Ihe fọrọ nke nta ka ọ bụrụ 7.0% nke ngụkọta ala ụwa na-emetụta salinity1, nke pụtara na ihe karịrị nde hectare 900 n'ụwa na-emetụta ma salinity na sodic salinity2, na-aza 20% nke ala ubi na 10% nke ala mmiri. nwere ọkara mpaghara ma nwee nnukwu ọdịnaya nnu3. Ala salinized bụ nnukwu nsogbu chere ọrụ ugbo Pakistan ihu4,5. N'ime nke a, ihe dị ka nde hectare 6.3 ma ọ bụ 14% nke ala a gbara mmiri ka salinity na-emetụta ugbu a6.
Nchegbu Abiotic nwere ike ịgbanweihe ọkụkụ na-eto etonzaghachi, butere mbelata ihe ọkụkụ na mkpụrụ ikpeazụ7. Mgbe osisi na-ekpughere nrụgide nnu, nguzozi n'etiti mmepụta oxygen na-arụ ọrụ (ROS) na mmetụta nkwụsị nke enzymes antioxidant na-akpaghasị, na-ebute osisi na-ata ahụhụ site na nrụgide oxidative8. Osisi nwere oke nke enzymes antioxidant (ma mejupụtara na nke na-adịghị ike) nwere nguzogide dị mma na mmebi oxidative, dị ka superoxide dismutase (SOD), guaiacol peroxidase (POD), peroxidase-catalase (CAT), ascorbate peroxidase (APOX), na glutathione reductase (GR) nwere ike ịkwalite nrụgide nnu nke osisi. Na mgbakwunye, a kọwawo phytohormones ka ọ na-ekere òkè n'usoro nhazi na uto na mmepe ihe ọkụkụ, usoro ọnwụ cell, na ịlanarị n'okpuru ọnọdụ gburugburu ebe obibi na-agbanwe10. Triacontanol bụ mmanya bụ isi juru eju nke bụ akụkụ nke osisi epidermal wax ma nwee ihe na-akwalite uto osisi11,12 yana ihe na-akwalite uto na obere mkpokọta13. Ngwa foliar nwere ike imeziwanye ọkwa foto synthetic pigmenti, nchịkọta solute, uto na mmepụta biomass na osisi14,15. Ngwa foliar nke triacontanol nwere ike ime ka nrụgide nrụgide osisi dịkwuo mma16 site n'ịhazi ọrụ nke ọtụtụ enzymes antioxidant17, na-amụba ọdịnaya osmoprotectant nke akwụkwọ osisi 11,18,19 na ịkwalite nzaghachi nnabata nke mineral dị mkpa K+ na Ca2+, ma ọ bụghị Na+. 14 Na mgbakwunye, triacontanol na-emepụta ihe na-ebelata shuga, protein soluble, na amino acid n'okpuru ọnọdụ nrụgide20,21,22.
Akwụkwọ nri bara ụba na phytochemicals na nri dị mkpa maka ọtụtụ usoro metabolic na ahụ mmadụ23. A na-eyi mmepụta akwụkwọ nri egwu site na ịba ụba salinity nke ala, ọkachasị n'ala ndị a na-agba mmiri mmiri, nke na-emepụta 40.0% nke nri ụwa24. Akwụkwọ nri dịka yabasị, kukumba, eggplant, ose na tomato na-enwe mmetụta maka salinity25, kukumba bụkwa ihe oriri dị mkpa maka nri mmadụ na-eri n'ụwa nile26. Nchegbu nnu nwere mmetụta dị ukwuu na uto kukumba, Otú ọ dị, ọkwa salinity dị elu karịa 25 mM na-eme ka mbelata mkpụrụ ruo 13% 27,28. Mmetụta dị njọ nke salinity na kukumba na-ebute mbelata uto osisi na mkpụrụ 5,29,30. Ya mere, ebumnuche nke ọmụmụ a bụ iji nyochaa ọrụ triacontanol na ibelata nrụgide nnu na cucumber genotypes na iji nyochaa ikike triacontanol iji kwalite uto na mmepụta ihe ọkụkụ. Ozi a dịkwa oke mkpa maka ịmepụta atụmatụ dabara adaba maka ala saline. Na mgbakwunye, anyị kpebiri mgbanwe na ion homeostasis na cucumber genotypes n'okpuru nrụgide NaCl.
Mmetụta nke triacontanol na inorganic osmotic regulators na epupụta nke anọ kukumba genotypes n'okpuru nkịtị na nnu nrụgide.
Mgbe a na-akụ kukumba genotypes n'okpuru ọnọdụ nrụgide nnu, ọnụ ọgụgụ mkpụrụ osisi na nkezi mkpụrụ osisi na-ebelata nke ukwuu (Fig 4). Mbelata ndị a na-apụta karịa na Summer Green na 20252 genotypes, ebe Marketmore na Green Long jigidere ọnụ ọgụgụ mkpụrụ kacha elu na ịdị arọ mgbe mgba salinity gasịrị. Ngwa nke triacontanol foliar na-ebelata mmetụta ọjọọ nke nrụgide nnu na ụbara ọnụ ọgụgụ mkpụrụ osisi na ịdị arọ na genotypes niile enyochara. Otú ọ dị, Marketmore ọgwụgwọ triacontanol mepụtara ọnụ ọgụgụ mkpụrụ kachasị elu nke nwere oke arọ dị elu n'okpuru ọnọdụ nrụgide na nke a na-achịkwa ma e jiri ya tụnyere osisi anaghị agwọ ya. Summer Green na 20252 nwere ọdịnaya siri ike soluble kachasị elu na mkpụrụ osisi kukumba ma rụọ ọrụ nke ọma ma e jiri ya tụnyere Marketmore na Green Long genotypes, nke nwere mkpokọta mkpokọta soluble kacha ala.
Mmetụta nke triacontanol na mkpụrụ nke cucumber genotypes anọ n'okpuru ọnọdụ nrụgide nnu na nkịtị.
Ihe kachasị mma nke triacontanol bụ 0.8 mg / l, nke nyere ohere ibelata mmetụta na-egbu egbu nke genotypes a na-amụ n'okpuru nrụgide nnu na ọnọdụ enweghị nchekasị. Agbanyeghị, mmetụta nke triacontanol na Green-Long na Marketmore pụtara ìhè karịa. N'ịtụle ikike nnabata nnu nke genotypes ndị a na ịdị irè nke triacontanol n'ibelata mmetụta nke nrụgide nnu, ọ ga-ekwe omume ịkwado ịmalite genotypes ndị a na ala saline na foliar spraying na triacontanol.
Oge nzipu: Nov-27-2024