The viability of seeds is tested by

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(b) : Viability of seeds can be known by two methods: $(i)$ abilityto germinate, $(ii)$ testing their ability to respire. All viable seeds respire. Th

Vedclass · Accepted Answer

$2, 3, 5$ triphenyl tetrazolium chloride

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(b) : Viability of seeds can be known by two methods: $(i)$ abilityto germinate, $(ii)$ testing their ability to respire. All viable seeds respire. This can be tested by immersing a section of seed containing the embryo in $0.1\%$ solution of triphenyl tetrazolium chloride. The viable embryo will turn pink due to conversion of colourless triphenyl tetrazolium chloride into insoluble coloured dye called triphenyl formazone due to reduction.

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