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Growth and Development of Bulbous Oatgrass (Arrhenatherum elatius var. bulbosum)

Published online by Cambridge University Press:  12 June 2017

Karin Tanphiphat  and
Arnold P. Appleby
Karin Tanphiphat
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Arnold P. Appleby
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis, OR 97331
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Abstract

Bulbous oatgrass, a weed in parts of the United States and Europe, is an unusual grass, which forms corms at the stem base. Growth and development of this creeping perennial grass was investigated in the field and in pots outdoors. Under the mild climate of the Willamette Valley, Oregon, shoots emerged in early autumn. Plants grew vegetatively and formed corms during the winter and spring. Aboveground portions of the plant stopped growing and senesced in the summer. The absolute growth rate of the plants was highest in early May, shortly before the onset of flowering. In early May, the growth rate of corms was higher than that of the shoot.

Keywords

Bulbous oatgrass, Arrhenatherum elatius (L.) Presl. var. bulbosum (Willd.) Spenn. ♯3 ARREB.Growth ratecormsbiomass accumulationbiomass distributionARREB

Information

Type
Research
Information
Weed Technology , Volume 4 , Issue 4 , December 1990 , pp. 843 - 848
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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