Live broadcast: Ancient people accompany me to make up lessons

[I don’t know how shocked everyone else was because of this list. Xiaoxiao, who didn’t want to look at the list at all, sat back at the desk after getting the system OK prompt.

"Okay, please ask the first lucky viewer to post your question first."]

Li Si quickly tidied up his clothes, bowed to the sky, and asked in a ceremonial manner: "May I ask the goddess if you can give me more detailed information about hybrid rice?"

His words were automatically recognized by the system and were not converted into words, floating past the sky and in front of Xiaoxiao's eyes.

[How can Xiaoxiao, who has not experienced the college entrance examination and has not studied for three years, answer the question? She got stuck for a moment and quickly said: "I don't know much about this aspect either. Just wait a moment and I'll find some relevant information and videos for you to watch. Bar."】

Others didn't know what the video was, and they didn't know why the goddess had this book and said they didn't know much about it. However, she didn't refuse directly and said she wanted to find information. Everyone was very moved after hearing this.

They saw the goddess push the book away, pick up a strange and many square objects and put it in front of them, and then pressed something. The black screen with white edges on the table suddenly became brighter, and the black screen changed from black to black for a few breaths. Turn white, and then turn from white to colorful.

Many people held their breath when looking at the cosmic starry sky desktop in their small computers, and astronomy practitioners and enthusiasts even shouted "Galaxy", all of them extremely excited.

The emperors represented by Ying Zheng and Liu Che couldn't hide their excitement, thinking that they were indeed goddesses, and that they could capture the Milky Way within a small space, which was a divine method!

They stared at Xinghe, not noticing that a small cursor was moving, and then Xinghe's screen was replaced by a white website.

There was a clicking sound, and everyone took a look and realized that the little hands were placed on the unknown object and kept tapping the small squares on it. As her fingers dropped, characters appeared in a box one by one, and then she selected the words "Detailed explanation of hybrid rice" from the square characters with the same pronunciation. She had her right hand free to control the movement of a gadget, and a small arrow was placed on the words "Baidu Click".

She scrolled down a little, and there was a click. The gray screen instantly became colorful, and all the photos and information about hybrid rice appeared. On the right, there were different varieties of rice and Grandpa Yuan who appeared in the previous textbook.

[Xiao Xiao scrolled and searched for information. Everyone who followed her had no time to see clearly before reaching the next one. They could only think that she was indeed a goddess, and she could read ten lines at a glance, while begging her to scroll slowly.

Xiaoxiao clicked through several entries and found that they were all filled with professional terms. Her eyes hurt from looking at them, so she simply entered the video website and searched again, and sure enough she saw related videos that streamlined high-density information.

"It's too troublesome to read the text, so I'll show you the video."

She clicked on "Principles of Hybrid Rice", which had a good amount of views and duration, and played it directly in full screen, while also consolidating her biological knowledge. 】

[The white screen on the secondary screen fills the entire screen, and a gentle girl starts to speak in a standard voice.

"Everyone knows that Grandpa Yuan is the father of hybrid rice in our country and even the world. He has made great contributions to our food security and solved the food and clothing problem of our people. Today I will take you to recall the principles of hybrid rice."

Two rice plants appear above, one with more ears and one with fewer ears.

"Hybrid rice has more advantages than conventional rice: drought tolerance, strong adaptability, and high yield. These advantages are also called hybrid vigor."]

This "hybrid" actually still has an advantage?

In some dynasties where the word "bastard" was used as a curse word, people who used the word "bastard" kept silent. Even if they had objections to the word in their hearts, they did not dare to say anything in front of such a prolific god. .

[The enlarged picture of the rice and the stamens clearly visible inside the plant appear.

“Rice is a monoecious and self-pollinating plant. During the flowering period, the pollen from the stamens will fall on the pistils. This phenomenon is called ‘self-pollination’.

‘Selfing depression’ is a ubiquitous phenomenon in nature, which means that ‘hybrid vigor’ will gradually decline and disappear along with selfing.

For example, if the parents in human society are powerful, there is still hope that the children will be as powerful as their parents or even more powerful; but no matter how powerful the hybrid rice parents are, the children will become less and less like their parents and their abilities will become worse and worse."]

"This is why one generation is getting worse than the next!" The farmers didn't understand it at first, but they understood it instantly later.

Zhao Guo thought thoughtfully: "So this hybrid rice is trying to retain the advantages of seeds and maximize these advantages. But how does it achieve such high yield?"

