Is seedless watermelon genetically modified? What are the main points of the cultivation process?

Watermelon is one of the fruits often eaten in summer. it has large pulp, juicy and sweet taste, and tastes better after being chilled. When people buy watermelons, there are always merchants who will ask you to buy seedless watermelons, saying that they taste better, and if there are no seeds, there is no need to spit seeds. Is the seedless watermelon genetically modified? What are the main points of the cultivation process?

Is seedless watermelon genetically modified?

Seedless watermelon is not genetically modified. The theoretical basis of transgenic technology comes from molecular biology derived from the theory of evolution. The source of gene fragments can be the target genes needed to extract the genome of specific organisms, or the DNA fragments of artificial synthesis of specified sequences. DNA fragments are transferred into specific organisms, recombined with their own genomes, and then artificially selected from the recombinants for several generations, so as to obtain individuals with stable performance of specific genetic traits. This technology can make the recombinant organisms increase the expected new characters and breed new varieties.

Second, what is the cultivation process of seedless watermelon?

1. Sowing late at the right time, breaking the shell and sprouting

For the temperature required for the growth and development of ordinary watermelon, the temperature required for the growth and development of seedless watermelon is higher than that of ordinary watermelon, the seed coat of seedless watermelon seed is thicker and not full, the seed embryo is poorly developed, and it is not easy to sprout. Artificial assistance is needed to break the shell to improve the germination rate.

2. Sufficient amount of base fertilizer and heavy topdressing

Compared with common watermelon, seedless watermelon has the double advantages of polyploidy and hybrids, and has great potential to increase yield. Therefore, generally speaking, the basal fertilizer and topdressing of seedless watermelon were increased by 1 to 4 and 1 to 3 compared with ordinary watermelons. We know that if you want to produce good fruit, water and fertilizer management is very important, stems and leaves grow fully in order to produce larger fruit. Lack of water and fertilizer, not only the yield is low, the fruit is also small, affecting the economic interests of farmers.

3. Configure pollination plants

Although there are many female flowers in seedless watermelon, it is highly abortive in self-breeding with this variety, so it is necessary to accept the pollen of ordinary watermelon in order to set fruit. Therefore, it is necessary to plant a certain amount of common watermelon as pollination plants during cultivation. Generally speaking, 3-4 rows of seedless watermelons are planted with one row of common watermelons. After pollination, the fruit shape and pericarp color of watermelons are obviously different from those of seedless watermelons.

4. Proper sparse planting and pruning

Sparse planting: seedless watermelon has developed roots and exuberant stem growth, so the row spacing between plants should be appropriately larger, which is conducive to root elongation and plant absorption of soil nutrients. Whole vine: watermelon vine can strengthen the ventilation and light transmission of melon field, increase plant photosynthesis, increase photosynthetic area, ensure the quality of watermelon fruit, the fruit is large and sweet. Generally take three vines to prune and strive for a multi-fruit plant.

5. Leave fruit in high position and set fruit in relay.

Seedless watermelon plants grow luxuriantly after vine extraction, under the condition of sufficient water and fertilizer, in order to prevent plant branches from growing too much, we can take relay fruit setting. Generally speaking, the melons with 3-4 female flowers are large, sweet, juicy and good in character. For overgrown plants, we can flatten the vine at 3-5 nodes from the growing point to promote the transport of nutrients to the melon and provide adequate nutrition for the fruit.

6. Harvest early as appropriate

The appropriate early harvest seedless watermelon has good soft taste, more juice, good quality and good commodity value, while the late harvest watermelon is easy to empty the soil, and the quality decreases, which affects the economic interests of farmers.