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Todd J.,U.S. Department of Agriculture | Wang J.,University of Florida | Glaz B.,U.S. Department of Agriculture | Sood S.,U.S. Department of Agriculture | And 7 more authors.
Genetic Resources and Crop Evolution | Year: 2014

The Saccharum L. genus includes important crops that are utilized for sugar and fuel production. The World Collection of Sugarcane and Related Grasses (World Collection) in Miami, FL contains diverse and potentially useful germplasm for this and related genera; however, this collection has been underutilized because little is known about the traits of its accessions. Our objectives were to phenotypically characterize the World Collection and select a representative core collection that could then be studied intensively. In total, eight morphological traits of the World Collection were evaluated three times in 1 year. A core of 300 accessions that included each species in the World Collection was selected by using the Maximization Strategy in MStrat software. The core had a higher diversity rating than random selections of 300 accessions. The Shannon–Weaver Diversity Index scores of the core and whole collection were similar indicating that the majority of the diversity was captured by the core collection. The ranges and medians between the core and World Collection were similar; only two of the trait medians were not significant at P = 0.05 using the non-parametric Wilcoxon method and the coincidence rate (CR % = 96.2) was high (>80) indicating that extreme values were retained. Thus, the phenotypic diversity of these traits in the World Collection was well represented by the core collection. Agronomic studies on the core should be useful for characterizing the World Collection and genes for useful traits should be available in the core collection. © 2014, Springer Science+Business Media Dordrecht (outside the USA).


Abd El-Lattief E.A.,South Valley University | Bekheet M.A.,Sugar Crops Research Institute
Sugar Tech | Year: 2012

Two field experiments were performed during 2010/2011 and 2011/2012 seasons to evaluate the effects of seven growth regulators treatments (IAA 100 ppm, IAA 200 ppm, IAA 300 ppm, GA 3 100 ppm, GA 3 200 ppm, GA 3 300 ppm and control) on quantitative and qualitative attributes of three sugarcane varieties (Phil. 8013, G. 98-28 and G. T. 54-9). Such trials were carried out at Shandaweel Agricultural Research Station, Sohag, Egypt using a randomized complete block in split plot design with four replicates. Sugarcane varieties and growth regulators treatments were randomly distributed in the main and split plots, respectively. Results revealed that commercial variety G. T. 54-9 gave the highest values of stalk thickness, number of valid stalks per ha, stalk yield, brix value, pol %, sugar % cane and sugar yield per ha. Among the seven growth regulators treatments, GA 3 at 300 ppm gave the highest values of above mentioned traits and stalk height. On the other hand, juice purity was unaffected by varieties or growth regulators treatments. The interaction effect of variety × plant growth regulators was not significant for all measured traits. Correlation coefficient values of different yield and quality characters with sugar yield were positive and highly significant. The highest values of correlation coefficients with sugar yield were exhibited from sugar % cane (r = 0.931), pol % (r = 0.829) and stalk cane yield (r = 0.636). © 2012 Society for Sugar Research & Promotion.


Badshah H.,Agricultural Research Institute | Wajid A.,Lakson Tobacco Company Ltd | Sattar S.,University of Peshawar | Saeed M.,Hazara University | Anwar S.,Sugar Crops Research Institute
Thai Journal of Agricultural Science | Year: 2011

Six different groups of insecticides i.e. Ripcord 10 EC, Siron 20 EC, Confidor 20 SL, Methomyl 20 EC, Regent 50 SC and Tracer 240 SC were tested to find out the most effective one for the control of Helicoverpa armigera on tobacco in Department of Crop Development, Lakson Tobacco Company Limited Mardan Khyber Pakhtunkhwa, Pakistan during the year 2006. All the treatments gave significant control of the pest as compare to check one. Minimum percent infestation and maximum yield and grade index were recorded in plots receiving the Tracer applications and were significantly different to observations recorded in plots receiving other spray applications and untreated check. Maximum percent infestation and minimum yield, grad index were observed in check plots where no application was practiced. Based on the total yield and level of infestation Tracer 240 SC or Methomyl 20 EC is recommended as the most promising insecticide for the effective management of Helicoverpa armigera in FCV (Flue cured Virginia) tobacco.


Abd-El-Khair H.,National Research Center of Egypt | Abd-El-Fattah A.I.,Sugar Crops Research Institute | El-Nagdi W.M.A.,National Research Center of Egypt
Archives of Phytopathology and Plant Protection | Year: 2013

