Find the INCORRECT statement regarding the phenomenon of "Allelopathy" in plants.
Plants produce chemical compounds that help in growth of the plant
Plants produce chemical compounds that help in growth of the plant is correct.
Allelopathy is a biological phenomenon in which one plant releases chemical compounds (allelochemicals) through its roots, leaves or decaying litter that inhibit the germination, growth or survival of other plants nearby.
The chemicals act on neighbouring plants, not to promote the producer's own growth, so the statement that the compounds help in growth of the plant itself is incorrect.
The other statements are correct: root secretions blocking seed germination or growth of neighbouring plants is the core mechanism; suppressing neighbours reduces competition for water, light and nutrients; and the black walnut tree is the classic example, releasing juglone, which harms tomatoes, apples and many other plants.
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Important Questions from Botany
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Which of the following does NOT form an essential part of the process of photosynthesis?
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :
