Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Enhancement of Barley (Hordeum vulgare L.) Productivity by EM Foliar and Soil Amendments under the Rain Fed Conditions of the North Western Coast of Egypt4554614000810.21608/jpp.2017.40008ENM. A.GomaPlant Production Department, Faculty of Agriculture (Saba Basha), Alexandria UniversityF. I.RadwanPlant Production Department, Faculty of Agriculture (Saba Basha), Alexandria UniversityA. A.Abd El-AtiPlant Production Dept., Ecology & Dry Land Agriculture Division, Desert Research Center, EgyptE. M. M.SalemPlant Production Dept., Ecology & Dry Land Agriculture Division, Desert Research Center, EgyptHeba M. A.El AdrousyPlant Production Dept., Ecology & Dry Land Agriculture Division, Desert Research Center, EgyptJournal Article20190709Two filed experiments were conducted at Sidi-Barrani, Marsa Matrouh Governorate in the North Western Coast of Egypt during the two successive growing seasons of 2014/2015 and 2015/2016 to study the effect of different EM foliar application {Tap water (control), EM<sub>1</sub> and (EM<sub>1</sub>+ micronutrients i.e balanced Cu – Fe – Mn – Zn - Mo)}and different soil amendments<br /> {without amendments (Control), Plants residues alone, (Plants residues + EM-Bokashi), Bio-Polymer (Polyacrylamide), and Bio-Polymer (Polyacrylamide) + EM-Bokashi) } in addition to their interactions on yield and its attributes of barley cv, Giza 126 under the rainfed conditions of the North-Western Coast of Egypt. The results illustrated that all the studied characters, i.e. plant height (cm), number of spikes/m<sup>2</sup>, spike length (cm), 1000 grains weight (g), grain yield (kg/fed), straw yield (kg/fed), biological yield (kg/fed) as well as harvest index (%) was significantly promoted by each of the EM<sub>1</sub> foliar applications, Soil amendment incorporation and their interaction as compared with the control treatments. The highest significant observations for the all studied characters of barley cv. Giza 126 under rain-fed conditions were obtained from the interaction between {EM<sub>1</sub> foliar application+ micronutrients}×{Bio-Polymer (Polyacrylamide) + EM-Bokashi}.We advise that; under the rain-fed condition, such existed in the North-Western Coast of Egypt, Matrouh Governorate, foliar application of (EM<sub>1</sub>+ micronutrients) with (Bokashi + polymer) as soil amendments seemed to be necessary in order to have an appreciated yield of barley.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Integrated Agriculture of Faba Bean Using New Modified Formula of Effective Microorganisms under New Reclaimed Areas Conditions.4634714001110.21608/jpp.2017.40011ENA. A.Abd El-AtiPlant Production Dept. Desert Research Center, El-Mataria, Cairo, EgyptJournal Article20190709Series of experiments were conducted in Six October farm East Oweinat - New Valley governorate during the winter season 2009/2010 (preliminary screening two filed experiments), and the successive winter seasons of 2010/2011 and 2011/2012 respectively (principal field experiments) to study the effect of the integration between new formulas of Effective Microorganisms “EM” soil amendments and foliar fertilization on <em>Vicia faba</em> L. var. Giza 40 growth and productivity. At preliminary experiments data were recorded two times during plant growth i.e. at 65 days after sowing date; plant height (cm), plant shoot and root fresh weights (g), plant shoot and root dry weights (g), 4<sup>th</sup> leaf area (cm<sup>2</sup>), total pigments (SPDA),and at harvest time, the biological and seed yields (ton/ha) and harvest index (%).While at the principal field experiment data were collected twice during plant growth i.e. at 65 days after sowing date,4<sup>th</sup> leaf area (cm<sup>2</sup>) and total pigments (SPDA), and at harvest plant height (cm), No. of branches /plant, No. of pods /plant, seed yields (g/plant), 100 seed weight (g), biological yield (ton/ha), seed yield (ton/ha), straw yield (ton/ha). Results indicated that under severe heat and water stress conditions where there is no excess concentration of Fe either in soil or irrigation water, the combination of {EM-Bokashi + OM (1:1)} + EM-Ceramic (1 kg/ m<sup>3</sup>) × EM<sub>5-legume plus</sub> at 45 and 60 days with 8000 ppm will be the perfect fertilization programme under these conditions. Yet, where there is excess concentration of Fe in soil or irrigation water like what existed in some oasis of Egypt, {EM-Bokashi + OM (1:1)} + EM-Ceramic (1kg/ m<sup>3</sup>) × EM<sub>5-legume </sub>at 45 and 60 days with 8000 ppm will be the ideal fertilization programme under this conditions.