras y segmentos de raices provenientes de plantas in vitro. El medio de cultivo para la formacion de callos contenia las sales MS y diferentes concentraciones de Picloram (0; 0,5; 1,0; 1,5; 2,0 mg [L.sup.-1]). Se determino el porcentaje de formacion de callos para cada tipo de explante, el color y consistencia de los callos. Se alcanzo con empleo de 2,0 mg [L.sup.-1] de Picloram, un 80 % de segmentos nodales con formacion de callos embriogenicos, de color pardo-amarillento, consistencia compacta y friables. 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'Blanco de Guinea'</title><title>Cultivos tropicales</title><description>The shortage of planting material of physiological and sanitary quality continues to limit the large-scale production of yam cultivation since the tubers, which constitute the useful part of the plant for food, also have to be used as planting plant material. The work was developed with the objective of evaluating the explant type effect and the concentration of picloram in the formation of embryogenic callus in Dioscorea cayenensis subsp rotundata cultivar Blanco de Guinea. Nodal segments, immature leaf and root segments from in vitro plants were taken as explants. The culture medium for callus formation contained the DM salts and different concentrations of Picloram (0; 0.5; 1.0; 1.5; 2.0 mg [L.sup.-1]). The callus formation percentage was determined for each type of explant, the color and consistency of the callus. It was achieved with the use of 2.0 mg [L.sup.-1] of Picloram, 80% of nodal segments with embryogenic callus formation, yellowish-brown in color, compact and friable. Keywords: auxins, tissue culture, Dioscorea, in vitro. La escasez de material vegetal de plantacion con calidad fisiologica y sanitaria continua limitando la produccion a gran escala del cultivo del name ya que los tuberculos, que constituyen la parte util de la planta para la alimentacion, tambien tienen que ser utilizados como material vegetal de plantacion. El trabajo se desarrollo con el objetivo de evaluar el efecto del tipo de explante y la concentracion de Picloram en la formacion de callos embriogenicos en Dioscorea cayenensis subsp rotundata var. 'Blanco de Guinea'. Se tomaron como explantes, segmentos nodales, hojas inmaduras y segmentos de raices provenientes de plantas in vitro. El medio de cultivo para la formacion de callos contenia las sales MS y diferentes concentraciones de Picloram (0; 0,5; 1,0; 1,5; 2,0 mg [L.sup.-1]). Se determino el porcentaje de formacion de callos para cada tipo de explante, el color y consistencia de los callos. Se alcanzo con empleo de 2,0 mg [L.sup.-1] de Picloram, un 80 % de segmentos nodales con formacion de callos embriogenicos, de color pardo-amarillento, consistencia compacta y friables. 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'Blanco de Guinea'</atitle><jtitle>Cultivos tropicales</jtitle><date>2022-10-01</date><risdate>2022</risdate><volume>43</volume><issue>4</issue><spage>1</spage><pages>1-</pages><issn>0258-5936</issn><abstract>The shortage of planting material of physiological and sanitary quality continues to limit the large-scale production of yam cultivation since the tubers, which constitute the useful part of the plant for food, also have to be used as planting plant material. The work was developed with the objective of evaluating the explant type effect and the concentration of picloram in the formation of embryogenic callus in Dioscorea cayenensis subsp rotundata cultivar Blanco de Guinea. Nodal segments, immature leaf and root segments from in vitro plants were taken as explants. The culture medium for callus formation contained the DM salts and different concentrations of Picloram (0; 0.5; 1.0; 1.5; 2.0 mg [L.sup.-1]). The callus formation percentage was determined for each type of explant, the color and consistency of the callus. It was achieved with the use of 2.0 mg [L.sup.-1] of Picloram, 80% of nodal segments with embryogenic callus formation, yellowish-brown in color, compact and friable. Keywords: auxins, tissue culture, Dioscorea, in vitro. La escasez de material vegetal de plantacion con calidad fisiologica y sanitaria continua limitando la produccion a gran escala del cultivo del name ya que los tuberculos, que constituyen la parte util de la planta para la alimentacion, tambien tienen que ser utilizados como material vegetal de plantacion. El trabajo se desarrollo con el objetivo de evaluar el efecto del tipo de explante y la concentracion de Picloram en la formacion de callos embriogenicos en Dioscorea cayenensis subsp rotundata var. 'Blanco de Guinea'. Se tomaron como explantes, segmentos nodales, hojas inmaduras y segmentos de raices provenientes de plantas in vitro. El medio de cultivo para la formacion de callos contenia las sales MS y diferentes concentraciones de Picloram (0; 0,5; 1,0; 1,5; 2,0 mg [L.sup.-1]). Se determino el porcentaje de formacion de callos para cada tipo de explante, el color y consistencia de los callos. Se alcanzo con empleo de 2,0 mg [L.sup.-1] de Picloram, un 80 % de segmentos nodales con formacion de callos embriogenicos, de color pardo-amarillento, consistencia compacta y friables. Palabras clave: auxinas, cultivo de tejidos, Dioscorea, in vitro.</abstract><pub>Editorial Universitaria de la Republica de Cuba</pub></addata></record>
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title Effect of explant and picloram on embryogenic callus formation in 'Blanco de Guinea' yam/Efecto del explante y el picloram en la formacion de callos embriogenicos en name , var. 'Blanco de Guinea'
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