Agronomy MCQ Question and Answer | Agriculture MCQ Question

Retting is the process employing the action of micro-organisms and moisture on plants to dissolve or rot away much of the cellular tissues and pectins surrounding bast-fiber bundles, thus facilitating the separation of fibre from the stem.
This is the process involved in the production of linen from the flax stalks and coir from the coconut husks.

Clipper is the variety of barley. It is the dominant variety of barley for around 20 years. It takes 135 - 140 days to mature. It is suitable for malt production and brewing.

Sujata is a new high spinning cotton variety grown mostly in Tamil Nadu. It proves good quality fibres and is capable of spinning 100 counts and was comparable to several other Egyptian and Sudan varieties.

Pusa Phalguni is the dwarf variety of Cowpea that takes 60 days to mature. And is suitable for sowing in February and March.

UPAS-120 is the extra early maturing variety of pigeon pea, not green gram.

TPS refers to True potato seed and is a botanical seed developed in the berry of the plant as a result of fertilization and sexual reproduction. TPS is a very effective and cheap source of planting material. The cost of seed tubers and the spread of virus disease can be greatly minimized by using TPS.
100 grams of true potato seed is required for one hectare planting.

Groundnut belongs to the family of legumes and is grown for its edible seeds. Its seeds are covered with shells.
The percentage of the kernel in groundnut with the shell is about 70%.
Kernels have an oil recovery of about 40% - 42%.

The speed of the wind is measured by an instrument known as Anemometer.
It also measures the direction of the wind. It is a common weather station instrument.
It is of various types and designs, the basic working of this instrument is that the wheels or cups rotate proportionally to the speed of the wind, which means the stronger the wind blows, the faster the wheels rotate. And it counts the number of rotations to calculate the speed of the wind.

Crop rotation intensity is growing the combination of crops that will match soil water storage with crop water use under the local climatic conditions in a year.
This can be calculated by counting the number of crops grown in a rotation and is multiplied by 100 and then divided by the duration of the rotation.
Here 3 crops will be counted i.e maize, moong, wheat + gram together. Therefore the rotation intensity will be 300%.

The envelope of air around us is known as the atmosphere. Air is a mixture of many gases and tiny dust particles.
It is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% carbon dioxide and very small amounts of other gases and water vapour.
The content of nitrogen is highest in atmospheric air.

Rice tungro is a disease caused by the combination of two Rice tungro viruses, bacilliform virus (RTBV) and Spherical virus (RTSV).
It is transmitted by Green leaf hopper or sometimes by aphids in a semipersistent manner.
It causes leaf discolouration, stunted growth, reduced tiller numbers and sterile grains.

The term inter-species means two plants of two different species.
Whereas the term intra-species means two plants of the same species.

IMO stands for International Meteorological Organization and was established in September 1873. Now, it is known by its new name i.e. World Meteorological Organization since 23^rd March, 1950 and is headquartered in Geneva, Switzerland.
IMO was formed to exchange weather information among the countries of the world.