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Micropropagation and In Vitro Secondary Metabolites Production of Ocimum Species. Review Article4734844001210.21608/jpp.2017.40012ENM. M.KasemVeget. & Floric. Dept., Fac. Agric., Mansoura Univ.Journal Article20190709<em>Ocimum</em> species have a major importance not just as an aromatic or ornamental plant which utilized for many softscape purposes, additionally as a medicinal plant because of its high substances from volatile oils and numerous secondary metabolites such as rosmarinic acid, flavonoids and anthocyanins. An overview of the recent studies conducted with the use of plant tissue culture technique for micropropagation by using the direct way like cell, tissue and organ culture or the indirect one as, callus redifferentiation and somatic embryogenesis were reviewed in this paper, because of the genetic variability could occur during the sexual propagation method (seeds). In the same time, production of the important secondary metabolites from <em>Ocimum</em> species by using different methods such as organs culture, cells suspension, cells elicitation, bioreactors and cell immobilization were also reviewed.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Different Plant Spacing on Growth and Yield of luffa4854874001510.21608/jpp.2017.40015ENS. A. A.El GendyDepartment of vegetable breeding Research, Horticultural Research Institute, Agriculture Research Centre, EgyptJournal Article20190709Two filed experiments were conducted at Moutobes district, Kafrelsheikh, Egypt during 2014 and 2015 seasons. The study amid to find out the performance of loofah plants under three plant spacing's 4X4 m,6x6 and 6x8m. The observed results could be concluded as following: different plant spacing had a significant effect on studied characteristics of loofah plants in both seasons: Narrow plant spacing of 4x4m gave the maximum number of plants/fed, number of cobs/ plant, number of total cutting and average of yield kg harvests, fruits and yield / Fadden. Meanwhile, the lowest values of aforementioned traits were noticed by wider plant spacing of 6x8m. Furthermore, plant spacing 6x8m produced longest ear diameter, ear length, plant height fruits good marketable % and number of seeds / fruit. On the other hand, plant spacing of 4x4 produced the lowest ones of plant spacing 6x6 was moderately and came in the second rank in all studied characters in both seasons.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401A Comparative Study on Fertilization of Washington Navel Orange Trees4894944004010.21608/jpp.2017.40040ENA. A. R.AtawiaHort. Dept., Fac. of Agric., Moshtohor, Benha University.F. M.Abd El-LatifHort. Dept., Fac. of Agric., Moshtohor, Benha University.H. M. A.GendiaHort. Dept., Fac. of Agric., Moshtohor, Benha University.M. A.Abdel-RahmanHort. Res. Institute, Agricultural Research Center, Giza.M. A.KhodierHort. Res. Institute, Agricultural Research Center, Giza.Journal Article20190709The effects of different soil application levels of Natural Elements Compound( NEC) either alone or in combination with EM soil application rates on Washington navel orange trees budded on sour orange rootstock grown under ''KarKashnda'' region, Qalyubeia Governorate condition to study their effects on some fruiting parameters and physical and chemical of fruit characteristics during the two successive seasons of 2013 and 2014. The obtained results revealed that all investigated treatments under study resulted in significantly increased in the most fruiting parameters and fruit characteristics as compared to the control treatment during the first and second seasons of experimental study. Moreover, data indicated that all studied treatments exhibited significantly increased fruit set % , yields either tree yield in kgs or yield expressed as tons per feddan. Furthermore, results displayed clearly that both studied fruit physical properties ( fruit weight, volume, height and diameter ) and fruit chemical characters such as TSS %, total acidity %, total sugers % and fruit juice vitamin C. contents were improved by subjected trees to different investigated treatments as compared with the control in the two experimental seasons of study. Generally, it could be concluded that , all investigated treatments under the study (NEC and EM ) either alone or in combination with them resulted in a significant and positive effects for increasing all fruiting parameters and improving most studied fruit quality. However, the treatment of (NEC<sub>4</sub> x EM<sub>2</sub>) i.e. (6.0 kgs of NEC x 900 ml<sup>3</sup>/l of EM /tree /year) exhibited statistically the best and the most effect for increasing and improving all investigated fruiting parameters and fruit characteristics of Washington navel orange trees.