UPSC Mains AGRICULTURE-PAPER-I 2018

28 Questions • 400 Marks • With Detailed Model Answers

1
10 Marks150 Wordseasy
What is protoplasm? Briefly discuss its chemical composition and physical properties.
BotanyCell Biology
2
10 Marks150 Wordsmedium
Define mass selection. Explain its applications in self-pollinated crops.
AgricultureGenetics
3
10 Marks150 Wordsmedium
What do you mean by heterosis? Describe the physiological bases of heterosis.
AgricultureGenetics
4
10 Marks150 Wordsmedium
Explain seed enhancement with its merits. Describe in brief about the various practices used for seed enhancement.
AgriculturePlant Science
5
10 Marks150 Wordsmedium
Define enzyme. Give a note on the factors affecting the rate of enzymic activities in plants.
BotanyBiochemistry
6
20 Marksmedium
What do you mean by hybrid seed production? Describe the different types of sterility systems to facilitate hybrid seed production.
AgricultureGenetics
7
15 Marksmedium
What do you understand by chromosomal aberration? Discuss in brief, the major types of chromosomal aberrations.
GeneticsBotany
8
15 Markseasy
Enlist Mendel's different laws. Describe in detail about the law of segregation with suitable examples.
GeneticsBiology
9
20 Marksmedium
Enumerate the various types of seeds. Give a stepwise account of techniques associated with seed production.
AgriculturePlant Science
10
15 Marksmedium
What do you mean by self-incompatibility? Discuss ways and means to overcome self-incompatibility.
AgricultureGenetics
11
15 Marksmedium
Define Intellectual Property Rights (IPRs). Discuss IPRs' relevance to agriculture.
AgricultureLaw
12
20 Marksmedium
Differentiate between aneuploid, euploid and polyploid. Explain in detail the applications of allopolyploidy in crop improvement.
GeneticsAgriculture
13
15 Marksmedium
Give justification that "DNA fingerprinting is a vital tool for identification of the cultivars".
GeneticsAgriculture
14
15 Marksmedium
What do you mean by Soil-Plant-Atmosphere Continuum (SPAC)? Describe the different soil moisture constants.
AgricultureSoil Science
15
10 Marks150 Wordsmedium
What are the different methods of diagnosis of mineral nutrient deficiency? Describe the role and deficiency symptoms of zinc in rice and sulphur in oilseed crops.
AgriculturePlant Science
16
10 Marks150 Wordsmedium
Explain C3, C4 and CAM mechanism in plants and their importance in changing climatic conditions.
BotanyClimate Change
17
10 Marks150 Wordsmedium
Enlist factors affecting the post-harvest life of flowers. How can it be controlled by growth regulators?
HorticulturePlant Science
18
10 Marks150 Wordsmedium
Describe symptoms and management of leaf curl and mosaic diseases in tomato.
AgriculturePlant Pathology
19
10 Marks150 Wordsmedium
Give a brief account of food security in India before and after the green revolution. Suggest sustainable solutions to strengthen food security in the country.
AgricultureEconomy
20
20 Marksmedium
Define auxins and explain their role in crop life cycles. Also, discuss the uses of auxins in agriculture.
BotanyAgriculture
21
15 Marksmedium
Discuss the effects of water stress on plant growth and development. Describe plant borne mechanisms to escape from drought and stress situations.
BotanyAgriculture
22
15 Marksmedium
What do you understand by seed dormancy? Discuss the reasons for seed dormancy. Also, describe the various methods for breaking seed dormancy.
Plant ScienceAgriculture
23
20 Marksmedium
Give package of cultivation of pomegranate with reference to planting materials and methods, irrigation, nutrition, plant protection and post-harvest management.
HorticultureAgriculture
24
15 Marksmedium
Enlist different vegetative propagation methods for fruit plants. Describe the different layering techniques employed for fruit plant propagation.
HorticulturePlant Science
25
15 Marksmedium
Describe the post-harvest management and value-added products of black pepper.
HorticultureAgriculture
26
20 Marksmedium
What do you mean by Integrated Pest Management (IPM)? Discuss the constraints in successful implementation of IPM.
AgricultureEntomology
27
15 Marksmedium
Describe the importance of micro-nutrients in human health. Justify with suitable examples.
NutritionHealth
28
15 Marksmedium
What do you understand by e-National Agriculture Market (e-NAM)? Discuss the prospects and constraints of e-NAM in the context of Indian farmers.
AgricultureEconomy