Ib tug tub yog ib feem ntawm cov nroj tsuag uas yog nws lub cev hloov kho. Nws yog ib qho tsim nyog rau lub cev ua haujlwm ntxiv. Cov yam ntxwv ntawm nws cov qauv thiab ntau yam ntawm tubers ntawm ntau lub hauv paus chiv keeb yuav raug tham kom ntxaws hauv kab lus no.
Lub hom phiaj ntawm kev hloov kho
Cov kab mob hauv av thiab hauv av ntawm cov nroj tsuag yog, raws li, hauv paus thiab tua. Cov nroj tsuag no ua haujlwm rau huab cua thiab av khoom noj khoom haus, nrog rau kev yug me nyuam asexual. Tab sis nyob rau hauv tej yam kev mob, cov hauj lwm ntxiv yog xav tau rau tus txheej txheem ntawm adaptation thiab nce nyob rau hauv viability. Rau cov hom phiaj no, yuav tsum tau hloov kho. Tuber yog ib tug piv txwv ntawm ib tug ntawm lawv.
Cov qoob loo hauv paus yog ib qho piv txwv zoo ntawm kev hloov kho cov kab mob hauv av ntawm cov nroj tsuag. Lawv tsim nyob rau hauv carrots, beets, radishes, radishes. Qhov no yog ib qho thickening ntawm lub hauv paus ntsiab lus, nyob rau hauv uas dej thiab cov as-ham khaws cia. Txiv neej siv lawv rau zaub mov thiab ua qoob loo.
Kev hloov pauv hloov pauv
Tuber thiab rhizome yog kev hloov kho ntawm cov kab mob saum toj no hauv av. Tsis muaj ib yam dab tsi uas xav tsis thoob hauv qhov no. Txawm tias qhov chawunderground, nyob rau hauv lawv cov qauv lawv muaj tag nrho cov seem ntawm txoj kev khiav. Lawv cov piv txwv yog tubers, qhov muag teev, rhizomes, tendrils thiab whiskers. Txhua tus ntawm lawv muaj nws tus kheej cov yam ntxwv uas txiav txim siab lawv txoj haujlwm. Piv txwv li, strawberry tendrils yog qhov tseem ceeb rau kev cog qoob loo ntawm cov nroj tsuag no. Txawm tias muaj tseeb hais tias nws tsim paj thiab noob, txoj kev no yog qhov tseem ceeb tshaj plaws. Tab sis cov txiv hmab txiv ntoo yuav tsum tau muab nws cov lashes rau kev txhawb nqa.
Ib tug leek los yog qej qij muaj ib tug ca ca hu ua hauv qab. Adventitious cag yog txuas rau nws. Lawv loj hlob nyob rau hauv bunches. Qhov no yog ib tug qauv qauv rau ib tug fibrous paus system. Kuj tseem muaj buds thiab ntau hom nplooj nyob rau hauv qab. Ib txhia ntawm lawv yog kua thiab meaty. Lawv khaws cov dej thiab cov as-ham. Lwm tus yog qhuav thiab ntom, ua hauj lwm raws li kev tiv thaiv ntxiv tiv thaiv kev puas tsuaj rau cov neeg kho tshuab thiab ntau dhau transpiration. Los ntawm buds nyob rau hauv qab, cov tub ntxhais hluas ntsuab nplooj ncua sij hawm loj hlob. Lawv hu ua ntsuab dos. Tag nrho cov txheej txheem saum toj no ua pov thawj ib zaug ntxiv tias lub teeb yog kev hloov kho ntawm kev tua.
qauv ntawm tuber
Tus piv txwv tom ntej ntawm kev hloov kho cov kab mob saum toj no hauv av yog tuber. Nws yog feem ntau rau qos yaj ywm, Jerusalem artichoke, kohlrabi. Lub tuber yog qhov tshwm sim ntawm thickening ntawm internodes ntawm qia, uas tuaj yeem ua tau ob qho tib si sub- thiab saum toj-hauv av.
