SECTION B
5.
Answer any FOUR of the following in about 150
words each:
(a)
Bring out five important pests on crucifers,
their nature of damage and management.
(b)
Bring out different pesticide formulations with
a short note on each.
(c)
What are the qualities expected of a successful
parasitoid?
(d)
Explain the advantages and disadvantages of
systemic diseases.
(e)
List out 10 pods borers on pulse with their
systematic position. (Common name, Scientific name, Family, Order and describe
their adults.)
6.
Answer the following in about 150 words each:
Define breeding methods, procedure for the following:
(a)
Mass selection
(b)
Pure line selection
(c)
Pedigree method.
(d)
Backcross method.
7.
Answer the following in about 150 words each:
(a)
What are colloids? Explain their properties.
(b)
Define diffusion. What factors influence the
rate of diffusion?
(c)
Define and differentiate between transpiration
and guttation.
(d)
What are cytokinins and their physiological
effects?
8.
Write short notes on:
(a)
Sundrying of seeds
(b)
Huller scarifier
(c)
Mercurial’s in seed treatment
(d)
Types of seed treatment and precautions observed
in seed treatment. (Condition under which seed must be treated)
No comments:
Post a Comment