NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Agriculture MCQs (Practice_Test 28 of 56)
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- Which one of the following groups denotes the species of rose predominantly used for rose oil extraction?
- rosa bourboniana, r foetida, r indica
- r chinensis, r rugosa, r canina
- r damascena, r centifolia, r, bourboniana
- r multiflora, r canina, r chinensis
- Consider the following statements:
- Guava is propagated through seeds only.
- Most common method of propagating litchi is air-yering.
- The propagation of peach is done by budding on seedling peach.
- Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1,2 and 3
- Which one of the following compounds evokes a reaction in an individual of different species that is favorable to the emitter but not to the receiver?
- Allomone
- Antimone
- Synomone
- Kairomone
- Which one of the following parasitoids proved effective for the control of citrus mealy bug?
- Apanteles angaleti
- Leptomastix dactylopii
- Ooencyrtus erionotae
- Tetrastichus radiatus
- Which one of the following is the recommended storage temperatur range to extend the storage life of cut spikes of gladiolus for two weeks?
- 2 to 0° C
- 1 to 2° C
- 10 to 15° C
- 20 to 25° C
- Which one of the following pathogens shows powder patches on leaves and other green parts of the plants?
- Phytophthor colocasiae
- Assochyta phaseolorum
- Erysiphe polygoni
- Glomerella lindemuthianum
- Match List-with List-and select the correct answer using the code given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Agriculture MCQs (Practice_Test 28 of 56) List-I (Pest) List-II (Immatur stage) - Bermisia tabaci
- Orseolia oryzae
- Hispa armigera
- Anomis sabulifera
- Maggot
- Grub
- Nymph
- Caterpillar
- A
- B
- C
- D
- 4
- 2
- 1
- 3
- 4
- 1
- 2
- 3
- 3
- 1
- 2
- 4
- 3
- 2
- 1
- 4
- Consider the following statements:
- Marigold flower last longer if the field is irrigated befor plucking of flowers.
- Carnation flower should always be transported preceded.
- Which of the statements giver above is⟋are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither I nor 2
- Infectious chlorosis in banana is caused by which one of the following?
- Virus
- Bacteria
- Fungus
- Phanerogamic plant parasite
- With reference to biological control of pests, consider the following statements:
- Bacillus thuringiensis is a biological control agent against tobacco caterpillar.
- Menochilus sexmaculata feeds on aphids and mealy bugs.
- Which of the statements given above is⟋are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
- Which one of the following insect pests produces՚shoot hole damage?
- Eublema silicula
- Contarinia sorghicola
- Chilo partellus
- Nymphula depunctalis
- Which one of the following pair is not correctly matched?
- Match Item 1: Heavy shedding of squares
- Match Item 2: Earias insulana
- Match Item 1: Pigeon pea wilt
- Match Item 2: Bemisia tabaci
- Match Item 1: Double seed formation
- Match Item 2: Pectinophora gossypiella
- Match Item 1: Rice piants yellow & red. Growth is adversely affected
- Match Item 2: Nephotettix apicalis
- What is the droplet spectrum of mist blower
- 400 − 00m
- 100 − 0m
- 50 − 0m
- 1 − m
- In which one of the following nozzles, the ratio of fluid discharge to air is 1 to 1000 times for appropriate atomization?
- Cone nozzle
- Gaseous nozzle
- Hydraulic nozzle
- Centrifugal nozzle
- Consider the following pairs:
- Match Item 1: Cucumber
- Match Item 2: Monoecious plant
- Match Item 1: Bitter gourd
- Match Item 2: Monoecious plant
- Match Item 1: Pointed gourd
- Match Item 2: Dioecious plant
- Which of the above pair is⟋are correctly matched?
- 1 and 2 only
- 2 and 3 only
- 3 only
- 1,2 and 3
- Match List I with List II and select the correct answer using the code given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Agriculture MCQs (Practice_Test 28 of 56) List-I (Insect Pest) List-II (resistant variety) - Atherigona soccata
- Chilo partellus
- Scirpophaga incertulas
- Helicoverpa armigera
- ratna
- Dulia
- Kanchan
- Maldandi
- A
- B
- C
- D
- 2
- 1
- 3
- 4
- 2
- 3
- 1
- 4
- 4
- 1
- 3
- 2
- 4
- 3
- 1
- 2
- Which one of the following is the vector for yellow vein mosaic of okra?
