IMPROVING GROWTH CHARACTERISTICS AND VASE LIFE OF DENDRANTHEMA GRANDIFLORUM ‘FLYER’ USING HUMIC AND FULVIC ACIDS AS BIOSTIMULANTS SUBSTANCES

A greenhouse experiment was conducted during two consecutive seasons of 2018/2019 and 2019/2020 at the Nursery of Ornamental plants, Faculty of Agriculture, Mansoura University, Egypt, to compare the ability of humic and fulvic acids solely at different concentrations (500,1000,1500 mg/l), besides the control on improving some vegetative, flowering parameters and chemical constituents of mums (Dendranthema grandiflorum ‘Flyer’). The obtained results cleared that fulvic acid at concentrations of 1500 and 1000 mg/l or humic acid at 1500 mg/l were the most effective treatments for improving the vegetative parameters (plant height, branches number, plant spread, roots/shoots ratio, fresh and dry weights of plant, and leaf area), flowering parameters (days required period for appearing the first inflorescence and 50% of inflorescences, duration of flowering stage and the vase life, inflorescences number/plant, inflorescence diameter). Furthermore, drenching fulvic acid at 1500 and 1000 mg/l or humic acid at 1500 mg/l, promoted the photosynthesis pigments (total chlorophylls and carotenoids), in addition to the percentages of total carbohydrates, nitrogen, phosphorous and potassium in the leaves. Finally, it could be recommended to use fulvic acid at 1000 mg/l or humic acid at 1500 mg/l twice monthly (six times during the flowers production process) as a soil drench before the irrigation process for obtaining the ideal growth characteristics of this important pot and cut flower plan

The Language of Visual Communication between the Variable Culture and Beliefs in Light of Art Formation

Physical language takes on a universal dimension, where people can communicate through it as an understandable language related to the different environments and elements associated with man, animal, and plant, for forms that have meaning for the public and individuals because they have different thoughts and cultures. The art is a rich material for the transmission of ideas and beliefs, a material for recording history and everyday life, within its formal and spontaneous framework, and a material for the documenting of human relations. It contributed to the direction of public thought in a cultural or ideological framework. It was possible to exploit the color and the sculptural modeling as a strong means that varies between the even and sculptural within the framework of official sculpture in a changing relationship throughout history to take a modern form that is related to modernity and the wide impact under technological development. This research aims to review the aspects of communication, and the influence of art through ancient civilizations to contemporary time

Study The Applications of Water Deficiency Levels and Ascorbic Acid Foliar on Growth Parameters and Yield of Summer Squash Plant (Cucurbita pepo L.)

Two field experiments study during 2015 and 2016 summer seasons on sandy loam soil under drip irrigation system by Nile river water, at the Agricultural Research and Production Station National Research Centre, El- Nubaria region, EL- Beheira Governorate,  Egypt. This study focused on the applications of different water deficiency levels (100, 80 and 60% of F.C. i.e. field capacity) and ascorbic acid (AsA) spraying foliar application with different concentrations (0, 50 and 100 ppm) as antioxidant on growth parameters and yield as well as photosynthetic pigments content of summer squash plants (Cucurbitapepo L.cv. Eskandrani). Results indicated that, decreasing water levels caused a significant reduction in the all tested growth and yield parameters, i.e., canopy weight, root weight, number of leaves, leaves fresh weight and leaf area as well as photosynthetic pigments content (total chl., and carotenoids), total yield, fruit weight and length. While increasing ascorbic acid spraying foliar application levels as antioxidant significantly increased the aforementioned parameters in the two seasons as compared with control. On the other hand, decreasing water levels caused a significant increasing in leaf proline content, leaf cell sap osmotic pressure, dry matter % and fruit TSS in the two growing seasons as compared with control.Keywords: water stress, water deficiency, ascorbic acid, antioxidant, growth, yield, summer squash plant and Cucurbita pepo.

