Articles
STUDIES ON THE RELATIONSHIP BETWEEN THE CHEMICAL COMPOUNDS AND THE RESISTANCE TO THE ATTACK BY THE FUNGUS STEREUM PURPUREUM (PERS EX FR) IN SOME APRICOT CULTIVARS
Article number
488_106
Pages
655 – 660
Language
Abstract
The existence of the relationships between the chemical composition of the cellular juice obtained from the leaves of six apricot cultivars and the susceptibility of them to the fungus Stereum purpureum has been studied.
The research had in view the determination of the content in polyphenol-oxidase, total phenols, tannins, free amino-acids, dry substance, assimilate pigments, glucids, and crude proteins during two periods of vegetation.
The results have evinced that there is a directly proportional relationship between the content in polyphenol-oxidase, tannoid substances, phenol substances, dry substance, glucids and the resistance of cultivars to the attack by Stereum purpureum.
On the contrary, an inversely proportional relation between the resistance to the attack and the content in free amino-acids, water, assimilate pigments and crude protein was observed.
Publication
Authors
M. Trandafirescu, A. Indreias
Keywords
polyphenol-oxidase, phenols, tannins, free amino-acids, photo-assimilate pigments, resistance, cultivars
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