Sexual hybridization of tea plant
a tea tree breeding method for carrying out sexual mating on two tea trees with different genetic characteristics. It can be divided into simple hybridization (referred to as "single cross"), backcross, compound hybridization, multiple hybridization, aggregation hybridization and natural hybridization. The technical points are:
① According to the breeding goal, select the hybrid parents, select the female parent, the requirement is strong; select the male parent, the requirement is high pollen germination rate. The seed setting rate of the same parent cross was significantly different from that of the opposite cross.
(2) 1~2 days before pollination, picking buds from male parent plants, brushing mature pollen gently with a brush the next day, and storing them in colored jars for later use;
(3) isolation measures were taken before female flowers bloomed, such as bagging isolation and yarn frame isolation;
④ carefully emasculate, because camellia monoecious, self-pollination has a certain seed rate, so it is necessary to remove the female stamen, when the bud is all white, bud ready to put, then use pointed tweezers gently open the petals, clamp to stamen, pay more attention not to hurt the pistil;
5. Pollinate within 1~2 days after emasculation, usually at 8~10 a.m.
Intensify management after pollination.
- Prev
Drought prevention and drought resistance measures of tea seedlings
The key to whether the newly developed improved tea garden can grow into a garden lies in whether it can safely survive the drought in summer and autumn. The climate of this year is very special, the cool sun is in the sky just after Meiyu, and it has been in high temperature since the first ten days of July. Some districts and counties are at 38 ℃-39 ℃ continuously for 7-8 days, which seriously threatens the growth, development and survival of tea seedlings. Tea seedlings in our city are most likely to die from the sun in July and August, so how to do a good job in drought prevention and drought resistance of seedlings is very important. To "cover", "cover", "irrigate", "give", "
- Next
Tea sex line breeding
The sexual offspring of tea plant are produced by the combination of male and female cells, and a breeding method of new varieties is developed through selection. A variety bred is called a sexual variety. The method is: 1. Selection of superior individual plant or type: single plant selection or group selection from the original material nursery or production tea garden according to breeding objectives; 2. Seed collection and seedling raising: for the primary selected individual plant or group, the seeds were collected respectively, and the seedlings were raised according to the system, and the seedling characters and variety purity were identified. Family or group comparison trial: compare selected families or groups with controls
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi