Egyptian International Journal of Palms最新文献

{"title":"A new strategy for controlling three devastating pests attacking date palm plantations in El Bahariya and Siwa Oases, Egypt,","authors":"M. Issa, Salwa Abd Elhamed, Hala Alam","doi":"10.21608/esjp.2021.233537","DOIUrl":"https://doi.org/10.21608/esjp.2021.233537","url":null,"abstract":"Egypt is considered the world leader in date production; yet, Batrachedra amydraula , Arenipses sabella and Virachola livia are threatening this distinguished position. The current study aimed to set a new strategy depending on controlling of those pests using a group of parasitoids and predators. Once the pests appeared in El Bahariya and Siwa Oases’ palm plantations, Trichogramma sp., Bracon sp., Goniozus sp., Chrysoperla sp. Coccinella sp . and Orius sp. were released. Results related to infestation%, before and after release, pests’ emergence and intensification were compared in both Oases. By the end of the season, A. sabella and V. livia infestation percentage in El Bahariya control farm increased till 82.5 and 70.6%, respectively, while B. amydraula showed less infestation, i.e. 39%. Infestation declined significantly when natural enemies were released and by the end of the season it reached 2.5, 1.1 and 1.1%, for A. sabella, B. amydruala and V. livia , respectively. In Siwa, infestation in control recorded 40.2, 52.4 and 58.7 %, while in treatments, it dropped to 1.1, 2 and 2.2%, by the end of the season, for the three pests, respectively. A. sabella infestation was higher in El Bahariya than Siwa, on the contrary with B. amydraula , while V. livia was higher in Siwa than El Bahariya till Aug., and the opposite case occurred in Sep. Results proved that using this combination of natural enemiesa proved effective control method against the three pests under investigation and it is recommended to use this strategy to be integrated in IPM programs in palm plantations in Egypt.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131560434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Susceptibility of some date to infestation by Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae)","authors":"M. Fouad, A. Gharib, A. Mahmoud","doi":"10.21608/esjp.2021.233538","DOIUrl":"https://doi.org/10.21608/esjp.2021.233538","url":null,"abstract":"The susceptibility of some date cultivars namely: (Sewi, Bartamouda, Malakabi, Sakkouti and Gondeila) to infestation with Oryzae philus surinamensis (L.) was studied at 25˚C and 70±5% R.H. Some biological aspects of this pest and loss in date weight were recorded of each variety. Moreover, correlation between fruit weight as well as chemical components and the susceptibility index of the tested cultivars were investigated. Results indicated that the two cultivars Gondeila and Sewi were the least susceptible to infestation with the pest as shown by the longest developmental period, the lowest number of adult emergence and loss in date weight. Also,the least values of susceptibility index of these cultivars were observed. The Sakkouti and Bartamouda cultivars were more susceptible to infestation by O. suriamensis . Average fruit weight (as physical character) is positively correlated with the susceptibility index. While, the chemical components (such as Ash %, Moisture content % and Total sugars) were negatively correlated with the susceptibility index of the tested date cultivars.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114749500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct organogenesis from shoot tip of Egyptian New Valley date palm cultivars","authors":"Mona Bakr, Amal F. M. Zein El Din, I. Shams El Din, I. Ibrahim, R. Taha","doi":"10.21608/esjp.2021.233545","DOIUrl":"https://doi.org/10.21608/esjp.2021.233545","url":null,"abstract":"Shoot tip explants of superior date palm cultivars Sewi, Tamr El wady, Hegazi and one individual unknown female from El-Kharga city (called Faleg or Meghel) were grown in the New Valley region and cultured on three different starting culture media MS+10mg/l 2,4-D+3.0mg/l 2iP ( M1), MS+ 10mg/l NAA+ 3.0mg/l 2iP (M2) and MS+30 mg/l NAA+20mg/l 2iP(M3) for eight months (two months interval). All culture media were supplemented with 40g/l sucrose, 2.0 g/l PVP, and 3.0 g/l activated charcoal and solidified with gelrite at 2.0 g/l. After eight months, some morphological responses were noticed as direct shoot buds, direct embryogenesis and callus. Depending on these responses, different culture media with different combinations of auxin and cytokinin were used to differentiate and multiply these cultures. Results indicated that the highest direct shoot bud percentage was formed on M1 medium while the highest direct embryo percentage was formed on M2.Induced direct shoot buds that transferred to the half strength of 2,4D then transferred to auxin free medium showed the highest multiplied rate as clusters. Maximum shoot number was obtained when transferring these clusters to a modified medium supplemented with 3/4 MS salt + 2.0 mg/l BA+ 0.5 mg/l Kinetin+ 0.25 mg/l 2iP+ 1.0 mg/l IAA. Meanwhile, induced direct embryos transferred to a modified medium supplemented with 1/2 MS+ 0.25 mg/l ABA + 0.5 mg/l Kinetin+ 0.25 mg/l 2iP showed the highest secondary embryo number. All induced shoots were rooted successfully and transferred to the greenhouse.