Agronomy - Study Mode

[#656] Triticale is a cross between
Correct Answer

(C) Wheat and rye

Explanation

Solution: A hybrid formed by crossing Wheat and Rye is known as Triticale . It is the combination of the words Triticum (Wheat) and Secale (Rye). It was first bred in laboratories of Scotland by A. S. Wilson in 1873. It is mostly grown for forage or fodder, but nowadays also used as breakfast cereals.

[#657] A device for measuring percolation and leaching losses from a column of soil under controlled conditions is known as
Correct Answer

(D) Lysimeter

Explanation

Solution: A lysimeter is a device used to measure percolation and leaching losses from a column of soil under controlled conditions. It helps in studying water movement, nutrient loss, and soil-water balance, which are crucial for irrigation and soil management. Lysimeters are commonly used in agricultural research to understand evapotranspiration, groundwater recharge, and pollutant transport in the soil. Other options: Infiltrometer measures the rate of water infiltration into the soil. Odometer is used for measuring soil compaction and consolidation. Psychrometer is an instrument for measuring humidity.

[#658] Who laid the foundation for modern irrigation engineering in India?
Correct Answer

(D) Both A and B

Explanation

Solution: The modern irrigation system is the implementation of technology in irrigation by the use of sprinkler irrigation, surface irrigation, drip irrigation, and subsurface irrigation methods. Reservoirs for irrigation include aquifers, basins, that collect snowmelt, lakes, and basins created by dams. The foundation for modern irrigation engineering in India was laid by Sir Proby Cauthy and Sir Arthur Cotton .

[#659] One acre is equivalent to
Correct Answer

(D) 0.404 hec

Explanation

Solution: Acre is the unit of land measurement in British Imperial and United States Customary Systems. 1 acre = 4046.86 square meter. = 43560 square foot. = 0.4046 hectare.

[#660] Most serious disease of sugarcane is
Correct Answer

(B) Red rot

Explanation

Solution: There are various diseases caused by the number of pathogens in sugarcane. These are Red Rot, Wilt, Grassy shoot, Smut, Leaf Scald disease, Mosaic disease, Red striped Disease, etc. Out of all these, the most serious disease of sugarcane is Red rot, caused by the fungus Colletotrichum falcatum. It is characterized by interrupted red and white patches within the cane along with a sour odour.