Agriculture One Liner (Part-3)
- Theory of evolution was given by- Charles Darwin.
- Idea of gas exchange takes place in photosynthesis was given by- Priestley (1772).
- Who recognized the participation of chlorophyll and light in the photosynthesis process- Ingenhouz (1779).
- Chlorophyll pigments are of two types- Chlorophyll “a” (its occurrence is universal in green plants) and Chlorophyll “b” (present in higher plants and in green algae but absent in red algae).
- Law of conservation of energy and idea of organic synthesis and energy transformation proposed by- Robert Mayer.
- Photosynthetic is simply- oxidation reduction process.
- Absorption Spectrum of photosynthesis is- Blue and red.
- Dark reaction was discovered by- Blackman (Also known as Blackman reaction or Calvin cycle).
- The main site for dark reaction of photosynthesis is- Stroma.
- The evaporation of water from plants is called- Transpiration.
- Light reaction is also known as- Hill reaction.
- In photosynthesis, the solar energy converts into- Chemical energy.
- Highest water use efficiency in order- CAM>C4>C3.
- Photosynthetic rate is highest in- C4
- Sugar found in germinating seeds- Maltose.
- The sweetest sugar among all sugars is- Fructose.
- Warburg effect- Otto warburg (1920) found that photosynthesis in algae was inhibited by oxygen and such effect is found in all C3 plants, which is called Warburg effect.
- The term “OSMOSIS” was first observed by- Jean Antoine Nollet (1748).
- Shrinkage of protoplasm due to outward flow of water in a hypertonic solution is called- Plasmolysis (excessive use of fertilizer in the soil kill the plant due to plasmolysis).
- The term Imbibition was coined by- Sachs.
- Root pressure word was coined by- Stephan Hales.
- Father of plant Physiology- Julius Sachs.
- Low concentrate solution is called- Hypotonic solution, strong or higher concentrate solution is called- Hypertonic solution, neither weak nor strong solution is called- Isotonic solution.
- Soil less cultivation of plants is known as- Hydroponics.
- Plants grow well in sand are called- Psammophytes.
- Rate of transpiration is determined by- Potometer.
- The light intensity at which photosynthetic intake of CO2 is equal to the respiratory output of CO2 is called- Compensation point.
- The loss of sap (water) from the injured parts of plants is called- Bleeding.
- The exudation of water with salt and minerals through hydathode (structure present at tips of veins of leaves) is called- Guttation.
- Approximately 90% of the world photosynthesis is carried out by- Marine and fresh water algae.
- Net production of ATP in Glycolysis is- 2.
- The final product of glycolysis is- Pyruvate.
- Growth rate is measured by- Auxanometer & Cresco graph.
- Photoperiodism term was coined by- TD Lysenko (1920).
- The term auxin was used by- Frits went (Holland) 1905.
- Apical Bud dominance is caused by which hormone- Auxin.
- Sugarcane ripener- Ethaphon, Glyphosate.
- Which hormones is used as a herbicide- Auxin.
- Accumulation of hormone during stress is- Proline.
- The hormone related to drought tolerance- Absicic acid (ABA).
- Growth retardant hormone- Cycocel (CCC), Maleic hydrazide.
- Dormancy breaker- Cytokinin/Kinetin.
- The process of breaking seed dormancy of moist seed by low temperature treatment is called- Stratification.
- Fruit ripening hormone is- Ethylene.
- Lodging preventer hormone- Chlormequet.
- Plant cell enlarger- IAA, IBA.
- Nutrient evolves in the biosynthesis of IAA- Zn.
- Shedding of plant parts is due to- ABA hormones.
- The most widely used auxin herbicides are- 2-4-D, 2,4,5-T’ MCPA.
- Sucker control in tobacco is done by- Maleic hydrazide.
- Root promoting hormones is- IBA.
- The precursor of IAA is- Tryptophane.
- Synthesis of IAA in plants requires- Zinc.
- The term phytohormone for hormones of plants is suggested by- Thimann (1948).Read…PLANT HORMONES- FACTS, TYPES & EFFECTS
- The term genetic resource was coined by- Frankel.
- Mendel Paper entitled “Experiments in Plant Hybridization” was presented in German Language in two papers in 1865 (Feb 8 and march 8).
- Mendel Paper published in the annual proceeding of society in- 1866.
- The term “Genetics” was coined by- Bateson (1905).
- The term gene, genotype and phenotype were coined by- Johannsen in 1903.
- Single gene affecting more than one character is called- Pleiotrpy.
- Germplasm theory was proposed by- August Weismann.
- Operon model of gene regulation (Operon concept) was discovered by- Jacob and Monad 1961.
- The term chromosome was coined by- Waldeyer in 1888, but it was first discovered by Strausburger in 1875.
