Mojtaba Mahmoudi
Abstract
In order to investigate the effect of drought stress on vegetative growth and physiological characteristics of Damask rose, a factorial potted experiment was conducted in a randomized ...
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In order to investigate the effect of drought stress on vegetative growth and physiological characteristics of Damask rose, a factorial potted experiment was conducted in a randomized complete block design with three replicates. Treatments include three levels of Nanozeolite and four Irrigation intervals, which were performed in a roofed space with sufficient light. After determining the field capacity and soil wilting point, the reference weight was determined in terms of field capacity, and drought treatments were applied based on soil moisture. Various morphological factors, including diameter growth, seedling height, leaf number, leaf area, and aerial and terrestrial biomass were determined after applying stress. The results indicated that the highest total plant weight and shoot dry weight were obtained in 10g Nanozeolite treatment and irrigation interval four days. The interaction effect of Nanozeolite and irrigation intervals on fresh and dry leaf weight was significant and reached its maximum in 10g Nanozeolite and irrigation interval four days treatments. Nanozeolite affected the number, length, volume, and dry weight of Damask rose root significantly, and consumption of 10g of Nanozeolite improved these traits. Irrigation intervals significantly affected all measured traits except shoot dry weight, the number of roots, plant height, and leaf relative water content. In general, it can be concluded that the use of Nanozeolite in low concentrations has improved growth indices and the application beyond the desired limit for the drought-tolerant Damask rose plant has adverse effects.
