Interaction of Nitrogen Nutrition, Phytohormones, and Tuberization

Krauss, A.

doi:10.1016/b978-0-12-447660-8.50011-9

Cited by 49 publications

(40 citation statements)

References 66 publications

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“…It is not yet known how nitrogen levels cause the inhibition of tuberization, although there are reports that nitrogen withdrawal affects phytohormone levels, causing a reduction in GA levels and an increase in ABA levels (Krauss, 1985). An alternative hypothesis is that the ratio of carbohydrate to nitrogen is important.…”

Section: High Nitrogen Levels Inhibit Tuberizationmentioning

confidence: 96%

“…andigena plants in inducing SD conditions as opposed to noninducing long-day or short-day plus night-break conditions (Machackova et al, 1998). ABA levels in shoots and roots of potato have also been shown to be affected by nitrogen levels (Krauss, 1985). However, as an ABAdeficient mutant of potato, Droopy is able to tuberize (Quarrie, 1982), and it is clear that ABA is not an essential component of the tuberization stimulus.…”

Section: No Clear Role Has Been Defined For Any Other Plant Hormonementioning

confidence: 99%

“…Elegant experiments by Krauss and co-workers (for review, see Krauss, 1985) demonstrated that tuberization could readily be manipulated by altering the supply of nitrogen (either ammonium or nitrate ions) to the plant. Whereas previous studies had looked at the effect of high doses of nitrogen fertilizer on field-grown plants, Krauss and co-workers grew the plants in liquid media (hydroponic culture) in which the level of nitrogen supplied to the plant could be precisely controlled.…”

Section: High Nitrogen Levels Inhibit Tuberizationmentioning

confidence: 99%

See 2 more Smart Citations

Multiple Signaling Pathways Control Tuber Induction in Potato

Jackson¹

1999

Plant Physiology

283

210

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Section: High Nitrogen Levels Inhibit Tuberizationmentioning

confidence: 96%

Section: No Clear Role Has Been Defined For Any Other Plant Hormonementioning

confidence: 99%

Section: High Nitrogen Levels Inhibit Tuberizationmentioning

confidence: 99%

See 1 more Smart Citation

Multiple Signaling Pathways Control Tuber Induction in Potato

Jackson¹

1999

Plant Physiology

283

210

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“…Las giberelinas actúan como inhibidor de la tuberización Krauss (1985), así, en condiciones de inducción de la tuberización el bajo aporte de nitrógeno altero el radio de hormonas ácido absicico: giberelinas, incrementó el ácido absicico y decreció la cantidad de giberelinas, lo que coincidió con el inicio de la tuberización Krauss y Marschner (1981). Los niveles endógenos de giberelinas en plantas de papa son altos en condiciones no inductivas (altas temperaturas y fotoperiodos largos) y decrecen bajo condiciones de inducción de la tuberización (Vreugdenhil y Sergeeva, 1999).…”

Section: Introductionunclassified

“…Gibberellins acting as inhibitor tuberisation Krauss (1985) and in induction conditions tuberisation low contribution of altered nitrogen radius of abscisic acid hormones: gibberellins, increased the abscisic acid and decreased the amount of gibberellins, which it coincided with the start of the tuberisation Krauss and Marschner (1981). Endogenous levels of gibberellins in potato plants are high in non-inductive conditions (high temperatures and long photoperiod) and decrease under conditions of induction tuberisation (Vreugdenhil and Sergeeva, 1999).…”

Section: Introductionmentioning

confidence: 99%

Aplicación periódica de bajas concentraciones de paclobutrazol y ácido salicílico en papa en invernadero

