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Document Type

Research

Abstract

The germination of the seeds of weeds and other plants that reseed themselves is noticeably periodic. In some species the grand period of germination closely follows the rise in temperature above freezing and the thawing of the soil in the spring while in other species germination is delayed till late spring or summer, and in the case of winter annuals the seeds germinate mainly in the fall.

Publication Date

1943

Journal Title

Proceedings of the Iowa Academy of Science

Volume

50

Issue

1

First Page

221

Last Page

228

Copyright

© Copyright 1943 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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