Plant Science and Agriculture
Covers plant biology, plant pathology, mycology, soil science, and agricultural practices
Questions
Which of the following plant diseases is caused by fungi?
- Mosaic
- Leaf curl
- Yellow vein
- Late blight
Which of the following fungi secretes the poisonous fluid called aflatoxin that causes contamination of food?
- Rhizopus stelonifer
- Penicillium camemberti
- Macrophomina phaseoli
- Aspergillus flavus
- Mucor musedo
Edible mushrooms can be cultivated in beds made of
- kitchen waste
- straw waste
- animal dung
- cotton waste
Which of the following pairs is not correctly matched?
- Pineapple : Ananas comosus
- Coriander : Coriandrum sativum
- Coconut : Cocos nucifera
- Lotus : Citrus reticulata
- Tomato : Lycopersicus
Which of the following is the causative agent of citrus canker?
- Fungi
- Virus
- Bacteria
- Protozoa
- Amoeba
Mycorrhiza is the term applied to indicate the association of
- bacteria with the roots
- bacteria with the stem
- fungus with the roots
- fungus with the stem
How do cyclones affect the fertility of soil?
- They donot affect the fertility of the soil.
- The fertility of soil is reduced.
- The fertility of soil is increased.
- None of these
Withering is a process to
- reduce the moisture content in tea leaves
- steam the tea leaves
- oxidise the tea leaves
- boil the tea leaves
In dicot seed, the outer layer is called testa and the inner layer is known as
- torrent
- cotyle
- tegma
- raphe
For how many years is a land left fallow after the crop is harvested in swidden agriculture?
- 1 to 3 years
- 5 to 10 years
- 12 to 18 years
- 20 to 24 years
Hereditary material in TMV is
- dsDNA
- ssDNA
- ssRNA
- dsRNA
Regular use of _____________ increases the acidity of soil.
- super phosphate of lime
- ammonium sulphate
- potassium nitrate
- urea