Cultivation techniques of Siraitia grosvenorii

Siraitia grosvenorii cultivation can be divided into asexual reproduction and sexual reproduction.

1. Asexual reproduction of Siraitia grosvenorii.

At present, it is widely used in producing areas, and the advantage of this method is that the seedlings bear fruit early, can maintain the excellent characters of the mother plant, and speed up the breeding of improved varieties. The disadvantage is that endless asexual reproduction can easily cause the degradation of varieties and reduce the yield. The time of asexual reproduction is in September, and the vines used for asexual reproduction should be grown from one-year-old plants or lateral vines from strong-aged and high-yielding plants. After the plant is on the shed, the weak, long lateral vines (lazy vines) hanging from the scaffolding can not be used for reproduction, because the seed potato pressed by the lazy vine can not give full play to the advantage of the variety, on the contrary, it will accelerate the degradation of the variety and the flowering rate is low.

The operation method of asexual reproduction of Siraitia grosvenorii cultivation: after the rainy day in September, 3-5 vines of Siraitia grosvenorii plant were parallel buried in the soil pit, and the loose soil was filled with 6-7 cm, slightly compacted, showing the shape of tortoise back. One month later, the seedling tip expanded into small roots, that is, seed potato. Seed potatoes were dug up in winter, buried in well-drained pits, kept warm for the winter, and planted the following spring. The key to the success of vine propagation is to master the pressure time, the soil is moist, the vine is early, the vine is not swollen and rotten to death, the vine is late, the seed potato is small or not inflated.

2. The cultivation of Siraitia grosvenorii has sexual reproduction.

Seed reproduction is generally not used in producing areas. The disadvantage is that the male plants of the seedlings obtained by this method account for more than 70%, the growth period is long, and it takes 3-4 years to obtain high yield. The advantage is that a large number of seed potatoes can be obtained, the main means of inhibiting variety degradation, purification and rejuvenation and breeding new varieties. At present, there are also tissue cultured Siraitia grosvenorii seedlings, but the tissue seedlings are weak and prone to diseases and insect pests, so there are still many problems to be solved in field production.