208 Missouri Agricultural Report. 



At the top of the list it will be noted are six leading varieties of 

 corn where Iowa and Illinois grown seed are compared with Nebraska 

 grown seed. In every case the Nebraska grown seed has yielded the 

 best by a margin of three to nine bushels per acre. This difference in 

 favor of home grown seed is probably due to the fact that in moving 

 corn from Illinois with its heavier soil, greater rainfall and more humid 

 air, to Nebraska, with an entirely different soil, less rainfall and a much 

 drier air, the corn suffers by the oliange. It takes some years before it 

 is thoroughly acclimated, and can yield as' well as home grown corn. 

 We will also find the same difference grown in Eastern, Western and 

 Central Nebraska. Seed of two varieties, Nebraska White Prize and 

 Silver Minef was obtained from Saline county, Nebraska, about twenty 

 miles from the Experiment Station, and from Washington county, which 

 is one of the river counties. In both cases the Saline county corn 

 outyielded the other, due to the fact that it was grown under conditions 

 of soil and climate more like those at the Experiment Station, In an- 

 other case, Iowa Gold Mine from Buffalo and Washington counties was 

 grown side by side, giving very much increased yield from the Buffalo 

 county seed. 



Another striking example of the effect of acclimatization is shown 

 by some results secured with show corn from the National Corn Show 

 at Omaha — the results of which are shown in the following table : 



ACCLIMATIZATION OF CORN. 



Comparison of unacclimated corn with native varieties : 



Yield in bu. 

 per acre. 

 Five prize winning exhibits from National Corn Show in 1908. Grown in Illinois, 



Indiana and Ohio 39 . 8 



Five standard varieties of well selected corn from Nebraska growers 45.6 



Seven lots of Native Corn secured from farmers near the Experiment Station 48 . 8 



The five plants of show corn were from prize winning samples but 

 practically all of them came from Iowa, Illinois and Indiana. While 

 these were fine specimens, and undoubtedly very productive corn on the 

 farms on which they were grown, yet they gave an average yield of 

 39.8 bushels at Lincoln. The six varieties of corn secured from Nebraska 

 growers, and all of them improved strains of corn, averaged 45.4 

 bushels, an increase of 6.4 bushels per acre from the Nebraska grown 

 strains of improved corn. A set of corn secured from farmers in the 

 neighborhood of the Experiment Station averaged 48 bushels, this being 

 an increase over the corn secured from the best growers in the State. 

 I think, however, the difference in yield represented the difference of 



