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ALLEVIATION OF SALINITY STRESS THROUGH MAGNETIC WATER AND NANO ZINC AND MAGNESIUM TREATMENT OF LEMONGRASS PLANT (Cymbopogen citratus L.)
2020
Ahmed Abdel Hamid
The effect of magnetic water compared with saline water , nano-Mg at 100 and 200 ppm and nano-Zn at 50 and 100 ppm treatments and their combinations on lemongrass plants (Cymbopogen citratus L.) was studied during 2018/2019 and 2019/2020.Vegetative growth parameters including plant height, number of tillers/ plant, leaf area, herb fresh and dry weights were greatly affected by both studied factors. Magnetic water treatments recorded the highest values of all vegetative growth parameters compared with saline water. However, all nanoparticles of Mg and Zn treatments were superior than control in promoting vegetative growth parameters and the treatments of 100 ppm nano-Zn and 200 ppm nano-Mg recorded the maximum values of vegetative growth parameters. The combined treatments showed that the highest values of vegetative growth measurements were obtained in plants irrigated with magnetic water and sprayed with 100 ppm nano-Zn, in both cuts In 1st and 2ndseasons.N, P, K and Mg contents were significantly higher in lemongrass plants irrigated with magnetic water than those irrigated with saline water. Moreover, the treatments of 100 ppm nano-Zn exhibited the highest significant values of N, P, K, whereas 100 and 200 ppm of nano-Mg treatments were superior in recording the highest values of Mg content, in the two seasons. The combination treatments of lemongrass plants irrigated with magnetic water and sprayed with 100 ppm nano-Zn or 200 ppm nano-Mg produced the richest values of N, P and K% D.W., whereas, the treatments of magnetic water combined with 100 or 200 ppm of nano-Mg produced the best Mg content.A great effect of magnetic water irrigation on increasing Fe and Zn contents than saline water treatments. The treatments of 50 and 100 ppm of nano-Zn were more effective than control and other treatments in maximizing Fe and Zn levels. The combined treatments of lemongrass plants irrigated with magnetic water and sprayed with 100 ppm of nano-Zn exhibited the highest values of Fe and Zn% D.W. in most cases. Additionally, total chlorophyll greatly increased in lemongrass plants irrigated with magnetic water than those irrigated with saline water, whereas the treatment of 200 ppm nano-Mg increased it than others. Interaction effect showed that, plants irrigated with magnetic water and sprayed with nano-Mg at 200 ppm exhibited the highest values of total chlorophyll.Proline and glycine betaine contents were greatly decreased with magnetic water treatment compared with saline water. Meanwhile, all applied treatments were effective in decreasing the levels of both constituents than control, which considered a good indicator to alleviation of water salinity stress on lemongrass plants through magnetic water and nanoparticles of Mg and Zn applications. Finally, volatile oil %, was greatly increased in lemongrass plants irrigated with magnetic water, especially the treatment of nano-Zn at 100 ppm as compared of others in this respect in both cuts and the two studied seasons. The interaction between the two studied factors was significant which means that both factors act together in improving volatile oil content in lemongrass herb
Afficher plus [+] Moins [-]EFFECTS OF WATER SALINITY AND EGYPTIAN CLOVER AMENDED SUBSTRATES ON TOMATO TRANSPLANT PRODUCTION
2018
A. Abu-Elela | K. Farrag | U. El-Behairy | M. Abdallah
This study was conducted to evaluate the growth of tomato transplants irrigated with saline water in a commercial soilless potting media amended with fermented clover produced by anaerobic fermentation of a mixture of clover and water for different periods (1, 2 and 3 weeks). Treatments were distributed in completely randomized factorial design included three salinity levels in irrigation water (260, 1000 and 2000 mg l-1) without and with fermented clover corresponding to 0, 10, 20 and 30% of the substrate (1peat: 1perlite: 1vermiculite) by volume. Plant height (cm), number of leaves, vegetative fresh and dry weights (g) per plant were recorded 35 days after sowing. The obtained results showed that the mean values of the aforementioned parameters were increased due to the incorporation of clover-based amendment with higher pronounced effect recorded for fermented clover as compared to non-fermented clover. The highest values were obtained due to the incorporation of three weeks fermented clover at 20% mixing percentage followed by 30%. There were significant differences among water salinity treatments; fresh water (260 mg l-1) recorded the highest vegetative growth of tomato transplants. Furthermore, fermented clover alleviated the salt stress on transplants and increased the growth parameters under saline water irrigation. These results suggested that clover can be used for producing organic tomato transplants, instead of imported media, supporting by fermentation to enhance the ability of clover to supplement the transplants with the nutrient needs and cope the salinity condition.
