I engaged in modernization in ancient times

Bends divide the land.

Mo Shaoheng took a look, he probably knew why the output was not as good as every year.

I asked the old steward who followed Zhuangzi, "Is the seed used every year from these fields?"

The old steward nodded quickly, "Exactly."

The farmers planted the land, they kept their own seeds, and everyone was like this.

Mo Shaoheng thought to himself, this is the most inappropriate thing, and the reason was explained in the junior high school curriculum.

This kind of small-scale planting results in self-pollination of small groups, and the quality of seeds will degrade at a very fast rate.

Naturally, the output of a year is worse than that of a year.

Some people may ask, there was no optimal seed company in ancient times, and there was no genetic technology. Why can we still cultivate for hundreds of thousands of years without seeing how degraded the seeds are?

In fact, this is because of large-scale planting, that is, the formation of hybridization, which to a certain extent avoids the production of close offspring.

Of course, the result of hybridization is not directional, and there may be good seeds or worse seeds.Why was the output of grain in ancient times so low that it is completely incomparable with the output of modern times?One of the reasons is that there is no targeted training.

Even with small groups self-pollinating as they are now, the seeds degenerate more and more from year to year.

Mo Shaoheng beckoned to more than a dozen students, "Today I will tell you some common sense..."

"By the way, we have also set the first major topic of our study, the directional cultivation of seeds."

Maybe these students will also have a day that shocks the world.

If these things were taught in class, it would be downright boring, but in the field, facing the sunset, it would be a different feeling.

"It's all common sense."

A group of students said "oh", and they also thought it was common sense, the reason why they didn't know it was because they were ignorant.

Time passes quickly.

The next day, everyone went back to their respective homes.

Zhao Jingcheng was yawning, he had to go home to catch up on sleep, Zhuangzi said it was fun, but there were too many mosquitoes at night.

Passing the hall, Princess Yi was talking to the nurse in charge.

"Princess, I'm afraid Zhuangzi's harvest will be less this year."

"It's strange to say that the number is getting smaller every year. Our family bought too much new farmland..."

Just as Zhao Jingcheng walked through the door, he stepped back backwards, blinking his eyes, "Mother, what were you talking about just now?"

Zhao Jingcheng walked in, holding a thread-bound notebook in his hand.

Princess Yi couldn't help taking it over to have a look. There was a bunch of millet in the book, and there were words "Haploid" and "Diploid" written on it, but she didn't understand it.

Seeing Princess Yi reading his notes, Zhao Jingcheng was a little shy, "This is the specimen I followed in class yesterday."

"In the past, Fan Shen always said that I was a fool. After seeing my specimens yesterday, he even praised me, saying that I have a bit of art."