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Shirin Rezvanypour, Abdollah Hatamzadeh, Seyed Ali Elahinia and Hamid Reza Asghari

. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. Circular (USDA) 939: 1-19. PERKIN-ELMER 1982. Analytical methods for atomic absorption spectrophotometry. Norwalk: Perkin-Elmer Corporation Connecticut, USA, 530 p. Perner H., Schwarz D., Bruns C., Mäder P., George E. 2007. Effect of arbuscular mycorrhizal colonization and two levels of compost supply on nutrient uptake and flowering of pelargonium plants. Mycorrhiza 17: 469-474. DOI: 10.1007/s00572-007-0116-7. Phillips J.M., Hayman D.S. 1970. Improved procedures for

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Małgorzata Zalewska and Małgorzata Antkowiak

References Dobrowolska A., Janicka D. 2007. The effect of growth regulators on flowering and decorative value of Impatiens hawkeri W. Bull belonging to Riviera group. Rocz. AR Pozn., Ogrodn. 41: 35-39. [in Polish with English abstract] Erhardt W., Götz E., Bödeker N., Seybold S. 2008. Zander. Handwörterbuch der Pflanzennamen. 18 Auflage, Eugen Ulmer KG, Stuttgart, p. 142. Grzesik M. 1989. Factors influencing the effectiveness of growth regulators in nursery production. Acta Hort. 251: 371

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N. Lyngdoh, R. P. Gunaga, Geeta Joshi, R. Vasudeva, G. Ravikanth and R. Uma Shaanker

References ALIZOTI, P. G., K. KILIMIS and P. GALLIOS (2010): Temporal and spatial variation of flowering among Pinus nigra Arn. Clones under changing climatic conditions. For. Ecol. and Mgt. 259: 786-797. ANDERSSON, E. (1960): Froplantagen I Skogsbrukets Tjanst [Seed orchards in Swedish Forestry] Satryck ur Kungl. Skogs-och Lantbruksaadememiens Tidskrift. 99, 65-87. ANMOL KUMAR (1992): Teak seed improvement-achievement and problems. Indian Forester 116, 525-533. ASKEW, G. R. (1986): Implication

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Ernest Stawiarz and Anna Wróblewska

46(4): 300-310. DOI: 10.1080/00173130701776490 Scheller V. H. (1974) Die Bestimmungsmerkmale der kultivierten Laburnum-Arten. Mittelungen der Deutsche Dendrologischen Gesellschaft. 67: 45-51. Seneta W., Dolatowski J. (2012) Dendrologia. PWN. Warszawa. 544 pp. Sparks T. H., Jeffree E .P., Jeffree C. E. (2000) An examination of the relationship between flowering times and temperature at the national scale using long-term phenological records from the UK. International Journal of Biometeorology 44(2): 82-87. DOI: 10

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K. Kato, S. Yamaguchi, O. Chigira and N. Osaka

References EDDY, M. R. and F. W. JUDD (2003): Phenology of Acacia berlandieri, A. rigidula, A. schaffneri, and Chloroleucon ebano in the lower Rio Grande Valley of Texas during a drought. The Southwestern Naturalist 48: 321-332. GARCIA-MOZO, H., F. ORLANDI, C. GALAN, M. FORNACIARI, B. ROMANO, L. RUIZ, C. D. GUARDIA, M. M. TRIGO and I. CHUINE (2009): Olive flowering phenology variation between different cultivars in Spain and Italy: modeling analysis. Theoritical Applied Climatology 95: 385-395. COLLIER, M. H

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Florin Toma, Mihaela Ioana Georgescu, Sorina Petra, Cristina Manescu, Ecaterina Ailincai and Daniel Constantin Potor

. Ed. Partos, Timisoara. Cantor M., 2016. Floricultură specială. Ed. Academic Pres, Cluj-Napoca. Craine G., 2014. Fooling Mother Nature: Forcing Flower Bulbs.Virginia Cooperative Extension. Virginia Tech. Virginia State University. Publication HORT-76NP. 10 pp. De Hertogh A. A., 1997. Technologies for forcing flower bulbs. ISHS Acta Horticulturae 430; 24. Dole M. J., 2003. Research Approaches for Determining Cold Requirements for Forcing and Flowering of Geophytes. HortScience Vol. 38 (3), June 2003, 341

