A procedure for combining a quantitative inheritance study with the first cycle of a breeding program

✍ Scribed by M. J. Bassett; F. E. Woods

• Book ID: 104617860
• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 588 KB
• Volume: 27
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00039145

✦ Synopsis

The number of effective factors controlling the inheritance of a quantitative character can be estimated by analysis of FS lines where the parental lines are homozygous. The procedure is illustrated with data from a study of pod length inheritance in common bean (Phaseolus vulgaris L.). The mean pod length of 'Sprite', the parent with longer pods, was compared statistically with the means of FJ progenies derived from FZ plants obtained from the appropriate tail of the Fz frequency distribution for pod length. The data indicate that analysis of F3 progenies avoids much of the underestimation of the effective factor number which is characteristic of other procedures. The number of effective factors was estimated to be a minimum of 4 and the correlation between random FZ parents and FB progeny means was r = 0.82.