Q. No.Which of the following proved effective for biological control of nematodal disease in plants?
1. Paecilomyces lilacinus
2. Pisolithus tinctorius
3. Pseudomonas cepacia
4. Gliocladium virens
1. Paecilomyces lilacinus
2. Pisolithus tinctorius
3. Pseudomonas cepacia
4. Gliocladium virens
Trichoderma harzianum has proved a useful microorganism for:
1. Biological control of soil-borne plant pathogens
2. Bioremediation of contaminated soils
3. Reclamation of wastelands
4. Gene transfer in higher plants
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Which one of the following pairs is wrongly matched?
1. Textile - amylase
2. Detergents - lipase
3. Alcohol - nitrogenase
4. Fruit juice - pectinase
Which of the following is not used as a biopesticide?
1. Xanthomonas campestris
2. Bacillus thuringiensis
3. Trichoderma harzianum
4. Nucleopolyhedrovirus
Select the correct statement from the following:
1. Biogas commonly called gobar gas is pure methane
2. Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
3. Biogas is produced by the activity of aerobic bacteria on animal waste
4. Methanobacterium is an aerobic bacterium found in rumen of cattle
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A common biocontrol agent for the control of plant diseases is
1. Trichoderma
2. Baculovirus
3. Bacillus thuringiensis
4. Glomus
The common nitrogen fixer in paddy fields is:
| 1. | Frankia | 2. | Rhizobium |
| 3. | Azospirillum | 4. | Oscillatoria |
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The most common substrate used in distilleries for the production of ethanol is
1. Molasses
2. Corn meal
3. Soya meal
4. Ground gram
Ethanol is commercially produced through a particular species of
1. Aspergillus
2. Saccharomyces
3. Clostridium
4. Trichoderma
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