Consider the following statements about Azolla,
Which of the above statements is/ are correct:
Consider the following statements about Azolla,
Which of the above statements is/ are correct:
The correct option is D None of the above
Azolla is a floating fern and belongs to the family of Azollaceae. Azolla hosts a symbiotic blue green algae, Anabaena azollae, which is responsible for the fixation and assimilation of atmospheric nitrogen. Azolla, in turn, provides the carbon source and favourable environment for the growth and development of the algae.
Azolla is easy to cultivate and can be used as an ideal feed for cattle, fish, pigs and poultry, and also is of value as a bio-fertilizer for wetland paddy. It is popular and cultivated widely in other countries like China, Vietnam, and the Philippines, but has yet to be taken up in India, in a big way. Dairy farmers in South Kerala and Kanyakumari have started to take up its cultivation.
None of the above
Azolla is a floating fern and belongs to the family of Azollaceae. Azolla hosts a symbiotic blue green algae, Anabaena azollae, which is responsible for the fixation and assimilation of atmospheric nitrogen. Azolla, in turn, provides the carbon source and favourable environment for the growth and development of the algae.
Azolla is easy to cultivate and can be used as an ideal feed for cattle, fish, pigs and poultry, and also is of value as a bio-fertilizer for wetland paddy. It is popular and cultivated widely in other countries like China, Vietnam, and the Philippines, but has yet to be taken up in India, in a big way. Dairy farmers in South Kerala and Kanyakumari have started to take up its cultivation.
