20.500.12556/DKUM-9852 NAPOVED PRIDELKA JABOLK V ŠVICI S POMOČJO OBDELAVE DIGITALNE FOTOGRAFIJE APPLE YIELD FORECAST WITH PROCESSING OF DIGITAL PHOTOGRAPHY IN SWITZERLAND Poskus napovedovanja pridelka jabolk s pomočjo obdelave digitalne fotografije je potekal med leti 2005 in 2008 v sklopu napovedi pridelka jabolk v treh kantonih Švice (Thurgau, Wallis in Waadt). V poskus so bile vključene sorte Gala, Braeburn, Jonagold, Maigold, Idared in Zlati delišes. Namen poskusa je bil proučiti natančnost napovedi pridelka jabolk s pomočjo obdelave digitalne fotografije. Hkrati pa s statističnim vrednotenjem ugotoviti morebitne vplive regije in sorte na natančnost napovedi pridelka jabolk in možnosti izboljšanja napovedi v prihodnje. Vsako leto smo v juliju najprej fotografirali vzorčna drevesa, nato pa s pomočjo računalniške obdelave napovedali pričakovani pridelek. Statistična analiza je pokazala vpliv regije na natančnost napovedi pridelka jabolk (Thurgau Io = 0,9 do 1,17; Wallis Io = 0,98 do 1,37; Waadt Io = 0,92 do 1,06). Najboljšo napoved smo dosegli pri sorti Gala (Io = 0,99), najslabšo pa pri sorti Braeburn (Io = 1,19) Standardni odklon razlike N-T je pokazal, da se pri nekaterih sortah pojavljajo občutne razlike med napovedanim in dejanskim pridelkom ob obiranju (najmanjši pri sorti Jonagold σr = 3.798 kg/ha, največji pri sorti Gala σr = 18.718 kg/ha). Ugotavljamo da metoda omogoča precej uspešno napovedovanje, vendar obstaja še precej nepojasnjenih faktorjev. Experiment of apple yield forecast with processing of digital photography took place from year 2005 to 2008 in three cantons of Switzerland (Thurgau, Wallis and Waadt). Gala, Braeburn, Jonagold, Maigold, Idared and Golden Delicious were included in the experiment. The main purpose was to examine accuracy of apple yield forecast in different cantons. At the same time we conducted a statistic evaluation of region and variety influencing apple yield forcast accuracy, leading to improvements of the method in the future. Trees were photographed each year in July and data were processed for yield prediction. Results from statistic analysis point out the influence of region on apple yield forecast accuracy (Thurgau Io = 0,9 do 1,17; Wallis Io = 0,98 do 1,37; Waadt Io = 0,92 do 1,06). The best results were achived by Gala (Io = 0,99), the worst by Braeburn (Io = 1,19). Standard deviation of distinction N-T shows the lowest value by Jonagold σr = 3.798 kg/ha and the highest by Gala σr = 18.718 kg/ha. The method looks promising, but there are still many more unknown factors. Ključne besede: jabolka / število plodov / vizualizacija / obdelava fotografije / napoved pridelka Key words: apple / fruit number / vizualization / picture processing / yield forcast true true false Slovenski jezik Angleški jezik Diplomsko delo 2009-02-25 10:01:15 2009-03-02 09:20:43 2022-04-11 15:48:29 2022-04-15 03:25:48 2009 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:IGVWWEPS UNI_Doric_Martin_2009.pdf UNI_Doric_Martin_2009.pdf 1 CBA20024271647B2274C922B75F1E543 c3b375bcd01457c19c6f7a9b666c066f54b8d344527fe2c647d924c500fd1e8e a5b4b605-7c02-11eb-bb7a-00155d0001ca 20.500.12556/dkum/be58d77e-e403-4b5c-8f76-5754d1f50925 https://dk.um.si/Dokument.php?lang=slv&id=7546 Fakulteta za kmetijstvo in biosistemske vede 0 0 0