Genetic Improvement of Field Crops

Front Cover
CRC Press, Oct 7, 1993 - Technology & Engineering - 488 pages
Outlining successful breeding techniques to augment the yields of the world's major crops, this reference analyzes the physiological and genetic basis for past and potential future increases in crop yields.;Covering crops with wide differences in morphology, photosynthetic rates, and nitrogen metabolisms, Genetic Improvement of Field Crops: investigates the changes produced by breeders in the physiological attributes affecting wheat grain yield and nitrogen content during the last century; discusses those crop characteristics of oats that have already been altered or might be manipulated through breeding to further increase yield potential; describes several genetic factors responsible for both yield potential and stress resistance in barley; offers insights into the relationship between increases in the yield potential and stress tolerance of corn; examines the evolution of sunflower crop yields and yield stability and estimates the contribution of improved cultivars; evaluates the effects of breeding on tuber characteristics related to the crop growth and yield of the potato; elucidates the possibilities for simultaneous improvement of yield and fiber strength in cotton; and identifies the features to be considered in the development of high yielding varieties of rice for different agricultural systems.;Providing nearly 1600 key literature citations allowing further in-depth study of particular topics, Genetic Improvement of Field Crops is for plant physiologists and breeders, crop and agricultural scientists, agronomists, biochemists, geneticists, biotechnologists, microbiologists, and upper-level undergraduate and graduate students in these disciplines.

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Contents

Genetic Gains and Associated
69
Progress in Barley Breeding
95
Crosses and Selection Methods
135
Conclusions
159
Physiological Basis of the Genetic Improvement of Corn
183
The Crop Canopy
202
The Leaf Level
209
Physiological Attributes
237
Upland Cotton Yields in the United States
333
Estimating Genetic and Environment Components of Yield
335
Yield Compenents Responsible for Increased Lint Production
353
Conclusion
354
References
357
Genetic Improvement and Associated Physiological Changes in the Potato
361
General Improvements in Tuber Yield
364
Tuber Characteristics Related to Potential Crop Growth and Yield Modified Through Plant Breeding
367

Photosynthesis and Associated Traits
243
1
244
43
275
73
281
Physiological Characteristics Related to Yield Improvement
287
Strategies for Further Improvement
305
Genetic Contributions to Yield in Cotton
321
Cotton Development in the United States
322
Cotton Development in Other Countries
323
Development of ExtraLong Staple Cottons
325
Cotton Breeding
327
Importance of Fiber Quality
329
Simultaneous Improvement of Yield and Fiber Strength in Cotton
330
Crop Characteristics Modified by Breeding and Guidelines for Further Increases in Tuber Yield
374
Concluding Remarks
392
References
393
Genetic Improvement in Physiological Traits of Rice Yield
413
Varietal Improvement
414
Relationship of Physiological Traits to Yield
417
828
428
Resistance to Insect Pests
437
Potential for High Yield
444
References
445
Index
457
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