The desired varieties of economically useful crops are raised
by
(a) vemalisation
(b) mutation
(c) natural selection
(d) hybridisation

1 Answer

Answer :

(d) hybridisation

Related questions

Description : The desired varieties of economically useful crops are raised bya) Vernalization b) Mutation c) Natural selection d) hybridisation 

Last Answer :  d) hybridisation 

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 : 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 : The new varieties of plants are produced by (a) introduction and mutation (b) selection and introduction (c) selection and hybridization (d) mutation and selection.

Last Answer : (c) selection and hybridization

Description : In which of the following crops GM varieties are available for cultivation in India (A) Mustard (B) Cotton (C) Soybean (D) All of the above

Last Answer : (B) Cotton

Description : Mixed farming incorporates a mixture or combination of which of the following? a. Crops and Forest Trees b. Different Varieties of Crops c. Crops and Horticulture Plants d. Crops and Livestock e. None of these

Last Answer : d. Crops and Livestock

Description : Find out the correct sentence. Hybridisation means crossing between genetically dissimilar plants Cross between two varieties is called as inter speci

Last Answer : Find out the correct sentence. Hybridisation means crossing between genetically dissimilar plants Cross between two ... (iii) D. (iii) and (iv)

Description : Varieties of vegetables such as cabbage, broccoli and cauliflower have been produced from a wild cabbage species. Such process of producing new varieties of living organisms is called (1) Natural selection (2) Artificial selection (3) Speciation (4) Genetic drift.

Last Answer : (2) Artificial selection

Description : Industrial melanism is an example of (a) mutation (b) Neo-Lamarckism (c) Neo-Darwinism (d) natural selection.

Last Answer : (d) natural selection.

Description : 27. A ‘single step-large mutation’ is known as ... b) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Last Answer : c) Saltation

Description : 7. A ‘single step-large mutation’ is known as ... a) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Last Answer : c) Saltation

Description : _______________ acts to inhibit reproductive isolation. A) Mutation B) Natural selection C) Genetic drift D) Gene flow

Last Answer : D) Gene flow

Description : ‘Himgiri’ developed by hybridisation and selection for disease resistance against rust pathogens is a variety of (a) chilli (b) maize (c) sugarcane (d) wheat.

Last Answer : (d) wheat.

Description : In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called (a) evaluation and selection of parents (b) germplasm collection (c) selection of superior recombinants (d) cross-hybridisation among the selected parents.

Last Answer : (b) germplasm collection

Description : Breeding of crops with high levels of minerals, vitamins and proteins is called (a) somatic hybridisation (b) biofortification (c) biomagnification (d) micropropagation.

Last Answer : (b) biofortification

Description : Most of the wheat varieties are (A) Quantitative long day plants (B) Short day plants (C) Day neutral (D) None of these

Last Answer : (B) Short day plants

Description : Bonneville, Early Badger, Arkel are the improved varieties of (A) Frenchbean (B) Pea (C) Sunflower (D) Soybean

Last Answer : (B) Pea

Description : Which one of the following varieties has been selected to develop Narendra Aonla-6 variety ? (A) Chakaiya (B) Hathijhool (C) Banarasi (D) Narendra Aonla-6

Last Answer : (D) Narendra Aonla-6

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 : Varieties of Miscavi and PusaVisal are of which crop (a) Cotton (b) ]ute (c) Oat (d) Berseem

Last Answer : (d) Berseem

Description : Gynodioecious varieties of papaya produce – a) Only male plants b) Female and hermaphrodite c) Male and hermaphrodite plants d) Only female plants

Last Answer : d) Only female plants

Description : The sowing depth of dwarf wheat varieties is- (a) 6-7 cm (b) 2-3 cm (c) 4-5cm (d) 5-6 cm

Last Answer : (c) 4-5cm

Description : Which of the following process is not takes place in evolution of plants? (A)Crossing over (B) Mutation (C) Linkage (D) Coupling

Last Answer : (C) Linkage

Description : Animals if raised by the farmer himself can be a very cheap source of a) transport power b) cart powerc) farm power d) bullock power

Last Answer : c) farm power

Description : The boiling temperature of the water in the radiator is raised to abouta) 100°C b) 105°C c) 110° C d) 115° C

Last Answer : c) 110° C

Description : The quickest method of plant breeding is — a. Mutation breeding b. Back cross c. Heterosis breeding d. Selection

Last Answer : a. Mutation breeding

Description : Which of the following(s) is/are found in Genetic Algorithms? (i) evolution (ii) selection (iii) reproduction (iv) mutation (a) i & ii only (b) i, ii & iii only (c) ii, iii & iv only

Last Answer : (a) i & ii only

Description : Select the High Yielding Varieties of seed-crops developed under Green Revolution in India. (1) Rice, Wheat, Pulses, Oil seeds and Sugarcane (2) Maize, Black-gram, Jowar, Coffee arid Tea (3) Rice, Wheat, Jowar, Bajra, and Maize (4) Wheat, Rice, Sugarcane, Pulses and Maize

Last Answer : (1) Rice, Wheat, Pulses, Oil seeds and Sugarcane Explanation: The growth rates of area, production and yield of food grains in India can be divided into two broad periods the period ... Varieties of wheat, rice, pulses, oilseeds and sugarcane were development under Green Revolution in India.

