Effects of various treatments on the germination of sawgrass,Cladium jamaicense Crantz, seeds

Ponzio, Kimberli J.

doi:10.1007/bf03161442

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…Thus, increasing the amount of bioavailable P (i.e., inorganic forms) through mineralization and physical concentration provides an advantage for species with high affinities for this nutrient. Under laboratory conditions, Rivard and Woodard (1989) reported that the nutrients in common cattail ( Typha latifolia L.) ash stimulated seed germination whereas sawgrass seed is apparently unresponsive to nutrient enrichment (Lorenzen et al, 2000; Ponzio, 1998). Smith and Newman (2001) recently conducted bioassays with seedlings of southern narrow‐leaved cattail, which revealed that peat‐burned soils (from the RWMA) were a better growth medium compared with surface‐ or non‐burned soils as evidenced by higher biomass and tissue P concentrations.…”

Section: Resultsmentioning

confidence: 99%

Differential Effects of Surface and Peat Fire on Soil Constituents in a Degraded Wetland of the Northern Florida Everglades

et al. 2001

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The effects of surface (aboveground) and peat (belowground) fire on a number of soil constituents were examined within a hydrologically altered marsh in the northern Florida Everglades. Peat fire resulted in losses of total carbon (TC), total nitrogen (TN), and organic phosphorus (Po), while inorganic phosphorus (Pi) and total calcium (TCa) concentrations increased. In addition, peat fire led to a more pronounced vertical gradient in constituent concentrations between upper and lower soil layers. Surface fire also affected soil constituents, but impacts were small relative to peat fire. The effects of physical versus chemical processes during burning were assessed using ratios of constituent to TCa concentrations. This measure indicated that increases in the levels of total phosphorus (TP) in peat-burned areas were due primarily to the physical reduction of soil, while decreases in TN and TC were the result of volatilization. Increases in concentrations of Pi fractions arose from both chemically and physically mediated processes. In an ecological context, the observed soil transformations may encourage the growth of invasive plant species, such as southern narrow-leaved cattail (Typha domingensis Pers.), which exhibits high growth rates in response to increased P availability.

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Section: Resultsmentioning

confidence: 99%

Differential Effects of Surface and Peat Fire on Soil Constituents in a Degraded Wetland of the Northern Florida Everglades

et al. 2001

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“…Factors such as temperature and chemical sterilants have been shown to alter seed germination and embryo physiology in plants (1,24). Among the sterilants, sodium hypochlorite has the ability to overcome seed dormancy by either increasing permeability of the seed coat to oxygen through the removal of phenolics, as in Parthenium argentatum (15), or by scarification or other modification of the seed coat, as in case of Saponaria vaccaria (14).…”

Section: Discussionmentioning

confidence: 99%

Use of Sodium Hypochlorite to Enhance Seedling Emergence, Vigor, and Survival ofAngelica glaucaandAconitum heterophyllum

Butola

Badola

2008

Journal of Herbs, Spices & Medicinal Plants

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“…Germination of viable seeds evaluated in the laboratory can be low due to dormancy [ 35 , 36 ]. Measures to break seed dormancy include cold-wet stratification or the application of Gibberellic acid (GA), the latter being a convenient approach in germination tests [ 37 , 38 ]. In this study, we tested three cases for dormancy in S. aquaticus with GA: fresh ripe seeds, seeds stored for two years in the fridge at 6°C, and seeds buried in the soil with mesh bags.…”

Section: Test Of Dormancy Of Seedsmentioning

confidence: 99%

Rapid and High Seed Germination and Large Soil Seed Bank ofSenecio aquaticusin Managed Grassland

Suter

Luescher

2012

The Scientific World Journal

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Senecio aquaticus, regionally a Red List species in Europe, has become increasingly abundant in agricultural grassland of medium to high management intensity in Switzerland, Southern Germany, and Austria in recent years, where it is a threat for animal and human health due to its toxicity. In this study, we investigated the seed ecology of S. aquaticus to help protection of the species in relic populations while improving its control when abundant in managed grassland. Germination percentages of fresh ripe seeds of S. aquaticus were on average 68% in 2008, but only 45% in 2010, indicating yearly variation. Germination was generally fast: ten days after the onset of the tests, often more than 45% of all seeds had germinated. When covered with a soil layer of 5 mm, germination was only 16% compared to 63% in full light. Seeds buried in the soil for one and two years showed a germination of 78%, significantly higher than that of fresh ripe seeds, thus suggesting a stimulating effect of cold-wet stratification on germination and long seed survival in the soil. In grasslands with established populations of S. aquaticus, the number of germinable seeds of the species ranged from 361 to 1875 m−2 in topsoil (0–10 cm) with an average of 1139 m−2. The large seed bank and the rapid and high germination of S. aquaticus suggest that allowing seed formation is important for its preservation in relic populations. With respect to agricultural grassland, strategies to control the species should initially target hindering seed production and dispersal.

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Effects of various treatments on the germination of sawgrass,Cladium jamaicense Crantz, seeds

Cited by 17 publications

References 17 publications

Differential Effects of Surface and Peat Fire on Soil Constituents in a Degraded Wetland of the Northern Florida Everglades

Differential Effects of Surface and Peat Fire on Soil Constituents in a Degraded Wetland of the Northern Florida Everglades

Use of Sodium Hypochlorite to Enhance Seedling Emergence, Vigor, and Survival ofAngelica glaucaandAconitum heterophyllum

Rapid and High Seed Germination and Large Soil Seed Bank ofSenecio aquaticusin Managed Grassland

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