Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001RESPONSE OF COTTON PLANT TO SEED COATING WITH GAUCHO OR CRUISER AND THE EFFICIENCY OF THESE TREATMENTS ON SUCKING PESTS POPULATION249525128499510.21608/jpp.2012.84995ENA. E.EL- GabieryCotton Research Institute , ARC. Giza, EgyptE. A.WahbaPlant Protection Institute, ARC, Dokki , Giza, EgyptE. G. I.HamadaPlant Protection Institute, ARC, Dokki , Giza, EgyptJournal Article20200422Two field experiments were carried out at El-Gemmeiza Agricultural Research Station , El- Gharbia Governorate, Egypt, during 2010 and 2011 seasons to evaluate the efficiency of two systematic insecticides i.e Gaucho and Cruiser as seed coating before sowing at two rates against pests which attack cotton during seedling period ( from emergence until 60 days old ) as compared with untreated seed treatment (control), in addition to some physiological aspects (growth attributes, earliness, seed cotton yield, components and fiber quality) of the Egyptian cotton <br /> ( <em>Gossypium</em> <em>barbadense</em>, L.), Giza 86 cultivar.
<strong>The obtained results could be summarized as follow:</strong>
1-Applying systematic pesticides ie. Gaucho and Cruiser as seed coating significantly increased leaf chlorophyll a, b and total chlorophyll contents, leaf area / plant, total
dry weight / plant at 60 and 75 days old in both seasons and plant height at harvest
and number of fruiting branches / plant in one season only compared with the
control (untreated seeds with Gaucho or Cruiser ).
2-Also, the two systematic pesticides significantly increased number of open bolls / plant, seed index, earliness % and seed cotton yield/ fed. in both seasons and boll
weight in one season only as compared with the untreated control .
3-The tested treatments gave insignificant effect on micronaire reading and Pressley
index in both seasons.
4-With regard to the effect of the rate used from the two systematic pesticides, the high rate of Gaucho or Cruiser increased the studied characters as compared to the low rate with one exception in the second season , where the low rate of Gaucho increased seed cotton yield / fed, as compared to the high rate of Gaucho.
5-In generally, Gaucho treatments i.e. 5 gm or 7 gm / kg seed gave the highest values of the studied characters as compared to the Cruiser treatments i.e 1 gm or 2 gm /kg seed.
6-The insecticidal activity of two neonicotinoides were studied as seed treatment at
two rates against sucking pests <em>Thrips tabaci</em> (Lind.) and <em>Aphis gosspii</em> (Glover).Data indicated that the descending order of protective efficiency according to mean number of % reduction or the peak of activity of this insect were as follows: Gaucho with two rates , high rate of Cruiser and then the low rate of Cruiser. Therefore choosing will be according to economical consideration. i.e. availability of product and unit price. On the other hand , the physiological and botanical aspects differentiated between the rate of use of these products as follows , Gaucho 5g/kg seeds had positive effect and Cruiser with 2g/ kg seeds was better in this respect.
According to this study, the economical consideration , insecticidal efficiency and physiological and botanical aspects must be as three parameters in choosing the recommended insecticides .Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF BIO AND MINERAL FERTILIZATION ON YIELD AND QUALITY OF SUGAR BEET251325248499610.21608/jpp.2012.84996ENH. M.SarhanSugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.Journal Article20200422Two field experiments were carried out at Kafr El-Hamam Research Station, Zagazig district, Sharkia Governorate, Agricultural Research Center during 2007/2008 and 2008/2009 seasons to study the effect of biofertilization treatments (control, microbin, rhizobacterin, phosphorin and their interactions) and mineral nitrogen fertilizer levels (0, 40, 80 and 120 kg N/fed) on yield and quality of sugar beet cv. Plino.
<strong>The main findings of this investigation could be summarized as follows:</strong>
1- Application the mixture of Microbeen + Rhizobacterin+ Phosphorien produced the highest values of all studied characters in both growing seasons as compared with using each bio-fertilizer alone. It was followed by application the mixture of Microbeen + Rhizobacterin then application the mixture of Rhizobacterin + Phosphorien in the two growing seasons.
2- Fertilizing sugar beet plants with 120 kg N/fed produced the highest values of root length and diameter, root and foliage fresh weights, TSS %, root and sugar yields/fed in the two seasons. However, the highest means of sucrose % and apparent purity % were resulted from control treatment (0 kg N/fed) in the two growing seasons.
