Crop Production Practice Questions (Q11-15) - Agronomy

11

ICAR JRF Agronomy 29 Jun 2024Shift 1

Match the Following +4 −1

Match List-I with List-II:

Choose the correct answer from the options given below:

List - I Plant community		List - II Nature of soil and water requirement
A	Helophytes Helophytes	I	Cold soil Cold soil
B	Oxylophytes Oxylophytes	II	Sand and gravel Sand and gravel
C	Psychrophytes Psychrophytes	III	Acid soils Acid soils
D	Psammophytes Psammophytes	IV	Marsh soil Marsh soil
E	Halophytes Halophytes	V	Saline soil Saline soil

(A)- (HI), (8) - (ID, () - (IV), (B) - (V), (E) - IV (A)- (V), (B) - (ill), (C) - (), (D) - (IV), (E) - (0) (A) - (1), (B) - (M), (C) - (IV), (D) - (V), (E) - (Ill) (A) - (IV), (B) - (lll), (C) - (1), (DB) - (I, (E)- ()

12

ICAR JRF Agronomy 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements

Statement (A) : Mutant organisms that lack carotenoids cannot live in the presence of both light and molecular oxygen.

Statement (R) : Carotenoids exert their photo-protective action by rapidly quenching the excited state of chlorophyll; and help dissipate the energy stored in the chlorophyll by excitation transfer or photochemistry.

In light of the above statements, choose the most appropriate answer from the options given below.

Both (A) and (R) are correct and (R) is the correct explanation of (A). Both (A) and (R) are correct but (R) is NOT the correct explanation of (A) (A) is correct but (R) is not correct. (A) is not correct but (R) is correct.

13

ICAR JRF Agronomy 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A) : Dehydrogenase activity reflects the total range of the oxidative activity of soil microorganisms and may be considered a good indicator of the oxidative metabolism in soils.

Reason (R) : Dehydrogenase oxidizes soil organic matter by transferring protons and electrons from organic substrates to inorganic acceptors.

In light of the above statements, choose the correct answer from the options given below.

Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is NOT the correct explanation of (A). (A) is true but (R) is false. (A) is false but (R) is true.

14

ICAR JRF Agronomy 29 Jun 2024Shift 1

Match the Following +4 −1

Match List-I with List-II:

Choose the correct answer from the options given below:

List - I Nutrient element		List - II Enzymes
A	Copper Copper	I	Nitrogenase and nitrate reductase Nitrogenase and nitrate reductase
B	Iron Iron	II	Ascorbic acid oxidase and polyphenol oxidase Ascorbic acid oxidase and polyphenol oxidase
C	Zinc Zinc	III	Catalase and peroxidase Catalase and peroxidase
D	Molybdenum Molybdenum	IV	Carbonic anhydrase and alcohol dehydrogenase Carbonic anhydrase and alcohol dehydrogenase

(A) - (1), (B) - (Il), (C) - (Ill), (D) - (IV) (A) - (Il), (B) - (Ill), (C) - (IV), (B) - (1) (A) - (1), (B) - (M), (C) - (V), (D) - (ttl) (A) - (III), (B) - (V), (C)~ (1), (B) - (HN)

15

ICAR JRF Agronomy 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Calcium requirement is highest for

Cereals Legumes Oil seeds Forage crops

Crop Production

Agronomy Subjects

General Agriculture

Crop Ecology & Geography

Weed Management

Soil Fertility & Fertilizer Use

Dryland Agronomy

Crop Production

Agricultural Statistics

Previous Year Papers of Agronomy

Agronomy- ICAR JRF/SRF 2024

Choose Exam

RPSC Agriculture Exams

RSSB Agriculture Exams

National & PG Entrances