52 The Bulletin. 



ii'i 



SUMMARY OF RESULTS OF VARIETY TESTS OF COWPEAS. 



As stated above, the results of the yearly tests have been brought 

 together in a Table giving the summary or averages for the several 

 years. This table includes the same data as the preceding ones, and, 

 in addition, the number of peas to make a pound, which is a measure 

 of the size of the individual peas, the color and shape of the peas, 

 and the habit of gTOwth of the several varieties, whether erect, half 

 trailing or trailing. The rank of the several varieties according to 

 productiveness of peas and hay has been arranged in groups accord- 

 ing to the number of years tested. Those varieties wdiich have been 

 tested four years or more are included in the general averages- and 

 are given rank according to the amoimt of hay and peas each variety 

 has yielded on an -average during the years they have been grown. 

 The other varieties have their averages for the number of years for 

 which they have been grown and are not given rank in comparison 

 with the others ^vhich have been grown for longer periods. In com- 

 paring varieties it is necessary that they should have been gro^^^l the 

 same year and under the same conditions, as different seasons affect 

 the yield very much, especially when planted late and follow grain, 

 as was the case with most of our work. 



The main uses of the cowpea are for the production of peas, of 

 hay, for grazing and soiling, and for soil improvement. A study of 

 the results in the several yearly tables and in the summary table re- 

 veals among others the following interesting facts : 



Peas. — The yield of peas in the varieties included in the tests for 

 four or more years range from 13.5 to 6.6 bushels per acre, the varie- 

 ties in the order of productiveness being : 



Whittle, 



Small Black, 



JSTew Era, 



Whippoorwill, 



Sixty-day, 



Red Crowder, 



Southdown, 



Iron, 



Large Black Eye, 



Powell's Early Prolific, 



Small Black Eye, 



Small Lady, 



Red Ripper, 



Yellow Sugar Crowder, 



Mealer's Clay, 



Michigan Eavorite, 



Clay, 



Brown Coffee. 



