Yunxi sneered, "Sir, what you think is too beautiful, even if there was a road before, but you also said that the style of stone carvings is from the Han Dynasty, and it has been seven hundred years after a little calculation, right?" Even if the landscape has not changed in the past 700 years, the original path will definitely not be there. ”

Zhou Han said with a smile, "How can there be only one family on a road, how can there be a few hunters or something, it's not too far to say here, the hunters in the mountains should also come here." ”

"And we're coming along Stone Ridge, maybe there's a village nearby? Water is one and two water, and after eating, search for it. ”

What Zhou Han decided to do, Yunxi couldn't stop it, so he could only postpone going back for another day, but fortunately, when he left, he didn't say that he could go back in a few days, and he wouldn't be too worried if he wanted to come home.

The food cooked in the cold spring tasted even better, and even the boiled water tasted a little better. This not only made Yunxi depressed, but it was a pity that she couldn't afford to buy such a good place. But if Zhou Han bought it, it should be no problem for her to come and play for a few days, I hope this mountain is ownerless!

After eating, Shui Yishui Er went out to find a way, Ye Lu went out to collect firewood and hunted mushrooms by the way, and Ye Yuan and Ye Fu were left to tidy up the weeds on the stone house, prepare to clean them up, and camp at night. The stone house is not big, only two small houses, but thirty or forty square meters, and there are many stones, so it is not difficult to clean up. It is that the stone walls have collapsed, and Ye Yuan and the others have to lift the stones in the house to the stone wall, or move them to the outside of the house, which is more troublesome and tiring. Yunxi and Zhou Han were old and young, and they couldn't help, but they were embarrassed to just sit like this, so they went out to pick wild vegetables together.

Generally speaking, there are more wild vegetables in the open field, that is, after the season, most of them have blossomed and fruited, and the only ones that can be eaten are wild amaranth, gray cabbage and purslane, to be honest, these three tastes are not very good, the first two are astringent, and the latter is sour. There are also the buds of trees such as wolfberry thorn sprouts, so it is best to go to the water's edge, where the water celery, watercress is growing luxuriantly, if you are lucky, you can also find wild onions, wild garlic, wild leeks and other wild vegetables that taste very good in the shade of the trees at the water's edge, and sometimes you can also find wild perilla, which has a very special taste and is very good for making fish.

This time their luck was very good, not only dug up a large bush of wild garlic, but also picked up wild duck eggs, in the flowers by the water, there are many wild duck nests, there are always about ten blue-gray duck eggs lying in the hat-like nest, pick up one or two in a nest, and walk around, Yunxi actually picked up more than 30 wild duck eggs.

She plans to have a wild garlic fried duck egg in the evening, and leave the rest to see if it can hatch it, and if she can, she can develop one more industry. In this era when fat meat is more expensive than lean meat, there are not many rare game in the countryside, especially like pheasants and ducks, one has less meat, and the other is to take a lot of oil to fry it, it is better to take it to the city to sell it for money, in exchange for two catties of fat meat to eat.

Even the people in the city, there are not many rare ones, because they feel that they are too firewood and not easy to do well. Therefore, Yunxi thinks that it is better to raise these game meats in captivity, and increase the fat a little, the taste should be much better, and it should be easier to sell them.

"Sir, you can't eat it!" Yunxi was thinking about her breeding business, when she saw Zhou Han stuffing fresh daylily bones into her mouth, she was so frightened that she yelled and jumped over and grabbed it. "Sir, this is not something to be eaten, it is poisonous."

Zhou Han was also a little stunned by her yelling, and was very angry when she came back to her senses, "Stinky girl, isn't this daylily?" I've been eating it for decades and haven't died, so it's poisonous. I was shocked, I wanted to scare people to death! ”

"Sir!" Yunxi stomped his feet, "You've eaten it for decades, but are you eating this kind of fresh?" ”

Zhou Han thought about it, as if most of the colors he had eaten were not so fresh and tender, but slightly brownish. But this is daylily, yes, he can't admit it. "Isn't it obvious that you can eat dry and fresh naturally!"

"Sir," Yunxi patiently explained, "this kind of large-flowered daylily and the kind of daylily eaten are not the same species, but it should also be edible, but it must be dried before it can be eaten, and fresh colchicine is not edible." ”

Zhou Han: "What is colchicine?" Yunxi, this is daylily, not a narcissus. ”

Uh, Yunxi slapped her forehead and said something she shouldn't have said, she waved her hand, "Don't care what it is, in short, you can't eat it, you listen to me right, this kind of raw food will not only burn the mouth and throat, but also may cause death due to fever, vomiting, diarrhea, and in severe cases." ”

Zhou Han saw that what Yunxi said was so serious, and he didn't care about asking the question just now, so he was surprised: "It's really fake, Xi girl, you lie to me." ”

"If you don't believe me, ask my dad to see if I'm right?" Yunxi Dao, it is really ignorant and fearless, and they dare to eat raw daylily, which can kill people colchicine, which is comparable to the existence of arsenic.

Wait, colchicine, colchicine, oh my God! She had been thinking about colchicine for so long, and it was by her side, but she hadn't thought about it all the time, it was so stupid.

There are two sides to everything, and this kind of poison that can cure animals and dead places is not harmful to plants, not only is it not harmful, but it is beneficial.

In addition to conventional selective breeding and cross-breeding, plant breeding can also be carried out through physical mutagenesis breeding and chemical mutagenesis breeding. The first two do not need to be explained, physical methods such as "aerospace breeding" is one of them, the use of cosmic ray strong radiation, microgravity, high vacuum and alternating magnetic field and other special environment to make plant materials genetic mutation or chromosome aberration, and then lead to genetic variation in the shape of the plant body, and then breed and cultivate from which to select new varieties.

Colchicine, on the other hand, is a kind of chemical breeding and is one of the most commonly used mutagens in polyploidy species of garden plants. Since 1937, the American scholar Blacksley et al. successfully doubled the number of chromosomes in plants such as mandala with colchicine, colchicine has been widely used in cytology, genetics research and plant breeding. Until the crossing of Yunxi, colchicine is still the best agent for mutagenic plant polyploidy, because it not only has an effect on the seeds of most plants, but also on other parts, such as stem growth points, young shoots, flower buds, pollen grains, etc.

Compared with selective breeding and cross-breeding, colchicine mutagenesis is not only simple and easy to operate, but also more able to expand the mutation range than other methods, for Yunxi, that is, it can get a greater chance of getting the new flower varieties she wants.

However, although she had read examples of how colchicine could be used, she had no idea how to extract it. She only remembered that it was extracted, but how was it extracted?