✦ LIBER ✦

On the number and size of cross combinations in a breeding programme of self-fertilizing crops

✍ Scribed by K. Yonezawa; H. Yamagata

Publisher: Springer
Year: 1978
Tongue: English
Weight: 243 KB
Volume: 27
Category: Article
ISSN: 0014-2336
DOI: 10.1007/bf00039125

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✦ Synopsis

The number and size of crosses in a breeding programme were discussed to the conclusion that the number of crosses rather than the size of a cross should be increased with a given total population size. The advantage due to this manipulation, however, is relatively small when such genotypes as improved for many (twenty-five or more) loci are to be obtained, or when a high proportion (around 0.1 or more) of available combinations have the potentiality of releasing the objective genotypes. In such a case, the ease with which crossing and cultivation can be carried out becomes the decisive factor.

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