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121158199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grafting of Dissolved Pulp from Date Palm Byproducts for Use in Industrial Water Purification","authors":"M. Elsayed, A. El-Torky, Ezz Eldin Gadalla","doi":"10.21608/esjp.2021.233543","DOIUrl":"https://doi.org/10.21608/esjp.2021.233543","url":null,"abstract":"Date palm ( Phoenix dactylifera L.) is considered as important crop in the Arabian Gulf. Lot of date palm leaves and rachis were collected annually and considers as wastes. In this work cellulose was isolated from two by-product of date palm tree, rachis and leaflet by alkali and bleaching treatments. The isolated cellulose was modified by grafting with acrylamide. The chemical composition of all samples was determined at different stages of treatment. All samples were characterizing by Fourier transform infrared, X-ray diffraction, the energy dispersive X-ray (EDX) and Scanning electron microscopy. Grafted samples copolymer was used in removal of methyl orange from aqueous solution. The maximum adsorption occurs at pH 3.0. The results of equilibrium denote the good fit of the adsorption data by freundlich isotherm model, maximum adsorption capacity calculated from Langmuir is 48.12 mg/g, and the adsorption obey pseudo-second order kinetic model. Date palm fibers considering as a promising alternative substitute to synthetic fibers in polymer composite industry.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124194689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of date palm (Phoenix dactylifera L.) to foliar application of potassium silicate","authors":"E. Badawy, A. El-Salhy, Mona Samouni","doi":"10.21608/esjp.2021.233532","DOIUrl":"https://doi.org/10.21608/esjp.2021.233532","url":null,"abstract":"The Effect of potassium silicate sprays on yield and fruit quality of Saidy date palm was studied during 2013, 2014 and 2015 seasons. This study aimed to examine potassium silicate spraying effects (from 2.5, 5, 10 to 20 ml/L) on the date palm fruiting . Spraying was done at mid of May till the first of July with spraying four times, each one after fifteen days . Results declared that carrying out sprays of potassium silicate at 2.5 to 20 ml/1 water caused a remarkable promotion on bunch weight and yield as well as physical and chemical characteristics of the fruits compared to untreated ones (control). The promotion was associated with increasing concentrations of potassium silicate. It could be concluded that spraying bunches of Saidy date palms with 10 ml/L potassium silicate four times was suggested to improve all physical and Chemical properties of fruits. Such fruit improvement is very important target than total yield since improvement in physical fruit traits induces an increase in packable yield.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"401 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126040201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technological and economical studies on production of date powder and paste from some low quality Egyptian dates","authors":"Rabie S. M., Eman M. Salem, M. Assous, M. Afifi, Asrar Y. I. Mohamed","doi":"10.21608/esjp.2021.233544","DOIUrl":"https://doi.org/10.21608/esjp.2021.233544","url":null,"abstract":"The aim of this work was to utilize the low quality date palm (prishible soft date and seedling of dry dates) to produce date paste and date powder, respectively. Amhat; a cultivar soft variety was used at rutab stage for producing date paste, while the dry dates were used for producing date powder by applying simple technology. These two products can be easily handled, transported, and utilized. They are shelf stable so that can be available all the year round for making many food products. The date paste production percentage from Amhat cultivar was 40-42%. Chemical composition of date paste was: 24.48% moisture, 61.97% total sugars, 2.04% protein, 1.97% fibers and 1.05% ash. The estimated date powder production percentage from the dry date seedling cultivar was 50-55%. The chemical analysis showed that date powder contains: 8.9% moisture, 80.67% total sugars, 2.20% protein, 2.59% fibers and 1.46 ash. The economical evaluation of the study indicated the feasibility of investment in production of date paste, date powder and date pits powder because it had internal rate of return of 28.5 %, which exceeds the posted bank interest value. In addition, the percentage of return to costs was 4.44% and the percentage of return to investment was 19.1%. The overhead invested in the study can be regained within two years and two months. variety had 14.01% moisture content. The date powder showed 8.9% moisture, 80.67% total sugars, 2.20% protein, 2.59% fibers and 1.46% ash (on the fresh weight bases). These results were in agreement with those reported by Salem and Hegazi (1971) for dry dates and by El-Sharnouby et al. , 2007, for date powder, and by Ahmed et al. , (2012) and Abd El-Migeed, et al. , (2013) for soft dates and by Mrabet et al. , (2008) for date paste.