The Inter-Relations of Catalase, Respiration, After-Ripening, and Germination in Some Dormant Seeds of the Polygonaceae

Ransom, Elizabeth Ruth

doi:10.2307/2435957

Cited by 11 publications

(8 citation statements)

References 3 publications

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“…Within the dormancy release range determined in this work, the relationship between the dormancy release rate and temperature was logistic, with only a slight decrease in the rate of dormancy release between 2 and 10°C, and an abrupt reduction in this rate between 10 and 20°C. This result again agrees with observations made by Ransom (1935) who determined that optimum dormancy release temperature for seeds of various Polygonum spp. were between 3 to 6°C, and with temperature‐dependent dormancy release rates determined by Vleeshouwers and Bouwmeester (2001) for Polygonum persicaria , in which dormancy release was maximum at 1.8°C and minimum at 15.5°C.…”

Section: Discussionsupporting

confidence: 93%

“…Dormancy induction of Polygonum spp. seeds at temperatures between 20 and 25°C have been previously reported by other authors (Ransom, 1935; Courtney, 1968; Kruk & Benech‐Arnold, 1998; Batlla et al. , 2003; Batlla & Benech‐Arnold, 2004).…”

Section: Discussionsupporting

confidence: 75%

“…reported in other studies. For example, Ransom (1935) reported no dormancy release for seeds of various Polygonum spp. stored moist at 18, 20, 30°C or alternating temperatures of 20/30°C.…”

Section: Discussionmentioning

confidence: 99%

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A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

et al. 2009

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Summary Mathematical models that predict emergence of weed seedbanks could be useful tools for determining the most suitable time for weed seedling control and, consequently, should result in a higher efficacy of applied control methods. To achieve this goal in dormant weed species, functional relationships should be established between environmental factors regulating dormancy and dormancy changes of seed populations. In the present work, we used a simple model and an optimisation procedure to quantify the effect of temperature on Polygonum aviculare seed dormancy release and induction, based on germination data. Dormancy release rate was inversely related to temperature, showing a decreasing logistic trend that results in no dormancy release for seeds exposed to 20 and 25°C. In contrast, dormancy induction rates in absolute values were positively associated with temperature, showing a logistic trend in which dormancy induction was almost zero at low temperatures and maximal at 25°C. Derived model parameters were used to simulate dormancy changes of P. aviculare seeds stored under controlled and field conditions. These results suggest that similar model structures could be used to quantify temperature effects on seed dormancy status of other weed species and to develop predictive models of weed emergence.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 75%

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A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

et al. 2009

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“…These mechanisms do not reside in the embryo which develops at constant temperatures. The stimulatory effects of alternating temperatures on seed germination in some species have been attributed to increased permeability of the seed coat to water and gases, or to sufficient weakening of the integuments to permit the embryo to enlarge and rupture the coats (Crocker, 1906;Morinaga, 1926;Ransom, 1935;Thornton, 1945;Porter, 1949;Toole et al, 1956;Griesbach and Voth, 1957). These mechanisms do not appear to be involved in seeds of M. balbisiana, inasmuch as maximum imbibition by intact seeds occurs in approximately 3 days, and seeds mechanically scarified imbibe the same amount of water after approximately 2 days (unpublished data).…”

mentioning

confidence: 99%

“…High temperatures are usually responsible for the destruction of inhibitors in plants (Evenari, 1949), although in some seeds their accumulation is retarded by low temperatures (Thornton, 1945;Ransom, 1935;Went, 1953). The synthesis and activity of some plant enzymes, e.g., the mobilization of carbohydrates and proteins in the seed of Heracleum sphondylium L. (Stokes, 1953), and starch hydrolysis and phosphorylase activity in potato tubers (Arreguin-Lozana and Bonner, 1949), are usually greater [AVol.…”

mentioning

confidence: 99%

Seed Germination Studies in Musa. II. Alternating Temperature Requirement for the Germination of Musa balbisiana

Stotzky¹,

Cox²

1962

American Journal of Botany

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Seed Germination Studies in Musa. Ii. Alternating Temperature Requirement for the Germination of Musa Balbisiana

Stotzky¹,

Cox²

1962

American J of Botany

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Stotzky, G., and Elsie A. Cox. (Central Research Labs., United Fruit Co., Norwood, Mass.) Seed germination studies in Musa. II. Alternating temperature requirement for the germination of Musa balbisiana. Amer. Jour. Bot. 49(7): 763–770. Illus. 1962.—Alternating temperatures were found to be required for the germination of seeds of Musa balbisiana. The temperature differentials optimal for germination in soil are dependent upon both the high and low temperatures, and range from 8–23 C. Germination is maximal when the seeds are held 6–12 hr at the high (27–35 C) and 12–18 hr at the low (12–18 C) temperatures. Some germination can be induced by short exposures to alternating temperatures followed by constant high temperatures, but continuous exposure to alternating temperatures is necessary for maximum germination. Excised embryos develop better at constant than at alternating temperatures, showing that the mechanisms affected by alternating temperatures reside elsewhere in the seed. Alternating temperatures are also required for germination of mechanically scarified seeds, although the temperature differentials are less than those necessary for intact seeds, indicating that the action of alternating temperatures is not on the permeability of the integuments.

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The Inter-Relations of Catalase, Respiration, After-Ripening, and Germination in Some Dormant Seeds of the Polygonaceae

Cited by 11 publications

References 3 publications

A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

A quantitative analysis of temperature‐dependent dormancy changes in Polygonum aviculare seeds

Seed Germination Studies in Musa. II. Alternating Temperature Requirement for the Germination of Musa balbisiana

Seed Germination Studies in Musa. Ii. Alternating Temperature Requirement for the Germination of Musa Balbisiana

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