• Sticky bands around tree trunks provide protection against mango mealy bug.
  • Stomata are mainly found on the lower surface of leaves.
  • The spreading/Verginia runner type groundnut is Arachis hypogea procumbens.
  • The first Indian director of IARI was Dr. B. Vishvanath.
  • Sree Latha and Sree Kala are varieties of lesser yam.
  • Sree Padma is a variety of elephant foot yam.
  • Sree Prakash and Sree Sahya are varieties of tapioca.
  • Sree Rashmi is an improved variety of colocasia.
  • Sree Roopa and Sree Keerthi are varieties of greater yam.
  • Sree Subhra is a variety of white yam.
  • Plants growing in salt water are known as halophytes.
  • The Sriniketan experiment is associated with Rabindranath Tagore.
  • The crop destructive stage of Lepidopteran pests is the caterpillar stage.
  • Adults and nymphs are destructive stages in the case of thrips.
  • Stages of adoption are: Awareness > Interest > Evaluation > Trial > Adoption.
  • The Student's t-test was proposed by W.S. Gosset.
  • Reclamation disease is due to a deficiency of copper (Cu).
  • Studies on weather in relation to crop growth come under agricultural meteorology.
  • The study of algae is known as phycology.
  • The study of field crops is called agronomy.
  • The study of flowers is known as floriculture.
  • The study of fossil plants is known as paleobotany.
  • The study of fruit crops is called pomology.
  • The study of grasses is known as agrostology.
  • The study of insects is called entomology.
  • The study of the origin, classification, and morphology of soil is known as pedology.
  • Jhuming is a practice of rice cultivation in the eastern part of India.
  • Crop canopy temperature is measured using an infrared thermometer.
  • The stylet is associated with nematodes.
  • Stomata present only on the underside of leaves are found in apple and mulberry types.
  • Stone grafting is otherwise known as epicotyl grafting.
  • Stone grafting is practiced in cashew and mango.
  • The storage life of grapefruit is above 10 weeks.
  • The strain used for biological nitrogen fixation in alfalfa is Rhizobium meliloti.
  • Strawberry plants typically live for 4-5 years.
  • Striga is otherwise known as witchweed.
  • A strong solution having higher concentration is called a hypertonic solution.
  • The structural component of vitamin B12 is copper (Cu).
  • The structural formula for urea is NH2-CO-NH2.
  • Structural proteins include collagen and elastin.
  • Crumby structure and loamy texture are ideal for plant growth.
  • The Student's t-test is used when the sample size is small and the standard deviation is unknown.
  • A sufficient supply of O2 is essential for the biological processes occurring in soil.
  • Cuba is known as the sugar bowl.
  • The sugar present in milk is lactose.
  • Sugar yield from sugarcane is 10-15% from juice.
  • The biofertilizer used in sorghum and grasses is Azospirillum.
  • The Sugarcane Breeding Station was established in 1912 at Coimbatore, Tamil Nadu.
  • Sugarcane is considered mature when Brix reading is between 18-20%.
  • Sugarcane, cotton, and brassica are autopolyploids.
  • The sum of deviation values of items from the arithmetic mean is 0.
  • SUMITHION is the trade name of Fenitrihion.
  • Summer squash and winter squash are varieties of ash gourd.
  • Sun heat treatment is an example of a physical method of insect pest control.
  • The sun will be on the equator on March 21st and September 23rd.
  • Sub-humid regions normally receive a rainfall range of 750-1000 mm.
  • Sub-watersheds have an area of 10,000 to 50,000 hectares.
  • Subabul is otherwise known as Leucaena or ipil-ipil.
  • Subsoiling is a type of primary tillage.
  • Succulence and lodging in plants are due to excessive use of nitrogen.
  • Supplementary crops are neither complementary nor competitive.
  • Mulch crops are grown to conserve soil moisture through ground covering foliage.
  • Parallel cropping refers to crops that have different growth habits and zero competition with each other.
  • Obligate weeds are those that are grown in cultivated fields.
  • The sucking mouthparts of adults of moths and butterflies are known as proboscis.
  • A sudden heritable change in any characteristics of an organism is called mutation.
  • The biofertilizer used in wheat is Azotobacter.
  • Chousa is the sweetest variety of mango.
  • Swollen shoot is a virus disease affecting cocoa.
  • Symbiotic association between a fungus and the roots of plants is called mycorrhiza.
  • Yellowing of tea leaves may be due to a deficiency of sulfur.
  • Symptoms of bacterial blight in the seedling stage are known as Kresek.
  • Symptoms such as young seedlings getting killed before they emerge through the soil surface are due to pre-emergence damping off.
  • Synergetic cropping occurs when the yield of both crops is higher than their pure crops on a unit area (e.g., sugarcane + potato).
  • Synthetic pyrethroids were developed in 1973.
  • A synthetic variety is maintained by self-pollination.
  • “T” budding is otherwise known as shield budding.
  • T’ budding is practised in rose and citrus.
  • Taccavi loans are loans given by government agencies.
  • Sunflower has a high-quality edible oil content of 45-50%.
  • Sunflower is also known as a non-conventional oilseed crop.
  • Sunhemp is considered a green manure crop.
  • The biofertilizer more suited for sugarcane is Azatobacter.
  • Zinc (Zn) is a micronutrient deficient in Indian soils.
  • The super rice variety is Lunishree (CRRI, Cuttack).
  • The superiority of F1 hybrids over both of its parents is termed heterosis.
  • The supernatant liquid of cow dung slurry is applied in rice fields to control bacterial blight disease.
