The cucumbers are different in sex, the flowers are larger, and the hybridization technique is simple.
The sowing date and planting ratio of the parents: The suitable temperature for cucumber seed germination is 25-30 degrees Celsius, and the suitable temperature for growth and development is 20-30 degrees Celsius. The sowing date for seed collection should be from late February to early March. Parents' ratio of planting is 1:10.
Artificial hybrid seed production time: cucumber flowering temperature 15 degrees Celsius, fertilization suitable temperature 17-25 degrees Celsius, the temperature is too high, will make the fertilization ability weakened, affecting the amount of seed collection. Manual hybridization is generally performed in the middle or late May and ends in 10-15 days. The main branch cucumber results, it is appropriate to begin hybridization in the main branch of Section 8-10, a strain can be continuous results of 2-6, the number of melons, depending on the variety. For collateral-based results, the first female flower of the lateral branch, which was apposed to above section 8 and above section 5, should be crossed. The festival is too low, the seeds are small, and the melons are easy to get on the ground and get sick.
Female buds: In the early evening of the hybrid, the female flowers on the female plants that are about to open the next morning are tied with plastic threads or hemp, or they are clamped with thin wire. At the same time, the opened female flowers and young fruits (both not artificially pollinated) and male flowers were removed.
Picking male flowers: Before 5 o'clock on the morning of the hybrid, collect the male flowers that were opened on the father's plants and put them in a petri dish for use. Alternatively, on the evening before the day of hybridization, the male buds that were opened the next day were picked and placed in paper bags for later use.
Pollination: Pollination starts from morning dew and ends at noon. First loosen the ropes that are tied to the female corolla, and plug the male stamens on the stigma of the female flowers, and then tie the corolla tightly to prevent the insect from pollinating. On the nodes of the hybrid fruit, fine iron wire or playing cards are used as markers.
Collect melons: 40-50 days after artificial pollination of spring cucumbers, and 30-30 days after pollination.
Gastrointestinal Tract Infection
Gastrointestinal tract infection
There are many kinds of intestinal diseases with complex causes, which have caused great harm to aquaculture production.
Porcine enterovirus infection, rotavirus infection, porcine proliferative bowel disease, Yersinia disease, porcine epidemic diarrhea, porcine colibacillosis, porcine Clostridium enteritis.
Bovine enterovirus infection: the main gastrointestinal diseases in cattle breeding are esophageal infarction, anterior gastric atony, rumen gas (commonly known as bloating), rumen food accumulation, traumatic reticulogastritis, omasum obstruction, Gastroenteritis and pericarditis.
Gastrointestinal infection in sheep: endometritis, mumps, pharyngitis, esophageal obstruction and salivation.
Treatment of porcine enterovirus infection,Bovine enterovirus infection,Gastrointestinal infection in sheep
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