Agronomy - Study Mode

[#391] Dough stage of a agricultural crop means
Correct Answer

(C) Milking to hardening stage

Explanation

Solution: The dough stage of any agricultural crop means when the kernels or seeds are well filled, and on squeezing the liquid comes out as a dough like consistency, hence termed the dough stage. It refers to the stage of seed kernels from milking to hardening.

[#392] The gas more destructive to ozone layer is?
Correct Answer

(C) CFC

Explanation

Solution: Of these gases, CFC, i.e., chlorofluorocarbons, cause major destruction to the ozone layer, which shields the earth from harmful ultra-violet radiation. The most common sources of CFCs are refrigerants used in AC and refrigerators, while aircraft halon and aerosol sprays also emit CFCs into the atmosphere.

[#393] Precursor of ABA (abscisic acid).
Correct Answer

(B) Violaxanthin

Explanation

Solution: ABA (abscisic acid) is an important plant hormone that regulates numerous aspects of plant growth, development, and stress responses. Violaxanthin is the precursor of Abscisic acid. A Whereas Precursor is any substance, mostly enzymes, which on application to an inactive substance converts it to an active one. Hence, violaxanthin activates abscisic acid for its work.

[#394] Yield advantage in an intercropping system occurs due to the development of
Correct Answer

(C) Both A and B

Explanation

Solution: Intercropping is the practice of growing two or more crops on the same agricultural land in a season. It is very beneficial as it leads to increased profit, ergonomic usage of the land and prevention of soil erosion. It also adds nutrients to the soil for the main crop. It mainly adds an advantage in yield due to the development of temporal complementarity as well as spatial complementarity.

[#395] The inflorescence of wheat is known as
Correct Answer

(A) Ear

Explanation

Solution: The inflorescence is nothing but the arrangement of flowers on the plant. The stem holding the whole inflorescence is called a peduncle. The inflorescence of wheat is spike spikelet, a type of racemose inflorescence, in a common language also called ear.