3- The interaction between both studied factors had a significant effect on all studied characters in the two growing seasons.
Generally, it could be concluded that application the mixture of Microbeen + Rhizobacterin + Phosphorien as biofertilizers and adding 120 kg N/fed as a mineral fertilization for maximizing sugar beet productivity under the environmental conditions of Zagazig district,.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001RESPONSE OF GIZA 90 COTTON CULTIVAR TO WATER STRESS AND NITROGEN LEVELS WITH BORON FLOIAR APPLICATION252525398499710.21608/jpp.2012.84997ENF. S.HamedCotton Research Institute, Agric. Res. Cent. Giza, Egypt.Journal Article20200422The present study was carried out at Shandaweel Agricultural Research Station during 2009 and 2010 seasons to study the effect of water stress and nitrogen fertilization levels with boron foliar application on growth, seed cotton yield and its components of Giza 90 (<em>Gossypium barbadense</em> L.). A split-plot design with four replications was used. The main plots were assigned to water stress treatments (irrigation every two weeks and three weeks). Nitrogen fertilization levels with boron foliar application i.e., 60 kg N/fed, 60 kg N/fed + foliar spraying by boron (at budding stage beginning), 60 kg N/fed + foliar spraying by boron (at flowering stage), 60 kg N/fed + foliar spraying by boron (at budding stage beginning and flowering stage), 75 kg N/fed, 75 kg N/fed + foliar spraying by boron (at budding stage beginning), 75 kg N/fed + foliar spraying by boron (at flowering stage) and 75 kg N/fed + foliar spraying by boron (at budding stage beginning and flowering stage) were assigned in the sub-plots. The results indicated that irrigation every two weeks significantly increased plant height at harvest, number of fruiting branches/plant, number of open bolls/plant, boll weight and seed cotton yield/plant in both seasons, while, days to first open boll, seed cotton yield/fed, days to first flower appearance and location of first fruiting node (in one season only). However, number of plants at harvest was not significantly affected by water stress in both seasons. With respect to nitrogen fertilization levels and foliar spraying with boron treatments, the results indicated that, plant height at harvest, number of fruiting branches/plant and seed cotton yield/feddan were significantly increased by 75 kg N/fed + foliar spraying by boron (at budding stage beginning and flowering stage) in both seasons, while, boll weight (in 2009 season only), meanwhile, boll weight (in 2010 season only) by 75 kg N/fed + foliar spraying by boron (at budding stage beginning). However, number of open bolls/plant and seed cotton yield/plant (in 2009 season only) by 75 kg N/fed + foliar spraying by boron (at flowering stage), while, number of open bolls/plant and seed cotton yield/plant (in 2010 season only) by 75 kg N/fed. Meanwhile, location of first fruiting node and number of plants at harvest/fed were not affected by nitrogen fertilization levels + foliar spraying with boron in both seasons. It could be concluded that using regular irrigation intervals every two weeks along the whole plant life and nitrogen application 75 kg N/fed + foliar spraying with boron (at budding stage beginning and flowering stage).Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF FOLIAR SPRAY ON ONION PRODUCTIVITY UNDER RAINFALL AND SUPPLEMENTARY IRRIGATION CONDITIONS254125548499810.21608/jpp.2012.84998ENO. M.SalemPlant production Department, Desert Research CenterR. H.GhodiaPlant production Department, Desert Research CenterJournal Article20200422The field experiment was carried out during two experimental seasons of 2005/2006 and 2006 / 2007 under calcareous soil and rainfall conditions in El-Hammam region at North Western Coastal Zone (NWCZ) of Egypt. The aim of this research was to study the vegetative growth, yield and its components as well as chemical compositions of onion plants (<em>Allium cepa</em>, L.) cv. Giza-20 as influenced by 4 treatments of supplementary irrigation (rainfall, rainfall plus 60 mm/fed, rainfall plus 75 mm/fed and rainfall plus 90 mm/fed) and 4 foliar spray treatments (potassium carrying phosphor (K.P), potassium carrying nitrogen (K.N), (K.P plus K.N) and control treatment. The commercial name were Butasin – p and Butasin – N and its interaction. The concentration of each foliar spray treatment was 4 cm \ L. Application of foliar spraying was three times at 30, 45 and 60 days after transplanting.
