Observations on the induction of second-growth in potato tubers

Lugt, C.; Bodlaender, K. B. A.; Goodijk, G.

doi:10.1007/bf02368253

Cited by 41 publications

(13 citation statements)

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“…Furthermore, Vreugdenhil & Struik (1989) found that tuber initiation needs the cessation of stolon growth, which is linked to ethylene synthesis. A delay of tuberization has been observed when the stolon environment did not provide mechanical stress (Lugt et al, 1964). This is so in aeroponic cultures, where roots grow in air without mechanical resistance.…”

Section: Discussionmentioning

confidence: 97%

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

et al. 2001

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SummaryTwo different cultivation systems, aeroponics and hydroponics in greenhouse beds, were compared for the production of potato minitubers. Plants in the aeroponic system showed increased vegetative growth, delayed tuber formation and an extended vegetative cycle of about seven months after transplanting. Therefore in 1999, two production cycles were obtained with the hydroponic system, but only one with the aeroponic system. However, compared with total production in hydroponics, the tuber yield per plant in the aeroponic system was almost 70% higher and tuber number more than 2.5 fold higher. Average tuber weight was reduced by 33% in the aeroponic system. Advantages and possible problems with the aeroponic system for minituber production are discussed.

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Section: Discussionmentioning

confidence: 97%

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

et al. 2001

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“…Secondary growth may be induced by any condition favoring vegetative growth Bodlaender et al 1964). As with sugar ends, temperature seems to be the most critical factor in development of malformations Lugt et al 1964;Ruf 1964). Short periods of drought stress have been shown to cause more malformation defects than continuous moisture stress.…”

Section: Physiological Mechanismsmentioning

confidence: 98%

Review Of The Sugar End Disorder In Potato (Solanum tuberosum, L.)

et al. 2008

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Processing quality has become increasingly important to the potato industry. A serious defect in product quality is the physiological disorder known as sugar ends, also referred to as dark ends, jelly ends, translucent ends, and/or glassy ends. Symptoms of the most common type of sugar end include relatively low starch and high sugar content in the basal end of the tuber. Tubers with the sugar end disorder produce French fries that are dark on one end, making the fries unacceptable to consumers. Sugar end potatoes cause time and profit losses at the processing plant and may require blending of loads to meet product specifications, along with the need to change processing protocols. Sugar end can be costly to growers if the tubers have insufficient quality and the crop is rejected for processing. Conditions conducive to the development of sugar ends include high soil temperatures, transitory soil moisture deficits, and insufficient or excess nitrogen fertilization. Tubers are most sensitive to these stresses during early bulking. Historically, several theories have been proposed concerning the mechanism of sugar end development. Research shows that stressed plants produce adequate amounts of assimilate to support continued tuber growth, but accumulate large amounts of sucrose in the basal tissues of the tuber immediately following stress. Accumulated evidence suggests that heat stress and water deficit induce changes in the activities of certain key carbohydrate metabolizing enzymes shifting the tuber from a starch synthesizing function to one of starch mobilization. Genetic resistance to sugar end development is known and the identified traits are highly heritable. This review summarizes sugar end investigations to-date, and presents a list of research-based crop management recommendations that assist potato producers in minimizing the potential for sugar end development in the field.Resumen La calidad de procesamiento de papa se ha vuelto cada vez más importante para la industria. Un defecto serio en la calidad del producto es el desorden fisiológico conocido como punta azucarada, referido también como punta oscura, punta translúcida y/o punta vítrea. Los síntomas de los tipos más comunes de punta azucarada incluyen bajo contenido relativo de almidón y alto contenido de azúcar en el extremo basal del tubérculo. Los tubérculos con punta azucarada producen papas fritas que tienen un extremo oscuro, haciendo la fritura inaceptable para los consumidores. Las papas con extremo azucarado causan pérdida de tiempo y ganancias a la planta procesadora y puede requerir la mezcla de lotes de papa para satisfacer las especificaciones del producto, además de de la necesidad de cambiar los protocolos de procesamiento. La punta azucarada Am. puede ser costosa para los productores si los tubérculos son de calidad insuficiente y el cultivo es rechazado para procesamiento. Las condiciones que conducen al desarrollo de este desorden incluyen altas temperaturas del suelo, deficiencia transitoria de agua e insuficiencia o exceso de ...

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“…Environmental factors promoting the secondary growth of tubers have been known for a long time (Lugt et al 1964), in contrast to the genetic components of this defect. Secondary growth is included among traits which would render tubers unmarketable and is intermittent in expression.…”

Section: Instabilitymentioning

confidence: 99%

Stability Analysis of Agronomic Traits in Potato Cultivars of Different Origin

et al. 2014

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Potato (Solanum tuberosum ssp. tuberosum) cultivars are expected to express a stable level for traits important for growers and consumers. To investigate how this expectation was met by a set of 21 cultivars bred in Hungary, Poland and Spain, 2-year field experiments were carried out in these countries for the evaluation of tuber yield, starch content and yield, and occurrence of secondary growth of tubers. Stability in an agronomic sense was evaluated by the analysis of genotype by environment interaction (GE) using the Scheffé-Caliński mixed model. Unstable trait expression was indicated by the statistically significant share of GE in the variability contributed by a specific cultivar. This instability could lead to either complete or partial unpredictability. Stable trait expression was observed for 6-11 cultivars, depending on the trait. A significant genetic factor, which indicates broad adaptation, was rarely found. Stable expression of tuber yield occurred together with stable or predictable expression of both starch content and yield. Unstable expressions of tuber and starch yield were also associated. The stability or instability of secondary growth was not associated with stability or instability of the other measured traits. Analysis of GE interaction was useful for identifying stable or unstable responses and revealed the presence of incomplete stability or partial unpredictability as intermediate types of reaction.Resumen Se esperaría que las variedades de papa (Solanum tuberosum spp. tuberosum) expresen un nivel estable de caracteres importantes para productores y consumidores. Para investigar como esta expectativa pudiera darse en un juego de 21 variedades de Hungría, Polonia y España, se llevaron a cabo experimentos de campo durante dos años en estos países para la evaluación de rendimiento de tubérculo, rendimiento y contenido de almidón, y la presencia de crecimiento secundario de tubérculos. Se evaluó la estabilidad, en un sentido agronómico, mediante el análisis de la interacción genotipo-medio ambiente (GE), usando el modelo de la mezcla Scheffé-Caliński. La expresión de un carácter inestable se indicó por la significancia estadística de GE en la variabilidad proporcionada por una variedad específica. Esta inestabilidad podría conducir ya fuera para imprevisibilidad completa o parcial. La expresión de un carácter estable se observó en 6-11 variedades, dependiendo del carácter. Raramente se encontró un factor genético significativo que indicara amplia adaptación. La expresión estable de rendimiento de tubérculo se presentó junto con la expresión estable o predecible tanto con el contenido como con el rendimiento de almidón. También se asociaron expresiones inestables de rendimiento de tubérculo y almidón. La estabilidad o inestabilidad de crecimiento secundario no se asoció con estabilidad o inestabilidad de los otros caracteres medidos. El análisis de la interacción GE fue útil para la identificación de respuestas estables o inestables y reveló la presencia de estabilidad incompleta...

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Observations on the induction of second-growth in potato tubers

Cited by 41 publications

References 4 publications

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

Review Of The Sugar End Disorder In Potato (Solanum tuberosum, L.)

Stability Analysis of Agronomic Traits in Potato Cultivars of Different Origin

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