Description : Select the mismatch. (a) Rhodospirillum – Mycorrhiza (b) Anabaena – Nitrogen fixer (c) Rhizobium – Alfalfa (d) Frankia – Alnus
Last Answer : (a) Rhodospirillum – Mycorrhiza
Description : Select the mismatch : (1) Rhodospirillum - Mycorrhiza (2) Anabaena - Nitrogen fixer (3) Rhizobium - Alfalfa (4) Frankia - Alnus
Last Answer : (1) Rhodospirillum - Mycorrhiza
Description : ___ is the example of associative, nonsymbiotic nitrogen fixing organism. (A) Rhizobium (B) Azorhizobium (C) Pseudomonas ‘ (D) Azospirillum
Last Answer : (C) Pseudomonas ‘
Description : Which of the following is free-living aerobic non- photosynthetic nitrogen-fixing bacterium? (a) Nostoc (b) Azospirillum (c) Rhizobium (d) Azotobacter
Last Answer : (d) Azotobacter
Description : Symbiotic nitrogen fixing bacteria is — a. Azotobacter b. Azospirillum c. Rhizobium d. None of these
Last Answer : c. Rhizobium
Description : All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia (a) can induce root nodules on many plant species (b) can fix ... its host plant through root hair deformation and stimulates cell proliferation in the host's cortex
Last Answer : (b) can fix nitrogen in the free-living state
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (a) Spirulina (b) Anabaena (c) Frankia (d) Tolypothrix.
Last Answer : (b) Anabaena
Description : A nitrogen-fixing microbe associated with Azolla in rice fields is (1) Tolypothrix (2) Spirulina (3) Anabaena (4) Frankia
Last Answer : (3) Anabaena
Description : Which of the following is also used as a Bio fertilizer? (1) Rhizobium (2) Azotobactar (3) Azospirillum (4) All of the above
Last Answer : (4) All of the above Explanation: Rhizobium, Azotobacter, Azospirillum and blue green algae are traditionally used as Bio fertilizers.
Description : An organism used as a biofertilizer for raising soybean crop is (a) Azotobacter (b) Azospirillum (c) Rhizobium (d) Nostoc.
Last Answer : (c) Rhizobium
Description : Select the correct group of biocontrol agents. (a) Nostoc, Azospirillium, Nucleopolyhedrovirus (b) Bacillus thuringiensis, Tobacco mosaic virus, Aphids (c) Trichoderma, Baculovirus, Bacillus thuringiensis (d) Oscillatoria, Rhizobium, Trichoderma
Last Answer : (c) Trichoderma, Baculovirus, Bacillus thuringiensis
Description : What culture should be given priority in groundnut cultivation? 1) Mycorrhiza 2) Rhizobium 3) Phosphobacteria 4) Azospirillum]
Last Answer : 2) Rhizobium
Description : What culture should be given priority in groundnut cultivation? a. Mycorrhiza b. Rhizobium c. Phosphobacteria d. Azospirillum
Last Answer : b. Rhizobium
Description : Which one of the following helps in absorption of phosphorus from soil by plants? (a) Glomus (b) Rhizobium (c) Frankia (d) Anabaena
Last Answer : (a) Glomus
Description : Nitrogen fixation in root nodules of Alnus is brought about by (a) Frankia (b) Azorhizobium (c) Bradyrhizobium (d) Clostridium
Last Answer : (a) Frankia
Description : Paulowniaceae - Is the Emporess Tree a nitrogen fixer?
Last Answer : Need Answer
Description : A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following ... you assign this plant? (a) CAM (b) Nitrogen fixer (c) C3 (d) C4
Last Answer : d) C4
Description : Gas being produced by paddy fields and involved in global warming is
Last Answer : Gas being produced by paddy fields and involved in global warming is A. Chlorine B. Methane C. `CO_(2)` D. `H_(2)S`
Last Answer : Gas being produced by paddy fields and involved in global warming is A. Chlorine B. Methane C. CO(2) D. H(2)S
Description : Paddy fields of India are located in the areas of ____annual rainfall
Last Answer : 100 cm
Description : Besides paddy fields, cyanobacteria are also found inside vegetative part of (a) Equisetum (b) Psilotum (c) Pinus (d) Cycas
Last Answer : (d) Cycas.
