Methods of seed treatment and their importance Part 1

Question No. 1 Marks +1 -0 Time

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What is the primary purpose of seed disinfection?

A. To protect the seed from soil-borne insects
B. To improve the seed's nutritional content
C. To eradicate fungal spores that have established within the seed coat or deeper tissues
D. To enhance the seed's germination speed

Question No. 2 Marks +1 -0 Time

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Which of the following is a physical method of seed treatment?

A. Coating with fungicides
B. Inoculation with Rhizobium
C. Hot water treatment
D. Soaking in a salt solution

Question No. 3 Marks +1 -0 Time

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What is the main advantage of using biological seed treatments?

A. They provide the broadest spectrum of pest control
B. They are generally more cost-effective than chemical treatments
C. They can promote plant growth and are environmentally friendly
D. They have a longer shelf life than other treatment types

Question No. 4 Marks +1 -0 Time

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Seed pelleting is a process that:

A. Significantly alters the size and shape of the seed
B. Only applies a thin, non-uniform layer of material
C. Is primarily used for disease resistance
D. Is the least expensive method of seed treatment

Question No. 5 Marks +1 -0 Time

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Which chemical is commonly used as a seed treatment fungicide?

A. Streptomycin
B. Thiram
C. Imidacloprid
D. Gibberellic acid

Question No. 6 Marks +1 -0 Time

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What is the primary goal of seed priming?

A. To kill all microorganisms on the seed surface
B. To initiate the metabolic processes of germination without radicle emergence
C. To add a protective outer layer to the seed
D. To increase the seed's weight for easier mechanical sowing

Question No. 7 Marks +1 -0 Time

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Why is a colorant often added to treated seeds?

A. To improve the seed's aesthetic appeal
B. To indicate that the seed has been treated and deter consumption by animals
C. To enhance the seed's ability to absorb sunlight
D. To increase the effectiveness of the pesticide

Question No. 8 Marks +1 -0 Time

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Which type of seed treatment would be most effective against soil-borne insects like wireworms?

A. Fungicide treatment
B. Seed priming
C. Insecticide treatment
D. Hot water treatment

Question No. 9 Marks +1 -0 Time

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What is the role of a polymer in seed coating formulations?

A. To act as a nutrient for the seedling
B. To bind the active ingredients to the seed and reduce dust
C. To directly kill fungal pathogens
D. To increase the water absorption of the seed

Question No. 10 Marks +1 -0 Time

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Hot water treatment of seeds is most effective for controlling:

A. Insect pests
B. Seed-borne bacterial and fungal diseases
C. Nutrient deficiencies
D. Drought stress

Question No. 11 Marks +1 -0 Time

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Which of the following is a key benefit of improved germination due to seed treatment?

A. It guarantees a higher yield regardless of growing conditions
B. It leads to a more uniform crop stand
C. It eliminates the need for any post-emergence weed control
D. It makes the plant resistant to all diseases

Question No. 12 Marks +1 -0 Time

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What is the main difference between seed disinfection and seed disinfestation?

A. Disinfection is for bacteria, while disinfestation is for fungi.
B. Disinfection targets internal pathogens, while disinfestation targets surface-borne organisms.
C. Disinfection is a physical process, while disinfestation is a chemical process.
D. There is no difference; the terms are interchangeable.

Question No. 13 Marks +1 -0 Time

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Biological seed treatments often use microorganisms like:

A. E. coli
B. Trichoderma and Bacillus subtilis
C. Penicillium notatum
D. Yeast

Question No. 14 Marks +1 -0 Time

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What is 'seed fortification'?

A. A method of making seeds physically harder.
B. The process of coating seeds with a thick layer of clay.
C. The enrichment of seeds with nutrients to improve vigour.
D. A technique to make seeds invisible to birds.

Question No. 15 Marks +1 -0 Time

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Which of the following is NOT a primary reason for treating seeds?

A. To increase the size of the fruit produced.
B. To control seed-borne diseases.
C. To improve germination and seedling establishment.
D. To protect against soil-borne pests.

Question No. 16 Marks +1 -0 Time

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What does 'systemic' mean in the context of a seed treatment insecticide?

A. The insecticide remains only on the seed coat.
B. The insecticide is absorbed by the seedling and distributed throughout its tissues.
C. The insecticide is only effective against flying insects.
D. The insecticide is made from natural plant extracts.

Question No. 17 Marks +1 -0 Time

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Seed priming with polyethylene glycol (PEG) is an example of:

A. Hydro-priming
B. Osmo-priming
C. Bio-priming
D. Thermo-priming

Question No. 18 Marks +1 -0 Time

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Why is it important to treat seeds with the correct dosage of chemicals?