Flores-López

Martínez-Gutiérrez

López-Delgado

et al. 2017

Remexca

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ResumenEl objetivo de esta investigación fue determinar el uso de bajas concentraciones de ácido salicílico y paclobutrazol en Solanum tuberosum (Cristal y clon 981824) en invernadero para el incremento de rendimiento y almidón en papa. Los experimentos se realizaron en 2012 en Zinacantepec, México. Los tratamientos consistieron en aspersión con AS: 10 -8 , 10 -10 , 10 -12 y 10 -14 M, paclobutrazol: 1, 0.75, 0.5, 0.25 mg L -1 y el testigo, arreglados en bloques completos al azar, se determinó altura, clorofila, IAF, peso fresco, número de tubérculos y contenido de almidón. En el clon 981824, las plantas testigo y las de AS (10 -8 y10 -10 ) presentaron mayor altura, mientras para Cristal fueron las de AS, testigo y paclobutrazol 0.25 mg L -1 . En clorofila e IAF no hubo diferencias significativas. En el clon 981824, el testigo presento mayor peso fresco (148 g por planta), en cambio Cristal no presentó diferencias entre tratamientos. El número total de minitubérculos fue superior con paclobutrazol 0.5 mg L -1 en ambos genotipos (Cristal: 12.93 y 981824: 23.3). Todos los tratamientos de paclobutrazol y de AS 10 -8 , 10 -10 y 10 -14 presentaron mayor contenido de almidón con respecto al testigo en el clon 981824, mientras que en Cristal fueron: paclobutrazol 0.75 y 1.0 mg L -1 con 241 y 231 mg g -1 y 10 -8 y 10 -12 de AS con 165 y 173 mg g -1 . En conclusión el paclobutrazol disminuye la altura de las plantas y tanto este como el AS incrementan el contenido de almidón de tubérculo a las concentraciones indicadas. AbstractThe objective of this research was to determine the use of low concentrations of salicylic acid and paclobutrazol in Solanum tuberosum (Crystal and clone 981824) in the greenhouse for increased performance and potato starch. The experiments were performed in 2012 in Zinacantepec, Mexico. Treatments consisted of spraying with AS: 10 -8 , 10 -10 , 10 -12 y 10 -14 M, paclobutrazol: 1, 0.75, 0.5, 0.25 mg L -1 and the control, arranged in a randomized complete blocks, determined height, chlorophyll, IAF, fresh weight, number of tubers and starch content. In clone 981824, the control plants and AS (10 -8 and10 -10 ) had higher, while for Cristal were AS, witness and paclobutrazol 0.25 mg L -1 . Chlorophyll and IAF there were no significant differences. In clone 981824, the witness had higher fresh weight (148 g per plant) instead Cristal showed no differences between treatments. The total number of minitubers was higher with paclobutrazol 0.5 mg L -1 in both genotypes (Crystal: 12.93 and 981824: 23.3). All paclobutrazol treatments and AS 10 -8 , 10 -10 and 10 -14 had higher starch content compared with the control in the clone 981824, while in Cristal were paclobutrazol 0.75 and 1.0 mg L -1 to 241 and 231 mg g -1 , 10 -8 and 10 -12 of AS 165 and 173 mg g -1 . In conclusion paclobutrazol reduces plant height and both this and the AS increase the starch content of the tuber at the indicated concentrations.1144 Rev. Mex. Cienc. Agríc. Vol.7 Núm. 5 30 de junio -13 de agosto, 2016Román Flores-López et al.

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The effect of the time and mode of application of gibberellic acid on the growth and yield of potato plants derived from true potato seed

2006

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The effect of the time and mode of treatment (single or repeated applications) of gibberellic acid (GA 3 ) on the growth and tuberisation of plants grown from true seed (TPS) of potato Chacasina F 1 was studied. Plant height, fresh and dry weight of stems and leaf dry weight increased in response to single or repeated GA 3 applications. Leaf colour was not affected by single applications of GA 3 , whereas repeated applications caused a reduction in colour intensity. The numbers of secondary shoots and leaves per plant as well as total leaf area were largely unaffected by GA 3 , although repeated applications from early in the growth cycle increased these parameters under conditions of decreasing photoperiod. When applied as a single dose during spring, GA 3 caused an increase in the number of tubers per plant, with a concomitant decrease in tuber dry matter content, irrespective of application date. In autumn the number of tubers per plant increased following single applications of GA 3 up to 50 days after transplantation, whereas tuber dry matter decreased. By contrast, repeated applications of GA 3 in both seasons increased tuber number only when initiated early in the growth cycle. The mean weight of tubers per plant was variably affected by GA 3 application, depending on the season, time and mode of application. It is suggested that the foliar application of GA 3 to plants from TPS at an early stage of vegetative development may be of value for seed tuber or micro-tuber production, primarily by increasing the number of tubers produced per plant.

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Interaction of Nitrogen Nutrition, Phytohormones, and Tuberization

Cited by 49 publications

References 66 publications

Multiple Signaling Pathways Control Tuber Induction in Potato

Multiple Signaling Pathways Control Tuber Induction in Potato

Aplicación periódica de bajas concentraciones de paclobutrazol y ácido salicílico en papa en invernadero

The effect of the time and mode of application of gibberellic acid on the growth and yield of potato plants derived from true potato seed

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