Rast in razvoj orhidej (Phalaenopsis sp.) v različnih substratih

• Main Author: Rančnik, Jaka
• Other Authors: Osterc, Gregor
• Format: Bachelor Thesis
• Language: Slovenian
• Published: J. Rančnik 2021
• Subjects: Phalaenopsis; sorte; orhideje; epifiti; substrat; cultivars; orchids; epiphyte; substrates; info:eu-repo/classification/udc/635.9:582.581.1:631.4(043.2); sami
• Online Access: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=132191; https://repozitorij.uni-lj.si/Dokument.php?id=149738&dn=; https://plus.si.cobiss.net/opac7/bib/80853763?lang=sl

Poskus za diplomsko nalogo se je začel 22. 2. 2019. Takrat smo rastline orhideje sorte 'Anthura Cambridge' iz rodu Phalaenopsis posadili v tri različne substrate (Ocean orchid substrat, šotni substrat in mešani mix substrat). V rastni dobi smo spremljali različne parametre rasti in razvoja rastlin in jih zapisovali v preglednice. Spremljali smo dolžino rozete, širino rozete, število listov, višino vratu rozete, težo mokrega in suhega substrata, dolžino prirasti cvetega stebla in število cvetov. Iz pridobljenih rezultatov smo nato izračunali povprečne vrednosti in standardno deviacijo za posamezne substrate. Izračunali smo tudi delež vode. Poskusa smo se lotili z namenom, da ugotovimo v kakšnem substratu rastline najbolje uspevajo. Pričakovali smo, da bodo rastline v šotnem substratu najbolje uspevale. Proti koncu poskusa so skoraj vse rastline zacvetele. Opazili smo bistveno razliko v sami velikosti in prirastu rastlin. Orhideje, ki so rasle v mešanem substratu, so bile najmanjše. V povprečju so imele najmanjše rozete, povprečno 4 liste, cvetna stebla dolga 20 cm in najmanj cvetov. Največji prirast so imele orhideje v 'Ocean orchid' substratu in šotnem substratu, te so imele tudi največ cvetov. Povprečne dolžine cvetnih stebel so bile okrog 30 cm, imele pa so 5 - 6 listov in 3 – 5 cvetov. Rastline so cvetele vse do novembra, nato pa so zaradi zunanjih temperatur doživele rahel šok. Spremljali smo še prirast stranskih cvetnih stebel in ugotovili, da se je najmanj cvetnih stebel razvilo ravno pri mešanem substratu (mix). Kljub temu, da so vse rastline uspešno rastle, so se vseeno kazale razlike med substrati. Generalno smo najboljše rezultate opazovali pri rastlinah v substratu iz šotne gobe ter 'Ocean orchid' substratu, najslabše pa v substratni mešanici. The experiment for the diploma thesis started on February 22, 2019. At that time, we planted orchid plants of the variety 'Anthura Cambridge' from the genus Phalaenopsis in three different substrates (Ocean orchid substrate, peat substrate and mixed mix substrate). During the growing season, we monitored various parameters of plant growth and development and recorded them in tables. We monitored rosette length, rosette width, number of leaves, rosette neck height, weight of wet and dry substrate, flower stem increment length, and number of flowers. From the obtained results, we then calculated the average values and standard deviation for individual substrates. We also calculated the proportion of water. We undertook the experiment in order to determine in which substrate the plants thrive best. We expected the plants in the peat substrate to thrive best. Towards the end of the experiment, almost all the plants bloomed. We observed a significant difference in the size and growth of the plants themselves. Orchids growing in a mixed substrate were the smallest. On average, they had the smallest rosettes, an average of 4 leaves, flower stalks 20 cm long and the fewest flowers. Orchids had the largest increase in 'Ocean orchid' substrate and peat substrate, which also had the most flowers. The average lengths of the flower stalks were around 30 cm and they had 5 - 6 leaves and 3 - 5 flowers. The plants bloomed until November, after which they experienced a slight shock due to the outside temperatures. We also monitored the growth of lateral flower stalks and found that the fewest flower stalks developed in the mixed substrate (mix). Despite the fact that all the plants grew successfully, there were still differences between the substrates. In general, the best results were observed in plants in peat substrate and 'Ocean orchid' substrate, and the worst in the substrate mixture.