36 



Relative to No. of Varieties No. of growers so reporting, 

 being planted 



irom this it may be seen that there is a clear tend- 

 ency to use fewer varieties. In many communities the growers 

 have found out from experience what varieties are best adapt- 

 ed to the locality, and all others are becoming eliminated 

 rapidly from the plantings. There is a tendency in some 

 places to plant more varieties only in the sense that growers 

 are testing out new varieties, but this is usually done on 

 a small scale. The commercial growers are Confining their 

 attention to the standard varieties. 



Some Causes Which Determine the Adaptation of 

 Varieties . - In order to obtain more detailed information 

 regarding the adaptation of varieties to certain localities, 

 and to find out what environmental factors are most import- 

 ant in the adaptation of varieties, the following question 

 was asked: "Does climate or any other factor, as elevation, 

 soil, insects or diseases peculiar to your locality limit 

 you to certain varieties?" 



A majority of the growers agreed that the factors, 

 soil and climate have a very marked influence on varieties 

 and that the varieties to be planted in a given locality are 

 limited, in a measure, by the local environment. A number 



