Hoo e ka bang 7.0% ea sebaka sohle sa lefats'e se angoa ke letsoai1, ho bolelang hore lihekthere tse fetang limilione tse 900 tsa naha lefatšeng li angoa ke letsoai le letsoai la sodic2, tse etsang 20% ea naha e lengoang le 10% ea naha e nosetsoang. e nka halofo ea sebaka seo 'me e na le letsoai le lengata3. Mobu o nang le letsoai ke bothata bo boholo bo tobaneng le temo ea Pakistan4,5. Ho sena, lihekthere tse ka bang limilione tse 6.3 kapa 14% ea naha e nosetsoang hona joale li angoa ke letsoai6.
Khatello ea maikutlo ea Abiotic e ka fetohahormone ea kholo ea limelakarabelo, e leng se fellang ka ho fokotseha ha kgolo ya dijalo le chai ya ho qetela7. Ha dimela di pepesehela kgatello ya letswai, tekatekano pakeng tsa tlhahiso ya di-reactive oxygen species (ROS) le phello ya ho tima ha di-enzyme tsa antioxidant e a sitiswa, e leng se fellang ka hore dimela di be le kgatello ya oxidative8. Dimela tse nang le di-enzyme tse ngata tsa antioxidant (tse kopanyang le tse ka hare) di na le kganyetso e ntle ya tshenyo ya oxidative, jwalo ka superoxide dismutase (SOD), guaiacol peroxidase (POD), peroxidase-catalase (CAT), ascorbate peroxidase (APOX), le glutathione reductase (GR) di ka ntlafatsa mamello ya letswai ya dimela tse tlasa kgatello ya letswai9. Ho phaella moo, di-phytohormone di tlalehilwe di bapala karolo ya taolo kgolong le ntshetsopeleng ya dimela, lefung la sele le hlophisitsweng, le ho phela tlasa maemo a fetohang a tikoloho10. Triacontanol ke jwala bo matla bo kgotsheng boo e leng karolo ya boka ba epidermal ba dimela mme bo na le thepa e kgothaletsang kgolo ya dimela11,12 hammoho le thepa e kgothaletsang kgolo maemong a tlase13. Tšebeliso ea makhasi e ka ntlafatsa haholo boemo ba 'mala oa photosynthetic pigment, pokello ea solute, kholo le tlhahiso ea biomass limela14,15. Tšebeliso ea makhasi ea triacontanol e ka ntlafatsa mamello ea khatello ea limela16 ka ho laola ts'ebetso ea li-enzyme tse ngata tsa antioxidant17, ho eketsa litaba tsa osmoprotectant tsa lisele tsa makhasi a limela11,18,19 le ho ntlafatsa karabelo ea ho monya liminerale tsa bohlokoa K+ le Ca2+, empa eseng Na+. 14 Ho phaella moo, triacontanol e hlahisa tsoekere e fokotsang haholo, liprotheine tse qhibilihang le li-amino acid tlas'a maemo a khatello20,21,22.
Meroho e ruile ka dikhemikhale tsa phytochemical le dikotla mme e bohlokwa bakeng sa ditsamaiso tse ngata tsa metabolism mmeleng wa motho23. Tlhahiso ya meroho e kotsing ka lebaka la ho eketseha ha letsoai mobung, haholoholo masimong a temo a nosetswang, a hlahisang 40.0% ya dijo tsa lefatshe24. Dijalo tsa meroho tse kang eiee, likomkomere, eggplant, pepere le tamati di na le kutloelo-bohloko ho letsoai25, mme likomkomere ke meroho ya bohlokwa bakeng sa phepo ya batho lefatsheng ka bophara26. Kgatelelo ya letswai e na le phello e kgolo sekgahla sa kgolo ya likomkomere, leha ho le jwalo, maemo a letswai a ka hodimo ho 25 mM a fella ka phokotso ya chai ho fihla ho 13%27,28. Ditlamorao tse mpe tsa letswai ho likomkomere di fella ka ho fokotseha ha kgolo ya dimela le chai5,29,30. Ka hona, sepheo sa thuto ena e ne e le ho lekola karolo ya triacontanol ho fokotseng kgatello ya letswai ho di-genotype tsa likomkomere le ho lekola bokgoni ba triacontanol ba ho kgothaletsa kgolo le tlhahiso ya dimela. Tlhahisoleseding ena e boetse e bohlokwa bakeng sa ho ntshetsa pele mawa a loketseng mobu wa letswai. Ho phaella moo, re fumane diphetoho ho homeostasis ya ion ho di-genotype tsa dikomkomere tlasa kgatello ya NaCl.
Tšusumetso ea triacontanol ho balaoli ba osmotic ba inorganic makhasing a genotype tse 'ne tsa likomkomere tlas'a khatello e tloaelehileng le letsoai.
Ha mefuta ya di-genotype tsa dikomkomere e ne e jalwa tlasa maemo a kgatello ya letswai, palo yohle ya ditholwana le boima ba ditholwana bo tloaelehileng di ile tsa fokotseha haholo (Setshwantsho sa 4). Diphokotso tsena di ile tsa hlahella haholo ho mefuta ya di-genotype tsa Summer Green le 20252, ha Marketmore le Green Long di ile tsa boloka palo e hodimo ya ditholwana le boima kamora phephetso ya letsoai. Tshebediso ya dimela ya triacontanol e ile ya fokotsa ditlamorao tse mpe tsa kgatello ya letswai mme ya eketsa palo le boima ba ditholwana ho mefuta yohle ya di-genotype tse hlahlobilweng. Leha ho le jwalo, Marketmore e phekotsweng ka triacontanol e hlahisitse palo e hodimo ya ditholwana ka boima bo hodimo ba karolelano tlasa maemo a kgatello le a laolwang ha ho bapiswa le dimela tse sa phekolwang. Summer Green le 20252 di ne di na le dikahare tse hodimo tsa di-solid tse qhibilihang ka ho fetisisa ditholwaneng tsa dikomkomere mme di sebeditse hampe ha di bapiswa le mefuta ya di-genotype tsa Marketmore le Green Long, tse neng di na le dikahare tse tlase ka ho fetisisa tsa di-solid tse qhibilihang ka ho feletseng.
Tšusumetso ea triacontanol tlhahisong ea mefuta e mene ea li-genotype tsa likomkomere tlas'a maemo a tloaelehileng le a khatello ea letsoai.
Khatello e ntle ka ho fetisisa ea triacontanol e ne e le 0.8 mg/l, e ileng ea lumella ho fokotsa litlamorao tse bolaeang tsa genotypes tse ithutiloeng tlas'a khatello ea letsoai le maemo a seng khatello ea maikutlo. Leha ho le joalo, phello ea triacontanol ho Green-Long le Marketmore e ne e totobetse haholoanyane. Ha ho nahanoa ka bokhoni ba ho mamella letsoai ba genotypes tsena le katleho ea triacontanol ho fokotseng liphello tsa khatello ea letsoai, hoa khoneha ho khothaletsa ho lema genotypes tsena mobung o letsoai ka ho fafatsa ka makhasi ka triacontanol.
Nako ea poso: Pulungoana-27-2024