Diallel analysis of some quantitative characters in tobacco (Nicotiana tabacum L.)
1997
Kara, S.M. (Karadeniz Technical Univ. Faculty of Agriculture, Ordu (Turkey)) | Esendal, E. (Trakya Univ. Faculty of Agriculture, Tekirdag (Turkey))
The mechanism of inheritance of some quantitative characters was studies in a population consisted of six parental tobacco cultivars/lines and their diallel crosses, excluding reciprocals, by using Jinks-Hayman diallel procedure. The analysis indicated the importance of both additive and dominant component of genetic variance for all traits, except for total nitrogen, but the additive component for plant height and the number of leaves and the dominant component for leaf length and leaf width were predominant and total nitrogen was governed by the genes with dominant effect. The degree of dominance estimated to be in the overdominance range for leaf length, leaf width, and total nitrogen. On the other hand, there was an indication of partial dominance for plant height and leaf yield was found to be at least two, while it was one for most of the attributes. Narrow sense heritability estimate was high for total alkaloid, number of leaves, ash content and plant height. For other traits, it was in the range of medium to low
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