Higher genetic gain results were obtained in open-pollinated sycamore  families measured at age seven years . The estimated high values were perceived to be inflated because members of the open-pollinated families were probably more closely related than half-sibs. The genetic gain for the number of leaves at age four was recorded as zero, since this variable presented zero heritability. Therefore no gain can be accumulated concerning this variable at this age. At age five, combined selection yielded a higher value than family selection. Among all the traits, the highest genetic gain was recorded for volume index and the joint model used resulted in a more efficient selection strategy. Gain can be increased if superior genotypes are vegetatively propagated , a possibility that exists for elite mother trees ofGreek origin regarding this experimental plantation . This result indicated that the provenance-progeny experimental trial of Taxiarchis has ample amounts of genetic variation in the quantitative traits studied and sufficient gains can be foreseen. Forests in the Republic of Serbia occupy 2.252.400 ha, in percentages expressed 29% of the total area of the Republic. In the past, the woods of Serbia were be-tween 35% – 40%.As far as the oaks themselves are state-owned, the highest share is 9.7%, followed by a hybrid with 7.5%, sugar 3.6%, gluten with 2.7%, and a brass with 0.9% . Since this paper deals with the sandwich, it should be noted that the forests of sandblast  in the Republic of Serbia cover 32,238 ha . This is a solid percentage and significant area under the alkaline forests in the Republic of Serbia, which represents a great ecological and economic potential and therefore should be paid attention and adequate treatment.Concerning air study of the area, it is quite continental to moderately continental.

Climatic conditions differ depending on the altitude, relief and exposure with the average annual temperature is 11.8˚C, the period without frost of between 180 – 215 days and the period of sunshine of 2100 hours per year. The maximum and minimum temperatures ranged in their absolute amount of 41.7˚C. It can be concluded that there are large fluctuations in temperature, potted blackberry plant where the hottest months are July and August, and the coldest January and February. Furthermore, average annual rainfall is 681.8 mm, and since the winds are the most northern squally wind. The snow and wind have negative effects and fractures in cultures are noticeable as it is well known that black pine has deep roots and resistant to rippings by the wind, which is not the case with heavy snowfalls and strong winds. In order to study floristic composition and phytosociological determination of belonging study stands, phytocoenologically captured at all sample plots obtained by the method of Braun-Blanquet’s. In all experimental fields is done the following: entire dendrometric diameter measured, diameter, height, drill punched the tree, for taking increment cores and computation of gain, by Presler method. On the basis of the data, the volume and growth were calculated and measurements and analysis of growth rings were performed in the laboratory, by special instruments and related software . Observing the action of both endogenous and exogenous factors was conducted, supporting on the state of the stand and directly, based on quantitative and qualitative characteristics of volume increment. Monitoring the situation stands, covers, mostly components that are related to stand structure and which, together with the analysis increments allow for a realistic assessment of the current situation and future forecast development.The investigated area of G.J. Rogot once turned to Velika Morava  and, in most part, turned towards Lepenica. The third and least part of this gaz unit is not affected by any rivers, creeks, etc. Oak forests are in the aforementioned rubber unit “Rogot”, about the same age: 80 years. This is quite enough for the age of the tree, for dendroclimate analysis, to make the research valid. In the investigated area, oak forests will be analyzed through field experiments, depending on the hydrological impact . Hydrological influence is what they differ, given the position of the field. They are also distinguished by their solitude. A clear correlation between hydrological impact and dendrological characteristics of oak is obtained.Lepenica is the largest and most important river of the investigated area. It springs near Gledić Mountains in the village Goločelu, and flows into VelikaMorava as a left tributary. It flows from its source from the south-west towards the north-east through the Kraagujevac basin.

Lepenica’s length is 49 km. Earlier length was 60 km. and it ran parallel with Morava. However, since the great flood in 1987, it has been regulated and now flows in the direction of the northeast. Lepenica yields close to 4.5 m3 of water to the Great Moray. However, in the case of large droughts, as in 2017, this quantity is falling to 2 m3 . Lepenica runs 40 liters per second. We need to mention the local river: on the explored area: Dobrovidačka river, then: Cvetojevski potok, Botunjski potok, and others.In order to arrive at the final results, we used computer programs for the processing of climatological data . Computer programs are based on IPCC climate models, and programs are from the software package from the web site: KNMI Climate Explorer, like COFECHA programs, and ARSTAN. These programs -climate models  represent the basic tool for dynamic scaling of the results of global climate models and assessment of future climate change caused by the increase in the concentration of greenhouse gases in the earth’s atmosphere . It is the basic method for analyzing climate change in a specific research area. The results of climate models have been verified so far and have therefore enhanced confidence in this approach. Regular IPCC reports are based on the results of these models . The associated regional climate model EBU-POM, which was used, was created by linking the regional model, the atmosphere and the ocean . The acronym of this model is derived from the name of the component EBU  and POM . The reason for including the ocean component in the system is due to the fact that for long periods of time such as climatic, atmospheric and ocean interactions have to play a decisive role in defining the state of both components individually . For all climate models that are useful for obtaining desired results, it is necessary, above all, to “register users and log in” to access the system, except for access to climate data  they allow us to correlate and regression analysis, calculate possible extrema, and many other climate information that are necessary for dendrokylmatological research. The above programs, all the data we make available to them freely, are processed and a single essence  is displayed, which is graphically displayed. As we got it for the first, we got both the second and third field of view. The results and statistical data processing will be displayed through items.Children are particularly prone to orbital injury because the developing orbital bone offers little resistance. Foreign bodies most often encountered in the orbit are metallic objects and glass fragments.

