How do the latest seeds grow?

Annona, also known as Sakya fruit, Lai cone fruit, Buddha head fruit, etc., is a small perennial semi-deciduous tree of Annonaceae. It is native to tropical America. Besides being used as tropical fruit trees, it is suitable to be planted in garden and green space. The effect of planting alone or in pieces is good. Let's take a look at how to grow Annona seeds.

Seed treatment of Annona

Annona is directly planted with seedlings, and the source of seeds is very important. The seeds should come from the fruits of high yield, high-quality mother plants and correct fruit shape, preferably the fruits produced by artificial pollination of the same variety. When the fruit is fully ripe, the fruit becomes light green and yellow, and the suture line between the small fruits is obvious, the seeds are collected. As a grafted rootstock culture, seed collection can reduce the requirements. After the seeds are removed, wash them, remove the unfilled seeds and small seeds, dry them and sow them immediately. The seeds sown in the spring of the following year should be fully dried in the sun, and then placed in a polyethylene plastic bag and sealed.

Sowing time of Annona

In the areas with high winter temperature, it is better for Annona to dry and sow the seeds from August to September, the germination rate of fresh seeds is higher, and the growing period of seedlings is long, which is beneficial to the cultivation of strong seedlings. In order to cultivate strong seedlings, the seeds can be soaked with 200 mg / kg gibberellin for 24 hours before sowing, and the seedlings can emerge 3 days ahead of schedule. Spraying 6 leaves of seedlings with 5000kg 6000 times foliar spraying can effectively improve the rate of strong seedlings. As Annona seedlings are sensitive to frost, autumn sowing seedlings should pay special attention to cold prevention and heat preservation. It is best to sow seeds in spring in other south subtropical regions. Generally, the local low temperature, overcast and rainy weather has passed, and it is better to sow seeds after sunny and warm.

Sowing method of Annona

The stored seeds of Annona should be dried before sowing in order to promote germination. The nursery should choose the sandy loam with good sunny drainage and fertile soil, and the flat land on gentle slope is the best. Before sowing, the nursery should turn the ground deeply for 1-2 months, then use rotten organic fertilizer and a small amount of lime as base fertilizer, break and mix well, and then repair the ditch. Strip sowing or sowing can be done, with seeds of 7 to 8 kilograms per mu. Cover with river sand or fine soil, slightly compacted and drenched with water to cover grass or plastic film, nursery bed pay attention to moisturizing, but also afraid of stagnant water, so we should also pay attention to prevent too much water, so as not to cause root rot. After germination, uncover the grass or plastic film to avoid bending the seedlings.

Seedling management of Annona chinensis

1. Watering and fertilization: the seedling stage needs to be drenched once in about 3 days, once a day in case of drought, dilute fecal water or 0.5% urea can be applied after 6-8 leaves, and then gradually increase the concentration. Potash fertilizer or compound fertilizer is also needed in the later stage of the nursery to facilitate the cultivation of strong seedlings. Weeding and loosening the soil should be done before fertilization.

2. pest control: the occurrence of insect pests in Annona seedling stage is less, but diseases often occur, especially root rot. Therefore, the seedling stage should pay attention to prevention and control, to prevent excessive shading and flooding, and pay attention to methyl thiophanate leaching prevention.