Cov fiddleheads twg muaj tshuaj lom?

Cov txheej txheem:

Cov fiddleheads twg muaj tshuaj lom?
Cov fiddleheads twg muaj tshuaj lom?

Video: Cov fiddleheads twg muaj tshuaj lom?

Video: Cov fiddleheads twg muaj tshuaj lom?
Video: leej twg tej ntxhai - Mang Vang [ Official MV ] 2024, Hlis ntuj nqeg
Anonim

None of fiddlehead ferns ntawm sab hnub tuaj thiab nruab nrab North America yav dhau los tau tshaj tawm tias muaj tshuaj lom (3). Txawm hais tias qee cov ferns tej zaum yuav ua rau mob carcinogenic (4), ostrich fern tau raug txiav txim siab tias muaj kev nyab xeeb noj cov nqaij nyoos lossis siav (5-9).

Yuav ua li cas fiddleheads tsis noj?

Ntxhais Fiddleheads

Ntxhais fiddleheads noj thaum lawv tseem hluas - thaum lawv loj hlob mus txog 1 mus rau 2 ntiv saum av. Thaum lawv loj hlob tuaj, cov ferns yuav iab thiab puv puv ostrich ferns -- unfurled -- yuav tsum tsis txhob noj.

Puas yog tag nrho cov fiddleheads nyab xeeb noj?

Fiddleheads tiag tiag yog cov tub ntxhais hluas curled ntawm fern. … Muaj ntau ntau yam ntawm ferns nyob ib ncig ntawm peb, tab sis cov pos nphuab thiab cinnamon fern yog ob qho tib si uas noj tau thiab nyab xeeb noj. Lwm hom ferns zoo ib yam tab sis tej zaum yuav muaj tshuaj lom.

Koj puas noj fuzzy fiddleheads?

fiddleheads ntawm ib co hom fern yog haum zoo, yog me ntsis fuzzy. Txawm li cas los xij, cov fiddleheads ntawm qee hom (xws li fern rhiab heev) yog cov tshuaj lom me me.

fiddlehead ferns zoo li cas?

Lub fiddlehead yog cov hluas, coiled nplooj ntawm ostrich fern. Lawv muaj npe vim lawv zoo li tus scroll ntawm lub caj dab ntawm lub violin (fiddle)… Ostrich fern fiddleheads txog li ib nti ntawm kab thiab muaj xim av, papery, scale-zoo li npog nyob rau ntawm lub uncoiled fern thiab ib tug du fern qia.

Pom zoo: