Asia Life Sciences

Abstract : The study aimed to identify the effect of seeder machine on wheat specification under SDBGR and SDBRO at different depth and ranges of planting distances . Two types of wheat planting methods (SMBGR and SMBRO) were tested under two depth (4 and7cm) and three levels of planting distances (8, 10, and 12 cm). The experiments were conducted in a factorial experiment under a randomized complete block design with three replications. The results showed that the SMBGR was significantly better than SMBRO in all studied conditions. The study included germination percentage, germination speed, plan vigor index, weight of 1000 grains, number of grains in spike, grain yield and biological. The planting depth  (4cm) was significantly superior to the other  level  (7 cm) in all studied properties, while the planting distance at a range of 8 cm was significantly superior to other two levels (10 and 12 cm) in all studied conditions

Abstract : avandula stoechas, known as "Halhal" vascular is a medicinal plant of the lamiaceae family, widely used in traditional medicine worldwide as an antispasmodic in colic pain, expectorant, stimulant for various diseases of the central nervous system. In the context of the valorization of this plant, two extracts with two preparation methods (maceration and soxhlet) were prepared from the different parts of this plant: one ethanolic and the other dichloromethane. The quantitative estimation of total polyphenols, flavonoids and tannins by the colorimetric method showed that the extracts are rich in these compounds. The evaluation of antioxidant capacity carried out by the DPPH free radical trapping method indicated that the ethanolic extract has significant antioxidant activity in the stem part, with the effective concentration to inhibit the 50% DPPH (EC50) is 0.096 mg/ml, higher than that recorded by ascorbic acid (EC50 = 1.04 μg/ml). The analysis of the ethanolic extract of Lavandula stoechas by GC identified several common compounds between the four parts, with different percentages and retention times, most of which are antioxidants, bicyclic monoterpene derivatives, monounsaturated and polyunsaturated fatty acids, alkanes, sterols and triterpenoids. L-camphor (42.68%), palmitic acid (17.29%), linoleic acid (15.98%) and oleic acid (14.01%) were the main components. The determination of the Lethal dose 50 (LD50) of ethanol extracts showed that the fruit is the most toxic with a value of 3548.1 mg/kg which is significant compared to the other parts