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This book gives a comprehensive account of the biology and ecology of rivers. It has chapters dealing with the physical properties of rivers; interaction of river water with ground water; presence of viruses, bacteria, algae, fungi, higher plants and animals in rivers; downstream gradients in river and the type of fish; fishes of swamp and marsh; food webs in rivers; physical and chemical properties of the habitats like visible radiations, nutrients, dissolved ...
A considerable amount of research work has been done on diseases of greengram and blackgram during last thirty years and a lot has to be done. The information generated is lying scattered and is not available to the scientists working on this aspect. There has been a long felt urgent need of compiling this information for accelerating the research and saving these important pulse crops from diseases. This book is a comprehensive and critical review of the world ...
This book is the compilation of the world literature on diseases of pigeonpea, an important pulse crop of the Indian subcontinent, Africa, Australia and South America. The compilation has been made from various research journals, research reports, magazines, periodicals, bulletins, etc. The content of the book is presented in 10 chapters namely – Introduction, Fungal diseases of root and stem, Fungal diseases of foliage, Diseases caused by bacteria, Diseases ...
Contents: Preface. I. Introduction. II. Culturable fish: 1. Desirable characteristics in a cultured organism. 2. Fresh water fishes. 3. Salt water fishes. 4. Exotic fishes. 5. Major carps. III. Fish breeding: 1. Type of breeding. 2. Fish seed collection from natural resources. 3. Construction of fish seed farm. 4. Fish seed production by induced breeding. 5. Hatchings. 6. Rearing of spawn. 7. Assessment of quantity. 8. Size for stocking and harvesting. 9. Quality ...