A Detailed Guide to Seed Selection, Seed Saving and Seedling Raising Methods for Sweetheart Fruit

Sweetheart fruit is also called Jin Ling Zi (golden bell), and eating it has the function of boosting qi and nourishing blood, and it is grown in many regions. So when growing sweetheart fruit, how do you select and save seeds? What seedling raising methods are there? Let's find out below.

How do you select and save sweetheart fruit seeds?

When buying sweetheart fruit seeds, check whether the packaging has a trademark, factory name, and the address and contact details of the manufacturer, and it must have a production date and shelf life that are clearly visible; it is best to buy seeds of a well-known trademark. If you can buy seeds locally, try not to buy them online. Seeds bought online have an extremely low germination rate; they may come in beautiful packaging with comprehensive information printed on the bag, but the sprouting rate is very low.

What seedling raising methods are there for sweetheart fruit seeds?

1. Land preparation and fertilisation

You need to put enough effort into preparing the field: make the field into terraces, and after ploughing you also need to apply enough fertiliser. After finishing the ground, the fertiliser applied most is organic fertiliser, and afterwards some phosphate fertiliser can be mixed in and applied together, so that the nutrients in the soil become balanced.

2. Seedbed cultivation

We first need to prepare the seedbed for cultivation; the seedbed's location should be as high as possible, and there should be plenty of water nearby, with good drainage. Put the seeds into warm water to soak, and after about one day they begin to sprout slowly; once the seeds show cracks, put them into the seedbed for cultivation. When sowing, first water the seedbed, and be sure to water it thoroughly; after scattering the seeds, cover them with sandy soil and keep the temperature.

3. Key points for transplanting

The time for cultivating seedlings is generally about one week, and the golden bell is almost ready to emerge; during this emergence period there is no need to water or fertilise, just wait. When the golden bell continues growing to more than 13 cm, you can begin the transplanting work. Choose an overcast day or a time after rain for transplanting; transplanting at this time will greatly improve the seedlings' survival ability.

4. Management techniques

The golden bell has very poor cold tolerance, so after the temperature drops we need to build a greenhouse; to ensure the golden bell's growth, the greenhouse height generally needs to be kept above 2 m, so that the golden bell can grow normally. The seedling stage and the fruiting stage are the two periods when weeds are most abundant for the golden bell, so we must carry out weeding work in good time, and burn the removed weeds, so that a large amount of pathogens does not enter the field.

The golden bell's appearance is similar to bitter melon, but its taste is not at all like bitter melon; it can be used by people for stir-frying, and can also be used as medicine to treat diseases. It is a very good green health vegetable.

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