Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"generation means"”.
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Epistasis for agronomic traits in elite maize hybrids
… epistasis was measured with a modified generation means model using testcrosses. The non-epistatic model included components for the main effect and an additive effect. In addition to these terms, the epistatic model included an additive-by-additive epistatic component. Six progeny …
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Inheritance of Resistance to Tobacco Cyst Nematode Globodera tabacum solanacearum
… cm3 of soil were counted from each transplant. Generation means analyses were performed. Additive and dominance gene action play an important role in resistance to TCN in Coker 371 Gold and Kutsaga 110. F2 generation data from the Coker 371 Gold cross fit a 3:1 (resistant:susceptible) …
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Ploidy Level Effects and Effects of Inbreeding on Single and Double Cross Performance in Autotetraploid Maize
… of performance than SC's, (2) for most traits generation means were ordered as predicted based on the coefficient of inbreeding (S$\sb1$DC $>$ S$\sb3$DC $>$ S$\sb1$SC $>$ S$\sb3$SC), and (3) the difference between SC and DC means increased as inbreeding of the parents increased. Deviations from …
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Evaluation of additive and nonadditive genetic variation in elite maize germplasm for root, shoot, and ear characteristics
… and two public inbreds were evaluated with a generation means design emanating from the diallel cross of the 12 parents. Parental inbreds, F1 hybrids, and segregating F1 derived F2 populations were phenotyped for an extensive number of leaf, tassel, and ear traits, including yield (Chapter 1). …
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The taxation of 'Influencers' in South Africa and in an international context
… for understanding the activities and income generation means of Influencers, this document delves into an exploration of the local and international tax implications for these individuals. In the local context, an examination of current South African tax laws applicable to Influencers is …
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Behaviour of epoxy filled flat-face joints in concrete for wave energy converters
… over the past decade, problems with intermittent generation means that more reliable technologies are necessary. Of these wave power is particularly attractive as it can be reliably predicted. Although wave energy convertors (WEC) have existed for decades none has achieved significant commercial …
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Development of a Kinetic Model for Low Temperature Fischer-Tropsch Synthesis
… plants, the high cost of syngas generation means that FT synthesis should use syngas as efficiently as possible. This requires an effective description of the FT reaction kinetics. This study therefore focuses on the development of a kinetic model for low temperature FT (LTFT) …