Afficher plus [+] Moins [-]EFFECT OF SOAKING AND SPROUTING USING SALINE WATER ON CHEMICAL COMPOSITION OF WHEAT GRAINS
2019
T. Hussein | Y. Abd El-Shafea | U. El-Behairy | M. Abdallah
In the current research, wheat grains were used to study the effect of grain soaking and sprouting using tap water and saline water (NaCl solution) on sprout growth, proximate analysis, minerals content, anti-nutritional and antioxidant compounds of sterilized grains (soaked for 0.33h) and soaked grains for imbibition (12h) and sprouted grain for 24h old. Results revealed that the longest radical of 24h old wheat sprout was observed at 2000 ppm NaCl, and shortest was observed at 4000 ppm NaCl. Soaked wheat grains (12h) for imbibition recorded the highest moisture content (10.2 to 10.9%) while soaked for 20 min (0.33h) in calcium hypochlorite for sterilization recorded medium content (8.8 to 9.9%) and the lowest one recorded in 24h old wheat sprouts (6.9 to 7.2%). The low moisture content the high total carbohydrate, total fats and energy and vice versa. Soaked grains for sterilization period (0.33 h) and imbibition (12h) increased zinc (Zn), manganese (Mn) and calcium (Ca) while non-sterilized only potassium (K). Tap water increased sprout magnesium (Mg), and manganese (Mn) content while saline water increased sprout magnesium (Mg), and calcium (Ca) content. Grain sprouting was effective in reducing phytic acid, oxalate and alkaloids anti-nutrient in wheat sprouts especially when using sterilized grains. Soaking non sterilized grains for imbibition (12h) in saline water contained higher total phenol, flavonoids and total antioxidant. Etiolated wheat sprouts contained lower total flavonoids and antioxidant compared with soaked grains in saline water.
Afficher plus [+] Moins [-]EFFECT OF SPROUTING USING SALINE WATER ON STORAGE WHEAT GRAIN SPROUTS CHARACTER, PROXIMATE ANALYSIS AND PHYTOCHEMICAL COMPOUNDS FRACTION
2018
asma Soliman | Nashwa Abu-El Azm | M. Elgammal | M. AbdaIIah
One day old wheat grain sprouts were used to study the effect of using saline water for sprouting on sprout characters, and changes of some chemical compounds after 2 years wheat grain storage of Gemmeiza 11 cultivar. Sprout characters showed no significant different in storage grain sprouts weight at all NaCl concentration while increased in fresh grains sprouts with increasing NaCl concentration. Sprouts chemical components as affected by storage revealed that storage Gemmiza II had the highest crude protein and the lowest carbohydrate content compared with dry fresh seeds. Non storage grains also had higher protein and lowest carbohydrate and energy content compare with dry fresh grains. The results of phytochemical analysis showed that wheat fresh grain sprouts increase phytochemical compounds and recorded the higher values when using saline water (37 compounds) followed by using tap water (33 compounds) compared with dry fresh grains (30 compounds). Saline water also enhanced the number of phytochemical compounds in two year storage grain sprouts (31 compounds vs. 28 compounds for tap water). Moreover, storage grains decreased the number of identified compounds during sprouting. It can be recommended that wheat grain sprouting is a procedure that has been developed to significantly increase the bioavailability of phytonutrients and phytochemical to ensure the nutritional security of population for Egypt.
Afficher plus [+] Moins [-]Improvement of canola seed yield and quality using sulphur and irrigation intervals under different irrigation water salinity levels
2010
Al-Solimani, S.G. | El-Nakhlawy, F.S. | Al-Morshdy, M.H.