A. To ensure the chemical can be seen on the seed.
B. To avoid phytotoxicity and ensure effectiveness.
C. To make the treatment process faster.
D. To reduce the cost of the treatment.

Question No. 19 Marks +1 -0 Time

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Which method is most suitable for treating seeds with an uneven or rough surface to ensure uniform coverage?

A. Seed dusting
B. Seed pelleting
C. Seed soaking
D. Seed spraying

Question No. 20 Marks +1 -0 Time

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What is the importance of 'rhizobia inoculants' as a seed treatment for legumes?

A. They protect against fungal diseases.
B. They enhance nitrogen fixation.
C. They deter grazing animals.
D. They improve drought resistance.

Question No. 21 Marks +1 -0 Time

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The term 'phytotoxicity' in relation to seed treatment refers to:

A. The effectiveness of the treatment against pests.
B. The toxic effect of the treatment on the seed or seedling.
C. The ability of the plant to resist toxins.
D. The cost of the chemical treatment.

Question No. 22 Marks +1 -0 Time

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Which of the following is a benefit of using polymers in seed coatings?

A. They provide a direct source of nitrogen for the plant.
B. They improve the flowability of seeds in planting equipment.
C. They make the seed more palatable to birds.
D. They eliminate the need for fungicides.

Question No. 23 Marks +1 -0 Time

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What is the primary purpose of 'film coating' seeds?

A. To significantly increase the seed's weight and size.
B. To apply a very thin, uniform layer of active ingredients without altering the seed's shape.
C. To make the seed germinate more slowly.
D. To create a hard shell around the seed.

Question No. 24 Marks +1 -0 Time

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Hot water seed treatment requires precise control of:

A. Water pressure
B. Water color
C. Water temperature and duration of treatment
D. Water pH

Question No. 25 Marks +1 -0 Time

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A farmer wants to protect their corn seeds from both fungal diseases and early-season insect pests. What would be the most appropriate seed treatment approach?

A. A combination of fungicide and insecticide treatment
B. Only a fungicide treatment
C. Only an insecticide treatment
D. A simple water soak

Question No. 26 Marks +1 -0 Time

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Why are biological seed treatments considered a component of Integrated Pest Management (IPM)?

A. Because they are the only method used in IPM.
B. Because they are a non-chemical control method that can reduce reliance on synthetic pesticides.
C. Because they are the most expensive treatment option.
D. Because they only work in a laboratory setting.

Question No. 27 Marks +1 -0 Time

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What is the main risk associated with improperly dried seeds after a wet treatment process?

A. The seeds will become too hard to plant.
B. The treatment will lose its color.
C. The seeds may lose viability or be attacked by storage fungi.
D. The seeds will attract beneficial insects.

Question No. 28 Marks +1 -0 Time

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Which of the following is NOT a method of seed priming?

A. Hydro-priming
B. Osmo-priming
C. Bio-priming
D. Cryo-priming (freezing)

Question No. 29 Marks +1 -0 Time

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The 'slurry' method of seed treatment involves:

A. Applying a dry powder to the seeds.
B. Mixing the treatment chemical with water to form a paste-like substance that is then applied to the seeds.
C. Exposing the seeds to high temperatures.
D. Soaking the seeds in a nutrient solution for an extended period.

Question No. 30 Marks +1 -0 Time

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What is the primary function of a 'sticker' in seed treatment formulations?

A. To make the seeds stick together in the planter.
B. To improve the adhesion of the treatment product to the seed coat.
C. To make the seed taste bad to pests.
D. To provide a sticky trap for insects.

Question No. 31 Marks +1 -0 Time

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Which of the following is a potential disadvantage of chemical seed treatments?

A. They can have a negative impact on non-target organisms and the environment.
B. They are never effective against target pests.
C. They always reduce seed germination rates.
D. They are only effective for a few days after application.

Question No. 32 Marks +1 -0 Time

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What is the importance of 'seed invigoration'?

A. It refers to making the seed coat harder.
B. It describes the process of improving seed performance, germination, and seedling growth.
C. It is a method to sterilize the soil around the seed.
D. It is the process of coloring seeds for identification.

Question No. 33 Marks +1 -0 Time

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Why might a farmer choose to use 'seed pelleting' for small, irregularly shaped seeds like lettuce?

A. To make them easier to see in the soil.
B. To improve their taste.
C. To increase their nutritional value.
D. To make them uniform in size and shape for precision planting.

Question No. 34 Marks +1 -0 Time

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What is 'bio-priming'?

A. Priming seeds with extremely hot water.
B. A technique that combines biological treatment with seed priming.
C. The process of priming seeds with synthetic chemicals.
D. A method of drying seeds very quickly.

Question No. 35 Marks +1 -0 Time

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Which of the following is a contact fungicide?

