~ 104 ~
Mustaqil tayyorlanish uchun savollar.
1.
Vertitsillioz so‘lishni qaysi zamburug‘ keltirib chiqaradi ?
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2.
Kasallanishning boshlang‘ich belgilari qaysi
rivojlanish fazasida yuzaga
chiqadi ?
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3.
Kasallikning barg va poyadagi ko‘rinishlarini o‘rganing, dog‘ o‘lchamlarini
aniqlang
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4.
Fuzarioz so‘lish kasalligi to‘g‘risida malumot
bering va uning vertsillioz
so‘lishdan farqli tomonlarini ayting.
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Ishni bajarish tartibi :
Topshiriq №1. Fuzarioz va vertitsillioz so‘lish kasallangan to‘qimadan
namuna
tayyorlab,
mikroskopda qarang, kasallik qo‘zg‘otuvchisining
mikroskopik
ko‘rinishini chizing.
Vertitsillioz so‘lish zamburug‘ni toza holda ajratib olish uchun zararlangan bargni,
barg yoki bandini Petri kosachasiga joylashtirib, namlik kerakli darajada saqlansa 2
sutkadan so‘ng zamburug‘ unadi, ular
shoxlangan, har bir shodadan 3 - 4 yuqoriga
yo‘nalgan giflar, iplar mavjud, konidiyasi rangsiz, oval, bir xujayrali.
Fuzarioz so‘lish zamburug‘ni mikroskopda ko’rish uchun ildiz bo’g’zidan qo’ng’ir
toqima olnib oynachaga qo’yib, KON eritmasi ertilib to’qimani
yoriladi igna
~ 105 ~
yordamida va qaynaguncha qizdiriladi namunada to’qimadagi mitseliy ko’rinishi
osonlashadi.
Preparat yirik kattalashtirgichda qaralganda to’qimadan ajralgan zamburug’ tanasi
iplari ko’rinadi . Zamburug’ tananing o’ziga xos tomonlari.
Mitseliyasi yog’on qo’ng’ir rangda ko’p hujayrali tuguncha bo’lakli to’gri burchak
hosil qilib shoxlanadi.
Topshiriq №2. Ikkala xil so‘lishning farqli va o‘xshashlik xususiyatlarini jadvalda
ifodalang.
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