Correct option is A
The correct answer is: A) Up to 2 dS/m
Explanation:
The critical value of soil electrical conductivity (ECe) for seed germination is generally considered to be up to 2 dS/m. ECe is a measure of the salinity in the soil, and higher salinity can adversely affect seed germination and seedling growth.
The critical value of soil electrical conductivity (ECe) for seed germination is generally considered to be up to 2 dS/m. ECe is a measure of the salinity in the soil, and higher salinity can adversely affect seed germination and seedling growth.
When the ECe exceeds this value, the osmotic pressure in the soil increases, making it more difficult for seeds to absorb water, thus hindering germination.
Information Key Points:
Higher ECe values indicate increased soil salinity, which can limit water availability to the seeds.
Germination rates decrease as the ECe rises above this threshold due to the negative effects of salinity stress.
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