Agronomy MCQ Question and Answer | Agriculture MCQ Question

A spectrophotometer is an instrument that measures the number of photons absorbed after it passes through the sample solution.
It is based on Beer-Lambert Law which states that the amount of light absorbed is directly proportional to the concentration of the solute in the solution and the thickness of the solution under analysis.

Kalyan Sona is the semi-dwarf variety of Wheat developed in 1963. It is a double dwarf variety that possesses good yield, is disease resistant, and is cultivated all over India.
Wheat is one of the oldest and most important cereal crops grown in a variety of soils.

Humic acid is a fraction of humus that is soluble in alkali and insoluble in acid.
Humus is the organic and nutrient-providing material of soil, it is formed by the decomposition of leaves and other plant material by soil microorganisms.
Humic acid is the group of molecules that bind to and help plant roots receive, water and nutrients.

Cotton is the crop that has the highest consumption of pesticides approximately 50%.
Cotton cultivation covers 5% of agricultural land but it accounts for the consumption of 50% of pesticides.

Parawilt is also known as Sudden Wilt. In wilted plants, the root system degenerates. Damage to the roots affects their ability to take up and move water to the rest of the plant. This lead to higher transpiration in wilted plants due to their insensitive stomata, which ultimately causes parawilt in cotton.

The above formula represents MAI which is Moisture Adequacy Index. It is the standardized measure used for assessing the degree of adequacy of rainfall and soil moisture to meet the potential water requirement of crops.
LER is Land Equivalent Ratio, which means the ratio of the area under sole cropping to the area under intercropping needed to give equal amounts of yield at the same management level.

SOP is the Standard operating procedure for use of Drone application, with pesticides for Crop Protection and for Spraying in soil and crop nutrients in Agricultural, Forestry, and Non-cropped areas.
As per the table, food grain production in SOP during 2003 is Rice - 77.7 m. tonnes, wheat - 68.9 m. tonnes, coarse grain - 25.1 m. tonnes and pulses - 11.5 m. tonnes.

Aggressivity is a measure of how much relative yield increase in one species is greater than that for another in any intercropping cultivation.
An aggressivity value of zero indicates that both components species are equally competitive.

The greenhouse effect is the phenomenon of warming of the earth's atmosphere because of the emission of greenhouse gases, which trap harmful U.V and infrared Solar Radiation.
The main consequences of Green house effect increase in the temperature of the earth i.e. Global Warming which further leads to the melting of glaciers, a rise in Sea level, floods and famine, etc.

The directorate of Wheat Research (DWR) is located in Karnal, Haryana.
It was moved from IARI, New Delhi to Karnal in the year 1990.
It ensures the food security of India by increasing the productivity and profitability of wheat with the use of eco-friendly techniques.