Le risorse genetiche vegetali. I. Principi, realtà, problemi

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Abstract
Plant genetic resources. I. The problem of the conservation of plant genetic resources emerges from the examination of the consequences of the genetic erosion and of the destruction of genetic variability, which provoke decline and disappearance of plant species, of agricultural value too. Information are given on species and primitive or local varieties desappeared or threatened by destruction, on the emergency situation already existing in various areas, including also centres of origin and diversification, and on the risks of a plant breeding work manipulating a reduced genetic basis. Thus, it is crucial to collect and maintain an abundant germplasm of the main crops, as well as of those species of minor agricultural importance. It is wise also to pay attention to plant species of potential value as new food crops or as sources for industrial pharmaceutical or pesticide products or other products with specific chemical properties. Finally, the author underlines the urgent need, for the future progress of agriculture and for the benefit of the mankind, to safeguard plant genetic resources, which must be considered as essential part of the problem of the conservation of the nature and of its resources.

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