The current concept of the people is simple and crude: the big and the more is the better.

If an ear of wheat can really have 20 grains of wheat, then the same basket of wheat ears can produce a lot of food that can be steamed, and this reason is very simple.

Since Jian Chen said that he could, of course the clansmen believed it.

Others, however, think differently.

Even though the stories and myths told by Jian Chen have always imperceptibly instilled the truth that people are the spirits of all things, some people still feel that there is something they don't know that controls everything.

It is like a man with two legs and a pig with four legs, which bloom when it is hot and wither when it is cold...... All of this is taken for granted, and this is something that God has predestined for.

But now that Jian Chen said that one day he would turn the original ten grains of wheat into twenty grains, these people felt a little scary, they didn't understand what they were afraid of, and they couldn't express it in words.

Perhaps to put it in a more fantastical way, to put it in a way that the people can't summarize, it is that mortals have set foot in the realm of the gods and disrupted the order set by the gods.

Although Chen Jian is arrogant, he also knows that breeding is an extremely long process, and he doesn't know how long it will take to succeed.

For example, wheat, the original wheat is just an ordinary diploid plant, and like people, the chromosomes are paired.

To put it simply, it is like a single eyelid and a double eyelid, A and A are paired, and when the baby is born, meiosis, the sperm cell and the egg cell separate the Aa pair, and then combine it with the cells of the opposite sex.

The wheat that Chen Jian ate in his previous life was actually hexaploid, and the gene pairs in his body were A1, A2, and A3 with a1, a2, and a3.

The original Aa wheat has fewer seeds, grows ridiculously, has poor tillering ability, and does not have a high seed setting rate.

One day, perhaps a spring frost, because the cold induces its chromosomes to double, becoming A1 and A2 with a1 and a2, which is tetraploid wheat.

This tetraploid wheat became thicker and produced more seeds.

By chance, it may have crossed with distant relatives such as wild knotweeds and rye, which are diploid, while it is tetraploid, so the base pairing is not perfect, forming triploid seeds.

Even-numbered pairs of genes must be used to reproduce offspring, as odd-numbered pairs do not fit perfectly after differentiating into sperm-egg cells.

This triploid plant germinates, grows, flowers, and grows spikes, but only is infertile, and there are no seeds in the spikes. It's a bit like a mule born of a horse and a donkey, but it's a little different.

Originally, it was impossible for this infertile seed to have offspring, but once again a miracle of nature appeared and acted as a maternity hospital.

These otherwise sterile seeds may have undergone another spring frost, or been roasted by fire or smoked by some poisonous gas, but in any case their chromosomes have doubled again, from triploid to hexaploid.

Nature cured its infertility and gave it more heterologous genes, allowing it to grow stronger and bear more fruit.

Because wheat is monoecious, and most of the time it is self-pollinating, this natural hybrid does not know how many generations the ancients bred; And the doubling of chromosomes caused by spring frost and autumn cold is even more accidental.

In the process of planting, people found that some wheat ears were larger and had stronger tillering ability, and they did not know that these wheat had been inadvertently modified by nature.

But people used experience to preserve these wheat as seeds, which were bred from generation to generation, and eventually spread all over the world.

This may be a process of tens of thousands of years, and the randomness in it cannot be controlled by Jian Chen, but he can use external forces to accelerate the process of doubling chromosomes.

As for whether the tetraploid or hexaploid is highly productive, it will require a long manual selection.

It's not too difficult, and the same can be done with plants like strawberries, forcibly making them bigger, or even crossing tetraploid and diploid watermelons to make seedless watermelons.

It sounds like a tall technology, but the front-end technology is simple.

Winemaking, pottery, distilled spirits. With these three technologies, this kind of preparation can be completed manually, it is nothing more than the time required to burn more, and this is not a high-end technology, the level of high school biology.

If you want to double the chromosomes of plants, you can use colchicine to induce, and soak seeds or seedlings in colchicine, he doesn't know what the concentration is, but he can soak it hundreds of times, and record the situation next year.

Colchicine is found in daylily, eating too much daylily may be poisoned, serious may die, since people can be poisoned, obviously the content is enough.

This poison is highly soluble in alcohol and water, and only needs to be highly extracted and soaked, and then concentrated by using the volatile nature of alcohol.

Under the existing conditions, it is definitely not pure, and there will be messy things such as pigments in it, but what Chen Jian wants is only a certain concentration of colchicine, and it is not an experiment, so there is no need to analyze the purity.

It's like arsenic mixed in the dirt and eaten to death, if it's just to kill, why do you have to purify arsenic?

Now that grain is available, yeast koji has been improved for several generations, and green mold is gradually decreasing, and there is no problem in using it to make grain wine.

Distilled liquor is also nothing more than because the boiling point of alcohol is lower than that of water, and it will boil when it is more than seventy degrees, so it will be easier for wine to turn into steam and fly out than water.

Jian Chen probably knows the principles, and these things are common sense, including everything he has done before. All that is needed is to combine this knowledge with today's rudimentary conditions.

He had never seen a wine steamer, but there was no substitute for the existing conditions, and a small hole was left after the lid was closed, forcing the steam to run out of the small hole.

