LDE (other) • 2021 • Paper-I
Quantam of leaf required for late age silkworm rearing is about:
A)
50%
B)
75%
C)
84%
D)
94%
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
The destruction of disease causing germs is known as:
A)
disinfectant
B)
disinfection
C)
fumigation
D)
bed cleaning
Disinfection is the destruction/removal of disease-causing microorganisms.
LDE (other) • 2021 • Paper-I
Any biological material or process used for adding essential nutrient content to the soil is called:
A)
Chemical fertilizers
B)
Biofertilizers
C)
Organic Manure
D)
Manure
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
Bombyx mori undergoes complete metamorphosis and has __________ stages in its life cycle:
A)
2
B)
3
C)
4
D)
5
The life cycle has four stages: egg, larva, pupa and adult.
LDE (other) • 2021 • Paper-I
__________ is a technique of joining the parts of two plants in such a way that they unite and grow as one plant:
A)
Grafting
B)
Layering
C)
Budding
D)
Cutting
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
After planting, the saplings need to be cut at __________ above the ground level within a week:
A)
5 – 10 cm
B)
10 – 15 cm
C)
20 – 25 cm
D)
25 – 30 cm
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
Bivoltine races of mulberry silkworm generally produce:
A)
greenish cocoon
B)
golden yellow cocoon
C)
white cocoon
D)
pale yellow cocoon
This is a standard Bombyx mori life-cycle or morphology fact.
LDE (other) • 2021 • Paper-I
In diapausing races, the colour of the eggs changes to __________ when they enter into diapause:
A)
black colour
B)
red colour
C)
dark green colour
D)
deep brown colour
This is a standard Bombyx mori life-cycle or morphology fact.
LDE (other) • 2021 • Paper-I
Mulberry cuttings should be selected from well established garden of:
A)
2 – 3 months
B)
5 – 6 months
C)
8 – 12 months
D)
1 -2 years
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
__________ is the most popular method of brushing in India:
A)
Husk method
B)
Net method
C)
Cloth method
D)
Feather method
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
When __________ of the worms settle for moult, feeding should be stopped.
A)
30 – 40%
B)
50 – 60%
C)
70 – 80%
D)
90 – 95%
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
Cocoons usually harvested on the __________ after mounting:
A)
1st day
B)
2nd day
C)
4th day
D)
6th day
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
When the scion is inserted into the stem portion, it is called:
A)
Crown grafting
B)
Whip grafting
C)
Shoot grafting
D)
Wedge grafting
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
Young age silkworm require:
A)
matured leaves
B)
bottom leaves
C)
thick leaves
D)
tender leaves
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
Matured silkworm can complete cocooning in about:
A)
2 days
B)
4 days
C)
5 days
D)
6 days
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
Mulberry is mainly planted in the month of:
A)
March – April
B)
April – June
C)
July – August
D)
September – November
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
During the late age period, the silkworm body weight increase by:
A)
20 times
B)
25 times
C)
30 times
D)
35 times
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
The second instar generally lasts for __________:
A)
1 day
B)
1 – 1.5 days
C)
2 – 2.5 days
D)
3 – 3.5 days
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
__________ is made by the decomposition of grass or straw or other domestic and agricultural wastes in pits under anaerobic conditions:
A)
Compost
B)
FYM
C)
Green Manure
D)
Biogas slurry
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
Required relative humidity during the 5th instar:
A)
70%
B)
75%
C)
80%
D)
85%
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
__________ races produce only one generation per year:
A)
Univoltine
B)
Bivoltine
C)
Multivoltine
D)
None of these
Univoltine races produce one generation (brood) per year.
LDE (other) • 2021 • Paper-I
Providing ideal environmental conditions to the eggs for healthy growth and development of the embryo is __________:
A)
Incubation
B)
Brushing
C)
Black boxing
D)
Procurement of eggs
Incubation means maintaining suitable temperature/humidity so the embryo develops normally.
LDE (other) • 2021 • Paper-I
Periodically some branches of the mulberry plants are methodically cut off, and this operation is called:
A)
Cutting
B)
Layering
C)
Pruning
D)
Mulching
This follows the standard mulberry/sericulture cultivation recommendation for the stated condition.
LDE (other) • 2021 • Paper-I
The required temperature and relative humidity during preservation of leaves:
A)
below 5oC and over 75%
B)
below 10oC and over 80%
C)
below 20oC and over 90%
D)
below 25oC and over 95%
This is the standard sericulture/agronomic practice for the condition stated.
LDE (other) • 2021 • Paper-I
The rearing room should have proper ventilation of air and __________ of light and __________ of darkness:
A)
18 hours and 1 hours
B)
18 hours and 2 hours
C)
18 hours and 6 hours
D)
18 hours and 8 hours
This is the standard sericulture/agronomic practice for the condition stated.