I loko o nā makahiki he ʻumi i hala iho nei, ua loaʻa i nā kukui LED ka hoihoi nui ma ke ʻano he kumu kukui hoʻonui i ka ikehu i loko o ka horticulture greenhouse e hiki ke loli wikiwiki i ka ikaika a me ka spectral composition. ʻAʻole pili wale ka haku mele ʻana i ka physiology o nā mea kanu akā hiki ke hoʻopilikia i ka biology o nā pathogens, pests, a me ko lākou mau ʻenemi maoli, ma ke ʻano pololei a me ka ʻole ma o ka hopena i ke kūʻē ʻana i nā mea kanu.
ʻO kahi noiʻi hou e ka Business Unit Greenhouse Horticulture, Wageningen University & Research, e noiʻi ana i nā hopena o ka spectrum māmā e pili ana i ke ʻano o ka lā i ka ulu a me ka ulu ʻana o Solanum melongena. Ua pili kēia mau hopena i nā hopena spectral i ka hoʻokumu ʻia ʻana o nā heluna o ka mite predatory Amblyseius swirskii a me ke kūpaʻa ʻana o nā mea kanu i ka biotrophic fungus powdery mildew, ka necrotrophic fungus botrytis, a me ka herbivorous arthropod Western flower thrips.
Ua aʻo ʻia nā hopena o ka lākiō ʻulaʻula / ʻulaʻula i hoʻemi ʻia (R: FR) ma lalo o ʻelua lākiō o ka ʻulaʻula a me ke kukui uliuli. Ua hoʻolako pū ʻia ke kukui ʻulaʻula lōʻihi i ka photosynthetic photon flux density (PPFD) a i ʻole PPFD i pani ʻia, me ka mālama ʻana i ka nui o ka photon flux density (PFD). Ua ho'āʻo ʻia nā hopena o ke kukui keʻokeʻo a i ʻole nā kukui UV-B hou aʻe i ke kūpaʻa o ka mea kanu, i hoʻohālikelike ʻia i ka kuhikuhi (5% uliuli, 5% ʻōmaʻomaʻo, a me 90% kukui ʻulaʻula). Ua hoʻonui ʻia ka biomass kanu i ka wā kanu i ka wā i hoʻolako ʻia ai ke kukui ʻulaʻula lōʻihi. Ua hoʻonui ʻia ka lōʻihi o ke kumu me ka ʻulaʻula lōʻihi, me ka ʻole o ka PPFD a me ka pākēneka o ke kukui uliuli.
I ka pae generative, ʻoi aku ka kiʻekiʻe o ka biomass pana a me nā paona hou o nā hua ma lalo o ke kukui ʻulaʻula ʻē aʻe, a ukali ʻia e nā lapaʻau kahi i hoʻololi ʻia ai ka PPFD. ʻO ke kukui ʻulaʻula lōʻihi i hoʻonui i ka biomass partitioning i loko o nā hua, me ka lilo o nā lau. ʻAʻohe ʻokoʻa o ka ulu ʻana o ka heluna kanaka o A. swirskii mites ma waena o nā lāʻau māmā, ʻaʻole hoʻi i loaʻa ka hopena o ka mālama māmā i ka hoʻohele kūʻokoʻa o kēia mau mite predatory i loko o nā mea kanu.
ʻO nā lāʻau lapaʻau me ke kukui ʻulaʻula lōʻihi i hoʻemi i ka nui o ka maʻi o ka pauka, akā hoʻonui i ka maʻi botrytis. ʻO kēia mau ʻokoʻa ma muli paha o ka pale ʻana o nā mea kanu e kūʻē i kēia mau pathogens e ulu mai ana mai ʻelua ala hoʻoponopono ʻokoʻa. Hōʻike kēia mau hopena i nā hopena maikaʻi o nā haku mele spectral i hoʻololi ʻia i nā pane physiological i uku ʻia e ka piʻi ʻana i nā pathogens fungal, e hāʻawi ana i ka hiʻohiʻona no ka horticulture hale ʻōmaʻomaʻo hoʻomau.
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ʻO Anja Dieleman J, Marjolein Kruidhof H, Weerheim K a me Leiss K (2021) ʻO nā hoʻolālā kukui LED e hoʻopili i ka Physiology a me ka Resilience i nā Pathogens a me nā Pests i ka Eggplant (Solanum melongena L.). Imua. Mea kanu Sci. 11:610046. doi: 10.3389/fpls.2020.610046