Nws lub hauv paus yog qia tuab, nplua nuj nyob rau hauv cov hmoov txhuv nplej siab thiab lwm yam khoom. Cov tawv ntoo tiv thaiv nws los ntawm kev phem ib puag ncig. Raws nraimpeb ntxuav nws thaum peb siv qos yaj ywm ua noj. Tseem muaj ob lub raum ntawm lub thickened qia tuber ntawm qos yaj ywm. Lawv hu ua qhov muag. Nrog lawv pab, vegetative propagation ntawm no nroj tsuag yog nqa tawm. Nyob rau hauv lub caij nplooj ntoos hlav, cov tub ntxhais hluas tua tshwm los ntawm buds, uas tsim ib tug Bush thiab tshiab tubers.
Tsis tsuas yog tua tuaj yeem tsim tubers. Lub underground ib feem ntawm cov nroj tsuag kuj tsis muaj kev zam. Yog li, lub hauv paus tuber yog yam ntxwv ntawm dahlia, qos yaj ywm qab zib thiab chistyak. Nws tsis muaj dab tsi ntau tshaj li qhov thickening ntawm adnexal Cheebtsam ntawm cov hauv paus hniav fibrous. Txawm hais tias muaj keeb kwm thiab qhov chaw sib txawv, cov kev hloov kho no ua tau zoo ib yam nkaus.
Functions
Lub hom phiaj tseem ceeb ntawm ob lub qia thiab hauv paus tubers yog khaws cov dej nrog cov ntxhia hauv cov ntxhia thiab cov organic uas yaj hauv nws. Txhua tus paub tias cov qos yaj ywm nplua nuj npaum li cas. Nws yog nyob rau hauv nws cov tubers, nyob rau hauv lub hlwb ntawm cov ntaub so ntswg yooj yim, uas plastids, leukoplasts, muaj carbohydrates nyob rau hauv. Hauv daim ntawv no, cov nroj tsuag nrog cov kev hloov pauv yooj yim tiv taus cov xwm txheej tsis zoo, muaj sia nyob hauv av.
Lwm qhov tseem ceeb ntawm qhov kev hloov kho no yog kev siv cov vegetative propagation. Yuav kom loj hlob qos yaj ywm, nws yog txaus kom txiav lub tuber mus rau hauv ob peb qhov chaw, txhua tus yuav tsum muaj buds - ob lub qhov muag, thiab cog rau hauv av. Cov nroj tsuag no muaj cov txiv hmab txiv ntoo muaj peev xwm tsim cov noob. Tab sis lawv tus lej tsawg. Txij li thaum qos yaj ywm muajtseem ceeb ntawm kev lag luam tseem ceeb, cov kws tshawb fawb-cov neeg tsim khoom lag luam tau sim tsim ntau yam tshiab nrog ntau cov noob. Tab sis txoj kev cog qoob loo ntawm kev yug me nyuam nrog kev pab los ntawm tubers tig tawm kom tsim tau ntau dua.
Vim lub tuber yog lub tsev khaws khoom ntawm cov as-ham, cov khoom hloov pauv no yog siv los ua zaub mov. Thiab Jerusalem artichoke muaj peev xwm txo qis cov ntshav qabzib nrog kev siv tas li. Cov kws kho mob pom zoo rau cov neeg mob ntshav qab zib. Noj qos yaj ywm muab lub cev tsis tau tsuas yog nrog cov ntsiab lus carbohydrate uas tsim nyog txhua hnub, tab sis kuj tseem muaj cov microelements, xws li phosphorus thiab potassium.
Yog li, tubers yog kev hloov kho ntawm kev tua lossis hauv paus thiab ua haujlwm khaws cov as-ham, vegetative propagation. Lawv yog cov zaub mov zoo thiab kev lag luam tseem ceeb.
