Isithombe: Iqabunga Lommbila Elinokutheleleka Okujwayelekile Kokugqwala
Kushicilelwe: Mashi 16, 2026 22:44:03 UTC
Isithombe esiseduze esinekhwalithi ephezulu seqabunga lommbila elinobuthi obuvamile (i-Puccinia sorghi), esibonisa ama-pustules amaningi anombala ophuzi kuya kobomvu ngokunsundu asakazeke phezu kweqabunga.
Corn Leaf with Common Rust Infection
Izinguqulo ezitholakalayo zalesi sithombe
Amafayela ezithombe atholakalayo ukuze alandwe ngezansi awacindezelwe kakhulu futhi anesisombululo esiphezulu - futhi ngenxa yalokho, ikhwalithi ephezulu - kunezithombe ezifakwe ezihlokweni nasemakhasini akule webhusayithi, ezilungiselelwe kangcono usayizi wefayela ukuze kuncishiswe ukusetshenziswa komkhawulokudonsa.
Usayizi ojwayelekile (1,536 x 1,024)
Usayizi omkhulu (3,072 x 2,048)
Usayizi omkhulu kakhulu (4,608 x 3,072)
Usayizi omkhulu kakhulu (6,144 x 4,096)
Usayizi omkhulu ngokwe-comic (1,048,576 x 699,051)
- Isalayisha... ;-)
Incazelo yesithombe
Lesi sithombe sendawo esinekhwalithi ephezulu sibonisa ukusondela okuningiliziwe kweqabunga elilodwa lommbila elithintekile ukugqwala okuvamile, isifo sefungal esibangelwa yi-Puccinia sorghi. Iqabunga lelula ngokuvundlile ohlakeni kusukela kwesobunxele kuya kwesokudla, lithatha ingxenye ephakathi yesithombe futhi ngokushesha lidonsela ukunaka kombukeli ezimpawini zesifo ezisakazeke ebusweni balo. Iqabunga ngokwalo liluhlaza okotshani olukhanyayo olunemithambo emide ebonakalayo ehambisana nobude balo, okudala ukuthungwa okuncane kanye nesakhiwo esijwayelekile samahlamvu ommbila. Ngalesi sizinda esiluhlaza esinempilo, ama-pustule amaningi aphakanyisiwe avela emaqenjini angajwayelekile kanye nokwakheka okuhlakazekile. La ma-pustule ayahlukahluka ngobukhulu kodwa ngokuvamile mancane, ayindilinga, futhi ande kancane, futhi abonisa imibala esukela ku-orenji okhanyayo kuya kumathoni abomvu ngokujulile. Ama-pustule amaningi abonakala ephukile noma ephuzi, okuphakamisa ukukhishwa kwama-spores efungal ajwayelekile ezifweni zokugqwala. Eduze kwamanye ama-pustule, ama-halos amancane okushintsha kombala aphuzi angabonakala lapho izicubu zeqabunga zicindezelwe noma zonakaliswe yi-pathogen.
Ukusabalala kwezilonda zokugqwala akulingana, kanti ezinye izingxenye zeqabunga zigcwele kakhulu kanti ezinye zibonisa amabala ambalwa kuphela ahlukene. Ama-pustules aphuma kancane ebusweni, okwenza iphethini ethambile ehluke kakhulu ne-cuticle ebushelelezi efana ne-wax yeqabunga lommbila. Amabala amancane e-spores e-orange abonakala eduze kwezilonda eziningana, okuqinisa umuzwa wokuthi ukutheleleka kuyasebenza futhi kusakazeka. Amaphethelo eqabunga ahlala ehlanzekile futhi eluhlaza, yize izindawo ezimbalwa ezincane eduze komphetho zibonisa ukuba nsundu okuncane noma ukucindezeleka okuhambisana nokuqhubeka kwesifo.
Ngemuva kweqabunga, ingemuva lifiphele kancane ngokujula kwensimu okungajulile, okugcizelela iqabunga elithelelekile ngaphambili. Izitshalo zommbila ezingagxilile zigcwalisa ingemuva, zakha izimo eziluhlaza eziqondile ezibonisa insimu yommbila eminyene. Ngakwesobunxele sohlaka, indlebe yommbila ekhulayo ebonakala kancane enama-husk aluhlaza okotshani kanye nesilika ekhulayo yengeza umongo wezolimo futhi iqinisekisa ukuthi isitshalo singummbila. Ukufiphala kwengemuva okuthambile kuhlukanisa into ezungezile, ukuqinisekisa ukuthi izimpawu zokugqwala zihlala ziyindawo ebalulekile.
Ukukhanya kwemvelo kwangaphandle kukhanyisa indawo ngokulinganayo, kugqamisa umehluko ocacile phakathi kwezicubu zamaqabunga aluhlaza anempilo kanye nama-pustules afudumele ansundu ngombala ophuzi. Ukukhanya kugcizelela ukwakheka kobuso bamaqabunga kanye nezakhiwo zesikhunta eziphakanyisiwe ngaphandle kokudala izithunzi ezinzima. Sekukonke, isithombe sisebenza njengesibonelo esicacile esibonakalayo sezimpawu zokugqwala ezivamile emmbileni, sibonisa ama-pustules ahlukile, umbala wawo, kanye nokusabalala kwawo ebusweni bamaqabunga ngaphakathi komongo obanzi wensimu yommbila.
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