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Intercropping of Thompson Seedless Grapevines with some Medicinal Plants on Vine Nutritional Status, Yield, Berry Quality and the Microbiological Activity of the Soil4955014004110.21608/jpp.2017.40041ENB. E. A.BelalViticulture Department, Hort. Res. Inst., Agric. Res. Center, Giza, EgyptM. A.El-KenawyViticulture Department, Hort. Res. Inst., Agric. Res. Center, Giza, EgyptSakina I. I.IsmailMedicinal and Aromatic Plants Research Department, Hort. Res. Inst., Agric. Res. Center, Giza, EgyptA. M.Abd El-HameedPlant Nutrition Department, Soil, Water and Environment Research Institute, Agric. Res. Center, Giza, Egypt.Journal Article20190709This study was carried out during two successive seasons (2015 & 2016) in a private vineyard farm at Boktares village, Aga, Dakahlia Governorate, Egypt. The experiment was conducted on 12 years old Thompson seedless grapevines cultivar in a clay soil under surface irrigation system. The vines were trained on three vertical wires system and cane-pruned. Seeds of four medicinal plants; fenugreek, anise, black cumin and parsley were planted in rows between the vines rows in the fourth week of September 2014 and 2015 seasons. At the same time different plots were cultivated by different medicinal plants as sole crops to compare growth characters and medicinal plants yield under intercropping conditions with individual cultivation of medicinal plants without intercropping. The aim of this study was to evaluate the efficacy of intercropping of Thompson seedless grapevines with some medicinal on vines nutritional status, yield, berry quality and the microbiological activity of the soil. Obtained results revealed that intercropping of Thompson seedless grapevines with all used medicinal plants increased N, P , K and organic matter (O M) in the soil, which enhanced vines nutritional status, vegetative growth, yield and berry quality. Vines intercropped with fenugreek plant significantly increased shoot length, leaf area and total chlorophyll content in the leaves as well as yield per vine, soluble solids content and total sugar, while reduced the total acidity in berries. In addition,increased total microbial count, dehydrogenase and phosphatase enzymes activity in the rhizosphere.The economical study indicated that intercropping Thompson seedless with fenugreek gave the highest net profit/ feddan followed by intercropping Thompson seedless with black cumin, parsley and anise, respectively.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Some Antioxidants and Nutrients on Growth of Carnation Plants (Dianthus caryophyllus. L) Cv.''Giant Pink'' under High Temperature Stress5035084004410.21608/jpp.2017.40044ENM. M.Abd El-basetVegetable and Floriculture Department, Faculty of Agriculture, Mansoura University, Mansoura city, Egypt.Journal Article20190709An experiment was conducted to compare the ability of some antioxidants namely salicylic and ascorbic acids at 0.01-0.02g/l for each and nutrients namely boric, calcium, magnesium at 0.05-0.10g/l for each and potassium as a foliar spray at 0.7-1.4 g/l to decrease high temperature stress and to improve flower productivity of carnation plants. Calcium nitrite at 0.05 g/l was more effective than most of the other treatment for increasing plant height, leaf and flower numbers, fresh and dry weight of plants, pigments content of leaves and chemical composition. Calcium nitrate at 0.05 g/l as three foliar sprays at fifteen days intervals reduced the high temperature stress and improved number and quality of flowers of carnation plants.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Canopy Index and Productivity of Broadcasted Hybrid Rice (Oryza sativa L.) Influenced by Nitrogen Splitting Application5095194004910.21608/jpp.2017.40049ENW. H.EL- KallawyRice Research Department, Field Crop Research Institute., FCRI, Agriculture Research Center, Giza, Egypt.F. A.EL-EmaryDepartment Of Agric Botany , Faculty Of Agriculture, Assuit ,Al-Azhar University, Egypt.E. E.GewailyRice Research Department, Field Crop Research Institute., FCRI, Agriculture Research Center, Giza, Egypt.M. M.Abd El-HamedRice Research Department, Field Crop Research Institute., FCRI, Agriculture Research Center, Giza, Egypt.Journal Article20190709A filed experiment was layout in split plot design with three replications in two consecutive summer seasons of 2014 and 2015 in the Experimental farm of rice research section located at Sakha station, Kafr EL-Sheikh Governorate and Laboratory of Agric botany department of Faculty of Agriculture Assuit Al-Azhar university. Two Nitrogen fertilization doses in form of urea