Description : Which gas is released from paddy fields? a) CO2 b) H2S c) CH4 d) NH3
Last Answer : c) CH4
Description : A power tiller is relatively more suitable for : A. Puddling of low land paddy fields with a rotary tiller B. Primary tillage of upland paddy fields with a rotary tillers C. Primary tillage with a mould board plough D. Farm transportation work
Last Answer : A. Puddling of low land paddy fields with a rotary tiller
Description : Rhizobium fixes atmospheric nitrogen/ha to the soil
Last Answer : Ans. 50-100 kg
Description : What is Azofication (a) It is also known as composite fixation of nitrogen. (b) It is also known as free fixation of nitrogen (c) It is also known as nitrogen fixed by Rhizobium bacteria ` (d) It is also known as nitrogen gain through rains or snow
Last Answer : (a) It is also known as composite fixation of nitrogen.
Description : A non-photosynthetic aerobic nitrogen fixing soil bacterium is (a) Rhizobium (b) Clostridium (c) Azotobacter (d) Klebsiella.
Last Answer : (c) Azotobacter
Description : One of the free-living, anaerobic nitrogen-fixeris (a) Beijerinckia (b) Rhodospirillum (c) Rhizobium (d) Azotobacter.
Last Answer : b) Rhodospirillum
Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification
Last Answer : (d) Anaerobic ammonium oxidation and denitrification
Description : Rhizobium fixes nitrogens in the roots of _____, so they don't need to be fertilized; in fact they add nitrogen to the soil. a. corn b. legumes c. wheat d. grasses e. oats
Last Answer : b. legumes
Description : ______ helps in fixation of nitrogen in rice field in association with root of Cycas plant. a) rhizobium b)fungus c)cyano bacteria d)bacteria
Last Answer : c)cyano bacteria
Description : Hormogonia are vegetative reproductive structure of: (a) Spirogyra (b) Ulothrix (c) Oscillatoria (d) Yeast
Last Answer : Ans. ((c))
Description : Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix
Description : Which one of the following is not used in organic farming? (a) Glomus (b) Earthworm (c) Oscillatoria (d) Snail
Last Answer : d) Snail
Description : Oxygenic photosynthesis occurs in (a) Oscillatoria (b) Rhodospirillum (c) Chlorobium (d) Chromatium.
Last Answer : (a) Oscillatoria
Description : Which among the following is not a prokaryote? (a) Saccharomyces (b) Mycobacterium (c) Nostoc (d) Oscillatoria
Last Answer : (a) Saccharomyces
Description : Which among the following is not a prokaryote ? (1) Saccharomyces (2) Mycobacterium (3) Nostoc (4) Oscillatoria
Last Answer : (1) Saccharomyces
Description : Frankia form symbiotic association with
Last Answer : Frankia form symbiotic association with
Description : "Mulching" is the term used for the process of (a) Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc. (b) Breaking down big pieces ... into small ones (c) Transplanting of paddy seedlings (d) Nitrogen fixation of soil by use of fertilizers
Last Answer : Ans: (a)
Description : In which form is nitrogen absorbed by paddy under waterlogged condition ? (A) NH 4 ion (B) Nitrate ion (C) NO 2 ion (D) N 2
Last Answer : (B) Nitrate ion
Description : Which chemical used as a ‘fixer’ in photography? -Do You Know?
Last Answer : Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate—commonly called hypo—and ammonium thiosulfate—commonly used in modern rapid fixer formulae.
Description : is there a grant for home repair for the ill.I have lukimea and i bought a fixer upper?
Last Answer : is there grant money for people with illnesses i bought a home before i knew i had lukemia and i am having a hard time finishing the house.
Description : The chemical used as a fixer in photography is - (1) sodium thiosulphate (2) sodium sulphate (3) borax (4) ammonium sulphate
Last Answer : (1) sodium thiosulphate Explanation: Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate — commonly called hypo — and ammonium thiosulfate — commonly used in modern rapid fixer formulae.
Description : Which chemical used as a ‘fixer’ in photography?
Last Answer : Sodium thiosulphate
Description : Compound which is used as a fixer in pho- tographic film?
Last Answer : Sodium Thio sulphate or Thio
Description : The chemical used as a fixer in photography is-----? A. sodium sulphate B. borax C. sodium thiosulphate (Answer) D. ammonium sulphate
Last Answer : C. sodium thiosulphate (Answer)
Description : Azotobacter and Bacillus polymyxa are the examples of (a) pathogenic bacteria (b) decomposers (c) symbiotic N2 fixer (d) non-symbiotic N2 fixer.
Last Answer : (d) non-symbiotic N2 fixer
Description : How does Rhizobium serve as a biofertilizer? -Biology
Last Answer : answer:
Last Answer : Rhizobium belongs to the state of Monra.
Description : Rhizobium trifoli is applied for
Last Answer : Ans. Berseem
Description : Rhizobium leguminosarum is applied for
Last Answer : Ans. Pea, Lathyrus and Lentil