Rainfall plus 90 mm supplementary irrigation treatment led to obtain the maximum values for all vegetative growth characteristics (survival ratio, plant length, number of leaves per plant, fresh and dry weight per plant. The values of yield, (bulb fresh and dry weight, bulb dry matter%, bulbing ratio and yield ton/fed were increased by increasing the rate of supplementary irrigation. Also, the bulb content of T.S.S., nitrogen, phosphorus and potassium, gave the highest values with using rainfall plus 90 mm/fed supplementary irrigation. Foliar spray treatment with K.P + K.N, gave the highest significant increases when compared with other foliar spray treatments on all characteristics under study,
The interaction treatment, rainfall and 90 mm supplementary irrigation combined with foliar spray treatment with K.P + K.N, led to obtain the maximum values for all characteristics under study in both growing seasons.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF OLD WOOD SIZE ON BUD BEHAVIOUR, TOTAL YIELD AND BUNCH QUALITY OF ROUMI AHMAR GRAPE CULTIVAR255525668499910.21608/jpp.2012.84999ENSawsan A.BondokViticulture Dept., Hort. Res. Instit., Agric. Res. Center, Giza, EgyptGhada Sh.ShakerViticulture Dept., Hort. Res. Instit., Agric. Res. Center, Giza, EgyptIsis A.RizkViticulture Dept., Hort. Res. Instit., Agric. Res. Center, Giza, EgyptJournal Article20200422This study was conducted for two successive seasons 2009 and 2010 at a private vineyard located at El-Khatatba region on 16-years-old. Roumi Ahmar grapevines. Grapevines were irrigated by the drip irrigation system, trained as double cordon on double T trellis system. Total number of buds per vine was fixed to (64 buds) (16 spurs X 4 buds each). The aim of this work to study the effect of old wood size on total yield per vine, bunch quality, bud behaviour and dynamic of wood ripening. Old wood size was varied as to give rise to three levels: high (13-15 Dec<sup>3</sup>), medium (11-12 Dec<sup>3</sup>) and low (8-10 Dec<sup>3</sup>).
The obtained results indicated that there were significant increases on bud behaviour expressed as percentage of bud burst, percentage of fruitful buds and bud fertility as old wood size was increased. Data showed that yield/vine, number of bunches per vine, bunch weight, weight of rachis, average berry weight and percentage of total soluble solids increased as size of old wood was increased. Also, wood ripening was found to increase by increases size of old wood.
The weight of wood prunings was determined as Kg per vine. The values were considered as an indicator for vine vigour. This estimate was shown to increase by increasing size of old wood: While, No of berries per bunch, berry index, compactness coefficient and acidity were decreased. Bud behaviour at the different position lengthwise the spur from (1<sup>st</sup> bud to 4<sup>th</sup> bud) was found to increase i.e. as percentage of bud burst, percentage of fruitful buds and bud fertility were increased as old wood size was increased.
From these results it can be included the importance of old wood size on yield/vine and bunch and berry quality of Roumi Ahmar grapevines.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF PLANTING SYSTEMS, PLANT DENSITY AND NITROGEN FERTILIZER LEVELS ON PRODUCTIVITY AND QUALITY OF SUGAR BEET256725808500310.21608/jpp.2012.85003ENH. M.SarhanSugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.M. A. E.AbdouSugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.H. M.Al-SayedSugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.Journal Article20200422<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">Two field experiments were carried out at Kafr El-Hamam Research Station, Zagazig district, Sharkia Governorate, Agricultural Research Center, Egypt, during 2007/2008 and 2008/2009 seasons to study the effect of planting systems (manual sowing and mechanical transplanting), plant densities (46000, 35000 and 28000 plants/fed) and nitrogen fertilizer levels (40, 60 and 80 kg N/fed) on yield and its components as well as quality of sugar beet (<em>Beta vulgaris </em>L<em>.)</em> cv. Plino. </span>
<strong><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">The obtained results could be summarized as follows:</span></strong>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">1-Mechanical transplanting system of sugar beet significantly surpassed the traditional sowing method (manual) in all studied characters and resulted in the highest values in both seasons.