TESTS IN MARYLAND. 



15 



Table II. — Tests of parent varieties and first-generation crosses of corn — Continued. 



At Pike Crossing, Md.— Continued. 



1 1909 seed substituted for original seed. 



Table II shows the usual inexplicable variations of test-plat work. 

 Especially do such variations occur in the duplicate planting at Pike 

 Crossing where the soil was so deplete of humus that from a fuiancial 

 standpoint the crop was a failure. Under these very adverse con- 

 ditions it is rather surprising that the results accord with those of 

 the other three tests as well as they do. 



COMPARATIVE PRODUCTIVENESS OP SEEDS OP 1908 AND 1909. 



Table II shows 42 instances in which the 1908 seed and 1909 seed 

 of the male parent were planted in adjacent rows. In 33 of these 

 42 instances the 1909 seed produced the better, in five the 1908 



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