Detailed Explanation of Bitter Melon Seed Saving Methods and Technical Key Points

Bitter melon is one of the quality vegetables people enjoy eating. Doing a good job of selecting and saving bitter melon seeds is an important part of achieving a bumper harvest next year. The methods for selecting and saving bitter melon seeds are introduced below:

1. Isolation to prevent mixing. Bitter melon is a cross-pollinated crop. Other bitter melon varieties must be planted at least 2 kilometers away from the seed-saving field. Otherwise, different varieties can easily cross-pollinate naturally, making the saved seeds mixed and impure.

2. Artificial supplementary pollination. If bitter melon encounters rainy weather during the flowering period, cross-pollination is unfavorable, so artificial supplementary pollination is needed to increase the seed yield.

3. Save seeds during the peak fruiting period. Bitter melon seed saving should be carried out together with harvesting fruit for market. After the first 2 to 3 harvests of bitter melon, it begins to enter the peak fruiting period, and seed saving can then be carried out.

4. Select good seed plants. Plants that grow vigorously, are free of pests and diseases, bear many fruits, have well-formed fruit shapes, and possess the characteristics of the variety should be selected as seed plants.

5. Select seed fruits. Choose the 2 to 3 fruits closest to the base as seed fruits. Remove the remaining young and tender fruits as early as possible so that nutrients are concentrated on growing the seed fruits.

6. Harvest at the right time. When the seed fruits are fully mature but have not yet turned yellow, they should be harvested. Use a knife to cut about 5 to 7 cm deep at the stem end of the fruit and take out the seeds inside; the fruit can still be sold on the market. At this time, the fruit pulp has turned bright red, which is a sign of maturity.

7. Washing seeds and storage. After the bitter melon seeds are taken out, they should immediately be washed with clean water to remove the seed pulp. Spread the seeds out in the shade to dry, then put them into a loose cloth bag and store them in a ventilated, dry place. The seeds can also be placed in a glass jar; first put fresh rice husk ash about 3 to 5 cm thick into the glass jar, then put in the seeds, and cover them again with rice husk ash. Then store in a cool, ventilated place.