OCR Text |
Show Hybrid Corn Raises National Acre Yield Ease of Harvesting Proves Advantageous THE production of record corn crops during the war years has been strongly influenced by the use of hybrid seed corn In important growing areas. Hybrid varieties, along with good growing weather, it is pointed out by the department of agriculture, have been major factors in raising the national acre yield of corn from an average of 25.8 bushels to 32.S fe-' t " bushels. Nearly 52 per cent of the corn acreage was planted to hybrid Varieties. Very few barren plants are found In a field of hybrid corn, and a much smaller per cent of nubbins. Hybrid Hy-brid corn bears ears at a more uniform uni-form height than open-pollinated corn, and the plants stand up better under husking operations. Agronomists emphasize that hybrid hy-brid seed corn will not produce yields In spite of poor soil and poor culture. Where fertility or moisture is available for an acre yield of no more than 20 bushels of corn this condition con-dition is a limiting factor for both types. Some hybrids show decided resistance resist-ance to disease, and several tend toward Immunity to chinch bugs and corn root worm. Resistance to the European corn borer and to the corn ear worm has also been found. |