A. Metalaxyl
B. Captan
C. Imidacloprid
D. Streptomycin

Question No. 36 Marks +1 -0 Time

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What is a major advantage of seed treatment over foliar spraying of pesticides?

A. Seed treatment uses a much larger volume of pesticide per acre.
B. Seed treatment provides protection for the entire life of the plant.
C. Seed treatment is a more targeted application, reducing the overall amount of pesticide released into the environment.
D. Foliar spraying is always less effective.

Question No. 37 Marks +1 -0 Time

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How does seed treatment contribute to food security?

A. By making crops taste better.
B. By ensuring a healthy and uniform crop stand, which is the foundation for good yields.
C. By eliminating the need for fertilizers.
D. By making all crops resistant to climate change.

Question No. 38 Marks +1 -0 Time

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What is the purpose of using a 'drum mixer' for seed treatment on a farm?

A. To heat the seeds to a specific temperature.
B. To ensure an even coating of the treatment material on all the seeds.
C. To wash the seeds before planting.
D. To sort the seeds by size.

Question No. 39 Marks +1 -0 Time

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Which nutrient is often included in seed treatments for legumes to aid in nodulation?

A. Nitrogen
B. Phosphorus
C. Potassium
D. Molybdenum

Question No. 40 Marks +1 -0 Time

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What is the 'lag phase' of seed germination, and how does priming affect it?

A. It is the final stage of germination; priming makes it longer.
B. It is the initial phase of water uptake; priming shortens it, leading to faster germination.
C. It is a period of dormancy; priming induces it.
D. It is the stage of radicle emergence; priming prevents it.

Question No. 41 Marks +1 -0 Time

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What is a key consideration when performing hot water treatment on seeds?

A. The age of the seed, as older seeds can be more sensitive to heat damage.
B. The color of the seed.
C. The brand of the seed.
D. The price of the seed.

Question No. 42 Marks +1 -0 Time

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Which of the following is an example of a systemic insecticide used for seed treatment?

A. Thiram
B. Captan
C. Imidacloprid
D. Copper hydroxide

Question No. 43 Marks +1 -0 Time

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The primary aim of seed coating is to:

A. Make the seed heavier.
B. Apply materials to the seed surface to improve handling and deliver active ingredients.
C. Change the genetic makeup of the seed.
D. Induce early flowering.

Question No. 44 Marks +1 -0 Time

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Why is it generally recommended to plant treated seeds and not store them for the next season?

A. The treatment will evaporate.
B. The effectiveness of the treatment can decline over time, and the seed's viability may also decrease.
C. The seeds will become immune to the treatment.
D. The color of the treatment will fade.

Question No. 45 Marks +1 -0 Time

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What does 'seed disinfestation' refer to?

A. Eradication of pathogens deep within the seed tissues.
B. The destruction of surface-borne organisms on the seed.
C. Improving the seed's ability to withstand drought.
D. Enhancing the seed's nutritional profile.

Question No. 46 Marks +1 -0 Time

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Which is a major benefit of using biological inoculants for seed treatment?

A. They provide instant pest knockdown.
B. They can improve nutrient availability and uptake by the plant.
C. They work in all soil types without exception.
D. They are visible to the naked eye, confirming treatment.

Question No. 47 Marks +1 -0 Time

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What is the role of polyethylene glycol (PEG) in osmopriming?

A. It acts as a direct nutrient source for the embryo.
B. It creates a solution with low water potential to control the rate of seed hydration.
C. It is a fungicide that kills pathogens.
D. It is a hormone that triggers rapid cell division.

Question No. 48 Marks +1 -0 Time

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What is a primary safety precaution when handling chemically treated seeds?

A. Washing them thoroughly with water before planting.
B. Wearing appropriate personal protective equipment (PPE) like gloves.
C. Tasting a small amount to check the chemical concentration.
D. Storing them in direct sunlight to neutralize the chemicals.

Question No. 49 Marks +1 -0 Time

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How does seed pelleting facilitate precision planting?

A. It makes the seeds magnetic.
B. It makes the seeds lighter.
C. It creates seeds of a uniform, standard size and shape that can be easily handled by mechanical planters.
D. It adds a strong fragrance to the seeds.

Question No. 50 Marks +1 -0 Time

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What is the 'active ingredient' in a seed treatment product?

A. The colorant that indicates treatment.
B. The polymer that binds the product to the seed.
C. The component of the formulation that is responsible for the desired effect (e.g., killing a fungus).
D. The water or solvent used in the formulation.

Question No. 51 Marks +1 -0 Time

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Why might a seed treatment include micronutrients?

A. To make the seed heavier for planting.
B. To provide the seedling with an essential nutrient boost during the critical early growth stages.
C. To act as a pesticide.
D. To change the color of the plant's flowers.

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