NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Agriculture MCQs (Practice_Test 30 of 56)
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- What cultur should be given priority in groundnut cultivation?
- Azosp rilla
- Mycorrhiza
- Phosphobacteria
- rhizobia
- Which one of the following concentrated organic manures has maximum phosphorus content?
- Fish meal
- Sterameal
- Poultr manure
- Guano
- Match List I with List II and select the correct answer:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Agriculture MCQs (Practice_Test 30 of 56) List-I (Classes of fertiliser) List-II (Example of different classes) - Organic fertiliser
- Inorganic fertiliser
- Biofertiliser
- Slow release fertilizer
- Urea
- Isobutylidenediurea
- Ammonium sulphate
- Azolla
- 2-isloro-pyridene
- A
- B
- C
- D
- 1
- 2
- 3
- 5
- 1
- 3
- 4
- 2
- 2
- 1
- 5
- 4
- 5
- 1
- 4
- 3
- What is the effect of application of phosphatic fertilizer to a green manure leguminous cropon the availability of phosphorus to the succeeding crop?
- Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
- Green manur increases the availability in inorganic for to the next crop
- It does not affect the availability of phosphorus to succeeding crop
- It fixes the phosphorus through humus and reduces the availability
- The nitrogenous fertilizer manufactured in India which occupies the first place in production is
- Ammonium sulphate
- Ammonium phosphate
- Urea
- Calcium ammonium nitrate
- Which one of the following fertiliser is least hygroscopic?
- Urea
- Ammonium sulphate
- Ammonium phosphate
- Calcium ammonium nitrate
- Diammonium phosphate requirement for supplying 45 kg N and 115 kg P2O5 to one hectar peanut crop is
- 100kg
- 150kg
- 200kg
- 250kg
- Maximum absorption of water by roots takes place thr ugh the
- One of elongation
- Zone of maturation
- root hair
- root cap
- Long distance translocation of nitrogenous assimilations in plants occurs
- Through cambium only
- Mainly through the phloem
- Mainly through the xylem
- Equally through xylem, phloem and cambium
- Zinc, iron, copper boron, manganese and molybdenum ar called micronutrients because they are
- Nutrients of microscopic significance
- Nutrients which produce microscopic effects
- Essential nutrients but ar required in minute quantities
- Nutrients required by micro-ganisms
- Which one of the following often acts as the limiting factor in photosynthesis under Indian conditions?
- Sunlight
- Carbon dioxide
- Water
- Chlorophyll
- The strongest chemical agent for breaking dormancy is
- Potassium nitrate
- Gibberellins
- Ethylene
- Cumerin
- The optimum cardinal temperatur points for germination of rice seeds are
- 18 − 20° C
- 20 − 22° C
- 30-° C
- 37-° C
- All cytokinins ar derivatives of
- Cytosine
- Adenine
- Uracil
- Guanine
- Under normal aerobic conditions, pyruvic acid is oxidized to carbon dioxide and water in celldar organelles known as
- Golgi apparatus
- ribosome
- Chloroplast
- Mitochondria
- Interveinal chlorosis of the younger leaves of the plants is the characteristic symptom of
- Boron deficiency
- Zinc deficiency
- Iron deficiency
- Phosphorus deficiency
- The high yielding rust resistant wheat variety ‘Kalyan sona’ became susceptible to rust some year after its release and cultivation because of
- Variation in the environment
- Mutation in the host plant
- resurgence on the par of the pathogen
- Emergence of new races in the pathogen
- The first maize hybrid developed in India was
- Vikram
- Ganga-2
- Vijay
- Kissan
- What is the correct sequence of the following for the production of hybrid maize?
- Selfing selected open-llinated populations through several generations to produce homozygous inbred lines.
- Selecting desirable plants in openpollinated populations.
- Crossing chosen lines.
- Select the correct answer using the codes given below:
- 1,2 and 3
- 2,3 and 1
- 2, land 3
- 3,2 and 1
- Genetics is the study of
- Genes
- Gene Interaction
- Heredity and Variation
- DNA
- At the molecular level point mutations are due to
- Destruction of the bases
- Destruction of the double helix
- Shifting of a portion of the helix and bases
- Alterations of sequences of base in
- DNA
- The rice variety containing Dee-owoogen gene is
- Indrasan
- Basmati
- Tilak
- I. r. 8
- Specific combining ability of the parents should be high in order to develop
- Hybrids
- Composites
- Varieties
- Synthetics
- A population at equilibrium, developed from intermitting a number of inbred lines is called a
- Composite variety
- Synthetic variety
- Hybrid variety
- Pur line variety
- In sorghum, somatic chromosome number is 20. What would be its chromosome number in the endosperm?
- 10
- 20
- 30
- 40
- Heterosis is commercially exploited in
- Cross pollinated species
- Often cross-llinated species
- Self-llinated species
- Vegetatively propagated species
- In which one of the following crops maximum exploitation of hybrid vigour during last three decades has been done?
- Wheat
- rice
- Maize
- Cotton
- A hornozygous line developed by selffertilization in a cross-llinated crop is termed as
- Pureline
- Inbred
- Clone
- Mutant
- Ther ar four stages of development of Genetics up to 20th Century. The correct order of their occurrence is
- Darwinism, Lamarckism, Mendelism, Weismannism
- Lamarckism, Darwinism. Weismannism, Mendelism
- Lamarckism, Weismannism, Darwinism, Mendelism
- Weismannism, Lamarckism
- Darwinism, Mendelism
- A method of breeding most commonly used when the desired variation is required to be induced in a vegetatively propagated crop is
- Polyploidy breeding
- Pedigree method of breeding
- Mutation breeding
- Backcross method of breeding