Seed treatment is done to control— a) Soil-borne disease b) Air-borne disease c) Seed-borne disease d) None of these

1 Answer

Answer :

c) Seed-borne disease

Related questions

Description : Seed treatment is done to control— (A) Soil-borne disease (B) Air-borne disease (C) Seed-borne disease (D) None of these

Last Answer : (C) Seed-borne disease

Description : The soil, air and seed borne disease of wheat

Last Answer : Ans. Kernal bunt (Neovossia indica)

Description : Covered smut of barley is a disease of— (A) Externally seed-borne (B) Internally seed-borne (C) Air-borne (D) None of these

Last Answer : (B) Internally seed-borne

Description : Loose smut of wheat is — borne a. Internally seed borne b. Soil borne c. Air borne d. Externally seed borne

Last Answer : a. Internally seed borne

Description : Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA

Last Answer : Ans. ((d))

Description : Seed treatment with Vitavex is the main controlling method of a) Loose smut b) Rust c) Downy mildew d) All of these 

Last Answer : d) All of these 

Description : Which of the following is not a seed borne disease? (a) Redrot of sugarcane (b) Potato mosaic (c) Brown leaf spot of rice (d) Black gram of cotton

Last Answer : Ans: (b)

Description : Plant quarantine method is useful only when pathogen is — a. Wind borne b. Seed transmitted c. Soil inhabitant d. Vector transmissible

Last Answer : b. Seed transmitted

Description : Loose smut is (a) Internally seed borne (b) Externally seed borne (c) Air borne (d) Water borne

Last Answer : (a) Internally seed borne

Description : Treatment of the hazardous substances in the environment with the help of living organisms is called as a. Bioremediation b. Waste management c. Waste control d. Biodegradation

Last Answer : a. Bioremediation

Description : Pudding is done to a) Reduce percolation of water b) Pulverise and levelling soil c) Kill weeds D) All of the above 

Last Answer : D) All of the above 

Description : The soil borne disease of rice

Last Answer : Ans. Sheath blight of rice (Rhizoctonia oryzae)

Description : Trichoderma harzianum has proved a useful microorganism for (a) gene transfer in higher plants (b) biological control of soil-borne plant pathogens (c) bioremediation of contaminated soils (d) reclamation of wastelands.

Last Answer : (b) biological control of soil-borne plant pathogens

Description : Spraying of DDT produces pollution of a) Air b) Air and Water c) Air and Soil d) Air, Water and Soil. 

Last Answer : d) Air, Water and Soil.

Description : The air borne disease of rice

Last Answer : Ans. Rice Blast (Pyricularia oryzae)

Description : Which of the following is an air-borne disease? (1) Measles (2) Typhoid (3) Pink eye (4) None of the above

Last Answer : (1) Measles Explanation: Airborne diseases are the infections spread by airborne transmissions including Chickenpox, Anthrax, Influenza, Measles, Smallpox, Cryptococcosis and Tuberculosis.

Description : Gnathostomiasis is important _________zoonosis of public health significance. C A. Air -borne B. Soil -borne C. Food -borne D. None of these

Last Answer : Food -borne

Description : What is the seed after fertilization ?

Last Answer : After fertilization, the egg becomes a seed.

Description : What is a seed bag ?

Last Answer : Plant body cells change to form a germ-carrying organ, called a granule sac.

Description : Consider the following statements: (1) The seed of pea is exalbuminous (2) The fruit of peach is drupe (3) The seed of tomato is albuminous (4) The fruit of coconut is berry

Last Answer : Ans. ((b))

Description : Consider the following statements associated with the germination of an angiospermous seed: (1) As the seed gets hydrated and germinates, enzymatic activity is increased (2) The respiration ... The increase in the respiratory rate continues till senescence (4) Rate of enzymatic activity decreases

Last Answer : Ans. ((b))

Description : In germinating castor seed the RQ is (a) One (b) More than one (c) Less than one (d) Infinite

Last Answer : Ans. ((c))

Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Last Answer : Ans. ((a))

Description : The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because: (a) Hybrid vigour is not long standing due to inbreeding ... (c) It is always associated with 4ncreased heterozygosity (d) Government has accepted Dunkel's proposals

Last Answer : Ans. ((a))

Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Last Answer : c) seed is naked

Description : Describe the various outgrowths of seed.

