Ihe fọrọ nke nta ka ọ bụrụ 7.0% nke ala niile dị n'ụwa na-emetụta nnu1, nke pụtara na ihe karịrị nde hekta 900 nke ala n'ụwa na-emetụta nnu na nnu sodic2, nke na-agụnye 20% nke ala a kụrụ akụ na 10% nke ala a gbara mmiri. O nwere ọkara mpaghara ahụ ma nwee nnu dị elu3. Ala e tinyere nnu n'ime ala bụ nnukwu nsogbu na-eche ọrụ ugbo Pakistan ihu4,5. N'ime nke a, ihe dị ka nde hekta 6.3 ma ọ bụ 14% nke ala e tinyere mmiri n'ime ala na-emetụta nnu ugbu a6.
Nsogbu abiotic nwere ike ịgbanwehomonụ uto osisimmeghachi omume, na-ebute mbelata uto ihe ubi na mkpụrụ ikpeazụ7. Mgbe osisi na-enweta nrụgide nnu, nguzozi dị n'etiti mmepụta oxygen species (ROS) na mmetụta imenyụ nke enzymes antioxidant na-emebi, na-ebute osisi na-ata ahụhụ site na nrụgide oxidative8. Osisi nwere nnukwu enzymes antioxidant (ma ndị mejupụtara na ndị na-adịghị agbanwe agbanwe) nwere ike iguzogide mmebi oxidative dị mma, dị ka superoxide dismutase (SOD), guaiacol peroxidase (POD), peroxidase-catalase (CAT), ascorbate peroxidase (APOX), na glutathione reductase (GR) nwere ike ime ka nnu dịkwuo mma na osisi n'okpuru nrụgide nnu9. Na mgbakwunye, akọpụtala na phytohormones na-arụ ọrụ nchịkwa na uto na mmepe osisi, ọnwụ mkpụrụ ndụ emebere, na ndụ n'okpuru ọnọdụ gburugburu ebe obibi na-agbanwe agbanwe10. Triacontanol bụ mmanya bụ isi jupụtara nke bụ akụkụ nke wax epidermal osisi ma nwee ihe ndị na-akwalite uto osisi11,12 yana ihe ndị na-akwalite uto na obere mkpokọta13. Ntinye akwụkwọ nwere ike ime ka ọnọdụ agba fotosynthetic dịkwuo mma, nchịkọta solute, uto, na mmepụta biomass n'ime osisi14,15. Ntinye akwụkwọ triacontanol nwere ike ime ka ntachi obi osisi dịkwuo mma16 site n'ịchịkwa ọrụ nke ọtụtụ enzymes antioxidant17, ịbawanye ọdịnaya osmoprotectant nke anụ ahụ akwụkwọ osisi11,18,19 ma melite nzaghachi nnabata nke mineral dị mkpa K+ na Ca2+, mana ọ bụghị Na+. 14 Na mgbakwunye, triacontanol na-emepụta shuga ndị na-ebelata, protein ndị na-agbaze agbaze, na amino acid n'okpuru ọnọdụ nrụgide20,21,22.
Akwụkwọ nri bara ụba na phytochemicals na ihe ndị na-edozi ahụ ma dị mkpa maka ọtụtụ usoro metabolic n'ahụ mmadụ23. Mmepụta akwụkwọ nri na-eyi egwu site na mmụba nnu ala, ọkachasị n'ala ugbo a na-agba mmiri, nke na-emepụta 40.0% nke nri ụwa24. Ihe ọkụkụ akwụkwọ nri dị ka yabasị, kukumba, eggplant, ose na tomato na-enwe mmetụta nnu25, kukumba bụkwa akwụkwọ nri dị mkpa maka nri mmadụ n'ụwa niile26. Nrụgide nnu nwere mmetụta dị ukwuu na uto kukumba, agbanyeghị, ọkwa nnu karịrị 25 mM na-ebute mbelata mkpụrụ ruo 13%27,28. Mmetụta ọjọọ nke nnu na kukumba na-ebute mbelata uto osisi na mkpụrụ5,29,30. Ya mere, ebumnuche nke ọmụmụ a bụ inyocha ọrụ nke triacontanol na ibelata nrụgide nnu na mkpụrụ ndụ ihe nketa kukumba na ịtụle ikike nke triacontanol iji kwalite uto na mmepụta ihe. Ozi a dịkwa oke mkpa maka ịmepụta atụmatụ dabara adaba maka ala nnu. Tinyere nke a, anyị chọpụtara mgbanwe dị na homeostasis ion na genotypes nke kukumba n'okpuru nrụgide NaCl.
Mmetụta nke triacontanol na ndị na-achịkwa osmotic inorganic na akwụkwọ nke ụdị mkpụrụ ndụ kukumba anọ n'okpuru nrụgide nkịtị na nnu.
Mgbe a kụrụ mkpụrụ osisi kukumba n'okpuru ọnọdụ nrụgide nnu, ọnụọgụ mkpụrụ osisi na nkezi ibu mkpụrụ osisi belatara nke ukwuu (Foto 4). Mbelata ndị a pụtara ìhè karịa na mkpụrụ osisi Summer Green na 20252, ebe Marketmore na Green Long nọgidere na-enwe ọnụọgụ mkpụrụ na ibu kachasị elu mgbe nsogbu nnu gasịrị. Ngwakọta nke triacontanol belatara mmetụta ọjọọ nke nrụgide nnu ma mụbaa ọnụọgụ mkpụrụ na ibu na mkpụrụ osisi niile a tụlere. Agbanyeghị, Marketmore nke a gwọchara triacontanol mepụtara ọnụọgụ mkpụrụ osisi kachasị elu nwere oke ibu dị elu n'okpuru ọnọdụ nrụgide na njikwa ma e jiri ya tụnyere osisi ndị a na-anaghị agwọ. Summer Green na 20252 nwere ọdịnaya siri ike kachasị elu na-agbaze na mkpụrụ osisi kukumba ma rụọ ọrụ nke ọma ma e jiri ya tụnyere mkpụrụ osisi Marketmore na Green Long, nke nwere mkpokọta siri ike kachasị ala na-agbaze.
Mmetụta nke triacontanol na mmepụta nke mkpụrụ ndụ ihe nketa kukumba anọ n'okpuru ọnọdụ nkịtị na nrụgide nnu.
Ngụkọta triacontanol kacha mma bụ 0.8 mg/l, nke nyere aka belata mmetụta ọjọọ nke genotypes a mụrụ n'okpuru nrụgide nnu na ọnọdụ enweghị nrụgide. Agbanyeghị, mmetụta nke triacontanol na Green-Long na Marketmore pụtara ìhè karịa. N'ịtụle ikike nnabata nnu nke genotypes ndị a na irè nke triacontanol n'ibelata mmetụta nke nrụgide nnu, ọ ga-ekwe omume ịkwado ịkụ mkpụrụ genotypes ndị a na ala nnu site na iji ọgwụ fesa triacontanol.
Oge ozi: Nọvemba-27-2024