فهرست مطالب مرضیه باباش پور اصل

Drought is the most important stress factor that reduces plant growth and yield. However, the application of moisture absorbents may decrease the negative effects of drought. This study aims to investigate the effect of irrigation levels (irrigation after 140, 100, and 70 mm evaporation from pan evaporation) and moisture absorbents (without moisture absorbent, superabsorbent, vermiculite, zeolite, and the combined use of all three moisture absorbents) on yield components and physiological characteristics of safflower (Carthamus tinctorius L. cv. Goldasht). This experiment was performed in 1397 and 1398 as the split-plot design using the randomized complete block design with three replications. Results showed that under 140 mm evaporation due to the severe drought, seed yield and oil yield declined by 36.3% and 46.6%, respectively, as compared to the 70 mm evaporation. As usual, drought increased the malondialdehyde content significantly. Water absorbent treatments increased the grain yield as compared to the control. However, there were no significant differences in the effect of water absorbents on the grain yield but the most effective moisture absorbent to increase the oil yield was zeolite. Oleic and palmitic acids percent increased due to drought, while the amount of linoleic acid decreased with increasing the irrigation intervals. In conclusion, the results showed that the use of moisture absorbents alleviated the adverse effects of drought stress on the safflower yield and some yield components.

The Holy Quran is one of the best reference books describing the importance of plants in different Surahs as in Al-Momeenoon, Al-Rehman, Al-Baqarah and Al-Inaam. The history of Islamic medicine started from 2nd century as applied science which provided ample information about the medicinal plants mentioned in the Quran. These medicinal plants continue to be extensively used as major source of drugs for the treatment of many ailments. In view of the fact that exact nomenclature of many Quranic and Prophetic plants are not available in scientific or religious literature, effort is made to make the following list of such plants with their correct botanical identification. The present research work is a part of check list of medicinal flora and their uses enlisted in Holly Quran.

The genus Artemisia comprises a large number of species, some of which are cultivated commercially in a variety of applications. The high accumulation of essential oils and other terpenoids in certain members of family Asteraceae, such as wormwood (Artemisia absinthium L.), has made them useful as flavorings. Terpenoids and phenolic compounds are also responsible for the medicinal and medical values of many members of this family. The solid-phase microextraction (SPME) is a fast, easy, efficient, highly solvent-free, and easy-to-automate method. In the present study, headspace SPME (HS-SPME) using nanostructured layered double hydroxide coated fiber in combination with gas chromatography-mass spectrometry was utilized as a monitoring technique for the collection and detection of essential oil constituents of wormwood. Experimental parameters including temperature and desorption time, temperature and extraction time, sample weight, and water content effect were tested and optimized. A temperature of 260 °C was found to be appropriate for efficient desorption. The best desorption time was obtained 2 min for all measurements. The optimized quantities were found for extraction temperature 75 °C, extraction time 25 min, sample weight 2.5 g. The added water deactivated the fiber surface by blocking the active sites; therefore, the proposed fiber is suitable for dry samples. The proposed method is simple and costly compared to conventional methods of analysis. In addition, in this method, the analysis time is shorter and could be used for the analysis of volatile compounds in medicinal plants.

To optimize conditions for micropropagating Galanthus transcaucasicus Fomin, the effect of explant type, different concentrations of sucrose, type and different concentrations of auxin were examined on bulblet production. For the induction of bulblets, three types of bulb scales were usesd as explants. A two-step sterilization procedure was applied. Assessments were made after incubation for 20 weeks at 23±1ºC with 16h photoperiods. Highest number of bulblets were proliferated culturing bulb scales on modified MS medium supplemented with 2.0 mg.l-1 BA and 2.0 mg.l-1 IBA. About 27% of bulblets were bigger than 5 mm in diameter, suitable for acclimatization. With the increase of sucrose concentration, number of bulblets decreased, but their size increased. This protocol provided a basis for future study on large-scale multiplication system for commercial nurseries of Galanthus transcaucasicus.