- The coldest region of the atmosphere is the Mesosphere.
- The color of chlorophyll a is blue-green.
- The color of chlorophyll b is yellow-green.
- The commercial propagation method of Phalsa is by seed.
- The cells without cell walls are Protoplasts.
- The Central Directorate of Plant Protection and Quarantine was established in 1946.
- The central whorl of rice is infested by larvae, causing leaves to shrivel with longitudinal blotches due to the attack of Hydrellia, the Rice Whorl Maggot.
- The chairman of the National Development Council (NDC) is the Prime Minister.
- The change in cost associated with an increase of one unit of output is Marginal cost (MC).
- The characteristics of the type of environment where an organism normally lives are referred to as Habitat.
- The chemical N-4 (P-Caloro-phenoxy)-phenyl-N-N dimethyl urea is commonly known as Tenoron.
- The chemical accumulated during drought conditions is Proline.
- The chemical used for better color and keeping quality of papain is Potassium meta-bisulphite (KMS).
- The chemical used for delinting of cotton is H2SO4.
- The chemical used for fruit setting is Triacontanol.
- The common varieties of Spreading type groundnut are Chandra, Type-28, 64, TMV-1, 3, M-13, 37, Vikram, Verginia, Gangapuri, Godheri-2, 3.
- The component of water potential determined by the attraction between water and hydrating colloids is Matric potential.
- The composition of soil air may vary with organic matter content.
- The concentration of both Oxygen and Carbon dioxide is directly related to soil organic matter.
- The concentration of salt sufficient to preserve most food products is 15-25%.
- A thermal process mostly used for vegetables prior to freezing, drying, or canning to soften the texture is Blanching.
- The concentration of soil water in soil is 50%.
- The concentration of sugar required for the preservation of fruits and jam is 66%.
- The concept of ‘Osmosis’ was given by Abbe Nollet.
- The concept of demonstration was given by Dr. Seeman A. Knapp.
- The concept of the pH scale was formulated by Sorenson.
- The state having the highest area under summer maize is Bihar.
- The Indian Journal of Agriculture Sciences is published by ICAR.
- The commercial propagation method of papaya is by seed (500 g/ha).
- The commercial propagation method of pineapple is by suckers and slips.
- The commercially cultivated variety of ber is Umran.
- The Commission for Agricultural Costs and Prices (CACP) recommends minimum Support Prices for 24 important crops.
- The common cover crops recommended for Rubber cultivation are Pueraria phaseoloides and Mucuna bracteata.
- Apical bud dominance is caused by Auxin Hormone.
- The common varieties of brown sarson are JSF-1,2,5, JSI-7, EB-7, JSH-129, Pusa Kalyani, Sufla, BSH-1.
- The common varieties of bunch type groundnut are Jyoti, Kishan, TMV-11, 12, AK-12, 24, Junagarh-11, ICGS-1, 10, 11, 44.
- The common varieties of Field pea are Rachana, Arpana, Ambika, T-65,163, Hans, KP-885, Pant C-5.
- The country producing the largest quantity of small cardamom is Guatemala.
- The pattern of planting which has maximum plant population is Cuboidal pattern.
- The CPE value for scheduling irrigation at IW/CPE of 0.5 with 5 cm irrigation water is 10.
- The critical mean temperature for flowering and fertilization in rice is 16-20°C.
- The critical stages for irrigation in rapeseed and mustard are the Rosette stage and Siliqua formation stage.
- The crop grown on degraded land for improvement is called a Conservation crop.
- The crop growth model tested in India to simulate rice yields is Ceres Rice.
- The crop oilcake with the highest nitrification rate is Groundnut.
- Crop rotation intensity is calculated as C.R.I. = (No. of crops in crop rotation × 100) / (No. of years in crop rotation).
- The crop that gives the highest oil production per unit area is Oil Palm.
- The cropping system beneficial to prevent soil erosion due to winds is Strip cropping.
- The concept of Potential evapo-transpiration was first introduced by Thornthwaite (1948).
- The concept of Totipotency was originally presented by Gottlieb Haberlandt in 1902.
- The Parshall flume is used for measurement of water flow.
- The contingent crop plan suggested during a long gap in rainfall is providing life-saving irrigation only at critical growth stages.
- The contribution of the central government in the capital share of Regional Rural Banks is 50%.
- The cooperative farming in which ownership and operations are both individual is called Cooperative better farming.
- The cooperative farming in which ownership is individual and operations are collective is called Cooperative joint farming.
- The co-operative year is from July to June.
- The cost related to variable resources and that changes with the output is called Variable Costs.
- The practice of grazing animals on public lands is called Ranching.
- The cotton aphid (Aphis gossypii) is predated by Menochilus sexmaculatus.
- The degree of scatter or variation of the variable about a central tendency is called Dispersion.
- The demand for this bio-fertiliser is highest for Azospirillum.
- The demonstration used to improve skill, knowledge, and attitude is called Result demonstration.
- The density of soil water is maximum at 4°C.