  •  Moths and butterflies belong to the order Lepidoptera.
  • Mottle leaf of citrus is due to zinc deficiency.
  • Mound layering is also known as stool layering.
  • The mouth parts of a plant bug are piercing and sucking.
  • The most important crop variety during the Green Revolution was HD 2329.
  • The most important form of wind erosion is saltation.
  • The most important nutrients required for tomato cultivation are boron and zinc.
  • Most commercial crops were introduced to India by the Portuguese.
  • The most poisonous pollutant in water is arsenic.
  • The most popular varieties of sapota include Kali patti, Pili patti, Oval, Cricket ball, Chatri, and Barahmasi.
  • The most popular variety of mango in India is Alphonso.
  • The most popular variety of pomegranate is Ganesh and Dholka.
  • The most prominent cropping pattern of rice in India is rice-wheat.
  • The most serious disease of sugarcane is red rot disease.
  • The most serious pest for tomato plants is the root knot nematode.
  • The most serious pest of cucurbits is the fruit fly.
  • The most suitable cropping system for wheat crop is mixed cropping.
  • Mustard crops planted at a spacing of 50 x 20 cm will have 100,000 plants per hectare.
  • Mutant varieties of tobacco include Jayashri and Bhavya.
  • Muttom Varikka and Sri Lanka/Singapore are varieties of jackfruit.
  • Mycorrhiza increases the availability of phosphorus.
  • Mycorrhiza-inoculated plants register higher nitrogen content.
  • N, P, and K are considered primary nutrients.
  • N, P, K, Ca, Mg, and S are categorized as macronutrients.
  • NABARD was started on 12th July 1982 and stands for the National Bank for Agriculture and Rural Development.
  • NADAMS means National Agricultural Drought Advisory and Management Systems, AgRIS Resources Information System.
  • NAFED is connected with agricultural marketing and stands for the National Agricultural Cooperative Marketing Federation of India Limited.
  • NAFED was established on 2nd October 1958.
  • The movement of bees, known as "the language of bees," is oriented with respect to the sun and gravity.
  • MSP (Minimum Support Price) is fixed by CACP (Commission of Agricultural Costs and Prices).
  • Mudicode is a variety of oriental pickling melon.
  • Mulberry cultivation is referred to as moriculture.
  • Mulgoa is a variety of mango.
  • Multiline breeding is widely exploited in wheat.
  • A multiple combination of trees, fruit trees, and vegetables is known as a homestead.
  • Multiplication of a large number of plant cells in appropriate environmental conditions with required nutrients is called plant tissue or in vitro culture.
  • A multipurpose tree species is Albizia lebbeck.
  • Murraya koenigii is known as curry leaf.
  • Muscle protein is referred to as collagen.
  • A mushroom is classified as a large fleshy fungus.
  • The National Biodiversity Authority is located in Chennai (established on 10th October 2003).
  • The National Botanical Research Institute is located in Lucknow, UP.
  • The National Centre for Mushroom Research and Training is located in Solan, Himachal Pradesh.
  • The National Commission on Farmers was established on 18th November 2004.
  • The chairman of the National Commission on Farmers is M.S. Swaminathan.
  • NCPAH stands for the National Committee on Plasticulture Applications in Horticulture (New Delhi).
  • The National Dairy Development Board (NDDB) was established on 16th July 1965 in Anand.
  • Instruments used for measuring the specific gravity of soil are pycnometers.
  • The first NDDB chairman was Dr. V. Kurien (1965-1998).
  • The national flower of India is the lotus (Nelumbo nucifera Gaertn).
  • The national flower of the USA is the rose.
  • The National Food Security Mission (NFSM) was launched in rabi 2007-08 to enhance the production of rice, wheat, and pulses by 10, 8, and 2 million tonnes respectively by the end of the Eleventh Plan.
  • Namakkal is a place in Tamil Nadu famous for egg production.
  • The essential nutrients available through air and water are carbon, hydrogen, and oxygen (C, H, O).
  • The leucoplast that functions as the storage of oil is called elaioplast.
  • The metallic chemical element useful in weather forecasting is mercury (used in thermometers).
  • The pest with international status is the locust.
  • Bacteria are prokaryotic organisms that do not contain mitochondria.
  • The tree whose wood is used to make cricket bats is willow.
  • Nandi, Narok, and Kazungula are varieties of Setaria grass.
  • Nanotechnology was coined by Nario Taniguchi in 1974 at the University of Tokyo, Japan.
  • Napier grass is otherwise known as elephant grass, Sudan grass, or king grass.
  • Narayakodi and Kumbhakodi are varieties of pepper.
  • The National Bamboo Mission was started in 2006-07.
  • Natural grazing pattern is known as ranching.
  • Natural resources that are renewable include water and wood.
  • Natural soil aggregates/masses are referred to as peds.
  • Naturally occurring auxin is IAA (Indole-3-acetic acid).
  • Navasree, Nithyasree, and Sugandhi are varieties of cinnamon.
  • NBFGR (National Bureau for Fish Genetic Resources) is located in Lucknow (established in 1983).
  • NBPGR (National Bureau of Plant Genetic Resources) is located in New Delhi.
  • NBSS and LUP (National Bureau of Soil Survey and Land Use Planning) is located in Nagpur.
  • Neelum, Kalapady, Benishan, Mulgoa, and Suvarnarekha are varieties of mango.
  • Neem contains azadirachtin, which gives it insecticidal properties.
  • Neem oil is an antifeedant.