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Germination and Emergence of Winged Elm Seed

Published online by Cambridge University Press:  12 June 2017

B. Kirby  and
P. W. Santelmann
B. Kirby
Affiliation:
Department of Agronomy, Oklahoma Agricultural Experiment Station, Stillwater, Oklahoma
P. W. Santelmann
Affiliation:
Department of Agronomy, Oklahoma Agricultural Experiment Station, Stillwater, Oklahoma
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Abstract

Seeds of winged elm (Ulmus alata Michx.) stored under moist conditions lost viability rapidly. Under dry conditions the seeds lived longer. Winged elm seeds would not germinate at 4 C or 42 C but did at temperatures between these points. Salt concentrations above 20,000 ppm killed the seed; concentrations below this inhibited germination; twelve per cent manitol solutions (16 atmospheres osmotic pressure) prevented germination; pressures lower than this decreasingly affected germination. If the soil moisture level was below 2%, winged elm seeds would not germinate. Removal of the outer husk of the seed did not affect germination. Winged elm seedlings did not emerge if planted at depths below ¼ inch.

Type
Research Article
Information
Weeds , Volume 12 , Issue 4 , October 1964 , pp. 277 - 279
Copyright
Copyright © 1964 Weed Science Society of America 

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References

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