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stand more cold than the Sumatra and is in every way a hardier 

 plant. The rainfall is somewhat higher in Hamakua than it is in 

 the best tobacco districts in Sumatra, but the humidity is higher, and 

 the temperature is lower. It is believed that the uniformity of tem- 

 perature is advantageous to the production of the highest quality of 

 tobacco, while detrimental to some extent in curing. This can be 

 overcome by artificial means. The factor which is of the greatest 

 importance is undoubtedly that of the prevailing cloudiness. There 

 will be no necessity for artificially shading tobacco in any of our 

 regions of daily cloud accumulation. 



PROBLEMS OF TOBACCO CULTURE. 



As has been recently pointed out by other investigators, there is 

 a large field for work in the selection and breeding of improved 

 types of tobacco. The crop from almost any lot of seed from what- 

 ever source shows the widest possible variation in size, vigor, shape, 

 and quality of plants. Considerable work along this line has already 

 been done, and our results are such that we should advise every 

 tobacco raiser himself to select and breed those types which most 

 completely fulfill the commercial requirements. In working through 

 the fields an}^ plant that shows desirable characteristics should be 

 reserved for seed purposes and protected from cross-fertilization. 

 The leaves should never be cut from a plant that is to be allowed to 

 go to seed. 



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