Yes, some lemon seeds float.
Based on the provided reference, it is stated that when preparing lemon seeds for planting, you should "soak seeds overnight in a bowl of water to soften the seed coat and discard any seeds that float." This instruction indicates that some lemon seeds will indeed float, and these are considered undesirable for planting.
Why Do Some Lemon Seeds Float?
The fact that some lemon seeds float suggests that these seeds are likely not viable. This could be due to several factors:
- Lack of Embryo Development: A seed that doesn't contain a fully developed embryo may be lighter and more likely to float.
- Damage or Decay: Seeds that are damaged, partially decayed, or hollow are less dense than healthy seeds and thus, more likely to float.
- Air Pockets: Small air pockets within the seed can increase its buoyancy, causing it to float.
Practical Implications for Planting Lemon Seeds
When preparing lemon seeds for planting, the floating test is a simple way to identify potentially non-viable seeds. Here’s how to approach it:
- Extraction: Carefully remove the seeds from the lemon fruit.
- Cleaning: Thoroughly clean the seeds to remove any pulp or sugars.
- Soaking: Place the seeds in a bowl of water and soak them overnight.
- Sorting: The next day, identify and discard any seeds that are floating.
- Planting: Plant only the seeds that have sunk to the bottom of the bowl, as they are more likely to germinate successfully.
Key Considerations
- Always use fresh seeds for the best germination rates.
- Discarding floating seeds increases your chances of successful germination.
- Citrus seeds should be planted as soon as possible after extraction because they do not tolerate drying out.
| Seed Condition | Likely Outcome |
|---|---|
| Seeds that sink | Likely to be viable |
| Seeds that float | Likely not to be viable |
