The florescence of passion fruit

Passion fruit has a strong aroma, the pulp is nutritious and juicy, sour and sweet and delicious, and many fruit growers will plant passion fruit. Fruit growers should first pay attention to the flowering period of passion fruit. How long is the flowering time of passion fruit?

The flowering period of passion fruit

Passion fruit belongs to autumn fruit. The flowering period is from May to July and the fruiting period is from July to September. Passion fruit can blossom in July when it is planted in spring of that year, and can be harvested in September. After the second year of planting, it begins to blossom in April every year, and it can bloom in 5-6 batches a year. Each batch of flowers is 20 days apart. It takes 60-70 days from flowering to fruit ripening, and the fruit is harvested for more than 4 months.

Second, why passion fruit only blossoms but does not bear fruit?

The main results are as follows: 1. During the flowering and fruiting period, there is a high temperature and drought, and if the water is not guaranteed, the flower buds can not develop normally, and then turn yellow and fall off, and some fruits will fold or even atrophy and fall off.

2. The possible reason is that the flower bud can not expand due to the low temperature stress after the flower bud appears, and the concentration of fertilizer applied is too high, the plant is still too small, and the resistance to stress is not strong.

3. Passion fruit has the phenomenon of poor natural pollination. It is more difficult to pollinate effectively, especially in the case of rooftop or a small number of plants without the help of pollinating insects.

Third, how to pollinate passion fruit?

Generally speaking, passion fruit in China is divided into two varieties, one is purple and the other is yellow, which is distinguished by flower color. Purple varieties of passion fruit can be pollinated by insects, otherwise they will not bear fruit. If it is a yellow variety of passion fruit, it is more troublesome, its stamens grow special, stamens and pistils are far away, need cross-pollination, and insects are also difficult to ensure pollination rate, artificial cross-pollination is easy to bear fruit.

There are two methods of artificial pollination: one is to apply the pollen evenly to the three stigmas of the pistil with a brush. Second, collect the pollen sac with tweezers and put it into an average clean cup, then add water to make the pollen dissolve into the water, and then spray the pollen water on the pistil stigma with a sprayer. Note that passion fruit blossoms around 11:00 every morning, artificial pollination in time after flowering, pollination is completed before 4 o'clock in the afternoon.

The flowering and fruiting of passion fruit is very important, if it does not blossom and does not bear fruit, it will often affect the harvest and cause the loss of profits, so we need to pay special attention to the flowering period and flowering of passion fruit.