Description : Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops 

Last Answer : c) Eliminate virus 

Description : Select the High Yielding Varieties of seed-crops developed under Green Revolution in India. (1) Rice, Wheat, Pulses, Oil seeds and Sugarcane (2) Maize, Black-gram, Jowar, Coffee arid Tea (3) Rice, Wheat, Jowar, Bajra and Maize (4) Wheat, Rice, Sugarcane, Pulses and Maize

Last Answer : Rice, Wheat, Pulses, Oil seeds and Sugarcane

Description : Seed Treatment with chemical? A. Plant Selection B. Nutrients Management C. Genetic Improvement D. None of these

Last Answer : A. Plant Selection

Description : Which of the following not belong to Post harvest handling of seed crop? A. Seed Selection B. Threshing C. Drying D. Grading

Last Answer : A. Seed Selection

Description : Recording of milk production in dairy (agriculture exams library) farm is done mainly for – a) Selection of good producer b) Increase in production of milk c) Ensuring quality of milk d) Quick selling of milk

Last Answer : a) Selection of good producer

Description : Selection of homozygous plant is (a) pure line selection (b) mass selection (c) mixed selection (d) introduction

Last Answer : (a) pure line selection

Description : Define what is the desired capability? Explain How is it useful in terms of Selenium?

Last Answer : The desired capability is a series of key/value pairs that stores the browser properties like browser name, browser version, the path of the browser driver in the system, etc. to determine the ... you want to run the test cases on a different browser with different operating systems and versions.

Description : To produce which crop you have to cultivate 16 crops ?

Last Answer : To cultivate radish, 16 cultivars are required.

Description : What are the special crops of environment zone-16 ?

Last Answer : a .

Last Answer : Horticultural crops are divided into 4 parts.

Last Answer : Wheat , lentils , barley , onion , beans etc.

Description : India rank first in the production of the following crops in the world: (A)Rice (B) Wheat (C) Soybean (D) Pigeon-pea

Last Answer : (D) Pigeon-pea

Description : Which of the following crops is thermo-insensitive? (A) Sunflower (B) Wheat (C) Rice (D) Jowar

Last Answer : (A) Sunflower

Description : Blue revolution is related with: (A) Crops (B) Energy source (C) Fish (D) Oilseeds

Last Answer : (C) Fish

Description : Which of the following crops has the largest area under transgenic globally? (A) Cotton (B) Soybean (C) Tobacco (D) Maize

Last Answer : (B) Soybean

Description : Contract farming consists of...... (A) hiring land by farmers on contract basis for cultivation (B) supply of agreed quantity of produce to agreed price to the company (C) company taking on ... and to give back to farmers (E) providing inputs by company to farmers for improving quality of produce

Last Answer : (C) company taking on lease basis farmers’ land for cultivation

Description : Which of the following crops is tolerant of soil on water salinity ? (A) Date-palm (B) Cabbage (C) Orange (D) Grapes (E) Peas

Last Answer : (A) Date-palm

Description : n the literature on the development of GMO crops, which one of the following crops is among those crops that have been designated as Orphan Crops ? (A) Soybean (B) Corn (C) Cowpea (D) Canola (E) None of these

Last Answer : (B) Corn

Description : Which one of the following commodities does fall within the scope of the activities of National Horticulture Mission in India ? (A) Tomato (B) Arecanut (C) Cashewnut (D) Coconut (E) All above horticultural crops

Last Answer : (E) All above horticultural crops

Description : Which one of the following crops is sensitive to salt as well as boron in soil and water ? (A) Grape (B) Sugar beet (C) Carrot (D) Cotton (E) None of these

Last Answer : (B) Sugar beet

Description : The hybrid of which one of the following crops was evolved by India using modern DNA techniques and released in February 2005 ? (A) Ricinus communis (B) Solgum vulgare (C) Pennisetum typhoides (D) Arachis hypogaea (E) India has not released any such hybrid so far

Last Answer : (A) Ricinus communis

Description : The National Agricultural Insurance Scheme in its first two years of operation envisaged to cover...... (A) all crops-grown by small and marginal farmers only (B) all crops-cultivated with ... of farmers (D) only horticultural crops (E) only seven commercial crops-grown under contract farming system

Last Answer : (B) all crops-cultivated with the help of crop loans only irrespective of the size of holding of the borrowers