Breeding enhanced nitrogen fixation (4 Ergebnisse)

Hardbound. Zustand: As New. New. Contents Acknowledge. Preface. Introduction. 1. Genetics of non nodulation a reappraisal. 2. Host genotype rhizobium strain and host x strain interaction on symbiotic performance comparison of glasshouse and field studies. 3. Evaluation of parental genotypes for N2 fixation and yield. 4. Combining ability and heterosis for N2 fixing characters and yield in groundnut. 5. Breeding host genotypes for increased N2 fixation under high and low nitrogen conditions. 6. Planting density and nitrogen fixation. 7. Defoliation and nitrogen fixation. 8. Influence of low levels of nitrogen on growth nitrogen fixation and yield of high low cross derivatives. 9. Seasonal variation in nitrogen assimilation and nitrogen fixation in groundnut. Epilogue. Symbiotic nitrogen fixation has special significance from the point of view of sustainable agriculture as it contributes towards a pollution free environment which is the crying need of the hour due to the threat of impending climate change. Efforts on breeding for improved nitrogen fixation in grain legumes are an extremely rare subject. This book on Breeding for Enhanced Nitrogen Fixation in Groundnut fulfills the long felt need in this important but hitherto neglected area. The book is a pioneering study on this rare subject and brings out strategic findings derived from authentic field studies conducted over several years in an international research institute. The book will not only be catering to the needs of researchers and policy makers but students of nitrogen fixation as well. 132 pp.…

Zustand: New. In English.

Paperback. Zustand: Brand New. 188 pages. 9.50x6.30x0.50 inches. In Stock.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Adequate nitrogen fertilization is needed to obtain maximum crop yields. Without sufficient nitrogen available to the plant, other inputs are wasted. There are great differences between developed and develop ing areas of the world with regard to nitrogen-fertilizer production and application, resulting in serious food deficits in some of the most needy areas. Although nitrogen fertilizer is an inexpensive input in comparison to the resulting yield increases, chemical fertilizers must be purchased and do represent a direct cash outlay, sometimes the only cash require ment for the peasant farmer, often an insurmountable obstacle in subsistence farming situations. If present economic trends continue, poor farmers may find it increasingly more difficult to pay for nitrogen fertilizers. Biological nitrogen fixation offers the most promising alternative or supplement to chemical nitrogen fertilizers. Furthermore, nitrogen fixation does not present any hazard to the environment which may be the case with excessive application of chemical nitrogen fertilizers. It is there fore of utmost importance to promote the use of nitrogen fixing crops, especially grain legumes which are also an important source of dietary protein. Although legumes only account for some 9% of the combined world dry matter yield of cereals and legumes, they con stitute as much as 24% of the total protein yield of these crops because of the high protein content in legumes.…