Super Dimension Technology Era

In 2015, the Spring Festival in February had just passed.

Spring plowing has begun in the Lingnan area, especially in Qiongzhou, which has a tropical climate. Rice has been planted for several months.

The Agricultural Research Institute of the Academy of Sciences has a specialized tropical plant research institute in Qiongzhou.

Mr. Yuan, wearing a straw hat and dressed as an old farmer, was inspecting the earing of rice on a large experimental field.

But looking at the condition of this large rice field, he frowned and turned his head: "Xiao Wang, the rice transplanting in Qiongzhou is from January 15th to 20th!"

Assistant Xiao Wang nodded: "That's the time."

Several other researchers also discovered that something was wrong. According to general conditions, rice will begin to enter the heading stage about one month after transplanting.

The rice in Qiongzhou was planted from January 15th to 20th. Now it is February 29th, but this large rice field has not yet entered the heading period.

"Could it be the impact of this year's weather?" one of the researchers said.

Mr. Yuan shook his head: "Even if the weather is lower than last year, it will not have much impact on Qiongzhou. There must be some other reasons."

Immediately, everyone took samples from the experimental field and brought them to the research institute for laboratory analysis.

While Mr. Yuan was paying attention to the laboratory analysis, he also asked the staff to pay attention to the reception situation in various places in Qiongzhou.

Laboratory of Qiongzhou Agricultural Research Institute.

Researchers are conducting comprehensive laboratory analyzes on hundreds of samples.

Through a high-precision microscope, Hu Guangyi discovered that some fungal communities were attached to the rice straw tissue.

The fungal community shows that the conidiophores are unbranched, 3-5 in clusters, protruding from the host epidermis or stomata, 80-160×4-6μm in size, with 2-8 septa, the base is slightly enlarged, light brown, The color is light upward, the top is curved, and conidia are born on it.

Conidia are colorless, pear-shaped or club-shaped, often with 1-3 septa, size 14-40×6-14μm, and foot cells at the base.

Judging from the morphology, it should be a typical Pyricularia oryzae Cav.

Pyrosporum oryzae causes rice blast, also known as rice fever, commonly known as burning blast, hanging head blast, neck blast, etc. It is an important rice disease worldwide. Rice blast is the most widespread and common fungal disease of rice in the world. .

Under natural conditions, Magnaporthe oryzae only infects rice and is an epidemic spread by air currents.

Hu Guangyi thought strangely to himself. Logically speaking, the disease resistance of the new varieties in the Qiongzhou experimental field was quite good. With the use of preventive pesticides, how could so many bacterial colonies be found in the straw tissue?

"Li Can, what is the level of Pyrosporum oryzae in your samples?"

"Guangyi, is it possible that your sample also contains a lot of Pyrosporum oryzae?" Li Can turned around and asked.

Hu Guangyi nodded and replied: "The 12 samples in my group all contained very serious Pyrosporum oryzae. According to the prevention and control standards of our experimental field, such a serious outbreak of Pyrrhosporium oryzae is impossible."

Then the test analysis results of the other eight groups came out. Hu Guangyi and Li Can took the test sheets and frowned.

Their experimental field tested a total of four new varieties this year. However, none of these four varieties were spared and were all infected with densely packed Pyrosporum oryzae.

"Li Can, you lead people to conduct in-depth research on these Pyrosporum oryzae, and I will report to Director Yuan."

"good."

Looking at Hu Guangyi's hurried back, Li Can quickly turned around and ordered: "Prepare for genetic testing."

He suspected that there was a mutant strain of Pyrosporum oryzae, and rapid genetic testing was carried out non-stop. Li Can's heart sank as he looked at the test results one after another.

Pyrosporum oryzae can be divided into 7 groups and 128 physiological races. However, the results shown on the test sheet showed that the Pyrosporum oryzae in front of me was not one of the 7 groups and 128 physiological races.

In other words, this is a mutated variety.

"Try the compound fungicide of Rebis and Kasho Rice."

"OK."

After half an hour, the effect of Rebis and Jishou Rice was not obvious. You must know that the control effect of this compound fungicide on the previous Pyrosporum oryzae is generally more than 95%, and it is currently the first choice for the prevention and treatment of rice blast. Potion.

Li Can's heart became sinking and he quickly ordered: "Try other fungicides."

"Currently preparing."

The effect of propylthionamidazole solution is not obvious.

The compound fungicide of carbendazim and sulfur achieves a killing effect of about 40 to 60%. However, after the second generation of mutant Pyrosporum oryzae, the killing effect begins to become less obvious.

The compound fungicide of tricyclazole and sulfur also has a certain killing effect on the first generation, but starting from the second generation, the effect plummets.

Even if several fungicides are used alternately, the mutant Pyrosporum oryzae will develop resistance after three or four generations.

Mr. Yuan, who had just arrived, looked at the laboratory reports and Li Can's disinfection experiments and knew the seriousness of the matter.

He has contacted agricultural technology stations across Qiongzhou and found out that the problem is not limited to the research institute's experimental fields, but that this situation occurs throughout Qiongzhou.

"Guangyi, Li Can."

"director."

"Test all the fungicides on the market to see if any of them can suppress the outbreak of rice blast." Mr. Yuan ordered seriously.

"no problem."

Mr. Yuan came to his office, opened the login program of Nanke Dream World, and then quickly put on the brain wave glasses.

Nanke Dreamland - City of Truth.

Inside the Agricultural Research Institute.

He immediately summoned everyone from the Agricultural Research Institute and reported the matter to Huang Mingzhe.

…

Huang Mingzhe, who was at the Phoenix Project research base at this time, immediately received a reminder from the ghost.

After taking out his mobile phone, he found that it was an urgent report from Mr. Yuan. After browsing it at a glance, Huang Mingzhe had already guessed the reason.

He immediately found an office, logged into Nanke Dream World directly through his brainwave glasses, and came to the Agricultural Research Institute of Truth City.

At this time, the Agricultural Research Institute was already buzzing with people, and it was obvious that everyone was aware of the seriousness of the matter.

You must know that rice accounts for a very important proportion of China's grain. China's annual grain output is about 610 million tons, while the annual rice output is about 200 million tons, which accounts for 30%.

In addition, the current domestic grain self-sufficiency rate is between 80 and 85%. Once the rice harvest is completely eliminated, the domestic grain self-sufficiency rate will drop to between 50 and 60%.

Even if there is a food reserve, this gap is very terrible.

While listening to the discussion of an agricultural expert, Huang Mingzhe asked Ghost to investigate the rice situation across the country. At present, rice has not been planted in the north and northeast, and the investigation is mainly in Lingnan and southwest.

Sure enough, upon investigation, we found that rice blast cases of varying degrees occurred in various places.

Suddenly he shifted his attention to Southeast Asia and Tianzhu, asking Ghost to investigate the situation in these areas.

As tropical areas, rice planting in these areas started earlier than most areas in the country, similar to Qiongzhou. If these areas are also infected with rice blast, it is estimated that they have entered a major outbreak stage.

Sure enough, as one piece of information was picked up by the ghost, the rice in the entire Southeast Asia and Tianzhu regions suffered from very serious rice blast disease.

Huang Mingzhe reported this situation to Mr. Yuan and other experts. They frowned. The scale of the infection was really terrifying.

Once grain exporting countries such as Southeast Asia and Tianzhu are seriously affected, coupled with the current international grain prices, problems will arise throughout Asia, and they will be very serious problems.

However, the super drug resistance of the mutant Pyrosporum oryzae has left many experts at a loss.