</span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">2-</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Sowing sugar beet plants with low density (28000 plants/fed) </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">recorded the highest values of root length and diameter, root and top fresh weights and TSS % in both seasons. While, </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">sowing sugar beet plants with high density (46000 plants/fed) resulted in the highest values of sucrose and apparent purity percentages in both seasons</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">. However, the highest yields of root and sugar were achieved as a result of </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">sowing sugar beet with intermediate density (35000 plants/fed)</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">in both seasons. </span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">3-Fertilizing sugar beet plants with 80 kg N/fed significantly increased yields and its components as well as TSS % and markedly recorded the highest values in both seasons. Nitrogen fertilizer at the level of 60 kg N/fed produced the highest values of sucrose and apparent juice purity percentages in both seasons. </span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">From the obtained results in this study, it can be concluded that sowing sugar beet using mechanical transplanting system with </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">intermediate density (35000 plants/fed)</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';"> and mineral fertilizing with 80 kg N/fed could be recommended in order to maximize its productivity and quality under the environmental conditions of Sharkia Governorate, Egypt. </span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">Two field experiments were carried out at Kafr El-Hamam Research Station, Zagazig district, Sharkia Governorate, Agricultural Research Center, Egypt, during 2007/2008 and 2008/2009 seasons to study the effect of planting systems (manual sowing and mechanical transplanting), plant densities (46000, 35000 and 28000 plants/fed) and nitrogen fertilizer levels (40, 60 and 80 kg N/fed) on yield and its components as well as quality of sugar beet (<em>Beta vulgaris </em>L<em>.)</em> cv. Plino. </span>
<strong><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">The obtained results could be summarized as follows:</span></strong>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">1-Mechanical transplanting system of sugar beet significantly surpassed the traditional sowing method (manual) in all studied characters and resulted in the highest values in both seasons.</span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">2-</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Sowing sugar beet plants with low density (28000 plants/fed) </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">recorded the highest values of root length and diameter, root and top fresh weights and TSS % in both seasons. While, </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">sowing sugar beet plants with high density (46000 plants/fed) resulted in the highest values of sucrose and apparent purity percentages in both seasons</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">. However, the highest yields of root and sugar were achieved as a result of </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">sowing sugar beet with intermediate density (35000 plants/fed)</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">in both seasons. </span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">3-Fertilizing sugar beet plants with 80 kg N/fed significantly increased yields and its components as well as TSS % and markedly recorded the highest values in both seasons. Nitrogen fertilizer at the level of 60 kg N/fed produced the highest values of sucrose and apparent juice purity percentages in both seasons. <span style="mso-spacerun: yes;"> </span></span>
<span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';">From the obtained results in this study, it can be concluded that sowing sugar beet using mechanical transplanting system with </span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">intermediate density (35000 plants/fed)</span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif';"> and mineral fertilizing with 80 kg N/fed could be recommended in order to maximize its productivity and quality under the environmental conditions of Sharkia Governorate, Egypt. </span>
Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001MATHEMATICAL MODELS FOR DETERMINATION THE CRITICAL PERIOD OF WEED COMPETITION IN BROADCASTED SEEDED RICE (Oryza sativa L.)258125948500410.21608/jpp.2012.85004ENR. M. H.TagourWeed Research Laboratory Central, Agric. Res. Center, Giza, Egypt.I. M.EL-MetwallyBotany Dept., National Research Center, Dokki, Giza, EgyptJournal Article20200422 Two weed competition experiments in broadcasted seeded rice were conducted during 2007 and 2008 summer seasons at EL-Serw Station, Damietta Governorate, Egypt. Ten manual weed competition and weed removal at early or late times after sowing were: - weed competition for the whole season, weed competition for 4, 6, 8 and 10 weeks from sowing, weed free for 4, 6, 8 and 10 weeks from sowing and weed free for the whole season, to determine when a natural infestation of weeds start to reduce rice yield and when stopped without yield losses in broadcasted rice. Dominant major weeds in experimental fields were barnyardgrass <em>Echinochloa crus – galli</em> (L.)Beauv, jungle rice<em> (Echinochilon columum </em>(L.) Link), small flower umbrella plant<em> (Cyperus difformis</em> (L.), nutsedge<em> (Cyperus longus</em> (L.) and hemeira <em>Dicanthium annulatum</em>.
