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A medicinal plant from the Beni‐Snassen Forest in the eastern region of Morocco has been studied. This scientific research was carried out to measure the content of essential phytochemical constituents and their antioxidant capacities from the hydromethanolic extract of leaves of Pistacia lentiscus L. located on sites at varying levels of altitudes. Our results have shown that at the lowest altitude, there was a height significant (p ≤ 0.05) in the content of flavonoids and polyphenols. On the other hand, the ascorbic acid, chlorophylls, and tannins had a higher content concentration on sites with high altitudes. Analysis correlation shows a hight correlation between the DPPH and the polyphenols content. A correlation between the total antioxidant activity and flavonoid content was found to have many similarities. The results indicated that P. lentiscus L. leaves have significant sources of chemical compounds that might be employed for various purposes. [ABSTRACT FROM AUTHOR]

Quinoa (Chenopodium quinoa Willd.) is a facultative halophyte renowned for its importance in enhancing food security, and it supports forage production across diverse climatic regions. The objective of this study is to examine the impacts of multiple pre-treatment methods on C. quinoa seed (Titicaca cultivar) germination parameters, identify the optimum pre-treatment to diminish the consequence of salinity, and promote the productivity of this crop, especially in marginal environments. For this purpose, a spectrum of sodium chloride (NaCl) concentrations spanning from 0 to 500 mM and gibberellic acid (GA3) concentrations ranging from 0 to 300 ppm were tested, and mechanical scarification (MS) was carried out. The effect of a combination of these pretreatment NaCl/GA3 and NaCl/MS on the germination parameters of C. quinoa seed was also investigated. The results showed that the total germination, vigor index, and germination index decreased progressively with an increase in salinity. Hence, salinity exhibited a notable influence on most germination parameters. Moreover, seeds scarified with 500 mM of NaCl negatively affected all measured parameters. In contrast, gibberellic acid applied at 200 ppm was effective on most of the parameters measured, particularly under 100 mM of NaCl. These findings indicate that immersing seeds in gibberellic acid could mitigate the adverse impacts of salinity. [ABSTRACT FROM AUTHOR]

Seed germination of Capparis spinosa L. is highly important for ecology, medicine, and economics. The present study aimed to determine the effects of six pretreatments and two temperature regimes, T1: 9/35.7°C (Laboratory) and T2: 1/43°C (Greenhouse), on Capparis spinosa L. seeds' germination rate and latency time. Different pretreatments were tested, including scarification (P1) and seed imbibition in water (P2 and P3) and gibberellic acid (GA3) (P4, P5 and P6). The results showed that the highest germination rate (68.33%) was observed in the laboratory for the control seeds (T1, P0), followed by (58,33%) for seeds soaked in water for 48 hours (T1 P3),(56,67%) for seeds soaked in 200 ppm of GA3 (T1, P4),(53,33%)for seeds soaked in 400 ppm and 600 ppm of GA3 (T1, P5andT1, P6), (48,33%)for seeds soaked in water for 24 hours (T1 P2), and (51,43%) for the control seeds in greenhouse (T2, P0), whereas the lowest germination rate (12.86%) was recorded in the greenhouse temperature, which was detrimental to seed germination, for seeds soaked in 600 ppm of GA3 (T2, P6). Germination latency times were shorter after soaking the seeds in water for 24 hours. Finally, seed germination of C. spinosa is subjected to several factors that may influence the total percentage of germination and latency time. [ABSTRACT FROM AUTHOR]