Evidenţierea particularităţilor activităţii fotosintezei şi respiraţiei în funcţie de geneza lăstarilor, amplasarea frunzelor pe lungimea acestora şi acţiunea condiţiilor meteorologice în ambianţa cu rezistenţa la ger a plantelor viticole
2013
Negru, P. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova) | Voronţov, V. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova) | Popovici, A. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova)
In the second half of vegetation period of plants growing in severe drought conditions the highest activity of photosynthesis and photorespiration was recorded in last mature leaves of Aligote variety shoots and in the middle part of shoots of the adherents of Cardinal variety in relation to the principals. We consider that the higher activity of these leaves in this period contribute to the accumulation in grapes the saccharides as well as the reserve substances necessary in plant preparation for wintering: and the photorespiration – to the protection of photosynthetic apparatus from destructive exposure of light in case of CO2 insufficiency (during drought) in leaves, and also to the formation of very important intermediary compounds (glycine, serine).
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