After running with Wang Shiwei for most of the day, Chen Cheng found that the condition of lotus roots in most towns and villages in the entire county was similar to that of their village.

However, Li Dong is very powerful, and under his strong promotion, all towns and villages have begun to implement Chen Cheng's technical methods.

At the end of the inspection, Wang Shiwei had some smiles on his face.

Li Dong also had a smile on his face.

Chen Cheng found that his cold was almost cured, so he proposed to go back to the city with Wang Shiwei and them.

Under the promotion of Wang Shiwei and Li Dong, the lotus root fields in Xiting County should be implemented in full accordance with his technical formula, so this year's lotus root production should be able to be maintained.

However, the harm of brown streak bacteria has not completely disappeared, even if all fields are plowed and sanitized after this year's harvest, there is no guarantee that brown streak bacteria will be eliminated.

For example, the lotus leaves in that village have not been destroyed, or there are still this year's lotus roots left in the farmland.

There is still a chance of recurrence of brown streak in the coming year.

Chen Cheng wants to continue to overcome this problem and strive to develop a variety that can be genetically immune to brown streak bacteria.

But there is no way to do research in the village, and it is difficult to explain it.

So he had to go back to school.

According to Chen Cheng's request, Li Dong collected a large bag of lotus seeds from the peasants and put them in his suitcase.

Back in the dormitory, Wang Kai rushed up first.

"Lao Chen, what delicious food did you bring us when you went home?"

Chen Cheng put a big bag of lotus seeds on the ground and said, "Come on, this is a good thing, it depends on whether your teeth can work." ”

Wang Kai grabbed a handful of off-white lotus seeds and asked, "What is this?" ”

"This is a lotus seed, I will take it back for improvement experiments."

Wang Kai put them back with some disappointment.

"Brother Kai, how is the matter with the factory?" Chen Cheng asked.

Wang Kai said happily: "Lao Chen, speaking of this, brother, I really admire you." If you want to say that before I put it, I will go to President Zhao, then I guess I won't even be able to enter the administrative building.

Now that I have a relationship with you, I went to his office, and he poured me tea himself. ”

Chen Cheng looked at Wang Kai's showing off and felt that he was a little ridiculously naïve.

"Well, you go on, don't talk about drinking tea, get to the point." Chen Cheng held back a smile and said.

After I explained my intention to Principal Zhao, Principal Zhao couldn't close his mouth with a smile. He not only agreed to take out the 1.5 million dividends, but also agreed to put the dividends at the end of the year into the factory. The factory will first use the scrap tin house you said. ”

Chen Cheng nodded and said, "The factory has to be sorted out as soon as possible, how about the equipment?" ”

Wang Kaidao: "The equipment has been subcontracted to different processing plants according to the drawings after your splitting, and the total cost is less than 600,000 yuan. Delivery is available after 10 days. ”

"Yes, I don't have to worry about Brother Kai's work." Chen Cheng patted Wang Kai on the shoulder.

Wang Kai smiled flatteringly, stood up by himself, pressed Chen Cheng into the chair, and then said while helping him pinch his shoulders: "Old Chen, when this factory is opened, can I be a vice president of sales or something?" ”

Chen Cheng frowned and said, "You're so interested in running a company?" ”

Wang Kai immediately confessed: "It's not that you run a company, it's mainly that my buddies like the feeling of being a leader." ”

Chen Cheng said with a smile: "As long as you run the factory well in my direction, not to mention the vice president of sales, even the general manager can let you be the general manager." ”

"Really?!" Wang Kai's eyes widened.

Chen Cheng closed his eyes and nodded slightly.

"Lao Chen, I love you, Mo Da."

“GUN！”

......

The next day, Chen Cheng arrived at the laboratory very early.

He called up the system and scanned the lotus seeds into the system.

"Genetic analysis!" Chen Cheng said directly.

[Late-maturing lotus root variety seeds, yield of 3000-4000 kg per mu, 2-3 years old, flowering period of 15 days, susceptible to infection with germs]

"Analyze the causes of susceptible bacteria."

[Because lotus root can reproduce both vegetatively and sexually.] However, due to the complex sexual reproduction process of lotus seeds, vegetative reproduction is mostly used in the normal planting process. Vegetative reproduction does not play a role in the competition of superior and inferior genes, therefore, the degree of gene optimization of this lotus root is very low.

