Determination of Crispness Potentials and Growth of Production Materials Suffered by Loss of Different Levels of Relative Humidity in Viticulture

This research was carried out aimed to determine the crispness potentials and growth of production materials suffered by loss of different levels of relative humidity in arboriculture during the years 2013 and 2014. In this research, the rootstock cuttings of ‘Amasya Beyazi' and ‘140Ru' were used as plant materials. The cuttings of Amasya Beyazi were obtained from 'COMU Dardanos Campus' ‘Table Grape Varieties Research and Application Center' while the cuttings of 140Ru have been taken from ‘Manisa and Tekirdag Viticulture Research Stations'. The used scion and cuttings have been placed in the climatic chamber of ‘Çanakkale Onsekiz Mart University (ÇOMÜ), Faculty of Agriculture' under room conditions (22°C) suffered by the loss of moisture with rating to 5%, 10%, 15% and 20%. Weekly based water consumption and the condition of summer shoot growth (0–5) like parameters have been investigated in sustained scion and cuttings throughout their vegetative development. Then the rooting rate (%), number of root (number), scale of root (0–4), wet weight of root (g), number of leaf node (number), summer shoot weight (g), summer shoot length (cm), weight of scion (g), percentage of top callus formation (%), development scale of top callus (0–5) and wet weight of top callus (g) of scion and cuttings have been studied in performed dismantling of production materials during the paused timing of vegetative growth. After evaluation of the whole results, a decrease was observed in the development of production materials and crispness potentials when an increase of moisture loss was shown in parameters like rate of root (%), number of root (number), root scale (0–4), wet weight of root (g), number of node (number), wet weight of shoots (g), length of shoot (cm), scion weight (g), percentage of top callus formation (%), development scale of top callus (0–5), wet weight of top callus (g), amount of water consumption and condition of shoot growth (0–5). According to the obtained results of this research work, the least vegetative growth of scion and cuttings was occurred in such production materials that suffered with a ratio of 20% moisture loss in terms of all above mentioned parameters. This was followed by those production materials suffered with the rate of 15% moisture loss. Significant differences have not been investigated in order to vegetative development and crispness, as compared to the control, in production materials suffered by 5% and 10% moisture loss. So, the development of production materials having adequate moisture is expected to lead more positive results. 15% moisture loss is need to be considered in terms of scion as well as cuttings should be an important limit value. It must be taken in care to overcome the loss of 10% relative humidity in the production materials.