Question

The physiological disorder in cotton known as 'Parawilt' or 'Sudden Wilt', which appears rapidly after a heavy irrigation following a prolonged dry spell, is primarily caused by?

A Fungal root rot initiated by waterlogging
B A severe shock to the root system's osmotic balance and impaired water conduction
C Sudden infestation of whiteflies attracted by humidity
D Toxic levels of accumulated nitrate in the leaves
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