La Dense Eggeria, inozivikanwawo se chirimwa chemvura chinonzi Elodea, ine kukura kunogona kusvika 4m pakadzika, madzinde acho makondakita anosvika pamamirimita maviri kana kutopfuura pakureba.
Mashizha akarongedzwa mukati mapoka mana kusvika masereIwo akareba 1 kusvika 4 masendimita uye maviri kusvika mashanu masendimita paupamhi, ane kona yakapinza.
Zviratidzo
Icho chirimwa icho ine maruva echikadzi neechirume, Inogadzira maruva ane mamirimita ari pakati pe12 kusvika 20 dhayamita, iine maruva matatu akapamhama, machena, ane chimiro chakakomberedzwa, chiyero chemamirimita gumi kana chirimwa chiri chirume, uye kusvika pamamirimita manomwe kana chirimwa mune munhukadzi.
Muti wacho une hunde yakati rebei ine ruvara rwegirini, mashizha mashoma ane chimiro che lanceolate akarongedzwa muchimiro chakashongedzwa pakati peatatu kusvika mashanu. Ruvara rwakanyanya rune mashizha pamwe chete nemadzinde, zvinoita kuti ive chirimwa chinoshandiswa zvakanyanya kumakungwa.
Habitat uye kugovera
Iyo Elodea Icho chirimwa chinowanikwa kune yakadzikama mvura muSouth America, inoitika munyika dzakaita seArgentina, Brazil neUruguay. Yatiza kubva kumabasa ekurima, yakave yakasarudzika kuva chirimwa chinopinda munzvimbo dzakadzikama uye dzinopisa dzenyika, kusanganisira Europe, nzvimbo dzeSouth Africa, Australia, Asia, North America neNew Zealand.
Izvo zvinogonawo kudaro tsvaga mumadhamu ekugadzira kana zvakare mune echisikigo, mune matsime ezvimwe zvikwata, mumatorongo ari kune rimwe divi pane dzimwe nzira, mumatope kana zvakare munzvimbo idzodzo dzemafashama eapo neapo nekuzara kwenzizi nehova.
Kuchengeta iyo Dense Eggeria
Zvinokurudzirwa kuisa simbi inowanikwa mune yemvura fomu zuva rimwe chete pasvondo. Chirimwa ichi chinokura nekukurumidza uye chinoburitsa mhando yechinhu chinodzivirira bhuruu-green algae kubva kukura
Nezve kukura kwakakura kudaro, chirimwa idambudziko kana kuchekerera kusingaitwe nguva dzoseNaizvozvo, kuchekerera kunofanirwa kuitirwa kuumbika pamwe nekumaka kana kukura kwacho kwakanyanya. Nekudaro, izvo zvinodikanwa kuti urege kuchekerera nguva dzose sezvo elodea inodzivirira kuvandudza kweredha.
Chirimwa ichi inogona kugadziriswa kukura muchiedza chakajeka uye mune yakaderera mwenje. Kana yakura iine mwenje wakawanda, madzinde anozove nerima girini rakasvibira uye kukura kwavo kunosvika pamamita maviri pakureba munguva pfupi. Kana wakura mune yakaderera mwenje, internodes uye mashizha achave akareba, dzinde racho rakatsetseka uye rakatetepa uye ruvara rwechigadziro rwese rwuchasvibirira.
Sezvineiwo, inofanirwa kunge iine substrate iyo inobvumira iyo kuti itore zvese zvinovaka muviri, carbon dioxide inofanira kupihwa Kuitira kuti iwe photosynthesize nemazvo, chengetedza kutonga kweye tembiricha kukosha pamwe nematanho epH.
Zvirwere
Chlorosis Ichi chirwere chinokanganisa kukura kweelodea kana ivhu riine pH yakawandisa kana inowanikwa mucalcareous ivhu. Zviri nyore kwazvo kuzivasezvo ichiita yero yeruvara mutsinga dzemashizha matsva, asi inogona zvakare kuoneka pamashizha ekare. Kana iron chlorosis yakanyanyisa, inokonzera yero yeruvara, pamwe necrosis mumashizha uye kunyangwe kufa kwechirimwa.
Muchiitiko chekuti chirimwa chiri muvhu rakashata, chelate diki yesimbi inofanirwa kuwedzerwa kumadiridziro ekurapa chirwere. Muchiitiko chekuti mvura iine calcareous kana alkaline, yakanaka ndeyekuti mvura yekudiridza inorapwa neacidifying chigadzirwa. Muzviitiko zvakakomba zvakanyanya zvakaita sealkaline kana ivhu rine calcareous, mhinduro yekurapa chirwere ichi ingave yekushandisa zvigadzirwa zvakasiyana zvemakemikari kana kutsiva chikamu chevhu rose neimwe ivhu ine acidic.