Studies on the Dormancy and Sprouting of Potatoes

Burton, W. G.

doi:10.1111/j.1469-8137.1952.tb06123.x

Cited by 39 publications

(4 citation statements)

References 14 publications

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“…Ethephon suppressed axillary bud development when it was applied to nodes, axillary buds, or the cuts of decapitated plants (Yeang and Hillman, 1982). Ethylene-inhibited sprouting was also seen in potato (Solanum tuberosum L.) tubers (Burton, 1952;Pratt and Goeschl, 1969). In this study, IBA treatment at 1000 mg·liter -1 increased ethylene production dramatically in rose cuttings over the first week ( Figs.…”

Section: Resultssupporting

confidence: 52%

Auxin-induced Ethylene Synthesis during Rooting and Inhibition of Budbreak of `Royalty' Rose Cuttings

Sun¹,

Bassuk²

1993

jashs

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Additional index words. rooting, AIB, ethephon, GA 3 , IBA, Rosa sp., STS Abstract. Single-node 'Royalty' rose (Rosa hybrida L.) cuttings were used to examine the relationship between adventitious root formation, budbreak, and ethylene synthesis following IBA treatment. IBA was applied as a lo-second basal quick dip before rooting, and AIB, GA 3 , STS, and ethephon were applied either as basal dips or foliar sprays. IBA application increased rooting and inhibited budbreak of cuttings. IBA 2 600 mg·liter -1 greatly inhibited budbreak during 4 weeks of rooting. IBA treatment stimulated ethylene synthesis, which was inversely correlated with budbreak of cuttings. Ethephon also significantly inhibited budbreak. Budbreak of rose cuttings was completely prevented by repeated ethephon sprays used to maintain high endogenous ethylene levels during the first 10 days. Treatment with STS, an ethylene-action inhibitor, improved budbreak. The inhibition of budbreak by IBA treatment resulted primarily from elevated ethylene levels. Root initiation and root elongation of cuttings initially inhibited budbreak, but later promoted budbreak. Chemical names used: indole-3-butyric acid (IBA); gibberellic acid (GA 3 ); silver thiosulfate (STS); AIB, aminoisobutyric acid (AIB); (2-chloroethyl)-phosphoric acid (ethephon).

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Section: Resultssupporting

confidence: 52%

Auxin-induced Ethylene Synthesis during Rooting and Inhibition of Budbreak of `Royalty' Rose Cuttings

Sun¹,

Bassuk²

1993

jashs

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“…Burton (4) (14) and seeds (3,19). Considering that the effect of ethylene on dormancy of potatoes is elicited by relatively low concentrations of the gas (as low as 0.02 41/1) and short exposures (8 hr), failure to detect a significant change in ethylene production does not preclude the possibility that ethylene plays a significant role in regulating dormancy.…”

Section: Methodsmentioning

confidence: 99%

“…The older works on potato present conflicting evidence (4,5), and there has been little clarification in recent work. Terminating dormancy in freshly harvested potatoes is an important practical problem, to which much attention has been given, and many chemical treatments have been tried (5,22).…”

mentioning

confidence: 99%

Dual Effects of Ethylene on Potato Dormancy and Sprout Growth

Rylski¹,

Rappaport²,

Pratt³

1974

Plant Physiol.

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Dormant potato tubers (Solanum tuberosum L.) of two cultivars were treated with various concentrations of ethylene gas for various exposure periods. As has been shown by others, ethylene caused a rapid but transient increase in respiration rate, which appeared to be independent of any effects on dormancy. All concentrations tested caused accelerated sprouting, 2 microliters per liter being the most effective. Ethylene exerts a dual effect on potato tubers: it markedly shortens the duration of rest, but it inhibits elongation of the sprouts during extended treatment. Comparing these results with published work on seeds, bulbs, and corms suggests that ethylene must have a significant but as yet unexplained role in rest and dormancy. However, since the most effective ethylene treatment did not equal the response elicited by treatment with ethylene chlorhydrin, other factors must also contribute to termination of rest.The initiation of sprouting in potato tubers is accompanied by a variety of biochemical changes which are usually reflected in changes in hormonal concentration, respiration rate, and the onset of nucleic acid synthesis and cell division and enlargement (16, 21, 24-26, 30, 31). A number of reports have supported the hypothesis that the rest period in potato tubers is regulated by gibberellins and ABA (24,26,30). However, the significance of other hormones, particularly of ethylene, has not been investigated adequately.That ethylene is an endogenous growth hormone for plants and a potent growth regulator is well established (1,23), but its role in the dormancy of potatoes and other plant organs has remained unclear. The older works on potato present conflicting evidence (4, 5), and there has been little clarification in recent work. Terminating dormancy in freshly harvested potatoes is an important practical problem, to which much attention has been given, and many chemical treatments have been tried (5,22). Rosa (28) was first to try ethylene; concentrations of 10, 200, and 1000 ,ull were applied for 28 days giving substantial increases in the stand obtained 1 month after planting. On the other hand, Denny (8, 9) tried ethylene, propylene, and acetylene at 1000 and 10,000 ,lll for 4 and 7 days and found them to be ineffective. In studies by Vacha and Harvey (32), ethylene treatments with 1000 ,ul/l at 20 C for 6 days gave 'This investigation was supported in part by North Atlantic Treaty Organization Research Grant 541 to L.R.2 On leave from Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel. earlier sprouting and faster growth with some potato cultivars. Rosa (29) reported further tests with ethylene, using treatments of 455 and 2500 ,ul/l for 2, 3, or 4 weeks at 22 C; the 2-and 3-week treatments inhibited sprouting, whereas a 4-week treatment promoted sprouting (no difference between the concentrations was observed). In a better planned experiment with 800 ,1/1, ethylene accelerated emergence, especially in the shorter treatments. Another experiment with 500 1ul/l g...

