Agronomy - Study Mode

[#396] The first GM potato developed at CPRI for increasing protein content in tubers consists of genes from
Correct Answer

(D) Grain amaranthus

Explanation

Solution: The first genetically modified potato developed at CPRI (Central Potato Research Institute) is named Protato . It was created to increase the protein content of potatoes and it contains nearly 60% more protein than a regular potato. To make this hybrid, the genes from potato plants are crossed with the genes from grain amaranthus .

[#397] Practice of Cross Ploughing in standing Rice Crop is known as
Correct Answer

(B) Beushening

Explanation

Solution: Beushening or cross ploughing is a condition of ploughing in a standing rice crop when the weeds grow simultaneously for up to 30 - 40 days. Then ploughing is done in a submerged rice field with 5 - 10 cm of water. It is a traditional rice cultivation technique, commonly used in rainfed regions of eastern India like Assam, Bihar, Orrisa and West Bengal.

[#398] Rotovator is
Correct Answer

(D) Both A and B

Explanation

Solution: A rotovator is an agricultural implement that can serve both as a primary tillage implement and a secondary tillage implement, depending on its use and settings. As a primary tillage implement, a rotovator is used to perform deep soil tillage to break up hard and compacted soil, prepare the field for planting, and bury crop residues. It is capable of working at a greater depth and is often used to prepare the soil for the initial seedbed preparation. As a secondary tillage implement, a rotovator is used for shallow tillage after the primary tillage is done. It is used to create a finer seedbed, control weeds, and incorporate fertilizers or amendments into the soil. In this role, it helps in refining the soil structure and preparing it for planting. Since a rotovator can perform both primary and secondary tillage operations, the correct answer is " D. Both A and B ."

[#399] A fertilizer which supplies three essential plant nutrients is
Correct Answer

(C) SSP (Single Superphosphate)

Explanation

Solution: Out of the following options SSP is the fertilizer that supplies three essential plant nutrients. SSP is single superphosphate, the first commercial mineral fertilizer. It contains 3 major nutrients namely Phosphorus (14.5%), Sulphur (11%) and Calcium (21%). SSP helps in promoting root growth and improves soil texture.

[#400] Which one of the following operations is associated with the process of nipping in gram
Correct Answer

(D) Plucking the apical buds to promote branches

Explanation

Solution: Nipping is a special practice in agriculture that involves plucking apical buds of the crops like gram. The main aim behind this practice is to stop apical growth and promotes lateral branching, which helps the plant produces more pods and flowers and increased yield.