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D. D. Sigariova and V. G. Karpliyk

We studied the composition of the parasitic nematodes in the flowering and ornamental plants cultivated at the greenhouse facilities in the city of Kyiv. We found 9 species from the genera Meloidogyne Goeldi, 1887, Ditylenchus Filipjev, 1936, Pratylenchus Filipjev, 1934, Rotylenchus Filipjev, 1936, Tylenchorhynchus Cobb, 1913, Helicotylenchus Steiner, 1945, Paratylenchus Micoletzky, 1922, and Heterodera Schmidt, 1871. We also discovered the nature of the external manifestations of the nematodes’ effect on the plants and the plants’ response to the infection. Special attention was paid to the loss of the ornamental properties. In order to rank the loss of the ornamental properties of the plants under nematode infection, the scale (ranking system) was suggested. It includes 5 grades applicable to the exterior appearance of the plants, where “5” stands for “excellent”; “4” stands for “good” “3” stands for “satisfactory”; “2” stands for “unsatisfactory”; and “1” stands for “bad”. Th e joint parasitic activity of two nematode species (D. dipsaciі and R. robustus in asparagus, and D. dipsaciі and M. incognita in begonia) caused the highest level of infection progress observed (4 points), and this resulted in worsening of the exterior appearance of plants and in decrease of their ornamentality/ornamental properties down to “bad” (1 point). Th e parasitic activity of P. penetrans in coleus coincided with a high degree of the infection progress (3 to 3.5 points) while the ornamental properties of the plants corresponded to the gradations identified as “unsatisfactory” (2 points) and “bad” (1 point).

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Regina Dębicz, Anna Pawlikowska, Katarzyna Wróblewska and Przemysław Bąbelewski

64(4): 99-106. DOI: 10.5586/aa.2011.051. Dębicz R., Pawlikowska A., Wróblewska K., Bąbelewski P. 2016. Influence of foliar treatment with silicon contained in the Actisil Hydro Plus preparation on the growth, flowering and chemical composition of Gazania rigens (L.) Gaertn., Salvia farinacea Benth and Verbena hybrida Voss. Journal of Elemntology 21(3): 681-692. DOI: 10.5601/jelem.2015.20.2.909. Fauteux F., Rémus-Borel W., Menzies J.G., Bélanger R.R. 2005. Silicon and plant disease resistance against pathogenic fungi. FEMS

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Emilia Wilmowicz, Kamil Frankowski, Agata Kućko, Jacek Kęsy and Jan Kopcewicz

, Spiegelstein H, Goldschmidt EE, and Halevy AH. 1990. Flowering response of Pharbitis nil to agents affecting cytoplasmic pH. Plant Physiology 94: 114–119. Hudgins JW, Ralph SG, Franceschi VR, and Bohlmann J. 2006. Ethylene in induced conifer defense: cDNA cloning, protein expression, and cellular and subcellular localization of 1-aminocyclopropane-1-carboxylate oxi-dase in resin duct and phenolic parenchyma cells. Planta 224: 865–877. Kathiresan A, Nagarathna KC, Moloney MM, Reid DM, and Chinnappa CC. 1998. Differential regulation of 1-aminocyclopropane-1-carboxylate

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Ahmad K. Hegazy, Abdelrahman A. Alatar, Jon Lovett-Doust and Hosam A. El-Adawy

References ABBAD, A., BENCHAABANE, A., 2004: The phenological study of Atriplex halimus L. African Journal of Ecology 42, 69-73. ÅGREN, J., EHRLEN, J., SOLBRECK, C., 2008: Spatio-temporal variation in fruit production and seed predation in a perennial herb influenced by habitat quality and population size. Journal of Ecology 96, 334-345. AUGSPURGER, C. K., 1983: Phenology, flowering synchrony and fruit set of six neotropical shrubs. Biotropica 15, 257-267. AYYAD, M., ABDEL-RAZIK, M