Aquatic Weeds : Utility and Development

Aquatic Weeds : Utility and Development
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Aquatic Weeds : Utility and Development

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Publisher: Agrobios Publications
ISBN: 9788177540307
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Editors Preface Water is the integral constituent of life and one of the most important natural resources. The present domain of life existing on the earth has evolved from water. A multitude of life forms, particularly plant species, is totally dependent on water to carry out its vital functions. Nevertheless, they are superficially treated, rather some what neglected, in the publications of plant biology. The plant community of stoloniferous floating aquatic weeds, forming vast impenetrable floating mats in natural waters, canals, lakes, rivers and other water bodies, has created a nuisance, since it blocks drainage, channels and renders navigation and fishing almost impossible. In some parts of the world, aquatic weeds are spreading at an alarming rate obviously it has become a serious concern to the governments of many countries and international agencies. Besides, concomitant financial losses incurred by farmers, traders and the departments dealing with fisheries and public health are often considerable. Efforts have been made to combat them with chemical weapons and mechanical devices. The menace of aquatic weeds can be overcome by their utilization in a number of ways. After all, aquatic plants constitute an integral component of an aquatic ecosystem. They may serve as a good source of food to the mankind, a palatable feed to the water birds and animals, thus forming a base for aquatic wildlife conservation practices. Aquatic weeds, like terrestrial plants, are capable of trapping the solar radiations and thus serve as a potential source of energy. They may also serve as a good source
of fertilizers. Some of the aquatic plants are being cultivated for their astonishing diversity of medicinal and aesthetic values. The immense admiration of the beautiful flowers of lotus and water lilies is reflected in the ancient architecture, paintings and poems. In Indian mythology the sacred lotus, a common aquatic weed, has been regarded as a symbol of cosmic creativeness. In the present monograph, the author has endeavored to reveal the facts about the utility and development for farmers, traders, industrialists and those who are directly or indirectly concerned with weed management, irrigation and fisheries. She has incorporated the latest information from a number of national and international journals and other publications. Bikaner
Editors
Author s Preface Homo sapiens or man, according to some archaeologists, appeared on this earth 3 million years ago. Many formidable species had appeared flourished, and then disappeared, before the appearance of man. Early man was inadequately equipped to protect himself from hostile environment and from the stronger for mid able predators. Inspite of his weakness the single characteristic that saved man from extinction was his brain power-his ability to