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Genetics and Plant Breeding
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According to Harrington's thumb rule

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Correct Answer: Option D
According to Harrington's thumb rule, all the given options are correct that are:
a. For every decrease of 1 % in seed moisture, the lifetime of the seed is doubled.
b. For every decrease of 5°C in storage temperature the lifetime of the seed gets doubled.
c. The second condition is applicable when the storage temperature is between 0°C and 50°C.
HARRINGTON'S RULE: Seed longevity decreases by one-half for every 1% increase in moisture content or every 10°F (6°C) increase in temperature.
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