Scientific Society for Flowers and Ornamental PlantsScientific Journal of Flowers and Ornamental Plants2356-78643420161201EFFECT OF GAMMA IRRADIATION AND SOME HOLDING SOLUTIONS ON VASE LIFE OF GERBERA CUT FLOWERS215232513510.21608/sjfop.2016.5135ENOla A.AminOrnamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Giza, Egypt.Azza M. Abdel-MoneimAbdel-MoneimOrnamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Giza, EgyptHanan M.A.YoussefOrnamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Giza, EgyptJournal Article20160901Nowadays, the most of investigations are directed towards the using of natural materials for reducing pollution environment. So, this study was consummated at Post-Harvest Lab. of Floriculture Dept., Hort. Res. Inst., Giza, Egypt during 2012 and 2013 seasons to study the effect of some holding solutions, viz. distilled water (control), calcium chloride (1 & 3 g/l), calcium claw (1 & 3 g/l), egg shell (0.5 & 1.5 g/l), oysters (0.5 & 1.5 g/l), humic acid (50 & 150 g/l) and three doses of gamma irradiation (100, 200 & 400 Gy) on longevity of flower heads (vase life), water uptake, water loss, relative fresh weight, dry weight and flower diameter of <em>Gerbera jamesonii</em>, cv. Rosalin & Express cut flowers. The obtained results cleared that application of CaCl<sub>2</sub> (1 or 3 g/l) with HQ 0.2 g/l and 20 g/l sucrose resulted in a great extension in vase life and water uptake more than other treatments. Rosalin cultivar recorded significant increase in longevity, water uptake comparing to gerbera cut flowers of cv. Express during the two seasons. Gamma ray (200 Gy) recorded the least rate of water loss in cv. Rosalin in the two seasons. Superiority was for the treatment with oysters (1.5 g/l) in improvement of relative fresh weight in both seasons followed by gamma ray (200 Gy), also gamma irradiation at the doses 200 Gy plus CaCl<sub>2 </sub>at 1 g/l + sucrose at 20 g/l significantly increased dry weight of the two cultivars Rosalin and Express followed by claw (1 g/l). All treatments gave higher record in comparison with control for diameter. The present research indicated that the application of CaCl<sub>2</sub> (1 g/l) with HQ 0.2 g/l and 20 g/l sucrose after exposure of cut flowers to irradiation with gamma at (200 Gy)maximizes flower diameter. Results showed that, treating with CaCl<sub>2 </sub>at 3 g/l + HQ at 0.2 g/l and suc. at 20 g/l, or gamma rays at 200 Gy + CaCl<sub>2 </sub>at 1 g/l + HQ at 2 g/l + Sucrose at 20 g/l registered the highest increments in chlorophyll a in the stems and soluble sugars in the stems and petals. It is concluded that the use of the holding solution containing calcium chloride at 3 g/l plus hydroxyqenolin plus sucrose alone or after irradiation with gamma at 200 Gy gave the maximum vase life.<br /> <strong> </strong>Scientific Society for Flowers and Ornamental PlantsScientific Journal of Flowers and Ornamental Plants2356-78643420161201EFFECT OF PINCHING AND PACLOBUTRAZOL ON HIBISCUS ROSA-SINENSIS, L. cv. “Yellow” PLANT233244513610.21608/sjfop.2016.5136ENZeinab H.El-SadekOrnamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Giza, EgyptJournal Article20160908A pot experiment was carried out during two successive seasons 2014/2015 and 2015/2016 at the experimental nursery of Ornamental Plants and Landscape Gardening Department, Hort. Res. Inst. to study the effect of pinching and paclobutrazol (PP<sub>333</sub>) on growth, flowering and chemical composition of<em> Hibiscus rosa-sinensis</em>, L. cv. “Yellow”to produce dwarfed plants. Plants were pinched before treating with paclobutrazol (0.0, 3 and 4 ppm as a drench at 250 cm<sup>3</sup>/pot, or 0.0, 30 and 40 ppm as a foliar spray). The plants received 6 doses at one month interval during the growing season. Data revealed that