LUTHER BURBANK 



astonishing ability to resist drought. This Chilean 

 variety will withstand our summer, even if 

 exposed to the blazing sun, and after a period of 

 dormancy will revive and grow freely as soon as 

 the fall and winter rains come. 



My experiments with it have been confined to 

 selection for the development of varieties showing 

 the best qualities of the plant. 



With the peppergrass I have worked somewhat 

 more extensively. Some specimens of this plant 

 have very finely dissected leaves. I have worked 

 to develop this variety, producing leaves very 

 similar to those of the improved varieties of 

 parsley. 



The plant is rather obstinate, but I have 

 nevertheless been successful in developing and 

 fixing varieties having many of the desired 

 characteristics. 



As the peppergrass is an annual it is of course 

 necessary to fix the new qualities so that they will 

 be reproduced in the seedlings. It is this rather 

 than the mere production of the variety that offers 

 difficulties. 



The familiar horseradish offers a notable 

 contrast to the peppergrass and to most other 

 members of the family in the matter of seed. For 

 whereas the mustard, radish, turnip, cresses, and 

 the rest produce seed in the greatest possible 



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