Which of the following symbiotic association is not useful as biofertilizer

  • A
    Rhizobium and leguminous roots
  • B
    Algae and fungi
  • C
    Azolla and Anabaena
  • D
    Roots of higher plants and fungi

Similar Questions

Which of the following is used as biofertiliser?

$I.$ Cyanobacteria

$II.$ Yeast

$III.$ Symbiotic bacteria

$IV.$ Free living bacteria

Choose the correct option

$VAM $ is important for

Aquatic fern which is an excellent biofertilizer

  • [AIPMT 2000]

Root nodules for nitrogen fixation of a non-leguminous tree possess

Which of the following is common to Azospirillum, Anabaena, Nostoc and Oscillatoria