Qarshi muhandislik-iqtisodiyot instituti texnologiya fakulteti

 
Ishni bajarish tartibi :
Mikroskopda ko’rish uchun namuna tayyorlash odatdagi 
usulda namunani tayyorlab qaralganda bir tartibli shoxlangan konidiya tana ko’zga 
tashlanadi konidiya tanada1/3 nisbatda bo’rtiqlar mavjud bo’ladi. 
Fitoftoroz kasalligini qo’zg’otuvchisiga xos ko’rinishi: 
Fitoftoroz bilan zararlangan to’qima o’zgarishlarini ko’rish uchun tugunakning 
kasallangan va sog’lom qismlaridan namuma tayyorlab qaralganda kasallangan 
to’qimada kraxmal donachalari o’lcham va miqdor jihatdan kamligi ko’rinadi. 

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II. Mustaqil tayyorlanish uchun savollar: 
1.
Kasallikni qaysi guruhga mansub zamburug‘lar keltirib chiqaradi? 
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2.
Kasallik kartoshkaning qaysi organini zararlaydi?
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3.
Kartoshkaning kalmaraz kasalligini (bo‘rtiqli, oddiy) ta’riflang. 
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4.
Oddiy, kukunlanuvchi va qora parsha bilan zararlangan tugunaklarni 
o‘rganing , ulardagi hosil bo‘lgan dog‘larni bir-biridan farqlang.
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5.
Kasallikning yuzaga chiqish va tarqalishi kartoshka rivojlanishining 
qaysi davrida kuzatiladi?
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6.
Nima uchun kasallanish bo‘rtiq deb atalgan? 
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7.
Kasallikning urug‘lik sifatiga tasirini ayting.

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8.
Zamburug‘ning qishlash manbalari to‘g‘risida malumot bering. 
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9.
Kasallik rivojlanishiga tashqi muhitning tasirini ayting. 
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10.Kasallikka qarshi kurashish choralarini ayting. 
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