pinching decreased fresh and dry weight of flowers. It also increased the content of total carbohydrates, indoles and phenols in the leaves. Pinching and spraying the plants with PP<sub>333</sub> at 40 ppm decreased the height of plant, while spraying PP<sub>333</sub> at 40 ppm without pinching increased number of leaves, length of roots and fresh and dry weight of roots. Plants sprayed with PP<sub>333</sub> at 40 ppm with or without pinching had higher contents of total carbohydrate, indoles and phenols. Treating plants with paclobutrazol as a drench at 4 ppm increased chlorophyll a and b contents. It was recommended spraying pinched plants with PP<sub>333</sub> at 40 ppm to produce dwarfed plants.<br /> <strong> </strong><br /> Scientific Society for Flowers and Ornamental PlantsScientific Journal of Flowers and Ornamental Plants2356-78643420161201EFFECT OF GROWING MEDIA AND CHEMICAL AND BIO FERTILIZATION ON VEGETATIVE GROWTH OF MORINGA OLEIFERA PLANTS245253513710.21608/sjfop.2016.5137ENAtef Z.SarhanDepartment of Ornamental Horticulture, Cairo Univ., Giza, Egypt.Azza M.S.ArfaDepartment of Ornamental Horticulture, Cairo Univ., Giza, Egypt.HusainGonawDepartment of Ornamental Horticulture, Cairo Univ., Giza, Egypt.Journal Article20161010This trial was outlined at the nursery of the Ornamental Horticulture Department, Faculty of Agric., Cairo Univ., Egypt during two successive seasons of 2014 and 2015.<br /> The investigation was conducted to investigate the effect of soil type (sandy, clayey and sandy + clayey) and bio fertilizers (green power) and chemical fertilization (NPK at 6, 8 and 10 g/pot) and the interaction between them of vegetative growth parameters of <em>Moringa oleifera</em> plants.<br /> The obtained results revealed that clayey or sandy + clayey as a medium in combination with green power fertilization and NPK at 8 g/pot gave the highest values of plant height and stem diameter. Also, the obtained highest values of fresh and dry weights of vegetative growth parts resulted due to using clayey or sandy + clayey medium in combination with green power and NPK 8 g/pot.<br /> The best results of root fresh and dry weights, were obtained due to the use of sandy + clayey medium in combination with green power bio fertilizer and NPK at 10 g/pot.<br /> <strong> </strong><br /> Scientific Society for Flowers and Ornamental PlantsScientific Journal of Flowers and Ornamental Plants2356-78643420161201RESPONSE OF MORINGA OLEIFERA TREES TO BIO-, CHEMICAL FERTILIZATION AND GROWING MEDIA255263513810.21608/sjfop.2016.5138ENAtef M.Z.SarhanDepartment of Ornamental Horticulture, Cairo Univ., Giza, Egypt.Azza M.S.ArfaDepartment of Ornamental Horticulture, Cairo Univ., Giza, EgyptHusain A.GonawDepartment of Ornamental Horticulture, Cairo Univ., Giza, EgyptJournal Article20161010This trial was outlined at the nursery of the Ornamental Horticulture Department, Faculty of Agric., Cairo Univ. during two successive seasons of 2014 and 2015.<br /> The study was conducted to investigate the effect of different soil types (sand, clay and sand + clay) and bio-fertilizers (microbine) and chemical fertilization (NPK at 6, 8 and 10 g/pot) and the interaction between them on vegetative growth parameters of <em>Moringa oleifera </em>plants.<br /> The obtained results revealed that the use of clay in combination with NPK at 8 g/pot gave the highest values of plant height and stem diameter. Also, the obtained highest values of fresh and dry weights of vegetative growth resulted due to using clay or sand + clay medium in combination with microbine + NPK at 10 g/pot and NPK at 8 g/pot.<br /> The best results of root fresh and dry weights, were obtained due to the use of clay in combination with microbine + NPK at 10 g/pot and NPK at 8 g/pot.<br /> <strong> </strong><br />