viz; 165 and 220 Kg N/ ha., were investigated under 6 schedules of nitrogen splitting application along with physiological life span of Egyptian hybrid rice one (EHR1) under broadcast seeded rice as following T1:1/2 basal(B) +1/2panicleinitiation (PI)., T2:1/3B+ 1/3ET+ 1/3PI., T3:., T5:1/4B +1/4ET +1/4PI +Mid-booting(MB)and T6:1/4B+1/4ETS+1/4PFS+1/4 panicle emergence (PE). Analysis of variance indicated that highly significant differences in all studied vegetative characters such as leaf area index, nitrogen concentration in flag leaf at flowering, vegetative dry weight at maturity under 220kg N/ha with multiple ways schedules of nitrogen application. yield and its attributes with high nitrogen dose 220kgN/ha with all schedules of nitrogen splitting application showed highly significant superiority in dry matter accumulation, chlorophyll content, nitrogen content, vegetative dry matter at maturity, leaf area index, canopy index as well as grain yield and its attributes. Four or three nitrogen doses one of them at late growth stage surpassed two way-schedule of nitrogen application in all abovementioned characters<strong>.</strong>It could be summarized that 220 Kg N/ha four equal premiums which jointed both of vegetative and reproductive growth stages with the vital premium at panicle emergence or mid-booting is considered the pertinent schedule to enhance and reach the ceiling productivity of Egyptian rice hybrid. Direct seeded for hybrid rice (DSHR) is considered the future avenue for rice cultivation in Egypt and all over the rice countries. Under DSHR improvement of canopy index is considered analeptic matrix for corresponding rice parameters which physiologically effect directly throughout raise up the contribution of post-anthesis assimilates (Current Photosynthesis) which resulted in maintaining rice grain yield and the nutritional value of rice grains and indirectly throughout increase the translocation of pre-anthesis assimilates (stored assimilates) which reflected on augmentation of harvest index.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Sprayer Nozzle Selection on Improving Weed Control by Maister Power Herbicide and Maize Crop Productivity5215274005210.21608/jpp.2017.40052ENO. M. M.MobarakWeed Research Central Laboratory, Agriculture Research Center, Giza, EgyptS. D. M.EidWeed Research Central Laboratory, Agriculture Research Center, Giza, EgyptJournal Article20190709During the last three decades pre-emergence soil acting herbicides were used widely for weed control in maize, but for the role of some of them in environmental pollution, world tended to use new chemical group as post emergence herbicides at reduced rates to limit herbicide inputs in environment as alternatives to such mentioned herbicides. For this reason two field experiments were conducted at Mallawy agriculture research station – El-Minia Governorate, Egypt, during 2014 and 2015 summer seasons, to evaluate three spray volumes using two nozzle types and four Maister power as a new post emergence herbicide rates to control weeds in maize field and their effects on maize productivity. Each experiment included twenty four combination treatments arranged in split-split plot design where spray three volumes i.e. 200, 150, 100 litre/faddan were located in the main plots, two nozzle type i.e. TK1 and flat fan nozzles were located in sub-plots and three Maister power herbicide rates i.e. 500 as recommended rate and reduced rates of 400 and 300 cc/faddan as reduced rates as well as untreated check were located in sub sub-plots. The main findings showed that spray Maister power herbicide by 150 L/faddan water carrier is good from view point of total annual weed control which were reduced by 11.2 and 12 % in 2014 and 2015 seasons, respectively, as compared with 200L/faddan. Spray volume can be increased to 200 L water/faddan in case of grassy weeds dominance in flora composition which existedin experimental fields without any harmful effect on maize plants. TK1 nozzle is preferable than flat fan nozzle type which characterized by its good distribution of herbicide spray solution droplets which reflected in improving weed control by 21.6 and 6.6% and increasing maize grain yield per faddan by 3.5 and 7.87% in 2014 and 2015 seasons, respectively, than the case of flat fan nozzle. Using Maister power at reduced rate of 400 cc/faddan was equal with 500cc/faddan without any significant difference in their control of annual weeds or maize productivity in case of the dominance of <em>Xanthium strumarium</em> L., <em>Euphorbia geniculata</em> L., <em>Corchorus olitorius</em> L. and <em>Portulaca oleracea</em> L. as annual broad–leaved weeds. <em>Echinochola colonum</em> L.and <em> </em><em>Brachiaria reptans</em> as annual grassy weed species. The correlation between weeds and maize yield (ardab/faddan) as well as its components was negative. Thus, the final conclusion indicated that the best alternative for weed control in maize by spraying Maister power herbicide at rate of 400 cc/faddan with 150 L/faddan spray volume. Using TK1 nozzle can improve the efficacy of herbicide application to reduce its rate as compared with recommended rate of this herbicide and, cost and decreasing environmental pollution.