Ke hoʻonui nei ka hana uala ma nā ʻāpana o ʻApelika a me ʻAsia. Ua ʻohiʻohi ʻia he 368 miliona mau tona o ka uala ma ka honua āpau i ka makahiki 2019, ʻoiai he poʻe mai Vietnam a Kenya, ua hana ka Peruvian Andes a hiki i Rwanda i nā ʻano mea kanu o ke aʻa aʻa, e kōkua ana i ka hānai ʻana i kahi 1.3 biliona mau kānaka e hilinaʻi nei iā lākou ma ke ʻano he meaʻai nui.
Ke hana nei nā mea noiʻi e hana i nā ʻano uala-akamai i hiki ke pale aku i ka maʻi a me ke aniau, e like me ka wela a me ka maloʻo, a he mea kēia e hiki ke hoʻopuka i ka wā e hiki mai ana no nā mahiʻai ʻApelika i hakakā mau e loaʻa nā ʻanoʻano maikaʻi.
ʻO Thiago Mendes, kahi mea kanu uala ma Kenya me ka International Potato Center (CIP), ke keʻena nui o Lima, ua ʻōlelo ʻoi aku nei e hoʻomohala ʻia ana nā ʻano ʻoi aku ka ikaika ma o ka ʻokoʻa kūpuna.
ʻO ka papahana Crop Wild Relatives (CWR), kahi papahana he 10 mau makahiki, ke alakaʻi ʻia nei e ka Crop Trust e ʻohiʻohi i nā ʻano mea nui o nā ʻohana hihiu mea kanu, e mālama pono i ka mālama wā lōʻihi, a hoʻoikaika i kā lākou hoʻohana ʻana i ka hoʻoulu ʻana i nā mea kanu hou.
Ua ʻōlelo ʻo ia he nui ka hopena o nā mea kanu i kū i ka maʻi o ke ākea i hala.
ʻO Rwanda ka sub-Saharan ʻApelika ka mea hana nui ʻekolu o ka ʻuala, kahi e paʻa ai ka mālama ʻana i ka meaʻai o ka ʻāina, me ka ʻai makahiki o 125 kilokika i kēlā me kēia kanaka. ʻO nā mea hana ʻē aʻe o ʻApelika me Nigeria, Kenya, Uganda, Angola a me ʻAitiopa.