Research concerning the composition and organoleptic features

Research in soil drench application of insecticides to protecttomatoes and cucumbers crops in solariumHoza Gheorghiţa 1 , Buzatu Mihaela Alina 21 University of Agronomical Science and Veteritary Medicine Bucharest; 2 ICDLF Vidra*Corresponding author. Email: hozagh@yahoo.comAbstract The research was conducted in a solarium gown tomatoes, Prekvariety, cucumber, Mirabelle F1 hybrid, in the testing group from ICDLFVidra, Giurgiu County.In the cultures under study there were drenched Nudrin Actar 200and SC 25 WG into the soil, 100 ml / plant each, after 10-15 days from thefinal planting in the solarium. The concentration of each solution was of0.008%. Both insecticides were aimed to reduce populations of greenhousewhite flies (Trialeurodes vaporariorum - Westw) and of cucumber green lice(Cerosipha gossypii – Glove). Their effect on plants was studied at each 3, 7,14, 21 and 28 days, throughout counting the number of pests remaining onthe plants. From the obtained results, it can be shown that the two productsare highly effective on tracking and destroying the pests.Regarding the effect of these pesticides on the greenhouse white fly, both attomato and cucumber cultures, it was observed that the maximum reductionof L1-L2 adult and larvae populations occurs after 21 days and of L3-L5larvae after 14 days. In what regards the cucumber green lice both productsshowed a swift, reducing 90% of the population after only three days.. Actarreduced the population at its maximum after 14 days, but Nudrin showed alonger period of time.Key wordstomatoes, cucumber, plantprotectionResearch regarding the behavior of some apple tree varietiesin high density plantations in Campia RomanaHoza D. 1* , Ion Ligia 1 , Diaconescu M. 1 , Iosif F., 11 University of Agriculture Science and Veterinary Medicine Bucharest, Faculty of Horticulture*Corresponding author: hozadorel@yahoo.comAbstract The extension of the culture area of the apple tree can representa solution for a higher capitalization of the field, where the pedo-climaticconditions are favorable. The comparative study of nine apple tree varietiesgrafted on M9, in superintensive orchard, in the climatic conditions of CampiaRomana, showed that the area is favorable for the apple. The growth of thetrees was consistent with the biological characteristics and was slightlyinfluenced by the climatic year. The analyzed varieties showed had a goodbehavior, from the fourth year of culture the production was good and verygood, reaching values of 25 t/ha. The average of three years of study showeda high fructification capacity (29-30 t/ha) for the varieties Florina, Idared, Sirprise and Generos.Key wordsapple, superintensiveplantation, production