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Yields of Propagules of Certain Aquatic Plants I.

Published online by Cambridge University Press:  12 June 2017

R. R. Yeo
R. R. Yeo*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, and Department of Botany, University of California, Davis, California
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Abstract

Two propagules, axillary tubers of American pondweed and subterranean tubers of floating-leaf pondweed, previously undescribed, are reported. (Results for the first 4 yr of an 8 yr study of the yields of propagules certain aquatic plants grown are reported.) Single propagules of were planted April 1 in California or May 1 in Montana and harvested at the end of the growing season. Two types of propagules were studied, seeds and specialized asexual disseminules. (The latter included subterranean and axillary tubers, axillary buds, and stem segments.) The yields of seeds ranged from 0 with three species to over 2,000,000 with horned pondweed. One culture of sago pondweed formed over 36,000 subterranean tubers. Over 49,000 and 23,000 axillary propagules were produced by leafy and curlyleaf pondweeds, respectively.

August, September, and October were the most productive months for the development of propagules. The period varied with each species.

Type
Research Article
Information
Weeds , Volume 14 , Issue 2 , April 1966 , pp. 110 - 113
Copyright
Copyright © 1966 Weed Science Society of America 

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References

Literature Cited

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