UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



AGRICULTURAL SCIENCES 



Vol. 2, No. 7, pp. 217-242, plates 42-43, 3 figures in text June 8, 1923 



GARDEN 



INHERITANCE OF SOME MORPHOLOGICAL 

 CHARACTERS IN CREPIS CAPILLARIS* 



BY 

 VENKATA EAU 



CONTENTS 



PAGE 



Introduction 217 



Objects and aims 218 



Material and methods •. 219 



Inheritance of length of leaf 221 



Inheritance of number of lobes per leaf 223 



Inheritance of size of capitulum 227 



Influence of age of plant 228 



Position of capitulum upon the plant as a factor 229 



Environmental factors 230 



A cross involving difference in head size 232 



Discussion of results • 233 



Summary and conclusions 236 



Literature cited 237 



INTRODUCTION 



Geneticists studying the inheritance of characters in plants have 

 been following with interest the monumental investigations on Droso- 

 phila by Morgan and others, with especial attention to their studies 

 on the inheritance of both qualitative and quantitative characters. 

 The present paper reports the result of an investigation on the inheri- 

 tance of some quantitative characters in a wild plant, Crepis capillaris 

 (L) Wallr. The studies included characters in leaves and flowers, 

 and it will be shown that the inheritance of these characters is similar 

 to the inheritance of quantitative characters in other organisms. 



*Siibmitte(i in partial fulfillment of the requirements for the degree of Doctor 

 of Philosophy at the University of California. 



