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Growth of Common Purslane as Influencing Control and Importance as a Weed

Published online by Cambridge University Press:  12 June 2017

H. J. Hopen
H. J. Hopen*
Affiliation:
Dep. of Hort., Univ. of Illinois at Urbana-Champaign, Urbana, Illinois 61801
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Abstract

A higher population of common purslane (Portulaca oleracea L.) developed on a smooth seedbed than a rough seedbed. Purslane germinated best when the seed were placed on the soil surface, and the percentage germination decreased progressively as depth of seed placement increased. Growth of common purslane was greater at elevated nutrient levels and was dependent on adequate phosphorus in the nutrient media. High soil temperature requirements for optimum germination make common purslane a middle to late-growing season weed in the central United States. Often preemergence herbicides which are effective on common purslane have become ineffective by the time the common purslane population has developed, and postemergence herbicides which do not injure the individual crop species must be relied on for common purslane control.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 1 , January 1972 , pp. 20 - 23
Copyright
Copyright © Weed Science Society of America 

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