Last Answer : Ans: The outgrowths of seed are Caruncle and Aril. Caruncle: It is developed from integumentary cells of micropylar region. It is spongy and helps in absorbing water during seed germination. It is seen in ... commonly called as mace and is used as spice. In Pithecalobium, it is edible and spongy. 

Description : The instrument, which is used for sowing of seed with fertilizer together at a time, is a)Seed drill b) Dibbler c) Seed sowing behind plough d) Ferti-cum Seed drill

Last Answer : d) Ferti-cum Seed drill 

Description : Cryopreservation is a technique used for a) Crystallization of food b) Food packing c) Seed saving d) Preservation of excess production of vegetables

Last Answer : c) Seed saving

Description : .Consider the following four statements whether they are correct or wrong. A. The sporophyte in liverworts is more elaborate than that in mosses. B. Salvinia is heterosporous. C. The life-cycle in all seed-bearing plants is diplontic ... are (a) A and C (b) A and D (c) B and C (d) A and B

Last Answer : (b) A and D

Description : Artificial ripening of fruits is accomplished by treatment with: (a) Sodium chloride (b) IAA (c) Ethylene gas (d) Kinetin

Last Answer : Ans. ((c))

Description : In bioremediation, bio-films are usually used a. At the source of pollutant b. After collection of pollutant c. After treatment of pollutant d. Before pollutant is produced

Last Answer : a. At the source of pollutant

Description : Azotobacter and Beijerinckia are the examples of (a) Symbiotic nitrogen-fixers (b) Non-symbiotic nitrogen-fixers (c) Ammonifying bacteria (d) Disease causing bacteria

Last Answer : Ans. ((b))

Description : Minamata disease is due to pollutant a) Lead b) Mercury c) Hydrogen Sulphide d) Sulphur dioxide

Last Answer : b) Mercury

Description : Itai-Itai disease is due to the toxicity of a) Lead b) Cadmium c) Strontium d) Tin.

Last Answer : b) Cadmium

Description : A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop 

Last Answer :  c) Selection

Description : Aims of plant breeding are to produce a) Disease-free varieties b) High-yielding varieties c) Early-maturing varieties d) all of the above

Last Answer : d) all of the above

Description : The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod

Last Answer : Ans. ((d))

Description : Thermal algae can live in: (a) Saline soil (b) Hot water streams of 70°C (C) Deserts (d) Snow balls

Last Answer : Ans. ((b))

Description : Soil salinity is measured by: (a) Potometer (b) Porometer (c) Conductivity meter (d) Calorimeter

Last Answer : Ans. ((c))

Description : Insectivorous plants grow in: (a) Nitrogen rich soil (b) Nitrogen deficient soil (c) Potassium deficient soil (d) Carbohydrate rich soil

Last Answer : Ans. ((b))

Description : Minerals in soil body come from a. Weathering of rocks b. Wind and water c. Rains d. Dead organic remains

Last Answer : a. Weathering of rocks

Description : The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil a) Mulching b) Desertification c) Incineration d) Leaching

Last Answer : d) Leaching

Description : Water logging of soil makes it physiologically dry because- (a) This condition does not allow the capillary force to work b) this condition does not allow oxygen to enter the soil C) both (a) and (b) d) none of these 

Last Answer : b) this condition does not allow oxygen to enter the soil

Description : A low branch with a node is bent down and covered with soil in a) Marcotting b) Layering c)Cutting d) Budding

Last Answer : b) Layering

Description : Mycorrhizae is associated with the following a) Formation of root nodules b) Hyphae penetrating the soil c) Found mostly in lower plants d) Soil erosion

Last Answer : a) Formation of root nodules

Description : Consider the following statement: The ex situ conservation of genetic resources can be done through: (1) Tissue culture practices (2) Maintenance of sanctuaries (3) The establishment of germplasm banks (4) The establishment of national parks

Last Answer : Ans. ((d))

Description : The study of past geological plant life is done in branch called as ….. a)Botany b)Paleobotany c)History d)Anthropology

Last Answer : b)Paleobotany

Description : Among all insects the maximum number of enteromphily is done by

Last Answer : Among all insects the maximum number of enteromphily is done by – Honey bees

Description : Layering can be done on plants such as a) Bulbs b) bougainvillea c) Sugar cane d) Oleander

Last Answer : b) bougainvillea