Survey results during 2010-2011 season revealed that the Meloidogyne spp., Helico-tylenchus spp. and Tylenchorhynchus spp. were the common plant parasitic nematodes in the rhizospheres of sugar beet in El-Behera, El-Fayoum and Beni Sueif Governorates. Aspergillus spp., Aspergillus niger, Fusarium spp., Penicillium spp., Penicillium chrysogenum, Penicillium citrinum, Rhizoctonia spp., Rhizopus nigricans, Trichoderma spp. and others were also the common fungi in the same rhizospheres. The rhizosphere of El-Behera Governorate was highly infected with Meloidogyne spp., Fusarium spp. and Rhizoctonia spp., compared to the rhizospheres of El-Fayoum and Beni Sueif, respectively. Evaluation of five of sugar beet cultivars, viz. Chems, Dema-Poly, DS 9001, Manila and Ras-Poly to infection, with Meloidogyne incognita (root-knot nematode), Fusarium solani and Rhizoctonia solani (root rot disease) was carried out under naturally field infection condition in the Nubariya region, Behera Governorate during 2011-2012 season. Host susceptibility rating revealed that the varieties of Ras-Poly, DS 9001 and Manila can be considered as susceptible, while the varieties of Dema-Poly and Chems can be considered as highly susceptible. Pathological results showed that the varieties of Dema-Poly and Ras-Poly were highly infected with F. solani, while not infected with R. solani. The varieties of DS 9001, Manila and Chems were moderately infected with the two pathogens. © 2013 Taylor & Francis.


Abido W.A.E.,Mansoura University | Ibrahim M.E.M.,Sugar Crops Research Institute | El-Zeny M.M.,Sugar Crops Research Institute
Asian Journal of Crop Science | Year: 2015

To study the effects of antioxidants foliar application (without spraying, spraying with ascorbic acid "AA", salicylic acid "SA" and citric acid "CA", in addition, spraying with the mixture of AA+SA+CA) and potassium fertilizer levels as top dressing (12, 24, 36 and 48 kg K2O/fed, fed or feddan = 4200 m2) on sugar beet growth, yields, its components and root quality. Two field experiments were conducted in Tag Al-Ezz, Agricultural Research Station Farm, Dakahlia Governorate, Agricultural Research Center, Egypt during 2012/2013 and 2013/2014 seasons. A strip-plot design with four replications was used. Results showed that highest growth attributes, yields and its components were resulted from foliar spraying twice with the mixture of antioxidants of 150 ppm of each of AA+SA+CA in both seasons. However, spraying with 150 ppm of AA came in the second rank. Highest Total Soluble Solids (TSS) and sucrose percentages were obtained from foliar spraying twice with 150 ppm of CA. In addition, highest apparent juice purity percentages were obtained from spraying twice with 150 ppm of SA in the first season and spraying twice with 150 ppm of CA in the second season. Fertilizing with 48 kg K20/fed recorded highest growth attributes, root and top yields and its components in both seasons. While, fertilizing with 36 kg K20/fed came in the second rank. Highest sugar yield/fed, TSS%, sucrose% and apparent juice purity% were obtained from fertilizing with 36 kg K20/fed in both seasons. In order to maintain the agricultural resources, reduce environmental pollution and maximum sugar beet growth, yields and its attributes, it could be recommended that spraying twice with the mixture of antioxidants of 150 ppm of each of AA+SA+CA and mineral fertilizing with 36 kg K2O/fed as a top dressing application. © 2015 Asian Network for Scientific Information.


Khattab S.N.,Alexandria University | Massoud M.I.,Sugar Crops Research Institute | Jad Y.E.-S.,Alexandria University | Bekhit A.A.,Alexandria University | And 3 more authors.
Food Chemistry | Year: 2014

New stevia amino acid sweeteners, stevia glycine ethyl ester (ST-GL) and stevia l-alanine methyl ester (ST-GL), were synthesised and characterised by IR, NMR (1H NMR and 13C NMR) and elemental analysis. The purity of the new sweeteners was determined by HPLC and their sensory properties were evaluated relative to sucrose in an aqueous system. Furthermore, the stevia derivatives (ST-GL and ST-AL) were evaluated for their acute toxicity, melting point, solubility and heat stability. The novel sweeteners were stable in acidic, neutral or basic aqueous solutions maintained at 100 °C for 2 h. The sweetness intensity rate of the novel sweeteners was higher than sucrose. Stevia amino acid (ST-GL and ST-AL) solutions had a clean sweetness taste without bitterness when compared to stevioside. The novel sweeteners can be utilised as non-caloric sweeteners in the production of low-calorie food. © 2014 Elsevier Ltd. All rights reserved.


El-Gizawy E.,Water and Environmental Research Institute | Shalaby G.,Sugar Crops Research Institute | Mahmoud E.,Tanta University
Communications in Soil Science and Plant Analysis | Year: 2014

A field experiment was carried out during two successive seasons of 2009-2010 and 2010-2011 at Sakha Agriculture Reseach Station, Egypt, to study the effects of different applications of compost tea (C) under three mineral nitrogen (N) levels and their interaction effects on sugar yield and juice quality characteristics of sugar beet (Beta vulgaris L.), and soil available nutrients. Results indicated that the sugar yield and juice quality characteristics of sugar beet were significantly increased with compost tea treatments, especially in the plots treated with compost tea foliar application in three batches. A quality percentage of sugar beet was increased about 8.0% in the plots treated with compost tea or interaction between N mineral N and compost tea treatments above the control treatment. The interaction between mineral N and compost tea treatments had a significant effect on sugar yield, sugar percentage, purity, and quality of sugar beet and soil fertility. © Taylor & Francis Group, LLC.


