Blackspot bruising ndichinthu chodetsa nkhawa ngakhale kuti mbatata ikugulitsidwa msika wanji. Kuvulala kwa blackspot kumachitika pamene tuber yakhudzidwa ndi mphamvu yakunja. Mphamvuzi sizingathyole khungu, koma m'malo mwake zimawononga maselo omwe ali pansi. Kuvulala kwa Blackspot kumachitika pamene ma cell owonongeka a phenolic compounds amapangidwa ndi enzyme polyphenol oxidase (PPO), yomwe imapanga quinones (mtundu wapinki), kenako imasandulika kukhala inki yakuda (melanin). Mbatata ikapukutidwa, maselo owonongeka amawoneka ngati malo akuda kapena akuda.
Kukula kwa dera lakuda sikofulumira ndipo kumatenga nthawi kuti muwonekere. Kudetsako sikungasinthe ndipo kumawoneka ngati cholakwika pazatsopano komanso kukonza mbatata. Kukhudza kumafunika kuti pakhale zilonda zakuda. Momwemo, mukangodziwa momwe zinthu zilili kapena zida zomwe zimayambitsa kukhudzidwa, mutha kusintha mwachangu kapena kusintha kuti muchepetse kuthekera kwa mabala a blackspot. Kusenda mbatata kuti muzindikire kuchuluka kwa zizindikiro za blackspot bruise kungakhale chida chachikulu chodziwira madera oti muzitha kuwongolera.
Ingoyesani mbatata m'malo osiyanasiyana pokolola, polowa ndi potuluka, kapena mutanyamula kapena kunyamula. Lamulo lodziwika bwino ndikusunga mbatata pa 70F kwa maola 24- 48 ndiyeno perekani mabala a blackspot. Nthawi zazifupi (maola 6-12) pa kutentha kwakukulu kwa 80-90F zakhala zikugwiritsidwa ntchito kufulumizitsa kukula kwa mabala a blackspot kuti azindikire kale. Malingaliro awa adatengera nthawi ndi kutentha komwe kumafunikira kuti blackspot isinthe kwambiri.
Funso likadali, kodi mungapeze lingaliro labwino la blackspot bruise level (mwachitsanzo. zosakwana mtundu wapamwamba) mu nthawi yaifupi kupanga zipangizo kapena kusamalira zosintha mwamsanga?
Kafukufuku waposachedwa ndi University of Idaho adafuna kudziwa ngati mutha kuyesa mikwingwirima pasanathe maola 24 komanso osagwiritsa ntchito kutentha kwambiri. Cholinga chachikulu chinali kuthana ndi chitukuko cha blackspot bruise pa nthawi ya maola 5 ndikuyerekeza ndi chitukuko cha mikwingwirima pambuyo pa maola 24 ku Russet Burbank ndi Russet Norkotah. Pendulum yamphamvu idayikidwa pamtunda wa mainchesi 7 kapena 12 ndikutulutsa mikwingwirima inayi pa mbatata iliyonse.
Ma tubers adaphwanyidwa, adayikidwa pa 70⁰ F (mwachitsanzo, kutentha kwa chipinda), ndiyeno amawunikidwa ndi kuvulala kwa blackspot pa 1, 2, 3, 4, 5, ndi maola 24 atakhudzidwa. Kusintha kwamtundu, makamaka mtundu wa pinki, kunayamba kukula mkati mwa ola loyamba pambuyo pa kukhudzidwa. Mwachitsanzo, a Russet Burbank adakhudzidwa ndi kutsika kwa mainchesi 12 adawonetsa 50% yamalo omwe adakhudzidwa ndi pinki pambuyo pa ola limodzi.
Kusintha kwa mtundu wa mikwingwirima kuchokera ku pinki kupita ku bulauni kunachitika patatha maola 2 mpaka 3 pambuyo pa kugunda, ndipo kusinthika kwa pinki kunatsika mwachangu pambuyo pa nthawiyo m'mitundu yonse iwiri. Kuchuluka kwambiri ndi kuopsa kwa mikwingwirima yakuda kunachitika pa maola 24; Komabe, 80% ya mikwingwirima yonse imatha kuwoneka pambuyo pa maola atatu kapena asanu kutengera mphamvu ya mphamvu ndi mbewu. Madontho akuda akuda amatha kuwonedwa pasanathe maola 3, koma kusinthika kwakukulu kumatengabe maola 5. Zotsatirazi zikuwonetsa kuthekera kogwiritsa ntchito mikwingwirima yapinki kapena yabulauni/yakuda ngati chizindikiritso choyambirira cha mikwingwirima mkati mwa opareshoni.
Mitundu yocheperako imeneyi ingasonyeze mikwingwirima yatsopano kwambiri ndipo ingathandize kudziŵa kumene kuphulikako. Kuwunika kwa mikwingwirima kumatha kuyamba patangotha maola ochepa mutatenga zitsanzo ndipo sikofunikira kudikirira maola 24. Bokosi lotentha silikufunika, koma diso labwino kuti muwone "mithunzi" yosiyana siyana ya mikwingwirima imafunika makamaka kwa mikwingwirima yomwe imayambitsidwa ndi zotsatira zochepa. Posachedwapa malo omwe amakhudzidwa ndi mikwingwirima amazindikiridwa kusintha kwachangu kungapangidwe kuti zithandizire kuonetsetsa kuti mbatata yabwino kwambiri.