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Emergence of Barnyardgrass, Green Foxtail, and Yellow Foxtail Seedlings from Various Soil Depths

Published online by Cambridge University Press:  12 June 2017

J. H. Dawson  and
V. F. Bruns
J. H. Dawson
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Irrigation Experiment Station, Prosser, Washington
V. F. Bruns
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Irrigation Experiment Station, Prosser, Washington
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Abstract

Seedlings of barnyardgrass, green foxtail, and yellow foxtail emerged from seeds as deep as 5 inches in Sagemoor fine sandy loam. The number of emerged seedlings from depths of 4 to 5 inches decreased in the order of decreasing seed weights; yellow foxtail, barnyardgrass, green foxtail. Few seedlings developed in the field from seeds on the soil surface. Seedling emergence in spring or greenhouse seedings was greatest from the most shallow depths (½ or 1 inch) and decreased regularly as depth of planting increased. An autumn seeding gave maximum emergence at 1½ inches, possibly because some seeds sown shallower may have germinated in short warm periods but were killed by subsequent freezing.

Type
Research Article
Information
Weeds , Volume 10 , Issue 2 , April 1962 , pp. 136 - 139
Copyright
Copyright © 1962 Weed Science Society of America 

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References

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