Archive image from page 740 of Cyclopedia of farm crops . Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada cyclopediaoffarm00bailuoft Year: 1922, c1907 WHEAT WHEAT 667 not been properly timed and cross-fertilization has not followed. By making several identical crosses a sufficient number of seeds can be secured for further plantings. Various methods of growing such seed are sug- gested. Whatever the method followed, it should permit of the greatest possible development of the plants from each individual seed. It will be found that a
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Archive image from page 740 of Cyclopedia of farm crops . Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada cyclopediaoffarm00bailuoft Year: 1922, c1907 WHEAT WHEAT 667 not been properly timed and cross-fertilization has not followed. By making several identical crosses a sufficient number of seeds can be secured for further plantings. Various methods of growing such seed are sug- gested. Whatever the method followed, it should permit of the greatest possible development of the plants from each individual seed. It will be found that a great difference will appear in the plants succeeding from the first cross. A close study of these will reveal that only certain ones will pos- sess the characters desired, and when these are planted and another generation secured, some will be found to reproduce as fixed types while others will show an unstable character. It is generally conceded by wheat-breeders that four to five years are necessary firmly to fix any desired type so that it will reproduce itself perfectly. Selection.âIt is jjossible from a single cross to secure a considei-able number of new varieties. As soon as these are secured they must be carefully studied before being finally selected as desirable types. This study may reveal that further crossing with either of the parents or other types is needed to effect the improvement desired. In fact, many of the standard pedigreed wheats of the country are the product of successive crosses and inbreed- ing. This is well illustrated in the well-known variety, Genesee Giant, which is the result of no less than eight successive cross-fertilizations. This process increases the necessity for the important work of selection since the variations secured are so numerous. Selection must begin with the individual plants. From these may be chosen the best and most per- fect heads. In any number of plants which are the result of a single cross the most vigorous and pro-