Front Cover; Advances in Agronomy, Volume 46; Copyright Page; Contents; Contributors; Preface; Chapter 1. Influence of Soil Macroporosity on Environmental Quality; I. Introduction; II. Macroporosity: Morphological and Physical Characterization; III. Effects of Macropores on Solute Movement; IV. Methods to Study Macropore Flow; V. Field Studies on Macropore Flow and Environmental Quality; VI. Conclusions; References; Chapter 2. DNA Markers in Plant Improvement; I. Introduction: Agricultural Genetics and DNA Markers; II. How and Why are Genetic Maps Made?
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Chapter 6. Genetic Improvement of Maize YieldsI. Introduction; II. Genetic Gains in Grain Yield; III. Genetic Gain: Stress versus Nonstress Environments; IV. Response to Increase in Plant Density and Nitrogen Fertility; V. Changes in Other Plant Traits; VI. Genetic Gains via Recurrent Selection in Populations; VII. Improvement of Inbred Lines; VIII. Future Trends; References; Index.
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III. Using Genetic Markers to Study and Improve Agricultural ProductivityIV. Describing Individual Quantitative Trait Loci; V. Cumulative Effects of Many Quantitative Trait Loci on Phenotype of InIndividual; VI. Improving the Efficiency of Breeding Programs; VII. Marker-Facilitated Study of Complex Populations; VIII. Marker-Facilitated Study of Polyploids; IX. Utilization of Exotic Germplasm in Crop Improvement; X. Revealing Evolutionary Relationships among Crop Species and Their Wild Relatives-Utility in Comparative Genetic Mapping; XI. Cloning Genes from Map Position?
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VI. Phenolic-Carbohydrate ComplexesVII. Plant Morphology and Anatomy; VIII. Forage Quality-Animal Response; IX. Biotechnology Potential; X. Summary and Conclusions; References; Chapter 5. Measurement of Surface Charge of Inorganic Geologic Materials: Techniques and Their Consequences; I. Introduction; II. Surface Charge Terminology; III. Surface Charge Development; IV. Measurement of Surface Charge; V. Separating Permanent and Variable Charge; VI. Measurement Problems; VII. Applications and Predictions for Composite Materials; VIII. Summary; References.
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XII. Challenges for the Future?XIII. Conclusion; References; Chapter 3. Soil Science Applications of Nuclear Magnetic Resonance Spectroscopy; I. Introduction and Overview; II. A Layman's View of Modern NMR Spectroscopy; III. NMR Spectroscopy as an Experiment The Design of NMR Studies; IV. Current Developments and Their Future Implications; V. Conclusions; VI. Appendices; Symbols; References; Chapter 4. Potential of Brown-Midrib Low-Lignin Mutants for Improving Forage Quality; I. Introduction; II. History; III. Genetics; IV. Lignin Biosynthesis; V. Forage Quality-Plant Response.
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SUMMARY OR ABSTRACT
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Under new editorial direction, Advances in Agronomy both continues its long tradition and expands to include innovative methods and technologies. Leading international scientists cover topics in plant and soil sciences, biotechnology, terrestrial ecosystems, and environmental concerns. This volume presents three articles devoted to plant productivity and improvement and three articles devoted to advances in soil science. This and future volumes will be of interest to agronomists in academe, industry, and government. The field of agronomy has changed greatly since the publication of the first volume of Advances in Agronomy in 1949. Many innovations and advances have occurred, yet many challenges remain. Key Features * Influence of soil structure and physical properties on environmental quality * Application of nuclear magnetic resonance spectroscopy to soil chemistry * Use of low-lignin mutants for improving forage quality * Application of DNA markers and genetic strategies to plant improvement.