A. J. Riker

Growth substance in crown gall as related to time after inoculation, critical temperature, and diffusion

The growth of sunflower tissue in vitro on synthetic media with various organic and inorganic sources of nitrogen

Studies on cultural characteristics, physiology and pathogenicity of strain types of Phytomonas Stewarti

White pine selections tested for resistance to blister rust

Comparative physiology of crown gall, attenuated crown gall, radiobacter, and hairy root bacteria

Introduction to research on plant diseases

Bacteria pathogenic on plants

Some environmental factors influencing the development of hairy root on apple

Influence of temperature, moisture, and soil reaction on the damping-off of red pine seedlings by Pythium and Rhizoctonia

How we're fighting the war against fungi

The relation of some chemical and physico-chemical factors to the initiation of pathological plant growth

Life history and distribution of Pythium and Rhizoctonia in relation to damping-off of red pine seedlings