. The cereals in America. Grain. 66 THE CEREALS IN AMERICA A Study of Artificial Hybrids. Per cent of purity 1895 1896 1897 1898 1899 Pure .... Pure . . , . 37-5 37-5 43-75 43-75 â 3-125 â Graphic expression of the results of an experiment in developing from a single hybrid plant No. 1814 (pro- duced by crossing a plant of Fife with one of Blue Stem), two varieties, one having smooth and the other hairy chaff. (After Hays.) Since wheat hybrids naturally self-pollinate, it would be ex- pected that they would follow t
. The cereals in America. Grain. 66 THE CEREALS IN AMERICA A Study of Artificial Hybrids. Per cent of purity 1895 1896 1897 1898 1899 Pure .... Pure . . , . 37-5 37-5 43-75 43-75 â 3-125 â Graphic expression of the results of an experiment in developing from a single hybrid plant No. 1814 (pro- duced by crossing a plant of Fife with one of Blue Stem), two varieties, one having smooth and the other hairy chaff. (After Hays.) Since wheat hybrids naturally self-pollinate, it would be ex- pected that they would follow the same law, and Spillman found this to be the case. Hays reduced some hybrids to uniform type in four genera- tions. His hybrid varieties based on single mother plants of the fourth genera- tion breed true to the botanical types of the mother plant. Whether the corre- lated characteristics combined in making up the unit of higher value per acre will continue their united excellence has been questioned. Hays' experience indicates that at least a part of the hybrids which show most vigor in value per acre during the first several years after the hybrids are formed will continue to yield well of good grain. Mendel's results add assurance to the hope that at least part of the complex compound of characters formed in producing a lot of wheat hybrids will remain stable. Hybrids made by Saunders, Hays and others and widely dis- tributed retain their characteristics apparently unchanged. 108. Method of Finding and Testing New Strains or Varieties. â âThe methods of improving wheat by experiment and seed sta- tions now recognize the individual wheat plant as the unit from which selections are made. From whatever source the seed is 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunt, Thomas Forsyth, 1862-1927
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Keywords: ., bookauthorhuntthom, bookcentury1900, bookdecade1900, bookyear1904
