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Document Type

Research

Abstract

The downy mildew, Peronospora trifoliorum deBy. of alfalfa, Medicago sativa L., is a widespread disease occurring in almost all countries of the world where alfalfa is grown. This disease assumes importance in the middle-west during wet seasons, particularly in the spring and fall. In Iowa it is most destructive on fall seedings and on the first cutting in the spring. The present studies were undertaken to throw light on the relation of moisture and temperature to spore germination and infection, the possible host range of the downy mildew, and its method of overwintering.

Publication Date

1929

Journal Title

Proceedings of the Iowa Academy of Science

Volume

36

Issue

1

First Page

113

Last Page

119

Copyright

© Copyright 1929 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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