It is very difficult for lotus seeds to develop into lotus root plants. This is because it has a hard protective shell on the outside.

Under non-human intervention, a lotus seed can be buried in the soil for tens or hundreds of years without germination.

When artificial breeding, the outer shell of the lotus seed must also be destroyed in order for it to germinate and grow normally.

This is a protective mechanism for the lotus root, but it also limits its sexual reproduction.

Because lotus seeds are troublesome to cultivate, most of the planted lotus roots are propagated with nutrients.

Farmers bury the lotus root directly in the mud when planting, and it will grow rhizomes in a few days.

But as the system says. This kind of artificial vegetative reproduction method cannot achieve the selection of superior and inferior genes in a competitive state. As a result, after long-term cultivation of lotus root, the genes are not improved, but will deteriorate.

"It seems that the fastest and most effective thing is to directly give the lotus root a genetic improvement." Chen Cheng said secretly.

"If you want to realize the lotus root's own defense against brown streak bacteria, what can you start from?" Chen Cheng asked.

[Brown streak pathogens are commonly found in plants with poor growth environments, such as low-lying dampness, poor drainage, canopy in the field, warm climate and other environments, and this is the most suitable growth environment for lotus roots]

[The main ways for plants to be infected with brown streak bacteria are:

1. Directly through the stratum corneum of the plant epidermis, the fungus penetrates the epidermal layer of the plant tissue by the attachment organ with infected nails, breaks through the protective tissues of the plant - stratum corneum, wax layer, epidermis and epidermal cells and invades the host;

2. Through plant wounds, such as wounds, leaf marks, fruit marks, etc. left by agricultural operations or insect gnawing. Among them, the virus can invade through the wound]

[Starting from these two aspects can effectively reduce the spread of brown streak bacteria]

"That is, to improve the defensive ability of the lotus leaf?" Chen Cheng asked.

[Yes.] The lotus leaf itself has a micro-nano layer, which can continue to thicken this protective layer through genetic improvement.

Regarding the micro and nano protective layer outside the lotus leaf, the most intuitive thing is the phenomenon of many small water droplets rolling on the lotus leaf after the rain in summer.

The surface of the lotus leaf is attached to countless micron-sized waxy papillae structures. When these papillae are viewed with an electron microscope, it can be seen that many nanoscale particles similar to their structure are attached to the surface of each micron-sized mastoid process.

This nanoscale particle is called the micro-nano dual structure of the lotus leaf.

It is precisely with these tiny dual structures that the contact area between the surface of the lotus leaf and the water droplets or dust is very limited, so the water droplets roll on the leaf surface and can take away the dust, and the water does not stay on the surface of the lotus leaf.

Romance

That is to say, Chen Cheng now wants to use genetic improvement to make this micro-nano structure trait of lotus leaves more obvious.

"Using micro and nano structures as the dominant traits, the optimal offspring can be simulated." Chen Cheng said.

With his order, the supercomputer began the rapid iterative cultivation of lotus roots.

After five minutes, the system beeps up.

[The simulation is completed, when the thickness of the micro and nano structure of the lotus leaf reaches 3.5nm, it is the optimal trait, and exceeding this thickness will affect the normal photosynthesis and respiration of the lotus leaf]

"Then simulate whether the plants in this genetic state can effectively resist the invasion of brown streak bacteria."

【Okay】

After a minute, the system gave an answer.

[Under this trait, in the absence of external damage, it can resist the infection of brown streak bacteria with a concentration of less than 5ml per square meter]

Chen Cheng calculated slightly, the concentration of this germ was almost visible to the naked eye. Unless the brown streak germs are sprinkled in the field, there will be such a high concentration.

That is, in conventional planting, the probability of this variety of lotus root being infected with brown streak disease is extremely low.

He was quite satisfied with the result.

Just as Chen Cheng was about to start cultivating in the cultivation cabin, Ding Tao knocked on the door outside.

"Lao Chen, the people from Huanong Group are looking for you."

Chen Cheng was shocked.

Huanong Group? Chanda's old club?

What did they come to me for?