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[Текст] : proc. of the Second Long Ashton Research Station University of Bristol 25-28 March 1969 / Ed. by L.C. Luckwill and C.V. Cutting. - London ; New York : Academic Press, 1970. - 382 с. : ил, табл. - Библиогр. в конце ст. - ISBN 12-199950-5 : 33.10 р.

УДК

58

Аннотация: From the earliest times trees have formed part of man's environment, providing him with sources of raw materials, food and drink. The most useful species have been brought into cultivation and grown as crop plants. By breeding and selection, improved strains have been developed, methods of propagation worked out and, largely by trial and erroer, the most suitable cultural conditions for each species have been dicovered. Such empirical methods of crop improvement have served in the past, now the stage when further major advances in the culture of tree crops will demand a much deeper understanding of the physiology of woody perennial species.Such were the themes discussed at the Second Long Ashton Symposium

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