Results showed that the maximum yield losses were 43 to 46% due to weed infestation in field experimental with average 16 ton/fed fresh weight of total weeds in both seasons, respectively, as compared to weed free plots. Using classical approach for determination the critical periods indicated that yield losses start after 3 weeks from sowing and stopping yield losses due to weed competition after 8 weeks from sowing. Using regression approach showed that the mathematical calculated model for study the relationship between weed competition or weed removal period and grain yield (ton/fed), straw yield (ton/fed) of broadcasting seeded rice was fit quadratic function. These functions had R<sup>2</sup> value 0.983, 0.899 and 0.994, 0.986 in the first season, 0.990, 0.879 and 0.993, 0.986 in the second season for grain yield and straw yield, respectively. Application this function showed that to maintain 95% of maximum grain yield of rice, growers rice should start controlling weeds not later than two weeks and continue until 7 weeks from sowing to maintain the rice potential yields by applying early suitable recommended post emergence herbicides for controlling the abovementioned spectrum of weeds and strategies of weeds management.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF SOWING DATES AND ZINC FOLIAR ON THE PRODUCTIVITY OF SOME SUNFLOWER CULTIVARS AT NEW VALLEY259526058500510.21608/jpp.2012.85005ENA. A.Abd El-lateefAgronomy Unit, Plant Production Dept. D. R. C. , EgyptJournal Article20200422Two field experiments were carried out in the DesertResearch Center (D.R.C.), Agricultural Experimental Station at El- Kharga, New Valley Governorate, during two summer seasons of 2010 and 2011. These experiments aimed to study yield and its components, oil percent (%), and oil yield at planted three dates, three sunflower varieties as affected by three zinc foliar application treatments. A split – split plot design with four replicates was used, where sowing dates devoted to the main plots, sunflower varieties allocated in the sub plots, and zinc foliar treatments arranged in the sub – sub plots.
<strong>The obtained results could be summarized as follows:</strong>
Tenth of August planting date gave the highest values for plant height (cm.), head diameter (cm.), number of seed / head, head seed weight ( g.), 100- seed weight ( g.), seed yield (kg/fad.), Stover yield (kg/fad.), oil content (%) and oil yield (kg/fad.) of sunflower varieties. Sunflower variety Hy sun 333 showed superior its over Sakha 53 and Giza 102 varieties in all studied traits. Zinc foliar treatment of 0.06% as zinc sulphate treatment gave the highest values over the control (tap water) for all studied traits. The first and second order interactions had significant effects on all studied traits.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001ROOTING OF JUJUBE (Ziziphus jujuba MILL) LI VARIETY CUTTINGS, USING SOME ROOT PROMOTING MICRO-ORGANISMS AND PLANT GROWTH REGULATORS260726248500710.21608/jpp.2012.85007ENMadlen R.SawarsanHoticulture Research Institute, Giza, Egypt.M. A.AhmedHoticulture Research Institute, Giza, Egypt.M. N.OmarSoils, Water and Environment Res. Inst., ARC, Giza, EgyptJournal Article20200422This study was conducted at the experimental nursery of the Horticulture Research Institute at Giza, Egypt to study the effect of plant growth promoting rhizobacteria (PGPR) and plant growth regulators on rooting of jujube cuttings during 2008 and 2009 seasons. Sub-terminal cuttings were taken on mid April from mature 15- years old trees of jujube (<em>Ziziphus Jujuba </em>Mill) Li variety (difficult to root). Rooting treatments included inoculation with <em>B</em>acillus<em> polymyx, Bacillus circulance, Bacillus megaterium, Bacillus pasteruii, Pseudomans</em> <em>florescence</em> ormixed inoculants from previous PGPR strains or yeast<em> (Saccharomyces cerevisae)</em>. In addition, Indole-3- Butyric Acid (IBA) and Naphthalene Acetic Acid (NAA) were also tested at concentration of 1000 and 2000 ppm as compared with untreated (control). Data showed that the effect of <em>Bacillus megaterium</em> as PGPR resulted in the highest significant rooting percentage (60% and 50%). After eight months of transplanting, bacterial strain (<em>Bacillus megaterium)</em> followed by <em>Pseudomans </em>strain surpassed the other treatments in survival percentage, average number of roots/transplant, stem and root length, number of leaves, number of branches/transplant as well as leaves, stem and root fresh and dry weight (g). On the contrary, the lowest significant effect of treatments was found as a result of NAA at 1000 ppm and control during the two seasons of study. Histological studies revealed that, the callus originated from the cambial and phloem parenchyma cells below the cork cells, from these protrusions the adventitious roots were developed. The new roots established their connections with the vascular tissue of the cutting treated with <em>Bacillus megaterium</em>. Generally, it can be concluded that inoculation jujube (Li variety) sub-terminal cuttings with <em>Bacillus megaterium </em>or<em> Pseudomans</em> <em>florescence</em> can promote root formation as well as increase survival percentage and enhance vegetative growth of the produced transplants.