Scheduling Irrigation Using Automatic Tensiometers for Pea Crop

Recent technological advances have made soil water sensors available for efficient and automatic operation of irrigation systems. Automatic soil water sensor-based irrigation seeks to maintain a desired soil water range in the root zone that is optimal for plant growth. Automatic tensiometers were buried at 30 cm depth under the sandy soil surface of Nubaria experimental station of NRC, subjected to drip irrigation system to automatically schedule irrigation for pea crop.  Soil moisture potentials 70, 75 and 85 kPa, represented 3 irrigation treatments and 3 Potassium treatments 50, 75 and 100% of 100 kg fed.-1, the officially recommended amount of Potassium fertilization for a pea crop by the ministry of agriculture in Egypt for sandy soils, were scheduled and added with the drip irrigation portions. The obtained results revealed that using soil moisture potentials 70, 75 and 85 kPa were equivalent to 85, 75 and 60% of the field capacity of the soil, respectively. The average crop factor (Kc) was calculated for each growth stage and the water applied according to the depletion percentage for each water treatment. All the applications were adjusted on control panel which was connected to an electric valve for each treatment. Water use efficiency, productivity, growth parameters, K use efficiency were calculated for each treatment. Automatic scheduling of drip irrigation at 85% F.C. using irrometer tensioner and 75% K fertilizers led to saving 16% to 35% of supplied irrigation water compared to uncontrolled drip irrigation method, with an increase in the yield of the crop estimated by 20%.Keywords: automatic irrigation, scheduling irrigation, automatic tensiometer, potassium fertigation, drip irrigation

Chemical Profile of Cyperus laevigatus and Its Protective Effects against Thioacetamide-Induced Hepatorenal Toxicity in Rats

Cyperus species represent a group of cosmopolitan plants used in folk medicine to treat several diseases. In the current study, the phytochemical profile of Cyperus laevigatus ethanolic extract (CLEE) was assessed using UPLC-QTOF–MS/MS. The protective effect of CLEE at 50 and 100 mg /kg body weight (b.w.) was evaluated on hepatorenal injuries induced by thioacetamide (100 mg/kg) via investigation of the extract’s effects on oxidative stress, inflammatory markers and histopathological changes in the liver and kidney. UPLC-QTOF–MS/MS analysis of CLEE resulted in the identification of 94 compounds, including organic and phenolic acids, flavones, aurones, and fatty acids. CLEE improved the antioxidant status in the liver and kidney, as manifested by enhancement of reduced glutathione (GSH) and coenzyme Q10 (CoQ10), in addition to the reduction in malondialdehyde (MDA), nitric oxide (NO), and 8-hydroxy-2′-deoxyguanosine (8OHdG). Moreover, CLEE positively affected oxidative stress parameters in plasma and thwarted the depletion of hepatorenal ATP content by thioacetamide (TAA). Furthermore, treatment of rats with CLEE alleviated the significant increase in plasma liver enzymes, kidney function parameters, and inflammatory markers. The protective effect of CLEE was confirmed by a histopathological study of the liver and kidney. Our results proposed that CLEE may reduce TAA-hepatorenal toxicity via its antioxidant and anti-inflammatory properties suppressing oxidative stress

Impact of Tremendous Consumption of Tea Drink on Blood Lead

Abstract: Heavy metals especially lead, are considered to be one of the important sources of pollution of foods and drinks. Tea is a very common drink and could be a source of some heavy metals particularly lead. Objectives:1-To determine lead traces in the samples of packed tea; collected from the local market of Egypt; one of EMR countries; the differential pulse anodic stripping voltammetry (DPASV) at a hanging mercury drop a) by using two techniques, To evaluate level of plasma lead in heavy and -on spectrometry (AAS). 2 ) the atomic absorpti b electrode and chronic consumers of tea drink. Materials: Reasonable amounts of different tea (black and green) packets, were collected from the local market to determine its lead content. Subjects: 103 randomly chosen Sohag residents; in different work places; who tremendously used to consume tea and other beverages; being guards, carpenters, constructors and iron workers in constructions. All were informed about the research aim and their verbal consents were approved; they subjected to: a) full history reporting for their habits of tea drinking, b) medical examination and c) determination of lead in their plasma by using Atomic Absorption Spectrophotometry. On staistical analysis, plotting the current signals against the lead ion concentration added to the sample gave straight line. From this linear relationship, each concentration, the standard deviation and correlation coefficient values were obtained. SPSS program, version 10 was used to elucidate the statistical correlations. Results: lead element level ranged from 0.027 to 0.603 µg g −1 ; in tea packets samples by using (DPASV) and from 0.028 to 0.607 µg g −1 by using (AAS), but was within the tolerated amount set by FAO/WHO. The concentrations in chronic consumers plasma were above maximum permissible figures; 18.4 % had about 40-150 µg/dl and they were symptomatizing

Efficacy of some insecticides on field populations of Culex pipiens (Linnaeus) from Egypt

The efficacy of the most used insecticides belonging to different groups (organophosphate, carbamate, synthetic pyrethroid and insect growth regulator) was tested against four different field populations of Culex pipiens. Results obtained showed that the laboratory colony showed higher susceptibility to the tested insecticides than the mosquito populations collected from Sharkia and Assiut Governorates. Field populations of Cx. pipiens from Sharkia were chosen to study the development of resistance (resistant strain) in Cx. pipiens to chlorpyrifos toxicity. After 15 generations of selection pressure using chlorpyrifos against the 3rd instar larvae of Cx. pipiens, resistance increased by 24.56-fold in the resistant strain as compared with the control. Fractionation of total soluble proteins using SDS–PAGE revealed some differences in the laboratory colony, field populations and resistant strain. Results may indicate that alkaline phosphatase and non-specific esterases were probably responsible for the detoxification of chlorpyrifos in field populations

Effect of Winter and Summer Temperatures on Some Physiological Parameters in an Egyptian Lizard (Novoeumeces schneiderii)

Abstract: The aim of the present study to investigate differences between winter and summer temperatures on some adaptive physiological properties, particularly, thermoregulation, metabolic enzymes and osmolallity. W e focused on thermoregulation of this animal particularly cloacal temperature, blood biochemical compounds of osmolallity. And the metabolic enzymes as, citrate synthase (CS), a key enzyme of the Krebs cycle; lactate dehydrogenase (LDH) a key enzyme of as part of the anaerobic glycolytic pathway and also measured cytochrome C oxidase (CCO), part of the aerobic electron transport chain , these enzymes were measured in muscle and blood at winter and summer temperatures in a reptile (the Egyptian lizard, Novoeumeces schneiderii). The results indicated that it is of outmost physiological interest to note that although ambient temperatures in winter group was 8.0 °C, cloacal temperature-which represents body core temperature-did not decrease remarkably beyond about 14.6°C which seems to be the lower limit and 16.4°C the high limit with mean 15.5±0.9°C; of body temperature range of change in winter group of this lizard. On the other hand, under high ambient temperature, however, ranging from 30°C to 35 °C, it was clear that the body temperature of this lizard is quite closely, to the ambient temperature and the lower limit body temperature is 31.5°C with the high limit is 33.5°C and mean 32.5±1°C .The results indicated that there were significant differences in daily body temperatures between winter and summer body temperatures and fluctuated significantly more in winter compared with summer. This lizard compensated for lower winter temperatures by increasing enzyme activities in muscle, and the activities of cytochrome C oxidase and lactate dehydrogenase and citrate synthase were significantly greater in winter compared with summer at all assay temperatures in the muscle. On the other hand, blood metabolic enzymes activities (cytochrome C oxidase and lactate dehydrogenase and citrate synthase) were significantly decreased in winter compared with summer. Also the results indicate that highly significant decreased of blood osmolallity in summer temperatures compared with increased blood osmolallity in winter temperature