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127949531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of using nano-micronutrients via Spraying versus chelated forms on fruiting of ferehy date palms","authors":"Hamdi A. Mohamed, F. Ahmed, A. Mousa","doi":"10.21608/esjp.2021.233530","DOIUrl":"https://doi.org/10.21608/esjp.2021.233530","url":null,"abstract":"This study was conducted during 2016 & 2017 seasons to elucidate the impact of using nano-micronutrients (Zn, Fe, Mn and Cu) at 0.0125 to 0.1 % versus normal micronutrients in the form of chelates at 0.025 to 0.2 % on growth, palm nutritional status, yield and fruit quality of Ferehy date palms grown under Siwa conditions. Treating the palms with these micronutrients via nano or chelated form at the previous concentrations had an announced promotion on all aspects of growth, palm nutritional status, yield and fruit quality relative to the control treatment. Using nano-micronutrients at the lower concentrations namely 0.0125 and 0.025 % substantially were favorable than using the higher concentrations of chelated forms namely 0.1 and 0.2 % on stimulating all parameters. Using nano-micronutrients at concentrations higher than 0.0125 failed to show measurable effects. The best results with regard to yield and fruit quality of Ferehy date palms grown under Siwa region conditions were obtained due to spraying the palms three times with Zn, Fe, Mn and Cu via nano system at 0.0125 %.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128406470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of arbuscular mycorrhizal fungi (AMF) and/or Baker's yeast on root rot/ wilt disease and growth parameters of date palm offshoots in New Valley Governorate, Egypt","authors":"M. Abdel-Monaim, M. EL-Morsi, H. Mahdy","doi":"10.21608/esjp.2021.233541","DOIUrl":"https://doi.org/10.21608/esjp.2021.233541","url":null,"abstract":"Root rot and wilt complex were the important diseases in offshoots and new orchards of date palm growing in different Oases in New Valley Governorate. The ability of arbuscular mycorrhizal fungi (AMF) and/or Baker's yeast (BY) individually and in combination used as soil drench to induce resistance against root rot / wilt disease complex and their effect on growth parameters, mineral and pigment contents in leaves was examined. The obtained data show that AMF and BY individually and/or in combination were able to protect offshoots against root rot /wilt disease complex compared with check treatment (control)in pots under artificial infection with Fusarium oxysporum , F. solani and F. moniliform and naturally infection under nursery conditions in both locations (El-Kharga and El-Dakhla Oasis). The combination between AMF and BY was better than used individually of them for controlling root rot /wilt disease severity. On the other hand, all treatments increased growth parameters viz. number of roots offshoot-1offshoot height (cm), number of leaves offshoot-1, leaflet number leaf-1, nick leaf thickness (cm) and leaf area (cm 2 in both The combination between AMF and BY significantly all growth parameters compared with used individually. all treatments increase leaf contents of nitrogen (N), phosphorus (P), potassium (K), sodium magnesium (Mg), calcium (Ca) and Chlorophyll a, b and carotenoid compared with control in both El-Dakhla). In biochemical studies, activity of defense-related enzymes, including peroxidase (PO), polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL) and catalase as well as total phenolic and flavonoids compounds were increased in offshoots treated with AMF and/or BY individually or in combination in both locations (El-Kharga and El-Dakhla). The combination between AMF and BY recorded the highest all oxidative enzymes, total phenolic and flavonoid compounds compared with AMF or BY alone. The present results showed that, the AMF and BY individually and/or in combination which tested as soil treatment as resistance inducer treatments increased activities of PO, PPO, PAL and CA enzymes and total phenolic and flavonoids compounds to different extents in leaves of date palm offshoots comparing to the untreated control. The combination between AMF and BY recorded the highest activities of all tested oxidative enzymes and total phenolic and flavonoid compounds.","PeriodicalId":426649,"journal":{"name":"Egyptian International Journal of Palms","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126750648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}