578 Bulletin 84 



i.i quality to any kidney beans, and is particularly adapted to the 

 climate of many regions in Northern Arizona.* 



In 1914, a fungus disease appeared, the greatest damage being 

 done to pink beans. 



CORN 



Native Indian Varieties: For convenience in comparison, 

 tables recording variety tests of corn are divided into two groups, 

 native Indian, and improved American varieties. The origin of In- 

 dian varieties is not known further than that they have been grown 

 for a great many years by various tribes in the State. Some have 

 distinct varietal characteristics, while others should be considered 

 merely as races. In Tables XLVI and XLVII Papago sweet is 

 included among Indian varieties, though it has been bred up and 

 adapted until it may well be considered an improved American 

 variety. 



Three varieties of native corn. Yellow Hopi, Pima and Papago 

 sweet, were planted in 1912. The best yield, 1740 pounds of ear 

 corn per acre, was obtained from the plot of Papago sweet. Two 

 plots of Yellow Hopi yielded 1352 and 1600 pounds of ear corn per 

 acre, respectively. See Table XLVI. 



Supplementing varieties grown in 1912, Hopi White Flint, 

 Blue Hopi, and White Hopi were added to the test in 1913. The 

 best yield was obtained from Blue Hopi. 



In 1914, Mohave, several additional strains of Hopi, and three 

 varieties, Palakai, Koescha Kai and Heroosquapa, obtained from 

 Toriva, were added. The maximum yield of 2200 pounds of ear 

 corn per acre was secured from a plot of Pima. 



Fewer varieties were planted in 1915, the best yield being ob- 

 tained from a plot of White Flint. 



In Table XLVII, which summarizes the variety test of native 

 Indian corn, annual yields represent the average of all plots of the 

 specified variety for the given year. 



The desirability of certain Indian varieties of corn for dry- 

 farming is clearly evident. A degree of drought resistance has 

 been bred up by natural selection for an unknown period of years, 



♦For a description of bean varieties see Arizona Agricultural Experiment Sta- 

 tion Bulletin No. 68, "Southwestern Beans and Teparies," by George F. Freeman. 