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Anticancer Activity, Antioxidant Activity, Mineral Contents, Vegetative and Yield of Eruca sativa Using Foliar Application of Autoclaved Cellular Extract of Spirulina platensis Extract, Comparing to N-P-K Fertilizers.5295364005610.21608/jpp.2017.40056ENShimaa M.HassanDepartment of Vegetable, Faculty of Ag riculture, Alexandria, Egypt.M. AshourNational institute of Oceanography and Fisheries (NIOF), Aquaculture Division, Alexandria Branch.A. A. F.SolimanDrug Bioassay-Cell Culture Laboratory, Pharmacognosy Dept., National Research Center, Dokki, Egypt.Journal Article20190709Two field experiments of rocket (<em>Eruca sativa </em>Mill) were conducted during the two seasons of 2015 and 2016 at the Experimental Station Farm of the Faculty of Agriculture, Alexandria University, at Abeis, Alex. Governorate, A.R.E, to study the effect of autoclaved cellular content of <em>Spirulina platensis</em> as a foliar spray, comparing to N/P/K chemical fertilizer, on vegetative growth, yield, antioxidant, mineral contents and the cytotoxic effect of rocket cultured after harvested against the human cancer cells A549, and HepG2. Seeds of rocket were sown on 25<sup>th</sup> of March, in both seasons. Four treatments were investigated in this experiment; three treatments from extract of <em>S. platensis </em>(5%, 10%, and 15%) and the fourth one was NPK fertilization as a control treatment. The results indicated that the highest significant plant height was observed with the foliar spraying <em>of S. platensis</em> at the rate of 15 % (43.33 and 43.63 cm, respectively). However, <em>S. platensis</em> (5 %) exhibited the lowest significant plant height (35.00 and 36.66 cm, respectively). The highest significant number of leaves was recorded with <em>S. platensis</em> at the rate of 5 % (8.33 and 9.00, respectively). On the other hand, N-P-K control treatment showed the lowest significant number of leaves (6.67 and 7.00, respectively). Also, the results indicated that treatment of <em>S. platensis</em> 10 % was responsible for the highest significant total yield, in both seasons (2.32 and 2.29 kg/m<sup>2</sup>, respectively), followed by <em>S. platensis</em> 5 % (2.03 and 2.08 kg/m<sup>2</sup>, respectively).On the other side, the treatment of <em>S. platensis</em> 5% exhibited the highest positive significant antioxidant activities of all five assays, except for DPPH. In general, under the conditions of this study, it could be concluded that, the foliar spraying of 5% conc. <em>S. platensis</em> three times (10, 18 and 26 days after sowing), achieved the best significant quantitative (vegetative growth and yield) and qualitative (total antioxidant activity) characteristics of rocket plants. Interestingly, this concentration achieved anticancer activity (61.3 %) against hepatocellular carcinoma cell line (HepG2). In addition, this treatment is very safe for human, decreased the applied NPK-dose by 100 %. This in turn would reduce the costs, environmental pollution and improving the human health.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Soaking Treatments and Temperature During Germination on Germinability and Rice (Oryza sativa L.) Seed Quality5375404006210.21608/jpp.2017.40062ENM. R.El-MowafyField Crops Res Institute, Seed Tech Res Dep, A.R.CA. M. S.KishkField Crops Res Institute, Seed Tech Res Dep, A.R.CJournal Article20190709Plant breeders are still doing best for identifying efficient screening tools for overcome heat temperature during germination without any adverse effect on seed viability. The aims of study was to determine the efficiency of soaking old seeds (natural ageing for two years) in some antioxidants namely; calcium chloride, selenium, zinc sulfate in addition to water and dry seed as control under different temperature regimes namely; 15, 20, 25, 30 and 35 <sup>o</sup>C. The results revealed that low temperature negatively affected seed quality especially germination percentage and seedling establishment whereas, high temperature gave the highest values to germinability. Calcium chloride 1% was more efficient to all studied traits followed by 50 ppm selenium compared with control (dry seed).The interaction between factors revealed that 1% calcium chloride more efficient at different temperature regimes (low and high temperatures).The results suggest that soaking old seeds in calcium chloride for 24 h can mitigate effects of different temperature regimes and keep quality of old rice seeds. Also, can save costs and time of farmers.