FIiT?Y-FIRST ANNUAL REPORT. 13 



No. 12 South Haven Expeiinifiit .Station, J 92 1. U'o (Ictcnninc to 

 what extent common varieties of plums are self-sterile and to 

 what extent interspecies pollination may take place. 



No. 13 South Haven Expei-iment Station, 1921. To determine if the 

 kind of slock has any effect upon the degree of receptiveness 

 between two species of plums not commonly receptive in cross- 

 pollination. 



GRAPE EXPERIMENTS. 



No. 14 Carl Buskiik farm, Paw Paw; J. P. Munson farm, Grand 



Rapids; and Waters vineyard, Paw Paw. (1) to determine the 

 number of buds to be left on vines with different degrees of 

 vigor on the yield and quality of the grapes produced; (2) The 

 fruiting habits of the grape in Michigan. 



No. 15 Carl Buskirk farm, Paw Paw, 1921. A study of the ferti- 

 lizer requirements on the grape and the relationship of quantity 

 production to the amount supplied. 



TREE FRUIT BREEDING 



No. 16 South Haven Experiment Station, 1918. Tree fruit breed- 

 ing with pears for fire blight resistance; with peaches to obtain 

 a peach hardier in bud and of good commercial character; with 

 apples a studj^ of the inherent characters of the standard varie- 

 ties in crosses. 



VEGETABLE EXPERIMENTS. 



No. 17 East Lansing, 1916. Crossing and selection of strains for a 

 better early tomato that will ripen up its crop most uniformly 

 early. 

 No. 18 Graham Experiment Station, 1919. To test relative pro- 



duction of the different strains of the Late Petoskey Potato. 

 No. 19 Potato seed certification work. To promote the culture and 



distribution of disease-free seed stock. 

 No. 20 Graham Experiment Station, 1921. To ascertain the effect 

 of sulphur as a fertilizer for potatoes, on yield and on develop- 

 ment of potato scab; also the increased production resulting 

 from the use of the several kinds of commercial fertilizers. 



Fremont Canning Company, P'remont, 1921. To test the 

 comparative yields of eight leading varieties of canning peas and 

 resistance of strains to root rot. 



Ionia, Sanilac and Oceana Counties, 1921. To ascertain the 

 relative effects of nitrogen, phosphoric acid, potash and sulphur 

 on yields of crops of canning peas. 



Graham Experiment Station, 1920. Variety and strain test 

 of strawberries. 



East Lansing, 1916. Testing new varieties of sweet corn, 

 beans and other standard vegetables. 



East Lansing, 1921. Testing of vegetables and small fruits 

 with overhead irrigation as compared with non-irrigation. 



SMALL FRUIT FERTILIZATION EXPERIMENTS. 



No. 26 Daley's farm. Riverside; Friday Bros., Coloma. To ascertain 

 the response with dewberries; red raspberries and black rasp- 



