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Effect of Location and Burial Depth on Woolly Cupgrass (Eriochloa villosa) Seed Germination

Published online by Cambridge University Press:  20 January 2017

Damian D. Franzenburg  and
Micheal D. K. Owen
Damian D. Franzenburg
Affiliation:
Agronomy Department, Iowa State University, Ames, IA 50011-1010
Micheal D. K. Owen*
Affiliation:
Agronomy Department, Iowa State University, Ames, IA 50011-1010
*
Corresponding author's E-mail: [email protected]
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Abstract

Woolly cupgrass seeds are dormant at physiological maturity and lose dormancy while afterripening in winter. Field experiments were conducted with the seeds collected from the locations across Iowa in the fall of 1991 and 1992. The seeds were buried in mid-November 0, 5, and 15 cm below the soil surface. Seeds were extracted biweekly until mid-February and germination tests conducted. Seeds buried below the soil surface were less dormant when compared with seeds on the soil surface. There were also dormancy differences between locations. Differences observed between locations and variations from 1991 to 1992 indicated that the parent plant environment, and the likely genotype, had a significant effect on woolly cupgrass seed dormancy.

Keywords

Woolly cupgrass, Eriochloa villosa (Thunb.) Kunth #3 ERIVIABUTHAbutilon theophrasti, acetochlor, afterripening, Amaranthus rudis, AMATA, atrazine, dormancy, pendimethalin, Setaria faberi, SETFATZ, tetrazolium test
Type
Research
Information
Weed Technology , Volume 16 , Issue 4 , December 2002 , pp. 719 - 723
Copyright
Copyright © Weed Science Society of America 

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