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Pinus seed cannot germinate and establish without fungal association. This is because

Option: 1

its embryo is immature


Option: 2

it has obligate association with mycorrhizae


Option: 3

it has very hard seed coat


Option: 4

its seed contains inhibitors that prevent germination


Answers (1)

best_answer

Fungus associated with roots of Pinus increased minerals & water absorption for the plant by increasing surface area. It also protects the seedling from soil borne disease. Therefore, mycorrhizal association is obligatory for Pinus seed germination.

So, the correct answer is 'It has obligate association with mycorrhizae'

Posted by

Deependra Verma

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