Governorate to evaluate the productivity and quality of some Russian parsley varieties by using organic farming practices. Compost manure was added to the soil at three rates of 10, 15 and 20 m 3 /feddan. Seeds of different flat-leaf parsley varieties were sown (local, Leaf Breeze, Legendary Hero and Leaf Sandwich). The results showed that the increase in organic fertilization rates led to an increase in herb yield and its quality characters (chlorophyll pigment content in the leaves and essential oil yield). Despite the superiority of local variety in herb productivity, its quality parameters were low, while vegetative yield of foreign varieties was marked by high quality specifications (high chlorophyll content and essential oil yield). There were differences in constituents of essential oil between varieties. The response of plants to organic fertilization treatments was varied according to variety type. The best of the Russian varieties was Legendary Hero variety fertilized with 15 m 3 compost/feddan.
his work was carried out during the two successive seasons of 2012/2013 and 2013/2014 to study the effect of different planting locations on three-lobed sage (Salvia fruticosa Mill.) plants. The experiment was conducted at three different locations in newly reclaimed lands as follows: El-Qantara Sharq (North Sinai Governorate), El-Maghara Village (North Sinai Governorate) and Siwa Oasis (Matrouh Governorate). The results indicated that all herb quantity and quality parameters were varied according to location and harvesting time. The best location for cultivation of this plant was El-Maghara location, which recorded the highest herb quantity parameters (number of cuts per season, fresh and dry weights of herb per plant or per feddan) as well as the highest herb quality parameters (essential oil yield per plant or per feddan with a suitable content of 1,8 cineole compound as the main chemical constituent of the oil), followed by El-Qantara Sharq location and then Siwa Oasis location.
Increasing temperature is a global issue due to the existing climate change problem that reduces agricultural productivity and increases prices. It badly affects the yield, and active constituents of medicinal and aromatic plants, especially in newly reclaimed lands in desert areas. The Hibiscus sabdariffa L. is a remarkable crop known for its calyces to make a refreshing drink. It is in other food industries and has many healing effects. A split-plot field experiment was conducted on Hibiscus sabdariffa L. at Siwa Oasis, Egypt, during the 2018 and 2019 seasons for studying to reduce the harmful effect of heat stress on plants and yield improvement. Spraying with three salicylic acid concentrations was put to main plots as 0, 500, and 1000 mg/l and the number of sprays with Spirulina platensis algae extract was allotted to sub-plots and used as 0, 1 and 2 times in the season. Some quantity and quality parameters were under investigation. The significant highest increases in dry weight per plant, number of fruits per plant, dry yield of sepals per hectare and sepal's anthocyanin content were from the combination among spraying with salicylic acid at the concentration of 500 mg/l and spraying with blue green algae extract twice through the season. This treatment was helpful to decrease the high-temperature injury on growth through the summer months.
Two consecutive seasons (2020 and 2021) were held for cultivating Datura innoxia Mill as a medicinal plant for increasing the production of seeds and active ingredients as a native goal for our economy by using several aspects of chitosan (bulky and nanoparticles) as a biocompatible and biodegradable substance because of its crustacean origin and amino acids (individually and loaded onto chitosan nanoparticles). Data showed that formulated chitosan nanoparticles 100 mg/L loaded with methionine 40 mg/L gave an excellent record of fruit number per plant and seed weight per plant, and the highest protein content combined with the lowest range of the toxic compound malondialdehyde. Additionally, applying chitosan nanoparticles 50 mg/L coated with methionine 40 mg/L to D. innoxia plants resulted in the highest accumulation of atropine alkaloid and several polypeptides in the protein electrophoresis (SDS PAGE) when compared with control. Furthermore, in the roots of D. innoxia, where tropane alkaloids are synthesized, this application induced the expression of the tropinone reductase 1 (DiTR1) gene, a key gene in the synthesis of tropane alkaloids. So, the target of using nanotechnology applications (chitosan nanoparticles functionalized with methionine) in agriculture, especially medicinal plants, to increase yield and secondary metabolites has proven helpful, according to our findings. Future biological studies for these treatments are recommended, in order to test their safety on plants and humans.
limate change could negatively impact black cumin (Nigella sativa) cultivation, changing the crop's characteristics. Thus, the farming of new expanses was necessary. As a result, this research was carried out in Egypt to determine the effect of newly reclaimed regions on production. The study was conducted in four desert locations: El-Hammam, Matrouh Governorate;Oraby Association, Al-Eubour, Qalyubia Governorate; Tour Sinai, South Sinai Governorate; and the western desert hinterland, Minya Governorate. The results revealed that all ecosystems significantly affected growth and yield traits. The highest plant height, fresh and dry weights per plant, capsule numbers per plant, seed yield, and fixed oil per unit area were from the governorates of Minya, followed by South Sinai, Qalyubia, and Matrouh, respectively. The highest content of unsaturated fatty acids and the lowest concentration of saturated fatty acids were from the governorates of Matrouh, followed by Minya, Qalyubia, and South Sinai, in that order. Based on the quantity and quality characteristics, the study recommended cultivating black cumin in newly reclaimed lands in the western desert hinterland of Minya Governorate, then South Sinai Governorate, as new areas for this crop's production.
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