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Partial Substitution of Chemical Fertilization of Banana (Musa cavendishii L.) Plants by Organic Stimulators5415484006610.21608/jpp.2017.40066ENM. N.HelalyAgricultural Botany Department, Faculty of Agriculture, Mansoura University, El-Mansoura, EgyptA. R.El-HoseinyTropical fruit Dep.Horticultural Research Institute, Agricultural Research Center; (ARC) Giza, EgyptJournal Article20190709Effects of organic fertilizer (compost) and/or humic acid as a stimulators on minimizing mineral nutrition rate were evaluated in order to decreasing the environmental pollution and high cost of banana production. Field experiments were carried out during two growing seasons (2014/2015and2015/2016) at wadi El-Natrun, Nubaria region, El-Behera Governorate, Egypt on Grand Naine cultivar grown in sandy soil and the irrigation was pumped from a well fresh water (1.18 dSm<sup>-1</sup>). The data indicated that application of compost with or without humic acid minimizing the recommended values of mineral fertilization used for banana production to about 50% without affecting on its productivity. Using 50 ton compost with spraying banana plant (Grand Naine cv) three times on the middle of April, May and June by humic acidat 1500 ppm gave best results with regard to growth, flowering and maturity as well as productivity. These recommended treatments stimulated all studied growth parameters as well as recorded earliness flowering and maturity. In addition it increased, bunch weight and total yield as well as improved physical and chemical characters of the fruits in relative to the control.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effects of Silicon and Yeast Extract on Growth, Flowering and Yield of Banana (Musa cavendishii L.)5495544006810.21608/jpp.2017.40068ENM. N.HelalyAgricultural Botany Department, Faculty of Agriculture, Mansoura University, El-Mansoura, EgyptHanan A. R.El-HoseinyTropical fruit Dep.Horticultural Research Institute, Agricultural Research Center; (ARC) Giza, EgyptJournal Article20190709Field experiments were carried out during the two growing seasons of 2014/2015 and 2015/2016 on 1<sup>st</sup> and 2<sup>nd</sup> ratoons of Williams banana plants irrigated with saline water and received potassium silicate and/or yeast extract. Growth, flowering as well as yield and fruit quality were evaluated. The data indicated that both materials were very effective in increasing salt tolerance, all growth parameters studied, earliness flowering and maturity, bunch weight and improving fruit quality compared with the control. Yeast extract showed additive effects to the potassium silicate in this respect. Thus, it could be recommended that supplementations of K<sub>2</sub>SiO<sub>3 </sub>to the saline irrigation water accompanied with spraying yeast extract four times, 4 weeks intervals, from the middle of April induced salt tolerance and productivity of Williams banana plants, irrigated with pumped saline water. Potassium silicate at 3% combined with yeast at 20 g/l gave the best results with regard growth, flowering as well as yield and fruit quality.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-36698420170401Effect of Spraying GA3 and Cyanocobalamin (Vit. B12) on Fruit Set, Yield, and Fruit Quality of Le-Conte Pear Trees5555584007010.21608/jpp.2017.40070ENA. A.Abd El-BaryHorticultural research institute, Agricultural Research Center, Giza, EgyptJournal Article20190709This study carried out during 2013 and 2014 seasons to study the effect of foliar application of GA<sub>3 </sub>(at 15 and 30 ppm) and B<sub>12 </sub>(at 2 and 4 mg L<sup>-1</sup>), and the combinations between them. The study aims to improve fruit quality of "Le-Conte "pear trees. Materials were applied at 30% of bloom, 70% of bloom and after fruit set. Measurements included: vegetative growth, leaf area, leaf chemical content, fruit yield and quality. Mentioned components, responded positively to the studied treatments. The application at high concentration GA<sub>3</sub> 30 ppm plus B<sub>12</sub> 4 mg L<sup>-1 </sup>is recommended to improve productivity which increased grower income. Generally, this study achieved main target for fruit producers, high yield, quality which led to increased grower income.