Seed Extraction Yield & Saleable Seed from Fruit

Total seed = fruit weight × seed yield per kg of fruit. Only the germinable fraction is saleable, so viable seed = total seed × germination percentage. The value follows from the price per kg or per gram of seed. This tool turns your fruit weight, seed yield and germination into the total seed, viable seed and value at once.

Only a few grams per kilogram for most vegetables — tomato gives roughly 3–5 g/kg of fruit, brinjal a little more, papaya and cucurbits vary by type. Seed is a small fraction of fruit weight, which is why seed production is priced per gram or per kg of seed rather than per kg of fruit. Enter the figure for your crop.

Buyers pay for seed that will actually grow. Seed lots are sold against a germination standard, so the saleable quantity is the total seed times its germination percentage — the rest is rejected or downgraded. A high germination percentage is the difference between a premium lot and an unsellable one, so it is central to the value.

Vegetable seed producers who extract seed from ripe fruit — tomato, brinjal, chilli, papaya and cucurbits (pumpkin, gourds, melon, cucumber). These are wet-extracted crops where seed is separated from the pulp of ripe fruit, fermented or washed, then dried and cleaned. The same yield-per-kg approach fits any of them.

For pulpy fruit, seed is scooped with the surrounding pulp, often fermented briefly to loosen the gel coat (as with tomato), then washed, floated to remove light empty seed, and dried to safe moisture. Good extraction keeps germination high and removes immature seed, which is why technique drives both yield and quality.

Fruit ripeness and maturity at harvest, variety, growing conditions, and extraction and drying technique all matter. Fully ripe fruit gives more mature, germinable seed; over-fermentation or hot drying can kill the embryo. Field roguing and isolation also protect genetic purity, which a seed buyer values alongside germination.

Multiply the viable (germinable) seed by your price per kg or per gram of seed. Certified or hybrid seed commands far more than grain, which is why seed production can be a high-value use of the same fruit. The tool gives the value directly and works across 8 currencies.

Yes — enter the seed yield per kg of fruit and the germination percentage for your crop, the fruit weight in your preferred unit, and your currency. The total seed, viable seed and value follow for tomato, brinjal, papaya, cucurbits and other wet-extracted vegetables.

They are solid planning figures. Real yields vary with variety, fruit maturity, season and extraction skill, and germination is only known after a proper test. Run a sample, weigh the cleaned dry seed and test germination to calibrate — seed yield planning is about a reliable estimate, then confirm by lot testing.