- White fly
- Green plant hopper
- Aphids
- Jassids
- Which one of the following pesticides is a most potent insecticidal, acricidal and anthelminthic compound?
- Avermectins
- Ecdysteroids
- Organ chlorines
- Paris green
- With reference to fungal infection, consider the following:
- Ger tube production
- Aspersorium formation
- Penetration into the host tissue
- Formation of infection threads
- What is the correct sequence of the above?
- 3 − 1 − 4
- 4 − 2 − 1
- 1 − 4 − 3
- 2 − 3 − 4
- Which one of the following is the correct sequence regarding the appearance of different stages in the life cycle of cereal rusts?
- Pycnial-Uredial-ecial-Telial-Basidial
- Pycnial-ecial-Uredial-Telial-Basidial
- Aecial-ycnial-Uredial-Telial-Basidial
- Uredial-Pycnial-ecial-Basidial-Telial
- Match List-with List-and select the correct answer using the code given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Agriculture MCQs (Practice_Test 28 of 56) List-I (Disease) List-II (Kind of causal organism) - Leaf cur of tomato
- Black ar of cotton
- Black scur of potato
- Ear cockles of wheat
- Bacteria
- Fungus
- Nematode
- Virus
- A
- B
- C
- D
- 3
- 1
- 2
- 4
- 3
- 2
- 1
- 4
- 4
- 2
- 1
- 3
- 4
- 1
- 2
- 3
- Which one of the following processes does not involve any role of abscises acid?
- Stomatal closure
- Dormancy
- Lateral bud development
- Defense against stresses
- What is the quantity of chlorpyriphos 20 EC required for treating an area which requires 1000 litres of spray fluid at 0-% strength?
- 1000 ml
- 1500 ml
- 2000 ml
- 2500 ml
- Which one of the following is an end parasite, the larvae of which penetrate roots causing small galls there?
- Anguina tritici
- Aphelenchoides besseyi
- Meloidogyne graminicola
- Tylenchorhynchus vulgaris
- Which one of the following methods is not used for determining heterogametic sex?
- Cytological identification of heteromorphy pair of sex chromosomes
- Banding (Q banding, C banding, r banding)
- Vigour of males in the progenies
- Sex ratio in the progenies
- Assertion (A) : Pollination is not necessary for the development of endosper in apodictic crops.
- Reason (R) : Apodictic seeds ar formed without the union of gametes.
- Both A and R ar individually true and r is the correct explanation of A.
- Both A and R ar individually true but r is not the correct explanation of A.
- A is true but r is false
- A is false but r is true
- Assertion (A) : Phosphorus availability is one of the major constraints to plant growth in nature.
- Reason (R) : Phosphorus has low solubility and high sorption capacity in soil.
- Both A and R ar individually true and r is the correct explanation of A.
- Both A and R ar individually true but r is not the correct explanation of A.
- A is true but r is false
- A is false but r is true
- Assertion (A) : In India, the yield of the kharif crop of sesamum is ver high as compared to that in other seasons.
- Reason (R) : In India, the kharif crop of sesamum is entirety rained.
- Both A and R ar individually true and r is the correct explanation of A.
- Both A and R ar individually true but r is not the correct explanation of A.
- A is true but r is false
- A is false but r is true
- Assertion (A) : Multilane varieties exhibit durable disease resistance.
- Reason (R) : Major genes responsible for conferring disease resistance may be incorporated in a popular variety using backcross method of breeding.
- Both A and R ar individually true and r is the correct explanation of A.
- Both A and R ar individually true but r is not the correct explanation of A.
- A is true but r is false
- A is false but r is true
- Assertion (A) : Volatilization losses of N as ammonia ar considerable in calcareous soils.
- Reason (R) : High microbial activity in calcareous soils leads to development of soil acidity favoring the supply of H + ions for the formation of NH3 to escape from soil.
- Both A and R ar individually true and r is the correct explanation of A.
- Both A and R ar individually true but r is not the correct explanation of A.
- A is true but r is false
- A is false but r is true