Blackspot bruising yog ib qho kev txhawj xeeb zoo txawm li cas los xij ntawm kev lag luam ntawm cov qos yaj ywm yog destined. Ib qho nqaij tawv nqaij tawv tshwm sim thaum lub tuber raug cuam tshuam los ntawm lub zog sab nraud. Qhov kev quab yuam no yuav tsis ua rau daim tawv nqaij, tab sis ua rau cov hlwb hauv qab. Blackspot bruise yog tsim thaum lub hlwb puas 'phenolic tebchaw yog oxidized los ntawm enzyme polyphenol oxidase (PPO), uas nyob rau hauv lem tsim quinones (liab xim), thiab ces transforms mus rau hauv tsaus pigments (melanin). Tom qab cov qos yaj ywm tau tev lawm, cov hlwb puas tshwm sim raws li qhov tsaus ntuj lossis xim dub.
Kev loj hlob ntawm cheeb tsam blackened tsis yog tam sim ntawd thiab yuav siv sij hawm kom pom kev tshwm sim. Lub darkening yog irreversible thiab suav hais tias yog ib tug tsis xws luag rau tshiab thiab ua qos yaj ywm. Ib qho kev cuam tshuam yog xav tau los ua kom pom qhov tsaus ntuj. Qhov zoo tshaj plaws, sai dua koj paub txog cov xwm txheej lossis cov cuab yeej ua rau muaj kev cuam tshuam, sai dua koj tuaj yeem hloov kho lossis hloov kho kom txo tau qhov muaj peev xwm ua rau qhov tawv nqaij tawv. Peeling qos yaj ywm los txheeb xyuas qhov kev faib ua feem nrog cov tsos mob ntawm blackspot bruise tuaj yeem yog ib qho cuab yeej zoo los txheeb xyuas thaj chaw los kho kev tswj qhov nqaij.
Tsuas yog coj cov qos yaj ywm ntawm ntau qhov chaw thaum sau, tuav hauv thiab tawm ntawm qhov chaw cia, lossis tom qab ntim lossis thauj. Ib txoj cai dav dav ntawm tus ntiv tes xoo yog tuav cov qos yaj ywm ntawm 70F rau 24- 48 xuab moos thiab tom qab ntawd ntsuas qhov tawv nqaij tawv. Lub sijhawm luv luv (6-12 teev) ntawm qhov kub siab dua ntawm 80-90F tau siv los txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws, nws muaj qhov kub thiab txias ntawm XNUMX-XNUMXF. Cov lus pom zoo no tau ua raws li lub sijhawm thiab qhov kub thiab txias xav tau rau qhov siab tshaj plaws blackspot discoloration.
Cov lus nug tseem tshuav, koj puas tuaj yeem tau txais ib lub tswv yim zoo ntawm blackspot bruise theem (xws li tsawg tshaj li qhov ntau tshaj plaws xim) nyob rau hauv lub sij hawm luv luv los ua cov khoom siv los yog kev hloov kho sai dua?
Ib txoj kev tshawb fawb tsis ntev los no los ntawm University of Idaho tau teeb tsa los txiav txim siab seb koj tuaj yeem ntsuas qhov nqaij tawv sai dua 24 teev thiab tsis siv qhov kub thiab txias. Lub hom phiaj tseem ceeb yog los daws qhov kev txhim kho ntawm blackspot bruise nyob rau lub sijhawm 5 teev thiab piv rau kev txhim kho bruise tom qab 24-teev hauv Russet Burbank thiab Russet Norkotah. Ib qho kev cuam tshuam pendulum tau teeb tsa ntawm qhov siab ntawm 7 lossis 12 ntiv tes thiab xa 4 qhov nqaij tawv nqaij ntawm txhua tus qos yaj ywm.
Tubers raug thab, muab tso rau ntawm 70⁰ F (xws li chav tsev kub), thiab tom qab ntawd pom qhov muag pom kev pom qhov muag pom ntawm 1, 2, 3, 4, 5, thiab 24 teev tom qab kev cuam tshuam. Discoloration, feem ntau xim liab, pib tsim nyob rau hauv thawj teev tom qab kev cuam tshuam. Piv txwv li, Russet Burbank cuam tshuam nrog 12-nti nco tau pom 50% ntawm thaj chaw cuam tshuam cuam tshuam xim liab tom qab 1 teev.
Qhov kev hloov ntawm cov xim daj los ntawm liab mus rau xim av feem ntau tshwm sim tom qab 2 mus rau 3 teev tom qab kev cuam tshuam, thiab cov xim liab liab poob sai sai tom qab lub sijhawm ntawd hauv ob qho tib si cultivars. Qhov tshwm sim ntau tshaj plaws thiab qhov mob ntawm qhov chaw ua pob khaus tshwm sim ntawm 24 teev; Txawm li cas los xij, ntau dua 80% ntawm tag nrho cov bruises tuaj yeem pom tom qab 3 mus rau 5 teev nyob ntawm qhov quab yuam ntawm kev cuam tshuam thiab cultivar. Darkened blackspots tuaj yeem pom nyob rau hauv tsawg dua 5 teev, tab sis qhov siab tshaj plaws ntawm kev hloov xim tseem yuav siv sijhawm ntev dua 24 teev. Cov txiaj ntsig no qhia txog kev muaj peev xwm siv cov xim liab lossis xim av / xim dub bruises ua qhov taw qhia thaum ntxov rau kev ntsuam xyuas qhov tawv nqaij hauv kev ua haujlwm.
Cov xim subdued no tuaj yeem qhia qhov nqaij ntshiv tshiab thiab tuaj yeem tso cai rau kev txheeb xyuas qhov chaw ntawm qhov nqaij. Kev ntsuam xyuas Bruise tuaj yeem pib li ntawm ob peb teev tom qab kuaj thiab tsis tas yuav tos 24 teev. Lub thawv kub tsis tas yuav tsum tau, tab sis lub qhov muag zoo kom pom ntau yam "ntxhais" ntawm qhov tawv nqaij yog qhov xav tau tshwj xeeb tshaj yog rau cov nqaij ntshiv los ntawm kev cuam tshuam qis. Qhov chaw tawg sai sai tau pom tias qhov kev hloov pauv sai tuaj yeem ua los pab ua kom cov qos yaj ywm zoo tshaj plaws.