ICAR JRF Mock Test - 3 - Agriculture Exams MCQ

Match the following:

Choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Gibberellins induce flowering in long day plants.
Reason (R): Genetically tall plant become dwarf by application of Gibberellin.
In light of the above statement choose the most appropriate answer from the options given below-

Given below are two statements:
Statement I: During mineralization process, ammonium is converted into nitrate by nitrosomonas bacteria. Nitrosomonas is gram negative and obligate chemolithoautotroph bacteria.
Statement II: Nitrogen fixed by rhizobium is translocated to xylem of host plant as asparagine and some extent as glutamine.
In light of above statements, choose the most appropriate answer from the option given below.

Given below are two statements:
Statement I: The term allelopathy is derived from Latin word where allelo means each other and patho means to suffer.
Statement II: Allelopathic compounds are secondary metabolites and are largely derivative of benzoic acid, cinnamic acid, phenolic acids etc.
In light of above statements, choose the most appropriate answer from the option given below.

Given below are two statements:
Statement I: Urea is the most widely used nitrogenous fertilizer in India, formed by a process called wohler synthesis.
Statement II: The synthesis of urea from cyanic acid and ammonia through the intermediate of ammonium cyanate is known as Wohler synthesis.
In light of above statements, choose the most appropriate answer from the option given below.

Given below are two statements:
Statement I: In soil solarization, thinner and white transparent polythene are effective. Covering soil with transparent polythene sheets raises the temperature upto 10-12 degree Celsius and it reaches upto 55-60 degree Celsius.
Statement II: Soil solarization tolerant weeds are Cynodon dactylon and Melilotus spp.
In light of above statements, choose the most appropriate answer from the option given below.

Given below are two statements:
Statement I: Polar herbicides enter into plants through lipid solubilisation via epicuticular wax while apolar herbicides enter into plants through diffusion via epicuticular wax.
Statement II: Solubilisation process of absorption is more active than diffusion and cuticular entry of herbicides is more rapid than stomatal entry.
In light of above statements, choose the most appropriate answer from the option given below.

Match the following:

Choose the correct answer from the options given below:

Aerobic bacteria is most active in_________?
(A) Moist soil
(B) Saturated soil
(C) Non-saturated soil
(D) Alluvial soil
Choose the correct answer from the options given below: