Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for Competitive -paper27

MULTIPLE ques. FOR COMPETITIVE examination
(B.Sc. Agriculture)

The alternate host for pearl millet rust is :
(a) Brinjal (c) Tomato
(b) Mustard (d) Okra

The fungal disease related to the discovery of gibberellins is :
(a) Rice blast (c) Rice false smut
(b) Foolish seedling disease of rice (d) Rice white tip nematode

The direct infection and loss of floral organs as well as seed occurs in :
(a) Karnal bunt of wheat (c) Ergot of pearl millet
(b) Smut of pearl millet (d) All above

Which of the subsequent rust is not caused by fungi ?
(a) Black rust (c)Brown rust
(b) Yellow rust (d) Red rust

Black, yellow and brown rust are generally caused by :
(a) Puccinia spp. (c) Melampsora spp.
(b) Uromyces spp. (d) Phragmidium spp.

A group of diseases caused by basidiomycetes are :
(a) Mildew (c) Rot
(b) Smut (d) Ergot

The typical example of monocyclic diseases is :
(a) Loose smut of wheat (c) Sesame phyllody
(b) Rice blast (d) White rust of mustard

Bacterial rot of wheat ears is also known as :
(a) Spike blight (c) Tundu
(b) Yellow slime disease (d) All above

Brown rust of wheat is caused by :
(a) Puccinia striiformis (c) Puccinia recondita
(b) Puccinia graminis tritici (d) Ustilago tritici

Loose smut of wheat is a :
(a) Soil borne disease (c) Externally seed borne disease

(b) Internally seed borne disease (d) Air borne disease

Grassy shoot disease is caused by :
(a) Bacteria (c) Phytoplasma
(b) Fungi (d) Spiroplasma

The pith of the red rot affected cane emits :
(a) Alcoholic smell (c) Rotten fish like smell
(b) Fried-egg like smell (d) No smell

Ear showing honey dew symptoms is characteristic feature of :
(a) Green ear of bajra (c) Ergot of bajra
(b) Grain smut of bajra (d) All of the above

Which of the subsequent smut of sorghum is not a seed-borne disease?
(a) Grain smut (c) Long smut
(b) Loose smut (d) Head smut

Phyllody is caused by :
(a) Bacteria (c) Virus
(b) Fungi (d) Phytoplasma

The mode of infection in ergot of bajra is :
(a) Shoot infection (c) Local infection of blossom
(b) Seedling infection (d) Systemic infection

Tikka disease of groundnut is caused by :
(a) Fusarium (c) Colletotrichum
(b) Verticillium (d) Cercospora

Which of the subsequent is a pseudo rust ?
(a) Black rust of wheat (c) Yellow rust of wheat
(b) Brown rust of wheat (d) White rust of crucifers

The whip smut of sugarcane is caused by :
(a) Ustilago maydis (c) Ustilago hordei
(b) Ustilago scitaminea (d) None of abobe

Which of the subsequent disease of pigeonpea is caused by virus ?
(a) Sterility mosaic (c) Stem canker
(b) Wilt (d) Leaf spot

Earning:   Approval pending.