246 BREEDING CROP PLANTS 



TABLE LXIII. INHERITANCE OF CHARACTERS IN THE TOMATO 



The F z segregation ratio is 3:1. Jones (1917) has pointed out 

 that the data of Hedrick and Booth (1907) and Price and Drink- 

 ard (1908) show linkage relations between the factors for vine 

 habit and fruit shape and also between those for leaf color and 

 loculation of ovary. 



Heterosis in the F\ generation of certain tomato crosses 

 and its commercial possibilities for increased production have 

 been pointed out (Wellington, 1912; Hayes and Jones, 1916). 

 Groth, of the New Jersey State College Experiment Station, 

 made a study of size inheritance in the tomato fruit. The re- 

 sults are explained by what the author (1914) terms " Golden 

 mean." If (a) and (6) represent the respective magnitudes or 

 volumes of size characters of the parents, the FI is represented by 

 \/ab rather than (a + 6)/2. This hypothesis was put forward as 

 non-Mendelian and in explanation of results in size inheritance 

 frequently attributed to multiple factors. Emerson (19146) has 

 shown that the hypothesis is essentially based on multiple factors. 



PEPPERS 



Classification Characters and Inheritance. Garden peppers 

 which are commonly grown for pickles or for condiments belong 

 to the species Capsicum annuum. From the standpoint of their 

 utilization as food, peppers may be divided roughly into two 

 groups hot and mild, depending on flavor. Mild peppers are 



