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In article we overview 19 years of a 33 year long sporting career of the gymnast Aljaž Pegan. His scores, ranks and exercises on the horizontal bar are presented for each World Championship. Exercises are further broken down into individual elements and descriptions of those elements. They are presented in accordance with the Code of Points published by Federation International Gymnastics, which was in force for a particular four-year period, and a theoretical comparison was made, taking into account all the changes and adjustments, with the Code of Points 2013-2016. Additionally, breakdowns of the seven Codes of Points for the horizontal bar which were in force in the period from 1989 to 2013 are also shown. Adaptation to the changing criteria of the Code of Points can be seen in the exercises through upgraded elements, which Aljaž could grasp due to his exceptional knowledge of basic motor structures such as: free hip circles, giant swings, flights and elements in double el-grip. During his career Aljaž and his coach invented two unique elements that bear his last name in the Code of Points, Pegan on the horizontal bar and on the parallel bars. His greatest success was at the World Championship in Melbourne, Australia in 2005, where he became the World Champion on the horizontal bar. V članku je razčlenjenih 19 let – od 33 letne – tekmovalne kariere telovadca Aljaža Pegana. Njegove ocene, uvrstitve in sestave na drogu so predstavljene za vsako svetovno prvenstvo. Sestave so dodatno razčlenjene na posamezne prvine in njih opise. Predstavljene so v skladu s Pravilnikom za ocenjevanje Mednarodne telovadne zveze, ki so veljala za določeno štiriletno obdobje, in narejena je bila teoretična primerjava ob upoštevanju vseh sprememb in prilagoditev s Pravilnikom za ocenjevanje 2013 -2016. Poleg tega so prikazane razčlenitve sedmih Pravilnikov za ocenjevanje, ki so veljali v obdobju od 1989 do 2013. Prilagoditev spreminjajočim se kriterijem Pravilnika za ocenjevanje je mogoče videti v sestavah s prvinami, ki jih je Aljaž dodajal zaradi izjemnega znanja osnovnih gibanj na drogu, kot so vse vrste točev, letov in prvin v obrnjenem podprijemu. Med svojo kariero sta Aljaž in njegov trener izumila dve prvini, ki nosita njegov priimek v Pravilniku za ocenjevanje, Pegan na drogu in Pegan na bradlji. Njegov največji uspeh je bil na svetovnem prvenstvu leta 2005 v Melbournu v Avstraliji, kjer je postal svetovni prvak na drogu.

Hazelnut (Corylus avellana) is cultivated on 118 ha and ranks eighth in Slovenian fruit growing production, representing 2.8% of the total area of fruit plantations in the country. However, decline of some of the trees appeared in 2012 in two plantations located in eastern Slovenia. Together these orchards cover 5 ha, with around 1600 trees planted 12 to 15 years ago. By October 2018, ~12% of these trees had died, and an additional 12% showed decay symptoms. The dead and dying trees were scattered throughout both orchards, with no apparent pattern. The most affected cultivar was ‘Istrska dolgoplodna leska’. Using molecular diagnostic methods, we showed infection of symptomatic trees with three unrelated phytoplasmas: ‘Candidatus Phytoplasma fragariae’, of the 16SrXII-E phytoplasma subgroup, and phytoplasma of the 16SrV and 16SrIX groups. In 2018, the presence of ‘Ca. P. fragariae’ and/or phytoplasma of 16SrV group were confirmed in decayed hazelnut trees in eastern, north-eastern, central, south-eastern and western Slovenia. ‘Ca. P. fragariae’ has also been detected in a forest in south-western Slovenia, for Acer campestre, Carpinus betulus, Crataegus laevigata, Fraxinus ornus and Quercus petraea. All infected forest trees showed unusual dense proliferation of sprouts from roots and/or trunks. Molecular characterisations of partial 16S rRNA, secY, map and ribosomal protein genetic locus of hazelnut 16SrV phytoplasma isolates show that they are identical to isolates that can cause grapevine flavescence dorée disease. Here, the results of our recent study and the open questions on this burning issue for hazelnut production are presented.