Agronomy MCQ Question and Answer | Agriculture MCQ Question

Rice, Oryza sativa is believed to be originated from India. Historians believe that the indica variety of rice was first domesticated in the area covering the eastern Himalayas (north-eastern India), stretching through Burma (now called Myanmar), Thailand, Vietnam and southern China.

Dormancy is a strategical condition of higher plants to survive adverse conditions by pausing growth and development, and it can occur in any organ like seeds or buds, etc. It can be controlled both by genetic and environmental factors. While Potassium nitrate is the strongest chemical used for breaking dormancy.

A mint is a name of an industry that manufactures coins that can be used as currency. The first mint was established in Lydia in the 7^th century BC for coining gold, silver and electrum.

Here option D, Maize ⇔ Swarna is not correctly matched as Swarna is not any variety of maize crop. While the similar named variety of maize is Suvarna Nmh 589 seeds. All others correctly match the crop with its variety.

Khaira disease is associated with paddy. It is a micro nutritional deficiency disease characterized by the presence of dusty brown patches on leaves which ultimately undergo necrosis. It affects the leaf of the plant because of which the rate of photosynthesis is decreased ultimately affecting the production. The essential nutrient responsible for khaira disease in rice is Zinc.

PSM i.e. Phosphate solubilizing microbes are a group of beneficial microbes present in organic matter of soil that makes insoluble phosphate available to plants by mineralization process, they make it soluble which is then easily absorbed and assimilated by plants. Pseudomonas aeruginosa was reported first time as a promising phosphate solubilizer and biofertilizer.

Parshall flume is an open channel flow metering device that was developed to measure the flow of surface waters and irrigation flows. It is a fixed hydraulic structure. It is used to measure volumetric flow rate in industrial discharges, municipal sewer lines, and influent/effluent flows in treatment plants also.

The minimum percentage of clay in clayey soil is 40% and the maximum is 100%. The easiest way to recognize the clay soil is to check if the water sits around the soil after a rain, or if the soil is sticky, then it is considered clay soil.

The farmer first is a concept developed by ICAR. It stands for farmer's Farm, Innovations, Resources, Science and Technology (FIRST). ICAR has proposed this concept to keep the farmer in a central role for all research programs for identification, prioritization, and conduct of experiments and its management in farmer's conditions.