Hybridization definition: base pairing of two single-stranded DNA or RNA. A classic and commonly used experimental method in genetics. The method of obtaining individuals whose genes are recombined by mating between individuals of different genotypes. Generally, the process of achieving this goal through the fusion of germ cells is called hybridization; and the process of achieving this result from somatic cells is called somatic hybridization.

According to the requirements of the Hell Palace, it is urgent to solve the yield problem of this natural treasure for a long time, so that everyone can have more time to practice. After all, you really think that the purpose of everyone joining the Holy Academy is to improve themselves, rather than becoming a hard laborer, or a hunter.

"I have already told you about hybridization. I believe that the junior sister should also know the importance of hybridization to our Holy Academy. You should also know that Professor Yuan directly increased the rice yield by 20% through hybrid rice and raised 200 million more people. The Western world said that hybrid rice is "Oriental Magic Rice", and his other title is "Chinese Magic Rice". His achievements not only largely solved the problem of Chinese people's food, but are also considered to be the magic weapon to solve the problem of world hunger in the next century. Internationally, hybridization is even used to treat hybridization.

As the fifth largest invention in China after the four great inventions, Rice is known as "the second green revolution, so I hope you can lead Brooke to create a new hybrid natural treasure. My requirements should not be too high. As long as you increase by 10%, we can complete some things that everyone cannot imagine. We can also bring more elixirs back to the Continent of Cultivation. This place is a place that is hard to come by, so we need your help." Chen Chao said sincerely. Now even Avier and Xiaoqi are looking at Caobi and Brooke with anticipation.

"I studied marketing in college, not biology. You don't even tell us any methods, right?" Cao Bi said with a smile.

"I actually follow the script, and what you want is to learn from it. These are the main methods. The male sterile line: a kind of male degeneration (mainly pollen degeneration) but normal pistils. Because the pollen is unable to live and cannot self-pollinate and strengthen. Only by relying on foreign pollen can it be fertilized and strengthened. Therefore, with the help of this female sterile rice as a genetic tool, through artificial assisted pollination, a large number of hybrid seeds can be produced.

Maintenance: It is a normal rice variety. Its special function is that after using its pollen to the sterile line, the offspring produced are still male sterile. Therefore, with the help of the maintenance line, the sterile line can reproduce from generation to generation.

Recovery system: It is a normal rice variety. Its special function is to use its pollen to impart the hybrid males to the sterile line to restore normalcy. It can self-comb and strengthen. If the hybrid has advantages, it can be used for production.

Three-line hybrid rice: refers to male sterile lines, which are suitable for breeding of three lines of maintenance and recovery lines. The sterile lines provide the possibility for producing a large number of hybrid seeds. The sterile lines are used to reproduce sterile lines, and the recovery lines are used to pollinate the sterile lines to produce hybrid rice that has the advantage of male recovery.

Two-line hybrid rice: a rice named as the phototemperature-sensitive sterile line. Its fertility conversion is closely related to the length of sunshine and the temperature. It shows male sterility under long-day high temperature conditions. It restores male fertility under short-day flat temperature conditions. It uses phototemperature-sensitive sterile line to develop hybrid rice. It can be used to make seeds with restoration line under long-day sunshine in summer. It can reproduce itself in autumn or in spring in Hainan. There is no need to use the maintenance line to reproduce sterile line. Therefore, hybrid rice prepared with phototemperature-sensitive sterile line is called two-line hybrid rice.

A series of hybrid rice: A series of methods no longer require annual seed production, and the seed advantages have not changed. It is also a process of progressing from traditional to simple and from low to advanced. The steps are as follows:

Select the parent of rice varieties; remove the male maternal treatment; hybridize the parent with the father; cultivate the maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal maternal

Good rice varieties are used as the parent body; then we hybridize the whole ear with the father; after fertilization and solidification, apply appropriate amount of nitrogen fertilizer to facilitate the germination and growth of axillary buds; generally, the axillary buds we selected are axillary buds at the second leaf position of the rice mother; use the secondary flowering and fruiting characteristics of the axillary buds to make them self-combined. After the self-combined seeds mature, the self-combined seeds with the axillary buds of the second leaf are harvested as the propagation material for the next year, and the self-combined seeds are a new variety that has hybrid advantages and has been fixed. I hope these will have some inspiration to you." Chen Chao finished speaking and drank a large glass of water.