Ocular complications of intraorbital foreign body include optic nerve damage, extraocular muscle palsy secondary to direct muscle trauma or nerve damage, proptosis and orbital cellulitis. It is uncommon for an orbital foreign body to present with isolated eyelid involvement. We report a rare presentation of an intraorbital foreign body presenting as a lower lid entropion in a 7-year-old boy. A 7-year-old boy presented to our eye clinic with a complaint of inward turning of the left lower lid for 3 days duration. According to the mother, the child was playing alone in the garden a week ago when part of the roof of their home suddenly broke off. She was alerted by the noise, and when she stepped into the garden, she noted a few bits of broken tiles on the ground. The child appeared to be unharmed, but complained of left eye irritation. She immediately brought him to a general practitioner, who reassured them that the patient had a normal eye examination. The left eye irritation resolved spontaneously, and the vision was good, with no double vision. However, after three days, the mother noticed that the left lower lid appeared to be inverted. When this did not resolve spontaneously, she brought her son to the ophthalmology clinic. On examination, the visual acuity in both eyes was 6/6. Extraocular movements were full in both eyes, but there was pain in the left eye on upgaze position. There was a left lower lid entropion, and palpation of the left eye revealed a deeply embedded foreign body in the lower lid . The entropion was attributed to the mechanical effect of the foreign body. There were no signs of a conjunctival or corneal laceration wound . Both anterior segments and fundi were normal. The intraocular pressure was 14 mmHg in both eyes. Skull X-ray showed a left lower lid radio-opaque foreign body. Computed tomography  scan of the orbits revealed a well-defined foreign object with sharp edges in the lower orbit . The object was projecting in an infero-oblique direction, fracturing and traversing the anterosuperior wall of the left maxillary sinus . It measured 1.4 cm × 0.8 cm in size. The left eye foreign body was removed via a transconjunctival approach. The object was embedded in the inferior lower fornix,tall pot stand extending until the inferior orbital rim. It was identified as a stone, which was removed in one piece . It measured 1.3 cm × 0.7 cm.

The patient was assessed further by the oral-maxillary-facial team, who decided that no internal fixation was required for the inferior orbital rim fracture. The patient was started on a five-day-course of intravenous amoxicillin clavulanate and metronidazole, which was continued orally for another week. Topical ceftazidime was also instilled 4 hourly. On post-operative day one, there was slight oedema of the left lower lid region, which resolved on subsequent follow-up. He was last seen 2 weeks post op and his wound had completely healed. He was planned for an entropion repair after 6 weeks.Intraorbital foreign bodies usually occur secondary to high velocity injuries, such as in gunshot or industrial accidents. However, in cases where the trauma is deemed trivial, patients may not give a clear history of a penetrating injury. In this case, as the patient was playing unsupervised, the mother could not provide a clear history of trauma, and even the examination by a general medical practitioner failed to reveal the intraorbital foreign body. We postulate that the most likely mechanism of injury was that upon hearing the sound of the roof breaking, or perhaps alerted by bits of the falling debris, patient looked upwards, and a piece of the debris pierced the tarsal conjunctiva to bury itself in the inferior orbital rim. Early clues giving rise to a clinical suspicion of an intraorbital foreign body include eyeball displacement, persistent inflammation and conjunctival chemosis. In cases where there is an associated fracture of the orbital floor, limitation of ocular movement with diplopia usually occurs, mainly due to inferior rectus entrapment and rarely, from nerve injury or muscle contusion. In cases of retained organic foreign bodies, decay of the material over time with superimposed infection almost always results in abscess formation. In cases where the foreign object is relatively inert, such as in this case,patients may be completely asymptomatic. It is likely that the initial discomfort experienced by the patient stemmed from the associated conjunctival wound. The latter was likely a self-sealing wound, which partially explains how the diagnosis was missed at the first presentation. A recent review highlights the importance of detailed examination of the conjunctiva and fornices as intraorbital foreign bodies usually penetrate the conjunctiva without causing eyelid laceration. Imaging is invaluable in the evaluation of the globe and orbital integrity post trauma. Although X-ray is the initial imaging in cases of suspected intraorbital foreign bodies, computed tomography  scan is the investigation of choice when there is a definitive history of penetrating injury, as even in cases of a radio-opaque object clearly visualised on X-ray, CT assists in planning of the surgical approach. It also enables to estimate the integrity of the orbital tissue and bone surrounding the foreign body.