Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture q - Question Paper

MULTIPLE QUESTIONS FOR COMPETITIVE EXAM

(B.Sc. Agriculture)

Generally powdery mildew fungi produced sexual fruiting body is known as

(A)Apothecium (B)Perithecium (C)Clestothecium (D)Pseudothecium

Which of the following rust is the earliest to appear on wheat in India

(A) Black rust(B) Yellow rust(C)Brown rust (D)None of above

Coenocytic mycelium is observed in the

(A) Higher fungi (B) Lower fungi (C)Imperfect fungi (D)None of above

A cabbage disease which is known to be more severe in acidic soils is

(A)Club root (B)yellows(C) Black rot(D) Damping off

Viruses which can killed the bacteria are known as

(A)Virion (B) Antibodies(C)Bacteriophase (D)Viriods

Zoospores of Oomycetes fungi are

(A) Biflagellate(B)Uniflagellate (C) Tinsel type(D)Whiplash type

Resting spore of rust fungi is

(A)Uredospore (B)Teliospore (C)Basidiospore (D)Ascospore

The first scientist who in 1929 studied fungi and saw their spores (A) Anton de Bary (B) Leeuwenhoek(C)P.A.Micheli (D)Prevost

Downy mildew disease can be effectively managed by spraying of

(A)Metalaxil MZ (B)Thiophanate methyl (C)Mancozeb (D)Carbendazim

Alternate host of pearl millet rust is

(A) Barberry(B)Brinjal (C)Chaenopodium (D)Glycine max

Yellow vein mosaic of okra is transmitted through

(A) Aphid(B) Thrips(C)Mites (D)White fly

Root rot of castor is favoured by

(A) High soil moisture (B) Low soil moisture

(C) High humidity (D) Low temperature

A five kingdom system of classification of living beings was suggested by

(A)Linneaus (B) Persoon(C)Whittakar (D)Haeckel

Bud necrosis of groundnut is caused by

(A)Phytoplasma (B)Viroid (C) Spiroplasma (D) Virus

Indian Phytopathological society was started by

(A)B.B.mundkur (B) K.C.mehta(C)J.F.dastur (D)G.S.kulkarni

Viriods spread from cell to cell by

(A)Movement protein (B) Plasmodesmata

(C)Helper virus (D) Cell division

Yellow vein mosaic of okra is caused by

(A)Gemini virus (B)Potyvirus(C)Potexvirus (D)Comovirus

Express of resistance in plant disease reaction from susceptible appropriate treatment is called

(A)Functional resistance (B) Induced resistance

(C)Structural resistance (D) Synthesis resistance

Plant quarantine method is useful only when

(A) The pathogen is seed transmitted

(B) The pathogen is wind borne

(C) The pathogen is soil inhabitant

(D) The pathogen is vector transmissible

Green ear disease of bajara is also known as

A)    Bunchy top(B) Witches broom(C) Downy mildew (D)Phyllody