Master of Science I (Agrochemical and Pest Management)
Examination: Oct Nov 2016 Semester I (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SP
4
Wednesday
23/11/2016
10:30 AM
to
01:00 P.M
Plant Pathology Weed
Management
C
SCT 1.1
Instructions: Attempt totally five questions.
Question no. 1 is compulsory (section
Attempt any two questions from question no. 2 to 4 (section II).
Attempt any two questions from question no. 5 to 7 (section
III).
Figures to the right indicate full marks.
Total Marks: 70
SECTION 1
Q.1 Rewrite the following sentences by choosing correct alternative. 14
MLOs are plant pathogenic organism.
Cell wall less Eukaryotic
Photosynthetic Both a b
is phanerogamic parasitic plant.
Lotus Cercospora
Albigo Mistletoe
are the green photosynthetic pathogens.
Algae Bacteria
Fungi Viruses
Vein mosaic diseases is generally caused by
Algae Fungi
Bacteria Viruses
Cephaleuros viresense causes disease in Mango.
Wilt Smut
Rust Mildew
seeds are used in mustard udeltration
Echornia crassipes Argimone Mexicana
Cynadon dactylon Commelena begolnesis
Echornia spp. Is type of weed.
Wasteland Aquatic
Coastal None of these
Mosaic of sugarcane is caused by
TMV SMV
MLOs Bacteria
Most of plant viruses show as genetic material
RNA DNA
Both a b All of these
Page 1 of 2
10) Little leaf Brinjal disease caused by
Fungi MLOs
Nematodes Viruses
11) Striga is parasite.
Bud Stem
Root Leaf
12) Weeds that live for a year are called as weeds.
Annual Biennials
Perennials None of these
13) Hand weeding is of weed control.
Biological Physical
Chemical None o these
14) Sigatoka of Banana caused by
Xanthomonas citri Pseudomonas solanecearum
Agrobacterium tumefaciens Mycosphaerello fijiensis
SECTION II
Q.2 Explain:
Fungi as disease causing organism. 07
Histochemical method studying diseases. 07
Q.3 Describe the role of IAA as plant growth regulators. 07
Write casual organism, disease cycle symptoms and control measure of wilt of
Banana.
07
Q.4 Define viruses. Comment up viral diseases. 07
Discuss in general plant quarantine system. 07
SECTION III
Q.5 Classification of plant diseases studied by you. 05
Symptoms of fungal diseases. 05
Dissemination of weeds. 04
Q.6 Explain papaya ring spot. 05
Physical methods of weed control. 05
Plant quarantine regulation. 04
Q.7 Club rots of cabbage. 05
Write a note on MLOs. 05
Agricultural weeds of your region. 04