- The depth of water (cm) to be drained in a 24-hour period from the entire drainage area is known as Drainage coefficient.
- The design in which fertility gradient is in two-way direction is called Latin Square Design (LSD).
- The first project launched in India was Etawah.
- The maximum oilseed producer crop in India is groundnut.
- The maximum nutrient uptake by plants is K⁺ (potassium).
- The nutrient available in combined form is nitrogen.
- Sulphur is available in which form? SO₄²⁻ (sulfate).
- Sugarcane sets required per hectare are 35,000 – 40,000.
- The most efficient irrigation system is drip irrigation.
- There are 4 deemed universities under ICAR.
- Insects that attack rice at night are armyworms.
- The formula of gypsum is CaSO₄·2H₂O.
- The maximum productivity among cereals in the world is from maize.
- The queen of cereals is known as maize.
- The gold of America is known as soybean.
- The backbone of America is the crop maize.
- The hulling percentage in rice is 65%.
- The weight of a cotton bale is 170 kg.
- Which is not a measure of central tendency? Range.
- Pungency in onion is due to the presence of sulfur compounds.
- The CEC (Cation Exchange Capacity) of humus is 200 – 300.
- Movement from higher concentration to lower concentration is known as diffusion.
- The ‘V’ shape pattern of yellowing shows N deficiency.
- The fiber of cotton contains cellulose.
- Available water lies between 33 to 15 bar.
- Growing subsidiary crops between widely rowed spaces of the main crop is called intercropping.
- The least degree of freedom in ANOVA is 12.
- Sugar cane is a quantitative short-day plant.
- Isotopes have the same number of protons.
- N₂ deficiency occurs in plants on the lower leaves.
- The highest K₂O containing fertilizer is KCl (60%).
- Boron is harmful to plants when more than 3 PPM concentration.
- Which is not a measure of dispersion? Coefficient of variation.
- The Irish famine (1845) was caused by Phytophthora infestans.
- The production of ATP in the presence of light is known as photo-phosphorylation.
- For seed purpose, carrot is grown as a biennial.
- Soil moisture is measured by a tensiometer.
- Bacteria that convert NH₄⁺ to NO₂⁻ are Nitrosomonas.
- The physical condition of soil is known as soil tilth.
- An infrared thermometer is used for measuring crop canopy temperature.
- The most serious disease in sugarcane is red rot.
- Ribosomes found in mitochondria are of 70s type.
- Black soils are found in Maharashtra.
- The world's staple food is wheat.
- A 3M deep, more than 18M wide gully is known as a small gully.
- In which fertilizer N and P are present in the highest amounts? DAP (18%, 46%).
- The leading state in acreage of rice is West Bengal.
- The crop with the highest percentage of irrigation is wheat.
- Noble cane is Saccharum officinarum.
- The rediscovery of Mendel's laws was by De Vries, Correns, and Tschermak.
- The pattern used in dry land farming is broadcasting.
- Parboiling in rice conserves Vitamin B.
- Maize is a C4 plant.
- The 1943 Bengal famine was due to the blast of rice (Pyricularia oryzae).
- Maximum total porosity is found in clay soils.
- The most frost-affected crop is gram.
- H.D. -2329 is a variety of wheat.
- Drip irrigation was introduced in India from Israel.
- The nitrogen percentage in CAN is 25%.
- The highest amount of rainfall received in India is from the South West Monsoon.
- The river basin with the most utilizable flow is the Ganga.
- The first agricultural chemist of the Imperial Agricultural Research Station was J.W. Leather.
- A pseudo cereal is buckwheat.
- The king of fruits is the mango.
- The queen of spices is cardamom.
- Water rises in plants by transpiration pull.
- The first fertilizer produced in India was SSP.
- The oil content in soybean is 20%.
- The Handbook of Agriculture is published by ICAR.
- The growth of plants towards light is known as phototropism.
- Agmark indicates the quality of food products.
- The diameter of clay particles is <0.002 mm.
- The available forms of nitrogen in soil are NH₄⁺ and NO₃⁻.
- The ESP of alkali soils is > 15%.
- The normal ratio of rice/paddy is 2:3.
- A crop used for attracting insects is called a trap crop.
- Wind velocity can be measured using an anemometer.
- Deflocculation of soil particles occurs due to sodium (Na).
- Planting before the harvest of the main crop is known as relay cropping.
- The substance that is not a greenhouse gas is O₂.
- Urea is most commonly marketed as prills.
- The maximum metabolic activity of plants occurs at 22 – 30°C.
- The ICMR recommendation for pulse consumption is 85 grams per day per capita.
- 1 gram of glucose contains 0.45 grams of fat.
- The harvest index in wheat is 0.35 – 0.45.
- Leaf curl of tomato is caused by a virus.
- The crop that prefers the ammoniacal form of nitrogen is rice.
- PUFA content is highest in sunflower.
- Inter-specific hybrids are more common in cotton.
- Shedding of plant parts is due to abscisic acid (ABA).
- Soil is classified as clay when clay separates are a minimum of 30%.