Which of the following is the major type of dehiscence?
A
Poricidal
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B
Longitudinal
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C
Valvular
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D
All of the above
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Solution
The correct option is C All of the above A) Poricidal dehiscence is shown in plants in which anther shed their pollen via terminal aperture or pore. ex-Solanaceae B) Longitudinal dehiscence is shown in plants in which the pores are arranged only along one longitudinal line by vertical slits.
ex-Maize. C) In valvular dehiscence dispersal line or bursting region is present throughout the anther from valves to replum.
ex-Berries. So the correct option is 'All of the above'