Begonia artificial breeding technology (2)
Second, the morphological characteristics Begonia body is divided into the umbrella and mouth handle. Umbrellas are high, super hemispherical, and thick rubber layers. The central part of the umbrella body is a cylindrical handle in the center, and its surface is covered with a group of barbed cells, which functions as a predator and a defense. Inhalation is the channel between the stomach cavity and the outside world. It also has functions such as feeding, excretion, reproduction and circulation. The stomach cavity is large and oval. Six spokes are projected from the central stomach toward the umbrella edge. Several branching tubes are generated on the side of the spoke and the terminal is connected by a ring tube to form a complex network management system. The stomach cavity extends downwards and bifurcates into the mouth and shoulder plates to form a carpal tunnel that communicates with the mouthpiece. The gonad is formed by the endoderm of the umbrella wall in the stomach cavity and is located above the genital cavity of the ventral surface of the umbrella body. On the outside of the gastric filament, pleats are formed, and the width is 5 mm to 10 mm, a total of four. One end of the gonad (central end) is connected to the glial membrane and the other end is free, forming a genital cavity between the glial membrane. No genital duct, sexual products through the reproductive cavity to the stomach cavity, and then excreted through the mouth. Diverse colors, mostly purple, milky, light blue or golden yellow. The color of the umbrella and the handle are similar. Third, reproduction and growth alternate generations of generations, jellyfish through sexual reproduction asexual generation of leeches type, blister-type breeding through the horizontal cleavage of jellyfish-type, leeches-type camp fixed life, jellyfish-type camp plankton life. The so-called jellyfish is jellyfish type adult. Hermits are dioecious and mature in autumn. The individual with an umbrella diameter of 500 mm has 40 to 50 million eggs. The head of the sperm is of conical type, about 3 microns in length; the tail is slender, about 40 microns in length; the oval sphere is about 80 microns to 100 microns in length, and the amount of ovulation is several tens of millions of grains, which are discharged in batches. The jellyfish egg is mature and split under seawater after it is detached from the ovary. The fertilized egg develops into a floating larva at an appropriate temperature, showing an oblong shape. After a few days, the majority can become early podoids. The juvenile scorpion camp lives in a solid state. From autumn to early summer, some pods can form in the pods. When the water temperature rises to a certain temperature, the pods form many new species in asexual reproduction. The pods then produce a dish that eventually becomes a cub. Two months later, the umbrellas reached a diameter of 1 cm-4 cm and a weight of 6 kg-20 kg, becoming sexually mature.