The spores which are produced typically by the binucleate mycelium and mainly function as repeating spores for the spread of rust disease in wheat is called
A. Aeciospores
B. Basidiospores
C. Urediospores
D. Ascospores
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Bacterial cell division mainly by
A. Binary fission
B. Fragment
C. Budding
D. None of these
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The process of photophosphorylation was discovered by
A. Calvin
B. Arnon
C. Priestley
D. Warburg
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C4 plants belong to
A. Gramineae
B. Monocots
C. Dicots
D. Both B and C
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The amount of organic matter by weight in organic soil is
A. > 20%
B. > 15%
C. > 10%
D. > 5%
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Fertiliser use is profitable if each rupee spent on fertiliser produces crop worth at least
A. Rs. 1
B. Rs. 5
C. Rs. 10
D. Rs. 2
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Planned geographical distribution of major gene for specific resistance to pathogens for use in varietal development and production is referred to as
A. Gene flow
B. Gene deployment
C. Gene pyramiding
D. Ghost gene
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Stage-III of rust fungi is marked by
A. Pycniospores
B. Pcyniospores
C. Basidiospores
D. Teleospores
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Root growth is particularly affected by
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In rust cycle the cereal host is infected by
A. Urediospores
B. Aeciospores
C. Teliospores
D. Basidiospores
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In flowering plants archesporium gives rise to
A. Wall of sporangium
B. Both wall and sporogenous cells
C. Wall and tapetum
D. Tapetum and sporogenous cells
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Yellow mosaic virus disease of moong spreads by
A. Bemisia tabaci
B. Aphir crassivora
C. Nephotettix viruscens
D. None of these
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The active compound in mineral gypsum and phosphogysum is
A. Calcium sulphate
B. Phosphorus
C. Both A and B
D. Limestone
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Who is regarded as father of Indian Phytopathology?
A. Whattman
B. Stackman
C. Butler
D. Anton de Bary
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Tundu disease (yellow ear rot) of wheat caused by Clavibacter tritici is usually associated with
A. Heterodera avenae
B. Anguina tritici
C. Meloidogyne incognita
D. Pratylenchulus sp.
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Lactic acid fermentation does not produce
A. ATP
B. CO2 and NADH
C. CO2
D. NADH
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The downey mildew disease of pearlmillet is primarily a
A. Seed borne
B. Air borne
C. Soil borne
D. Water borne
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Ug 99 race specific to
A. Bipolaris sorokiniana
B. Magnaporthe grisea
C. Puccinia graminis tritici
D. Cocliobolus sativus
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PR-9 has the property of
A. Thionine
B. Peroxidase
C. Defensin
D. Endoproteinase
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Who described the first plant nematode disease, the seed gall caused by Anguini tritici in 1743 AD
A. R. S. Singh
B. J. F. Dastur
C. Needham
D. N. A. Cobb
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