For the pollen tube to emerge out of the germ pore, which of the following element is required?
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a
Nitrogen
b
Sulphur
c
Boron
d
Molybdenum
answer is C.
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Detailed Solution
Boron is required for uptake and utilization of Ca2+, membrane functioning, pollen germination, cell elongation, cell differentiation and carbohydrate translocation.