Pošlji prispevek (e-pošta) Učinek odstranjevanja spomladanskih cvetnih nastavkov in namakanja na ponovno cvetenje in pozno zorenje plodov opuncije Opuntia ficus-indica (L.) Mill.
Povzetek
V raziskavi je bil preučevan učinek odstranjevanja nastavka prvih pomladanskih cvetnih nastavkov in treh namakanj na ponovno in pozno zorenje plodov opuncije. Odstranjevanje nastavka pomladanskih cvetov (postopek «skocolatura» -scozzolatura practice) in namakanja sta imela značilen učinek (p ≤ 0,05) na ponovno cvetenje in pozno dozorevanje plodov opuncije. Pri nenamakanih in neodstranjenih prvih cvetnih nastavkih (NINSP) je cvetenje potekalo od desetega marca do petindvajsetega maja 2017, zorenje plodov pa od dvajsetega maja do petnajstega avgusta, 2017. Pri namakanih in skocolatiranih rastlinah (ISP) je ponovno cvetenje potekalo od petnajstega junija do štiriindvajsetega avgusta, zorenje plodov pa se je podaljšalo na obdobje od enaindvajsetega julija do dvajsetega novembra, 2017. Število plodov je bilo večje pri ISP rastlinah (92-103 na rastlino) kot pri NINSP rastlinah (81 na rastlino). Pridelek plodov je bil večji pri NINSP (56,2 t ha-1) kot pri ISP rastlinah (26,2-36,5 t ha-1), tudi masa plodov (123-131 g) in dolžina plodov (7,83-7,92 cm) sta bili večji pri pri ISP kot pri NINSP rastlinah (masa plodov 103 g in dolžina plodov 7,72 cm). Delež soka v plodovih je bil pravtako večji pri ISP (49-55 %) kot pri NINSP rastlinah (43 %), a vsebnost sladkorjev je bila večja pri NINSP (15,20 °Brix) kot pri ISP rastlinah (13,83-14,56 °Brix).
Ključne besede
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DOI: http://dx.doi.org/10.14720/aas.2023.119.1.2639
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