"I didn't expect that your ability to remember everything is really good. We will try it now by using pollen fertilization." Caobi took Brooke and went straight into the Rasdi Valley. Their tasks were relatively heavy. They collected seeds and pollen, established a laboratory, a cultivation room, and a seed room. Of course, they must have taken the lead at the beginning. As for how to do it later, everyone will definitely help.

"Boss, we're done." Cruyff and his team reported when they came in.

"How many people are there?" Chen Chao was most concerned about this. Now everything is ready and only people are worthy of people. Many things are really powerful. It is impossible to start creating any robots now. It would be strange if this doesn't attract the siege of the guys in the Hell Palace. He still understands the truth that holding a treasure is guilty.

"It's exactly 300 people, each of which is at the intermediate level of the holy level. It's very good. I divided them into eight groups according to their magic attributes, namely wind, fire, earth, water, darkness, light, thunder, and naturally. It's also strange. Each group is exactly 30 people, and there are 60 swordsmans left. I want to form a self-defense team to specifically protect our base and patrol our territory, as well as collecting and offering sacrifices in the future Mixed Land. What do you think?" Cruyff said.

"The natural system is divided separately first and ask them to follow my mother and Brooke. As for the wind system, it will be handed over to Senya, the fire system is handed over to Bobby, Phillips and Yilu, the light system is handed over to Master Xiaoqi and Reddy, the dark system is handed over to Boy Chen Ye, the water system is handed over to Cao Lan, and the earth system is handed over to yourself. Fortunately, everyone is in the compound system, and each person is proficient in at least two-type magic. Otherwise, it would be a bit difficult to find eight commanders at once. As for the remaining sword saints, Reina will be responsible for it, so everyone has no objection." Chen Chao first arranged personnel.

"Didn't you say we still need to train a high-level holy master? I'm afraid I'm a little bit difficult for me and I." Phillips said awkwardly.

"Chen Ye, do you have any problems?" Chen Chao looked at his three-year-old brother.

"I definitely have no problem. I can still teach a high-level holy level." Chen Ye said confidently.

"Then I will take care of the Light. Master Xiaoqi has started. I'm afraid I'm too idle, but you two are responsible for it. Don't be lazy, otherwise I will deduct your credits." Teacher Avier took the sentence when he saw Chen Chao with a headache.

"It is best for the teacher to be responsible for nature. Now I will assign tasks. This is the map of our East District. In addition to our usual practice and meetings, your main locations are these areas. I have marked them according to your attributes." Chen Chao directly transformed into a sand table. Each attribute is one color. Everyone can see it at a glance.

"Now we will assign the tasks of the Holy Academy. In addition to you being responsible for the collection of the natural and earth treasures in the area, we also need to carry out the daily work of the Holy Academy, and we only have three months, so we need to train new people as soon as possible. The Fire and Earth System are responsible for the construction and fortifications in our area, and the Light System establishes medical mechanisms and logistics within the area. The Wind System and the Dark System are responsible for trap defense and intelligence work. I will work with you, don't pout your little mouth." Everyone looked at Chen Ye with a knowing smile.

"The water system is responsible for the construction of the city wall and internal logistics construction first. Thank you for your hard work. As for the Sword Saint, you can go to the Mixed Land to collect the rule of the East District. After you finish your work, you will receive the work of the water system. I will have great use for the Dharma Saints in the Water System." Chen Chao finally arranged the task clearly.

"Cruyff, you can lead the people of the Nature Division to find Brooke first. Let's go all out. Remember, brothers are in the same direction."

"It's good at breaking gold." (To be continued, please search for astronomy, novels are better, updated and faster!
Chapter completed!