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF DIFFERENT LEVELS OF WATER STRESS AND HUMIC ACID APPLICATION ON YIELD, ITS COMPONENTS AND GENOTYPIC STABILITY OF SOME NEW LINES OF GURMA WATERMELON (Citrullus colocynthoides)262526348500810.21608/jpp.2012.85008ENE. A.IbrahimVeget. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza, EgyptJournal Article20200422Because saving irrigation water became a necessity recently, tolerant cultivars and different water management practices should be explored. Hence, two field experiments were carried out in a clay loam soil at Barramoon experimental farm, Hort. Res., Institute, Dakahlia Governorate, Egypt, during the two summer seasons of 2011 and 2012 to examine differences in yield and yield components among three new lines of gurma watermelon under three irrigation conditions (normal irrigation (4 irrigations), withholding last irrigation and withholding last irrigation with addition of humic acid), and to determine the lines stability for the different yield traits across irrigation conditions and identify the adapted lines. The results indicated that all studied traits were significantly decreased under water stress withholding last irrigation. But, adding humic acid in water deficit conditions increased significantly all studied characters more than under stress conditions in both seasons. Line s<sub>2</sub> had significant more number of fruits per plant, seed yield per plant, 100-seed weight and seed yield per fedden than the other two lines in both seasons. The interaction between irrigation conditions and lines had significant effects on all studied traits in both seasons. On the other hand, the stability analysis showed that the mean sum of squares due to genotypes and genotypes x environment (linear) indicated significant values for all studied traits. The variances due to environment + (varieties × environment) and environment (linear) were significant for all studied traits except number of fruits per plant. On the basis of stability parameters, S<sub>2</sub> was found to be most stable genotypes for yield attributing traits with high mean performance across different environments. Thus, this line can be used as new variety, also, it can be exploited in future breeding programs to develop high yielding and stable genotypes for water deficit conditions.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF MINERAL AND BIOFERTILIZATION ON THE PRODUCTIVITY AND SOME ANTIOXIDANTS OF CANTALOUPE GROWN IN NEWLY RECLAIMED SOIL263526548500910.21608/jpp.2012.85009ENHala A.EL-SayidVegetable and Floriculture. Dept., Fac. Agric., Mans. Univ.A. H. M.EL- FolyVegt. Dept., Hort. Res. Inst., Agric. Res. Cent., Cairo, Egypt.E. I.EL-GamilyVegetable and Floriculture. Dept., Fac. Agric., Mans. Univ.Soaad A. M.EL-NaggarVegt. Dept., Hort. Res. Inst., Agric. Res. Cent., Cairo, Egypt.Journal Article20200422The experiment was conducted to evaluate cantaloupe yield, fruits quality and storability in response to different levels of NPK and biofertilizer. The following treatments were studied in split plot design with four levels of NPK, (untreated (control), 50-25-50 kg NPK/fed., 100-50-100 kg NPK/fed. and 150-100-150 kg NPK/fed.). Biofertilizers used with two rates, (untreated (control) and 200gm microbein + 300gm phosphorien /fed.). All mineral fertilizer levels and the biofertilizer significantly increased total yield/plot, total yield/fed. (ton) and average weight of cantaloupe fruits compared with control. The combination between mineral fertilizer levels and biofertilizer gave the highest total yield/plot, total yield/fed. (ton) and average fruit weight compared with individual application. The fruits quality parameters increased by applied mineral fertilizers or biofertilizer only or combination at harvest. Application mineral fertilizers and biofertilizer increased antioxidant capacity for fruits. The pulp of fruits become more darkening, yellow and less green with improve the color and their clarity especially with the utilization of biofertilizer application. All fruits quality parameters decreased at the end of storage as compared with quality parameters at harvest but, the mineral fertilizers and bio in single application or in combinations reduced this decrement during both seasons.Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF SIX WOOD EXTRACTS FROM FAMILY MELIACEAE AGAINST Psammotermes hybostoma (DESNEUX) (ISOPTERA: RHIMOTERMITIDAE). A - EFFECT OF WINTER WOOD EXTRACTS265526658501010.21608/jpp.2012.85010ENR. M. M.SayedForestry Dept. Hort. Res. Ins., Agric. Res. Centre, GizaHoda M.Abdel WahabZoology Dept., Fac. of Science, Aswan Univ.Journal Article20200422This study aimed to study the toxic effects of wood extracts from some timber trees belong to Family Meliaceae against <em>Psammotermes hybostoma</em> at the Tropical Farm, Aswan Botanical Garden and Faculty of Science, Aswan Univ. during winter 2011 and 2012. The meliaceous trees were <em>Khaya senegalensis, K. ivorensis, Swietenia mahagoni, S. macrophylla, Azadirachta indica </em>and <em>Melia azedarach. </em>Results pointed out that <em>S. macrophylla </em>followed by <em>A. indica</em> produced the highest values of total extractives while, <em>M. azedarach</em> produced the lowest one in the two seasons. Using water as a solvent produced the highest values of all wood extractives compared to the other solvents. Moreover, increasing concentrations of the different wood extracts up to 350 mg/l in winter resulted in a gradual increasing of mortality percentage for the 3<sup>rd</sup> instars of termite. Using alcohol + benzene as a solvent extract for <em>K. senegalensis </em>followed by <em>M. azaderach</em> caused the highest values of mortality percentage for <em>P. hybostoma</em> compared to the other wood extracts. On the other hand, wood extract by benzene alone for <em>M. azaderach</em> followed by <em>K. senegalensis</em> led to the most toxic effects, while <em>S. mahogany</em> benzene extract led to the lowest one compared to the other treatments. According to LC 90 and LC 50 values, results revealed that alcohol + benzene extract or benzene alone of the tested trees at 300 and 150 ppm, respectively was highly toxic to <em>P. hybostoma</em> 3<sup>rd</sup> instars worker<strong>. </strong> Mansoura University, Faculty of AgricultureJournal of Plant Production2090-366931020121001EFFECT OF SIX WOOD EXTRACTS FROM FAMILY MELIACEAE AGAINST Psammotermes hybostoma (DESNEUX) (ISOPTERA: RHIMOTERMITIDAE). B - EFFECT OF SPRING WOOD EXTRACTS266726788501110.21608/jpp.2012.85011ENR. M. MزSayedForestry Dept..Hort. Res. Ins. Agric. Res. Centre, Giza.Hoda M.Abdel WahabZoology Dept., Fac. of Sciences, Aswan Univ.Journal Article20200422This study was carried out to study the toxic effects of different wood spring extracts from certain woody trees belong to Family Meliaceae in spring against <em>Psammotermes hybostoma</em> at the Tropical Farm, Aswan Botanical Garden and Fac. of Science, Aswan Univ. during 2011 and 2012 seasons. The meliaceous trees chosen were <em>Khaya senegalensis, K. ivorensis, Swietenia mahagoni, S. macrophylla, Azedarachta indica </em>and <em>Melia azedarach. </em>Summarized results revealed that, <em>S. mahagoni </em>followed by <em>K. ivorensis</em> produced the highest values of total extracts while, <em>M. azedarach</em> and <em>S. macrophylla</em> produced the lowest values in the two seasons. Using water as a solvent produced the highest values of all wood extracts compared to the other solvents. Moreover, increasing concentrations up to 400 mg/l of the different spring wood extracts resulted in gradual increases in mortality percentage for the 3<sup>rd</sup> instars of termite. Using 350 ppm of either <em>M. azedarach</em> or<em> K. ivorensis</em> alcohol + benzene extracts caused the highest values of mortality percentage for <em>P. hybostoma</em>. On the other hand, spring wood extract by benzene alone from either <em>M. azedarach </em>or<em> K. senegalensis </em>at 350 ppm resulted in the most effective treatments on termite compared to the other treatments. According to LC 90 (350 ppm) values, results revealed that either alcohol + benzene extract or benzene extract alone of the tested trees was highly toxic to <em>P. hybostoma</em> 3<sup>rd</sup> instars worker<strong>. </strong>Meanwhile, according to LC 50 values using the lowest concentrations (75 and 100 ppm) of alcohol + benzene extract for <em>M. azaderach</em> and <em>S. macrophylla</em>, respectively led to toxic effect on <em>P. hybostoma</em> equal to the toxicity of other trees at the highest concentration.