BACKGROUND Arbutus unedo is a valuable Mediterranean shrub as an ornamental plant as well as fruit tree. Fresh fruits of A. unedo are a good source of antioxidants, of vitamins C, E and carotenoids and also are characterized by the high content of mineral elements. MATERIALS AND METHODS The effects of gibberellic acid (GA3) and cold stratification (CS) on seed germination performance were inv...

Gentiana lutea L. is widely used in bitter beverages and in medicine; Gentianae Radix is the pharmaceutical name of the root of G. lutea. These uses have generated a high demand. The wild populations of Gentiana lutea var. aurantiaca (M. Laínz) M. Laínz have been decimated; it is necessary to establish guidelines for its cultivation. Gentian as most alpine species has dormant seeds. Dormancy ca...

Dormancy and germination requirements were investigated in seeds of Ferula gummosa Boiss (Apiaceae) and Teucrium polium L. (Labiatae). Seeds of both species were subjected to different treatments including various levels of GA3, HNO3, H2SO4, chilling and soaking with water at different temperatures. Germination of both species increased at higher concentrations of GA3. In the case of F. gummosa...

Plant growth studies involve seed germination studies and this depends on storage viability and dormancy aspects besides essential requirements and factors for the same. Of the various factors regulations plant growth and developmental processes intrinsic factors play a significant role. Plant hormones are chemicals that regulate plant growth. These occur in extremely low concentrations and inf...

Medicinal and pesticidal plant propagation is hampered by poor seed germination due to dormancy. This study aimed enhance seedling growth using various pre-sowing treatments. A triplicated two-factor experiment in a Randomized Complete Block design was used. Soaking water at 25°C for 24 h (T1), soaking 60°C hot 10 min (T2), ppm Potassium nitrate (KNO3) treatment (T3), 20 (T4), Treating ...

OBJECTIVE This study evaluated the effects of three post-brushing mouthwashes containing 0 ppm F, 225 ppm F, and 500 ppm F, respectively, on salivary fluoride retention after brushing with 1450 ppm fluoride (as NaF) toothpaste and rinsing with water immediately after brushing. METHODS In this three-phase, randomized, cross-over study, an ion-specific electrode was used to measure salivary F l...

Background: Plant growth regulators (PGRs) have important roles in many processes such as germination, seedling growth, nutrition uptake, morphogenesis, ripening, etc. Objective: This study aimed to evaluate the effect of gibberellic acid, indole butyric acid, and methanol as plant growth regulators on morpho-physiological and phytochemical features in Thymus vulgaris L. Methods: The farm...

Purpose: The study aimed to overcome the seed dormancy of Datura stramonium L. by chemical scarification, pre-chilling, and different gibberellic acid (GA3) levels.
 Materials Methods: seeds were prechilled at 4°C 10°C for 7 days treated with sulfuric (97-98% H2SO4) 15 minutes, increasing doses GA3 (250, 500, 1000 ppm). Distilled water hydration untreated served as a control.
 Results...

Gamma-linoleic acid in the seed oil of evening primrose makes it nutritionally and pharmaceutically valuable. If evening primrose wants to be cultivated as an annual plant, sowing time is important. By the late sowing and depends to time most plants do not produce flower stem and stay in rosette stage until next spring. To solve this problem, the present study was performed. Seedling were trans...

The farmers have widely used vegetative propagation of plants due to the low germination percentage seeds various plant species. So study asexual technique Populus deltoides, present was conducted where a number stem cuttings Poplar were treated with growth hormones: IBA (Indole-3-butyric acid), NAA (1-Naphthaleneacetic acid) and GA3 (Gibberellic at different concentrations (100 ppm, 200 ppm 30...