What does lemon juice do to the germination of radish seeds?

The effect of lemon juice on radish seed germination can vary depending on the concentration and duration of exposure. In general, here's what might happen:

Low Concentration and Short Exposure:

Stimulation: A mild concentration of lemon juice (diluted with water) and a short exposure (for example, soaking seeds for a few minutes or hours) may have a stimulatory effect on radish seed germination. The mild acidity of lemon juice can break down some of the seed's outer layers and enhance water uptake, leading to faster germination.

Enhanced Nutrient Availability: Lemon juice contains citric acid, which can chelate certain minerals in the soil, making them more available for uptake by the seeds. This can potentially improve the seeds' access to essential nutrients, aiding germination and early growth.

Medium Concentration and Moderate Exposure:

Inhibition: A higher concentration of lemon juice or a longer exposure time can have an inhibitory effect on radish seed germination. The acidity of lemon juice can become too strong for the delicate embryo within the seed, causing damage or even killing the seed. The high acidity may also alter the pH of the soil, which could affect seed germination and root development.

Delayed Germination: Even if the seeds manage to germinate, their growth and development may be affected by the exposure to lemon juice. Some seeds might show delayed germination or reduced vigor compared to seeds not treated with lemon juice.

High Concentration and Long Exposure:

Seed Damage: Prolonged exposure to concentrated lemon juice or excessive amounts can severely damage radish seeds. The high acidity can cause irreversible damage to the seed's embryo and prevent germination altogether.

Overall, it's important to use lemon juice cautiously when attempting to influence radish seed germination. While a mild concentration and short exposure might have some benefits, it's essential to avoid using too much lemon juice or exposing the seeds for too long to prevent adverse effects.