Kusan kashi 7.0 cikin 100 na fadin duniya yana shafan salinity1, wanda ke nufin sama da hectare miliyan 900 na kasa a duniya suna shafar salinity da salinity2, wanda ya kai kashi 20% na filayen noma da kashi 10% na filayen ban ruwa. ya mamaye rabin yanki kuma yana da babban abun ciki na gishiri3. Kasa mai gishiri babbar matsala ce da ke fuskantar noman Pakistan4,5. A cikin wannan, kusan kadada miliyan 6.3 ko kuma kashi 14% na ƙasar da ake noma ruwa a halin yanzu ana fama da salinity6.
Damuwar kwayoyin cuta na iya canzawashuka girma hormoneamsa, wanda ya haifar da raguwar haɓakar amfanin gona da yawan amfanin ƙasa na ƙarshe7. Lokacin da tsire-tsire suka fallasa ga danniya na gishiri, daidaito tsakanin samar da nau'in oxygen mai aiki (ROS) da kuma tasirin tasirin enzymes antioxidant yana damuwa, yana haifar da tsire-tsire masu fama da damuwa na oxidative8. Tsire-tsire masu yawan adadin enzymes na antioxidant (duka masu haɓakawa da marasa ƙarfi) suna da lafiyayyen juriya ga lalacewar oxidative, kamar su superoxide dismutase (SOD), guaiacol peroxidase (POD), peroxidase-catalase (CAT), ascorbate peroxidase (APOX), da glutathione reductase. (GR) na iya haɓaka haƙurin gishiri na tsire-tsire a ƙarƙashin damuwa na gishiri9. Bugu da ƙari, an ba da rahoton cewa phytohormones suna taka rawa wajen haɓaka girma da ci gaban shuka, tsarin mutuwar kwayar halitta, da rayuwa a ƙarƙashin yanayin canjin yanayi10. Triacontanol cikakken barasa ne na farko wanda shine bangaren shuka epidermal kakin zuma kuma yana da kaddarorin haɓaka tsiro11,12 da kuma abubuwan haɓaka haɓakawa a ƙananan ƙima13. Aikace-aikacen foliar na iya inganta haɓakar yanayin launi na photoynthetic sosai, tarin solute, girma, da samar da kwayoyin halitta a cikin tsire-tsire14,15. Foliar aikace-aikace na triacontanol iya inganta shuka danniya haƙuri16 ta tsara ayyuka na mahara antioxidant enzymes17, da kara osmoprotectant abun ciki na shuka ganye tissues11,18,19 da kuma inganta daukan martani na muhimman ma'adanai K+ da Ca2+, amma ba Na+. 14 Bugu da ƙari, triacontanol yana samar da ƙarin rage sukari, sunadarai masu narkewa, da amino acid a ƙarƙashin yanayin damuwa20,21,22.
Kayan lambu suna da wadataccen sinadarin phytochemicals da sinadirai kuma suna da mahimmanci ga yawancin tafiyar matakai na rayuwa a jikin mutum23. Ana yin barazana ga samar da kayan lambu ta hanyar ƙara gishirin ƙasa, musamman a filayen noma da ake ban ruwa, wanda ke samar da kashi 40.0% na abincin duniya24. Kayan lambu irin su albasa, cucumber, eggplant, barkono da tumatir suna da hankali ga gishiri25, kuma cucumber wani kayan lambu ne mai mahimmanci ga abincin ɗan adam a duniya26. Danniya gishiri yana da tasiri mai mahimmanci akan girman girma na kokwamba, duk da haka, matakan salinity sama da 25 mM yana haifar da raguwar yawan amfanin ƙasa har zuwa 13% 27,28. Mummunan tasirin salinity akan kokwamba yana haifar da raguwar ci gaban shuka da yawan amfanin ƙasa5,29,30. Don haka, makasudin wannan binciken shine a kimanta rawar da triacontanol ke takawa wajen kawar da damuwa gishiri a cikin genotypes na kokwamba da kuma kimanta ikon triacontanol don haɓaka haɓakar shuka da haɓaka aiki. Wannan bayanin kuma yana da mahimmanci don haɓaka dabarun da suka dace da ƙasa saline. Bugu da ƙari, mun ƙaddara canje-canje a cikin ion homeostasis a cikin kokwamba genotypes karkashin damuwa NaCl.
Tasirin triacontanol akan inorganic osmotic regulators a cikin ganyen genotypes cucumber huɗu a ƙarƙashin damuwa na al'ada da gishiri.
Lokacin da aka shuka genotypes kokwamba a ƙarƙashin yanayin damuwa na gishiri, adadin adadin 'ya'yan itace da matsakaicin nauyin 'ya'yan itace ya ragu sosai (Fig. 4). Waɗannan ragi sun fi fitowa fili a cikin Green Green da 20252 genotypes, yayin da Marketmore da Green Long suka riƙe mafi girman adadin 'ya'yan itace da nauyi bayan ƙalubalen salinity. Yin amfani da foliar na triacontanol yana rage mummunan tasirin damuwa na gishiri da ƙara yawan adadin 'ya'yan itace da nauyi a duk nau'in genotypes da aka kimanta. Koyaya, Marketmore da aka yi wa maganin triacontanol ya samar da mafi girman adadin 'ya'yan itace tare da matsakaicin nauyi mafi girma a ƙarƙashin damuwa da yanayin sarrafawa idan aka kwatanta da tsire-tsire marasa magani. Green Summer da 20252 suna da mafi girman abun ciki mai narkewa mai narkewa a cikin 'ya'yan itacen kokwamba kuma sun yi rashin kyau idan aka kwatanta da Marketmore da Green Long genotypes, waɗanda ke da mafi ƙanƙanci duka mai narkewa mai narkewa.
Tasirin triacontanol akan yawan amfanin kokwamba genotypes guda huɗu a ƙarƙashin yanayin damuwa na al'ada da gishiri.
Mafi kyawun maida hankali na triacontanol shine 0.8 mg / l, wanda ya ba da damar rage tasirin kisa na genotypes da aka yi nazari a ƙarƙashin damuwa na gishiri da yanayin rashin damuwa. Koyaya, tasirin triacontanol akan Green-Long da Marketmore ya fi bayyane. Idan akai la'akari da yuwuwar jurewar gishiri na waɗannan genotypes da tasirin triacontanol don rage tasirin danniya na gishiri, yana yiwuwa a ba da shawarar haɓaka waɗannan genotypes akan ƙasa saline tare da fesa foliar tare da triacontanol.
Lokacin aikawa: Nuwamba-27-2024