A comparison between seven analyses methods of diallel crosses in maize (Zea mays, L.) [Egypt]
1985
Nawar, A.A. (Monoufeyah Univ., Shebin El-Kom (Egypt). Faculty of Agriculture)
Seven analysis methods of diallel crosses were compared using the data obtained for different genetic components of grain yield. These methods had been widely used in previous investigation and were applied simultaneously to the same basic population with the one restriction that the number of crosses, in each should be the same. These methods were: The two Griffing's methods model 4 and 2 model-II, the modified diallel cross (Matzinger and Kempthorne method-1965): Gardner's method-1967; the half diallel cross-(Morley Jones- 1965), the diallet cross-method by (Rustem Aksel and Johnson-1959) and the regression method (Wr/Vr)-(method of Jink9 -1954 and dayman-1954 a and b). Thus these analysis methods can be compared on the basis of their return in terms of information yielded, for the same outlay in terms of work involved. For the present investigation, five parental lines of maize were selected and crossed in a diallel series in 1982. In 1983, the 15 populations (10 F1's and 5 parents) were tested in three replications in a completely randomized block design. The data were recorded only on grain yield per plant and silking date. The results were as follows. The genetic analyses which were carried out by different methods of analysis of diallel crosses in general, bring about a similar picture with respect to gene action
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