.In functional allelopathy a). Toxic substances are released as such from the plants b). A precursor is released and is converted into active substances by some microorganisms c). No release of any toxic substance d). release of nitrogen from nodule of legume takes place

.In functional allelopathy
a). Toxic substances are released as  such from the plants
b). A precursor is released and is  
converted into active substances  
by some microorganisms
c). No release of any toxic substance
d). release of nitrogen from nodule of  legume takes place
by

1 Answer

Answer :

b). A precursor is released and is  
converted into active substances  
by some microorganisms
by

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