The document discusses the effects of salt stress on crops, specifically the impact of sodium chloride on plant growth. It outlines an experiment comparing normal irrigation with a 5% sodium chloride solution, demonstrating that the latter leads to plant stress and eventual death. The findings highlight the toxicity of excessive salt in agricultural settings.

1. 085 SALT STRESS IN CROPS
Unwanted salts present in the soil or water will make the
plants more stressed and reduce the yield or complete
death of the crop
Sodium (Na) is not to be added for crop growth
MATERIALS REQUIRED
Pots (2)
Sodium chloride (or common salt)
Water

2. In TWO pots have a crop or plant of your choice
In one pot irrigate with normal water
In another pot irrigate with 5% of sodium chloride water
( 50g of sodium chloride (or common salt) dissolved in 1 litre of water)
water salt water

3. Observe the crop day by day for one week. In the pot irrigated with
sodium chloride water, the plant shows symptom of stress and
slowly dies indicating toxicity
water salt water