The parents who thought he was the father of a tiger and the son of a dog nodded in agreement, thinking that this person also had a bad luck period when giving birth to children. Looking at their family, they were afraid that they were in "recession".

Li Zhi and Wu Meiniang looked at each other and thought of their children with average talents. They wondered whether they both had too many "advantages", which caused the children born to them to "decline" one by one.

Wu Zetian, who ascended the throne and proclaimed himself emperor, also thought of his sons and felt complicated for a moment.

["So, letting rice self-fertilize will not work. Then can we intervene artificially through artificial pollination?"

The rice plant slowly enlarges, and the large and small rice flowers appear in detail. At the same time, there are red circles around the pistils and stamens, and the names are written on them.

"Yes, but we have to remove the stamens before pollination so that they cannot self-pollinate. This is obviously not possible in large-scale production."

The four characters "artificial pollination" are marked with a big x. ]

Farmers from the declining Qin and Han dynasties watched Tian Mu's explanation with excitement. Regardless of whether their experience in growing corn and soybeans was useful for this unfamiliar rice, they all seized the opportunity to write down this knowledge.

Shen Kuo thought thoughtfully, since hybrid vigor cannot be maintained and artificial pollination is difficult to promote on a large scale, Mr. Yuan must have found a way to ignore the monoecious selfing characteristic. It is even possible that those rice plants have only male or female plants!

[The picture gradually moves upward from the rice fields, mountains and rivers gradually appear, and the satellite map of China emerges, and then slowly moves south, settling on Hainan Island.

"Grandpa Yuan's team discovered a rice plant in Hainan, my country. Its characteristic is that the stamens are inactive and cannot complete self-fertilization. It can only reproduce through cross-pollination. We call it 'wild failure' or 'sterile rice' , and that’s exactly the rice we need for artificial pollination!”]

No matter where the farmers were, they were dumbfounded, thinking that this millet that could not reproduce on its own would be a good thing.

Zhao Guo, who also had his own opinions on farming, also understood that this hybrid method would retain all the advantages of the millet. Everything remains the same. Since rice can be used, can the corn and bean sprouts they often grow also be used?

Su Shi, who was still in Changzhou but had not yet arrived in Hainan, thought to himself that there were such good crops in such a remote place as Qiongzhou. He really wanted to look for it if he had the chance.

Shen Kuo tugged his beard with his hand. He didn't care about the pain. He cheered repeatedly and quickly wrote down these professional words and the detailed internal structure of rice flowers.

[The video begins to change again. Each plant looks the same, but if you look closely, different rice appears, with different code names next to it.

"A rice with the same shape but normal stamen development is crossed with a wild strain (sterile line) to obtain offspring, and this rice becomes a maintainer line. We can then cross the wild strain with rice with different excellent traits to produce hybrids with Advantageous hybrid rice, which we also call restorer lines."

The rice grains with different names appeared again, and then there was an x ​​in the middle of each pair, and another arrow formed the next one.

"The sterile line with dead stamens is then crossed with the restorer line to obtain hybrid rice with hybrid vigor. It is not enough to harvest hybrid rice only once. In order to continuously obtain hybrid rice, it is necessary to continuously obtain restorer lines and non-sterile lines. Breeding line. So we mentioned earlier that the maintainer line and the sterile line are crossed to obtain the sterile line...

This method, also known as the three-line hybrid method, helps us continuously produce high-yield hybrid rice and ensures our country's food security. "

The time when hybrid rice appeared and the number of rice yields per mu emerged. As time goes by, the number of rice yields per mu also increased exponentially.

The music started, and the old man who had been seen many times before appeared again. He was holding rice ears and smiling, and gradually disappeared amidst the cries of frogs and cicadas. ]

The ancient people who didn't know the adjective "science" were stunned. They looked at Mr. Yuan who was no different from an ordinary farmer above, and their hearts were filled with indescribable admiration.

The princes, generals and ministers who were astonished by this complex and reasonable hybridization method and the subsequent yield per acre also felt the same way. In a land where agriculture is the basis and everything depends on the weather, this old man has really solved several problems. The issue of eating has been of concern to everyone for thousands of years.

The Pei County official saluted to the sky: "Mr. Yuan, he is an unparalleled scholar in the country."

Liu Bei stretched his body and looked at the sky, his eyes filled with tears: "I guess there will no longer be hungry people in the world where Mr. Yuan lives."