UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



BOTANY 



Vol. 5, No. 2, pp. 87-168, pis. 29-34 



Issued December 6, 1912 



QUANTITATIVE STUDIES OF INHERIT- 

 ANCE IN NICOTIAN A HYBRIDS * 



I. THE RELATION BETWEEN THE WEIGHTS OF 

 HYBRID TOBACCO SEED AND THE INHERIT- 

 ANCE OP CERTAIN CHARACTERS IN F,. 



II. QUANTITATIVE EXPRESSION OF IMPERFECT DOM- 



INANCE IN THE COROLLA DIAMETERS OF 

 THE FLOWERS ON THE HYBRIDS PRO- 

 DUCED FROM THREE VARIETIES OF 

 NICOTIAN A ACUMINATA 



BY 



THOMAS HAKPER GOODSPEED 



LIBRARY 

 NEW YOkK 

 BOTANICAL 



OARDBN, 



THE RELATION BETWEEN THE WEIGHTS OF HYBRID 



TOBACCO SEED AND THE INHERITANCE 



OF CERTAIN CHARACTERS IN F^ 



CONTENTS 



PAGE 



I. Introduction 88 



II. Description of experimental material 89 



(1) Distinguishing characteristics of parents and appear- 

 ance of the hybrid in Fj 89 



III. Division of the hybrid seed according to — 



(1) Size and shape 91 



(2) Color 92 



(3) Weight 92 



* A thesis in partial fulfillment of the requirements for the Degree 

 of Doctor of Philosophy in the TInivorsity of California. 



