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Particularităţile activităţii regulatorilor
de creştere şi peroxidazei la plantele viticole în funcţie de genotip, acţiunea secetei şi moinelor
Autori:
NEGRU PETRU, ŞIŞCANU GHEORGHE, EREZANU N, POPOVICI ANARezumat:
It was found that in 2007 the high temperatures during grape wintering and durable drought during vegetation caused enhancing the processes of oxidation - reduction in grape varieties with reduced resistance to drought. This was the reaction of their adaptation to water and thermal stress. The varieties with higher resistant to frost a responding to action of negatives temperatures by increasing the activity of inhibitors. The warming during wintering generates the reduction processes of oxidation - reduction, diminution the activity of inhibitors and the frost resistance of grape plants. Artificially created low temperatures are inducing sudden increase of the processes of oxidation – reduction, which is a plants adapting response to frost. This reaction was less pronounced for plants with vigorous growth.Исследовали особенности активности регуляторов роста и пероксидазы у растений четырёх сортов винограда подвергнутых длительной засухи во время вегетации и оттепелей в зимний период. Показано, что засуха и низкие отрицательные температуры провоцируют интенсификацию окислительно – востоновительных процессов и повышение активности ингибиторов роста, которая более выражена у сортов с меньшей засухоустойчивостью. Длительные оттепели зимнего периода индуцируют снижение активности пероксидазы, ингибиторов роста и устойчивость растений к отрицательным температурам. Эти процессы более выражены у сильнорослых сортов.Domenii:
BiologieNumărul:
2 (305)Anul:
2008Descarcă
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