Passion fruits can be propagated by planting the passion fruit seeds, through grafting on a resistant root stock and via cuttings. The most vigorous propagation techniques are via seeds and grafting. Here is a look at the various propagation techniques:-
Passion Fruit Seed Propagation
The passion fruit seeds should be collected from superior vines based on the quality and the yield. Extract the pulp and allow it to ferment for 72 hours and then extract the passion fruit seeds. Sow the seeds in seed beds that have been well prepared in advance.
Once the seeds have sprouted and attained four to six leaves, you can transplant them from the seed beds to smaller polybags that that contain a mixture of soil, sand and compost. Leave them here for a duration of three months after which they will be ready for transplanting in the main field or garden area.
Passion Fruit Vegetative Propagation
The best cuttings are the semi-hardwood type with a size of 30 to 35cm and with three to four nodes. These make for ideal cuttings. Put these cuttings in the pots or sand beds for root initiation and then transfer them to the polybags where they can undergo proper root development. After a duration of three months, these rooted cuttings can then be replanted. The main issue with the vegetative propagation is that it is quite time consuming and not very popular with many farmers.
Spacing and Planting Your Passion Fruits
The kind of spacing to leave will depend on the type of training system that you are planning to adopt as well as the variety of passion fruit that you are planting. If you are planting your passion fruits in a bower system, you can have a 3m by 3m spacing that will accommodate up to 1110 plants per hectare. On the other hand, for a Kniffin training system, a spacing of 2m by 3m would be ideal. This will accommodate up to 1666 plants per hectare.
Avoid planting the passion fruits in areas that experience stronger winds. A sheltered site is generally more ideal. Strong wind will damage the passion fruit vines and have a negative impact on your yield but they may also make training your passion fruit a bit difficult. Prepare planting pits that you have filled with a top soil and compost. Do your passion fruit planting on cloudy days at the onset of rains. In India, the best planting time is in the months of May to June at the onset of monsoon rains. In the first five to six months, you can intercrop the passion fruits with seasonal vegetables such as ginger and turmeric.