- One gene one enzymes hypothesis was proposed by- Beadle and Tatum (1941).
- First time gene was divided into cistron, muton and recon by- Benzer (1955).
- Sex chromosomes are also known as- Allosomes.
- Characters which express in one sex only is- Sex limited traits.
- Crossing over occurs in- Pachytene stage.
- The tendency of two or more genes to remain together in the same chromsome during inheritance is referred to as- Linkage.
Read…LINKAGE AND CROSSING OVER-AN OVERVIEW - Chiasma type theory of crossing over was proposed by- Janssens.
- Genic balance system of sex determination was proposed by- Bridge in 1922.
- Monogenic sex determination is found in- Asparagus, Papaya, maize, spinach etc.
- The homozygous progeny of a self-pollinated homozygous plant is known as- Pure lines.
- The concept of pure lines theory was developed by- Johannsen (1903).
- Breeding method for self-pollinated crops are- Pure line selection, Mass Selection, Progeny selection, Bulk Method, Pedigree method, single seed descent method, Back cross Method.
- The record of ancestry of an individual selected plant for its various generation is called- Pedigree.
- A multiline variety is a mixture of- Several pure lines.
- Bulk method was first used by- Nelson Ehle in 1908.
- In pure line Theory, Johannsen was working on- Princess variety of Rajma.
- Mass Pedigree Method was proposed by- Harrington in 1937.
- The oldest method of selection is- Mass Selection.
- Progeny test was developed by- Louis de Vilmorin, hence also called Vilmorin isolation principle.
- Single seed Descent method applied for the first time in oat in 1965 by- Graphius.
- The term recurrent selection was coined by- Hull in1945.
- The use of synthetic varieties for commercial cultivation was first suggested in maize by- Hayes and Garber (1919).
- Synthetic varieties are maintained by- Open Pollination
- A synthetic variety can be developed from- Inbreeds, clones and open pollinated varieties.
- The general or basic concept in the development of synthetic varieties is- Exploitation of hybrid vigour.
- The concept of disruptive mating and selection was developed by- Mather (1953) and Thody (1958).
- The Concept of dialed selective mating system was originally developed by- Jonsen in 1970.
- The heterosis is also known as- Hybrid vigour.
- The term heterosis was first used by- Shull in 1914.
- Dominance theory was proposed by- Devenport in 1908.
- The resistance of host to the particular race of a pathogen is known as- Vertical resistance.
- Vertical resistance is governed by- One or few genes.
- The resistance of host to the all-race of a pathogen is known as- Horizontal resistance.
- The concept of gene for gene hypothesis was first developed by- Flor in 1946.
- The disease resistance is governed by- Several genes.
- Who developed the concept of vertical and horizontal resistance- E. Vender Plank (1963).
- Father of genetic engineering is- Pual Berg.
- Father of plant tissue culture- Haber land.
- Polymerase chain reaction (PCR) was developed by- Karl Mullis (1980).
- Golden rice was developed by- Ingo Potrykus and peter beyer (1990).
- The plant part which is used for regeneration is called- Explant.
- A mass of regenerated cells culture medium is called- Callus.
- The suspension of free cells of callus in a liquid medium is known as- Suspension culture.
- The regeneration capacity or ability of a plant cell to develop into whole plant is known as- Totipotency.
- The process of formation of somatic embryos from callus is called- Embryogenesis.
- The process of differentiation of shoot & root from the somatic embryos is called- Organogenesis.
- Regeneration of whole plant from anther is called- Anther culture.
- Haploid are developed by- Anther culture.
- The biotechnology applied to agriculture process is known as- Industrial Biotechnology.
- The first genetically modified food product was Tomato, which was transformed to delay its ripening.
- M-RNA is primarily used for- Transcription of DNA.
- The most abundant form of RNA is- r-RNA (80%).
- RFLP stands for- Restricting fragment length polymorphism.
- Research in the area of tissue culture was first stared in India at- Department of Botany, DU in 1960.
- National bureau of plant genetics resources is situated at –New Delhi.
- The project on Indian mustard oil with higher b-carotene is initiated by- TERI (Energy and Research institute).
- A genotype developed by the process of genetic engineering is called- Transgenic.
- The technique of genetic engineering which is used to make several identical copies of a gene is called- Gene cloning.
- Which soil borne bacterium is used to develop transgenic plants- Agrobacterium tumefaciens.
- In potato, the protein quality has been improved by- Transferring serum albumin gene from human.
- In tobacco, cold resistance power has been achieved by transferring gene from- Arabidopsis thaliana.
Read also…
Agriculture One Linear (Part-1)
Agriculture One Linear (Part-2)
Very useful
Thanks Rahul, share it to your circle and juniors seeking free materials for agriculture competitive exams.