Buckle a pipe on the small hole, the pottery pipe is on the line, it does not need to be formed at one time, and now there are fish maw glue, fish skin, pig skin, and thatch in the village, which can be used as a link to the seam place. More than a dozen pottery pipes are glued together, and the longer the better.

Then make some clay pots with holes underneath and wear them on top of these tubes, plug the holes with glue and skin, and fill the jars with cold water as a condenser, so that the steam in the tubes cools and forms a liquid flowing out.

Because the boiling point of alcohol is low, the earlier it comes out, the higher the concentration of the liquor, which was called the head of the wine in the countryside in the previous life, and the first distillation degree can reach forty or fifty degrees.

In order to increase the concentration of wine, the ancients would choose to distill and brew three times, but in fact, this is a way to get twice the result with half the effort. The so-called three brewing is to use wine as water to ferment grain again, but the yeast does not work when the alcohol concentration is high, so the three brewing does not have any use for eggs, and the useful is only three steaming, and this dead end can not be left.

The first time the liquor is not strong enough, it is steamed again. Only the head of the wine is used for experiments, and the tail of the wine behind it has a low degree and can be drunk as wine.

Regardless of the cost, there is no need to consider the problem of alcohol recovery when extracting colchicine, and even if he can recycle, he will not dare to drink it.

If all goes well, the concentration of colchicine is correct, the knotweed is perfectly crossed with rye, and only the beneficial genes remain, it will take three years to make the first hexaploid wheat.

It seems like a long time, but it is very easy to accept compared to tens of thousands of years of accidental mutation under natural conditions.

For a future farming nation, there is nothing more important than good seeds.

Only when we have enough food can we have more children, only when we have more children can we occupy the best place, and only by occupying the best place can the nation and civilization have a greater chance of survival.

All that is needed is a pair of hands, and a brain that can apply the knowledge of junior high and high school, and does not need too advanced theory.

Can't calculate the density of wine without a buoyancy meter and estimate the concentration of wine? Make a balance, make a pottery weight of the same size, weigh the weight of a jar of water, and then weigh the weight of a jar of wine, do a division to calculate the density of the wine is the percentage of water, and estimate the concentration.

Can't calculate the concentration of colchicine without a spectrometer? Manually divide into hundreds of parts, the concentration of each part decreases according to one thousandth, soak the seeds or seedlings respectively, spend an extra year to observe which ones are tetraploid, which ones grow thick and deformed, and choose the appropriate concentration.

Don't have a return pipe to circulate cooling water? Relying on people to keep pouring cold water into the clay pot is nothing more than a matter of a few more people, and it doesn't need too much, and it is not ready for mass production. As for the inability to recycle alcohol and the like, it's even simpler, no matter the cost.

When brewing ferments, I don't know if the fermentation is acidic or alkaline? Pick a trumpet flower bubble, turn blue is alkaline, add a little high-temperature steamed vinegar on the line, acidic conditions are more suitable for yeast to convert sugar into alcohol.

All the problems can be solved little by little, and the fourteen tribes exchanged two or three thousand catties of grain, which is enough for him to toss, and if he eats these grains, it is only ten days' food for the clansmen.

The local method was sometimes effective, and he habitually sketched out all the problems that could be encountered on the bark, estimated the possibility of solving them, and felt that the plan was feasible.

So after dinner, he and his people took a few days off.

Now the mental and physical strength is not completely divided, he positions himself as a "non-full-time cadre", now he has to do a lot of work, and everything he is doing now is to lay a good foundation.

Just like studying in a previous life, why do you have to endure so much hard reading? Why can't you have fun? Why don't you learn from others abroad and learn happily?

Because playing happily for a few years can result in unpleasant play for a lifetime. Those children who study happily are squatting in public schools, and those who stay up until midnight in private schools run to the Ivy League, continuing to fool more people to study happily.

It's still in its infancy, even if you want to be arrogant and lascivious, you don't have that opportunity, you don't have to leave the clan, you starve to death; And the people left him, and still lived the same, but the progress was a little slower.

When he made a suggestion, the people happily agreed, and the men claimed that they would finish the land he had to hoe, which was a sign of trust.

The work of steaming wine, a woman can do it; The hemp that is about to be soaked may be spun by the woman; Giving birth in a few months can only be done by women.

Jian Chen suddenly felt a little sad, his role for a long time was ...... It will be the director of the village women's federation.

PS: Explain the salutation problem. Elm money is the seed of the elm tree, and the name "elm money" came after having money, but the seed of the elm tree did not appear after humans had money. As I said in the chapter on Princess Elisa, the pronoun "front teeth" appeared after the door, but it does not mean that humans only grow front teeth after the door is found. There are also uncles, grandmothers and the like, my hometown calls my aunt a concubine, and my aunt calls her a mother (three sounds), a truth. As long as the mother has a brother, there will be an uncle, not that with the title of uncle, the mother can have a brother.

Well, Blackhan, the Black Hand; Smith, blacksmith; Fisher, the fisherman; Taylor, tailor.

That's it. Thank you for your support.