Ua kaulana ʻo Stevia (Stevia rebaudiana) ma ke ʻano he mea ʻono ʻē aʻe no ka mea aia nā glycosides a hiki i 300 mau manawa ʻoi aku ka momona ma mua o ke kō keʻokeʻo. Ma nā pi'i wela (USDA zones 9-11), he lau nahele ia, akā, 'a'ole e pau ka ho'oilo ma nā wahi me ka ho'oilo ko'iko'i a ma ia mau wahi, mālama 'ia e like me ka makahiki. Ua alakaʻi kekahi hui i alakaʻi ʻia e Kauka David Shew o ke Kulanui o North Carolina State i nā hoʻokolohua ākea ākea e noiʻi i kona hoʻohana ʻana ma ke ʻano he mea kanu ʻē aʻe. ʻO NC State kekahi papahana hānai e hoʻomohala ana i nā cultivars hou
kūpono i nā kūlana kauwela wela a me ka haʻahaʻa e laha nei ma ka Hema US
Loaʻa i nā mea kanu a pau ka pae pH maikaʻi loa ma waho o kahi e hakakā ai nā mea kanu. I ka pae kiʻekiʻe o ka substrate pH pae nā meaʻai e like me Fe, manganese (Mn), zinc (Zn), a me ke keleawe (Cu) liʻiliʻi i ka mea kanu. I ka nui o nā mea kanu me nā koina pH kiʻekiʻe ʻole e ʻike i nā hōʻailona Fe-deficiency. ʻO ka hao he mea ʻole i loko o ka mea kanu a no laila ʻaʻole hiki ke unuhi ʻia mai nā lau haʻahaʻa e hoʻokō i nā mea kanu e pono ai i nā ʻāpana ulu hou o ka mea kanu.
No laila, i ka wā e ho'āʻo ai e hōʻoia i ka hemahema o Fe he mea nui ia e helu i kahi o ka hōʻailona e kōkua i ka hoʻopau ʻana i nā hemahema ʻē aʻe. I kēia hihia o ka stevia, ʻike ʻia nā mea kanu ma luna o ka chlorosis ka melemele a me ka interveinal chlorosis (Fig. 3). Pela, me
ʻO ka hui pū ʻana o kahi hōʻailona, a ʻo ka pH substrate alkaline ke kumu o ka chlorosis interveinal ʻo Fe-deficiency ma muli o ke kiʻekiʻe o ka pae pH substrate.
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