This investigation was conducted at Hada Elsham Experimental Research Station, King AbdulAziz University during 2007/2008 and 2008/2009 seasons, to study the effects of two irrigation water salinity levels (1200 mg/L and 10000 mg/L), three irrigation water intervals (3, 6 and 9 days) and three sulphur fertilizer rates (0.0, 4.0 and 6.0 t/ha) on seed yield; yield components and seed quality of canola, Pactole cv. The obtained results showed that seed yield kg/ha was significantly increased (Received June 1, 2009) (Accepted June 27, 2009) under the 1200mg/L irrigation water and 6t/ha of sulphur more than the seed yield/ha under the effect of 1200 mg/L irrigation water with 4 t/ha sulphur or 10,000 mg/L irrigation water with 6t/ha sulphur with no significant differences between the two later treatments. Irrigation every 3 days significantly dominated over the irrigation every 6 or 9 days on seed yield and yield components. Irrigation with 10.000 mg/L salinity water significantly decreased No. of branches /plant, No. of fruit/plant and seed weight/ plant. Besides, Protein content of the seed as well as oil content increased as water salinity increased in both seasons. As sulphur fertilizer rate increased seed yield, yield components protein and oil contents of seed significantly increased, in the two studied seasons.
Afficher plus [+] Moins [-]EFFECT OF SALINE WATER ON GROWTH, CHEMICAL COMPOSITION AND MICROBIOLOGICAL SAFETY EVALUATION OF RADISH ETIOLATED SPROUTS
2019
Amira Bondok | H. Abd El-Gawad | M. Abd El- Ghany | Mز Abdallah
Egyptian radish sterilized seeds were sprouted for 3 days using tap and saline water NaCl 2000 ppm to study sprout characters, chemical composition, protein fraction and safety aspects such as microbiological examinations and biogenic amines were investigated at 3 days old. The results indicated that sterilized seeds increased sprout growth compared with non-sterilized. Seeds sprouting increased in protein content, moister, ash and fibers while carbohydrate, lipid content and energy decrease in etiolated sprouts. Using saline water and seeds sterilization for sprouting increased albumin, globulin and glutenin fractionation but decreased prolamin compared with sprouts produced with tap water and without seed sterilization. Using sterilization by 2% calcium hypochlorite of seeds before sprouting led to decreasing in total bacterial count compared with non-sterile seeds sprouts, the same was in total coliform, total yeast and total fungi counts. The sprouts product which washed with saline water was contain total bacterial count less than which washed by tap water. All sprouts under investigation were free from feacal coliform and all examined pathogenic microorganism under investigation like Staph. aureus, B. cereus and Salmonella spp. Use sterilized seeds for sprouting caused big decrement on biogenic amines content of radish sprout. Radish sprout contain biogenic amines but it is lower than previous ranges, sprouts can be considered a safe food and germination of seeds either use tap or saline water.
Afficher plus [+] Moins [-]EFFECT OF SOME NUTRIENTS ON GROWTH, YIELD AND FIBER QUALITY OF EGYPTIAN COTTON UNDER SALINE CONDITION
2018
Amira Drwish | R. Abd Rabou | A. Zaky | S. Hamoda
Two pot experiments were carried out at the greenhouse of the Cotton Research Institute, Agric. Res. Cent., Giza, Egypt during 2015 and 2016 seasons to study the response of cotton plant to application of some nutrients to improve the performance of cotton plant under irrigation of saline water to increase growth, yield and yield components and fiber quality of Giza 90 cotton cultivar. The experimental design was a split plot design with four replications. Main plots included saline water solutions treatments (control, 2000, 4000, 6000 and 8000 ppm), sub plot included four nutrients application (Potassium Humate, Algex, Poly Ethylene Glycol (PEG) 6000 and Potassein compared with control). The obtained results could be summarized as follows: Irrigation with saline water over seasons significantly decreased plant height, number of fruiting branches/plant, number of open bolls /plant, boll weight, seed index, seed cotton yield per plant, fiber length, uniformity index, fiber strength and micronaire value, while, lint % was significantly increased. Nutrients application had significant effect on growth parameters, yield and its components and fiber properties under study, All nutrients treatments gave the highest values of growth parameters, yield and its components and fiber properties as compared with the control in both seasons. In general, plants sprayed with PEG gave the highest averages of plant height, number of fruiting branches/plant. Potassium Humate gave the highest averages of yield and its components and fiber properties followed by plants sprayed with Algex, while the plants sprayed with PEG as came the last in these respect in both seasons. Interaction between irrigation with slain water and nutrients application by salinity tolerance inducers had a significant effect on plant height, number of fruiting branches per plant, boll weight, number of open bolls /plant, seed index, seed cotton yield /plant and fiber quality under study in both seasons. Plants treated with foliar nutrients under salinity condation scored the highest average of growth parameters, yield and its components and fiber properties. Potassium Humate, Algex, PEG and Potassein applications to plants under normal and salinity conditions had positive effects on improving the performance of cotton plants, which increased plant growth and yield especially under salinity conditions.
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