UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1450 
Washington, D. C. T March, 1927 
1 i — 
THE LIFE HISTORY OF TIMOTHY 
By 
MORGAN W.EVANS 
Associate Agronomist, Office of Forage Crops, Bureau of Plant Industry 
CONTENTS 
Page 
Introduction 1 
Growth of the Timothy Plant 3 
The Shoot 10 
Roots : . 27 
The Haplocorm 28 
LeaTes , 32 
The Inflorescence 36 
Effect of Length of Day on Growth of Timothy 45 
Summary 49 
Literature Cited 53 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1927 
