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Population and Maturation Characteristics of the Common Milkweed

Published online by Cambridge University Press:  12 June 2017

Donna Sauer  and
Dorothy Feir
Donna Sauer
Affiliation:
Biol., Alabama St. Univ., Montgomery, AL 36101
Dorothy Feir
Affiliation:
Biol. Dep., St. Louis Univ., St. Louis, MO 63103
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Abstract

Maturation rate, pod production, and density of common milkweed (Asclepias syriaca L.) were determined at sites in east-central Missouri. Emergence of milkweeds in May was followed by blooming of flowers in late June, production of full-size follicles (average of 5.1 per plant) by late July, and release of seed in mid-September. Density was 1 to 3 plants per m2 and spacing of plants in 1.4 m2 samples was equidistant. Significant. positive correlations were found between mean height of milkweeds and pH, magnesium and calcium concentrations in the soil, and between density and pH of the soil.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 3 , May 1974 , pp. 293 - 297
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

Literature Cited

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