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“…As early as 1952, scientists observed that stored potatoes contain "volatile chemicals" capable of suppressing sprout growth (Burton 1952;Burton and Meigh 1971). Using combined gas chromatography/mass spectrometry (GC/MS), Buttery et al (1970) found methylated naphthalene in vacuum isolated steam distillate from tubers.…”

Section: Introductionmentioning

confidence: 99%

Sprout Suppressing Residue Levels of 1,4dimethylnaphthalene (1,4DMN) in Potato Cultivars

Weerd¹,

Thornton

Shafii

2010

Am. J. Pot Res

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Research on new sprout control methods led to the discovery of 1,4dimethylnaphthalene (1,4DMN) in the late 1970s. This compound has been registered in the USA since 1996 as a reduced risk chemical for use on stored potatoes for the purpose of sprout suppression. Relatively little is known about the levels of tuber residues required to maintain sprout suppression. The objective of this study was to identify the minimum 1,4DMN tuber residue levels above which sprout growth was inhibited. Using modified steel drums to store and treat potatoes, rates of 0 µL kg −1 to 56 µL kg −1 1,4DMN were applied to non-dormant, slightly "peeping" seed tubers of four different cultivars (Russet Burbank, Russet Norkotah, Shepody and FL1879) stored at 15 C±2C. Tubers were treated by dribbling 1,4DMN onto a gauze that was placed on top of a return air pipe that re-circulated forced air inside the drum. Higher application rates resulted in higher 1,4DMN residues and longer suppression of sprout growth. Sprout growth was controlled for more than 50 days for all cultivars in both years for tubers treated at the highest rate. The duration of sprout inhibition corresponded with the time it took for tuber residues to drop below an estimated residue level of 1.4-2.1 ppm, for R. Burbank, Shepody and FL1879, and 2.7 ppm for Russet Norkotah. Below these levels, sprouting was no longer suppressed and resumed for all cultivars.Resumen La investigación sobre nuevos métodos de control de la brotación condujeron al descubrimiento de 1,4dimetilnaftaleno (1,4DMN) a finales de los 1970s. Este compuesto ha estado registrado en los EUA desde 1996 como un químico de riesgo reducido para usarse en papas almacenadas para suprimir la brotación. Se sabe relativamente poco respecto a los niveles de los residuos en tubérculo requeridos para mantener la supresión del brote. El objetivo de este estudio fue identificar los niveles mínimos de residuos de 1,4DMN en tubérculo, arriba de los cuales el crecimiento del brote se inhibía. Usando recipientes de acero modificados para almacenar y tratar las papas, se aplicaron niveles de 0 a 56 µL kg −1 1,4DMN, a tubérculos semilla no en reposo, con brote ligeramente visible, de cuatro cultivares diferentes (Russet Burbank, Russet Norkotah, Shepody y FL1879) almacenados a 15 C±2C. Los tubérculos se trataron mediante goteo continuo de 1,4DMN al interior de una tela de gaza en la parte superior de un conducto de aire forzado recirculante al interior del recipiente. Las dosis más altas resultaron en mayores residuos de 1,4DMN y en supresión por más tiempo del crecimiento del brote. Este crecimiento del brote se controló por más de 50 días en todos los cultivares en ambos años en tubérculos tratados con la dosis más alta. La duración de la inhibición del brote correspondió con el tiempo que llevó para que los residuos del tubérculo bajaran a un nivel estimado de 1.4 a 2.1 ppm para R. Burbank, Shepody y FL 1879, y de 2.7 ppm para Russet Norkotah. Por debajo de estos niveles la brotación no se suprimió y se reanudó para todos los...

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Studies on the Dormancy and Sprouting of Potatoes

Cited by 39 publications

References 14 publications

Auxin-induced Ethylene Synthesis during Rooting and Inhibition of Budbreak of `Royalty' Rose Cuttings

Auxin-induced Ethylene Synthesis during Rooting and Inhibition of Budbreak of `Royalty' Rose Cuttings

Dual Effects of Ethylene on Potato Dormancy and Sprout Growth

Sprout Suppressing Residue Levels of 1,4dimethylnaphthalene (1,4DMN) in Potato Cultivars

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