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Full-Text Articles in Life Sciences
Molecular-Marker-Facilitated Investigations Of Quantitative-Trait Loci In Maize. I. Numbers, Genomic Distribution And Types Of Gene Action, Jonathan F. Wendel, M. D. Edwards, Charles W. Stuber
Molecular-Marker-Facilitated Investigations Of Quantitative-Trait Loci In Maize. I. Numbers, Genomic Distribution And Types Of Gene Action, Jonathan F. Wendel, M. D. Edwards, Charles W. Stuber
Jonathan F. Wendel
Individual genetic factors which underlie variation in quantitative traits of maize were investigated in each of two F 2 populations by examining the mean trait expressions of genotypic classes at each of 17-20 segregating marker loci. It was demonstrated that the trait expression of marker locus classes could be interpreted in terms of genetic behavior at linked quantitative trait loci (QTLs). For each of 82 traits evaluated, QTLs were detected and located to genomic sites. The numbers of detected factors varied according to trait, with the average trait significantly influenced by almost two-thirds of the marked genomic sites. Most of …
Application Of Urea Phosphate And Urea Sulfate To Drip-Irrigated Tomatoes Grown In Calcareous Soil, Robert Mikkelsen, Wesley Jarrell
Application Of Urea Phosphate And Urea Sulfate To Drip-Irrigated Tomatoes Grown In Calcareous Soil, Robert Mikkelsen, Wesley Jarrell
Robert Mikkelsen
The potential benefit of acid applied through drip urrigation on soil nutrient availability, plant nutrition, and yield was studied. Tomatoes (Lycopersicon esculentum Mill., cv. Better Boy) were grown in a P-deficient calcareous loam soil in 114-L plastic-lined cans. Phosphorus was added weekly through drip irrigation as urea phosphate (UP) (17-19-0) at four concentrations (0, 20, 40, 80 kg P/ha). Two other treatments entailed 40 kg P/ha soil-banded triple superphosphate (TSP) (0-20-0) with or without the addition of drip applied urea sulfate (US) (15-0-0-16). Urea sulfate was added at the rate equivalent to the titratable acidity of the 40 kg UP-P/ha …
Forage Quality Of Perennial Glandular-Haired And Eglandular Medicago Populations, Andrew W. Lenssen
Forage Quality Of Perennial Glandular-Haired And Eglandular Medicago Populations, Andrew W. Lenssen
Andrew W. Lenssen
No abstract provided.