Elateef I.A.A.,Sugar Crops Research Institute | Abbas M.S.,Cairo University | Gaber E.-S.I.,Cairo University | Saif L.M.A.,Sugar Crops Research Institute | El-Geddawy I.H.,Sugar Crops Research Institute
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2016

To evaluate the performance of three sugar cane varieties as affected by nitrogen and potassium fertilizations, field experiment was carried out at Malawy Agricultural Research Station in the two successive seasons of 2012/2013 and 2013/2014. Each field trail included twenty seven treatments, three sugarcane varieties (G.T.54-9 the commercial variety as a control, G.2001-79and G. 99-103), three nitrogen levels (220, 280 and 340 kg N/fed.) and three potassium levels (24, 48 and 72 K2O kg/fed.). Results indicated that the increasing of nitrogen rate from 220 to 280 up to 340 attained a significant increment in cane yield. Also, the increasing of potassium level slightly increased cane yield /fed, in the 1st season only. Sugar cane variety G.99-103 over passed significantly the other two varieties and the promising variety G.99-103 attained additional increase over the commercial one by 5.11 and 4.88 ton/fed in the 1st and 2nd seasons respectively. The sugar yield increased significantly by increasing of nitrogen rates and the highest sugar yield was recorded with 340 kg N /fed. There is a positive and significant increase in sugar recovery percentage in the 1st season, where increasing of potassium was accompanied by significant decrease in the values of sugar recovery percentage.


Awney H.A.,Alexandria University | Massoud M.I.,Sugar Crops Research Institute | El-Maghrabi S.,Sugar Crops Research Institute
Journal of Applied Toxicology | Year: 2011

Several attempts to decrease sugar demand by introducing stevioside as a sugar substitute in children's food products have been made, but safety issues were concerned. This exploratory study investigated the effects of stevioside low dose (SL), high dose (SH) and low dose with inulin (SL + I) for 12 weeks on the body weight, organ relative weight, hematological and biochemical parameters and enzyme activities of young male rats. The SL dose used in this study was 15mgkg -1 per day and the SH dose was 100-fold the low dose. Enormous similarities in most parameters were observed with no significant differences between SL, SL + I and control except in the lipid profile. Total lipid reduction in SL and SL + I and significant high-density lipoprotein increase in SL + I were observed, which may be considered as clinically beneficial. Significant decreases in serum tartrate-resistant acid phosphatase activity were also observed in all treatments. Treatment with SH caused significant changes in all investigated toxicological parameters. The results indicated that, although the SL dose was higher than the stevioside temporary accepted daily intake (5.0mgkg -1 body weight), no toxicological effects were observed in SL or SL + I on body weight, organ relative weight, hematological and biochemical parameters or enzyme activities investigated in this study, whereas stevioside high dose (1500mgkg -1 per day) may be considered as a toxic dose for the same biological parameters in young male rats. However, the effects of SL, SH and SL + I on serum tartrate-resistant acid phosphatase activity need more investigation. © 2010 John Wiley & Sons, Ltd.


PubMed | Mansoura University and Sugar Crops Research Institute
Type: Comparative Study | Journal: Pakistan journal of biological sciences : PJBS | Year: 2014

Two field experiments were carried out at Kafr El-Hamam Research Station, Zagazig district, Sharkia Governorate, Agricultural Research Center, Egypt, during 2008/2009 and 2009/2010 seasons to study the effect of sowing methods (manual and mechanical), weed control treatments (one hoeing, Goltix 70 WG (metamitron), Goltix+one hoeing and two hoeing) and nitrogen fertilizer levels (60, 80 and 100 kg N/fed) on yield, its components and quality of sugar beet cv. Hanrike. The obtained results could be summarized as follows; Mechanical sowing method of sugar beet significantly surpassed the traditional sowing method in root and foliage fresh weights/plant, root/top ratio, root length and diameter, root, top and sugar yields/fed in both seasons. Sowing methods showed significant effect on TSS, sucrose and purity percentages in both seasons, except purity% in the second season. Controlling weeds by two hand hoeings significantly recorded the highest values of root, top and sugar yields/fed and its components and purity percentage in both seasons. However, the highest percentages of TSS and sucrose were achieved from controlling weed by one hand hoeing in both seasons. Fertilizing sugar beet plants with 100 kg N/fed significantly increased yields and its components and markedly recorded the highest values in both seasons. From the obtained, it can be concluded that sowing sugar beet using mechanical sowing method (planter machine), controlling weeds by hand hoeing and mineral fertilizing with 100 kg N/fed could be recommended in order to maximize its productivity and quality under the environmental conditions of Sharkia Governorate, Egypt.

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