Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Grigore-Valentin BELENIUC, Nicolae GIUGEA, Georgeta BELENIUC
The viability and fertility of the vine varieties from the plantations of Istria viticol Center were studied, according to the climatic conditions in the period of years 2017-2018. In the year 2017, the winter began gentle, with high temperatures for this time of year, in November was between +1 up to +12.3°C, and in December between minus 2.3°C up to +12.0°C. In the first half of January 2018, the temperature was positive (0-11°C), and in the second half, this decreased to a minimum of minus 20°C on January 28. In February 2018, the temperature was extremely low, between minus 22°C on February 2-nd and minus 20.5°C on February 10. Before the frost, from January 20, in the laboratory of Horticultural faculty from Ovidius University, were analyzed the fruit shoots and found normal values of viability and fertility of winter buds, values characteristic of each analyzed vine variety, but shortly after freezing, were reanalyzed the shoots from the same varieties and we have seen that these have suffered lost of winter buds, the percentage being between 27-56.25 %. For this reason in spring, when the vine is cut, the lost buds must be properly compensated, for the production to be ensured.
[Read full article] [Citation]
