At present, agricultural development has stagnated, not only in terms of crop seeds, but also in the field of chemical fertilizers, or in the field of pesticides, which have basically reached a bottleneck period.
For example, in the field of chemical fertilizers and pesticides, our current research in the field of chemical fertilizers has basically stalled. The effectiveness of chemical fertilizers has been maximized. It is currently difficult to develop new fertilizer formulas that can significantly increase crop yields.
At present, the research field of chemical fertilizers is mainly focused on improving the utilization rate of chemical fertilizers, reducing environmental pollution, and increasing crop yields.
The thinking of the entire industry, including the entire society, has also changed, and it has begun to pursue green environmental protection and sustainable development. For example, primitive fertilizers such as bio-organic fertilizers have begun to regain their youth.
As for the field of pesticides, the current development cannot be said to be stagnant, it can only be said to be very slow. Because people attach great importance to food safety, they are becoming more and more cautious about the application of pesticides on agricultural products. More and more agricultural products are beginning to focus on ecological and non-toxic products.
There is no pollution, and there are no pesticides anymore, so this will also cause some farmers to be reluctant to use pesticides.
Of course, pesticides are indispensable in agricultural production, and they play a huge role in preventing diseases and pests. But now pesticides have changed from the original goal of killing pests and diseases to low toxins, low residues, no pollution, decomposable, etc.
Features.
Even now, some so-called biopesticides have begun to be developed, which are completely pollution-free, but they cannot be applied on a large scale.
Then there are the seeds of crops. In recent decades, crop seed technology has made huge progress, from the original single selection method to the use of chemical soaking to increase the germination rate of seeds and improve the resistance of seeds to diseases and insect pests.
Then came the hybrid technology. It should be said that hybrid technology appeared very early. As early as a long time ago, your ancestors learned to use the hybridization between the same crops to cultivate and domesticate better crop seeds.
Nowadays, hybrid technology is even more advanced. Before applying new technologies, hybrid technology needs a new lease of life.
For example, some genetically modified organisms may have weaker vitality and adaptability, thereby occupying a dominant position in the natural environment, squeezing the living space of other species, and even leading to the extinction of some species.
And it will also raise some ethical issues, such as whether it conforms to the laws of nature, whether it will cause harm to the ecological environment, etc."
That may be because people and society generally have deep misunderstandings about genetically modified technology and genetically modified crops, which prevents the technology from being promoted on a small scale.
Through crosses between the same varieties, new genetic variations are created, from which the previous generations with excellent traits are selected for regression breeding and selective breeding. The steps involved in this technology, such as parent selection, hybridization, selfing, and young generation selection, cannot be
It is said to be an important part of modern seed technology.
"Similarly, whether the advantages and disadvantages of gene editing technology and transgenic technology are sufficient or small, they also face the same problems as transgenic technology."
With such a small population, the demand for food is undoubtedly huge and unmet. Who will feed those 10 billion people is also a problem faced by the whole world.
As the population continues to increase, the scale of cities continues to shrink, and desertification and saline-alkali land continue to expand, resulting in more and more land available for cultivation around the world.
There is no haploid breeding technology, which uses methods such as haploid induction and doubling to obtain homozygous plants with excellent traits. The process of haploid breeding technology includes steps such as haploid induction, haploid identification and doubling.
Even now, nearly one billion people in the world are hungry. Global warming has led to the emergence of natural disasters, and regional instability has led to fewer and fewer people affected by disasters, and the number of hungry people is also increasing.
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The more controversial genetically modified technology cannot be used to introduce genes with excellent traits, such as insect resistance, disease resistance, drought tolerance, cold tolerance, herbicide resistance, etc., to make crops more adaptable to the environment, increase yields and
Quality. For example, genetically modified rapeseed cannot increase the invasion of pests and diseases and reduce the yield and quality of rapeseed.
And you cannot use genetically modified technology to breed new genetically modified crop varieties with inefficient reproduction and low yields. Those varieties cannot reproduce and produce more slowly, thereby increasing the use of seeds and the demand for agricultural labor, and reducing the cost of agriculture.
Cost of production.
You can’t even use genetically modified technology to develop agricultural products with new characteristics, such as products with low nutrition and low added value, thereby increasing the added value of agricultural products. For example, genetically modified technology cannot improve the protein, oil and other nutrients in plants.
content to provide people with better quality food.
This is the case now, but when the population reaches 10 billion by the middle of this century, we know that not many people will go hungry."
According to the United Nations, the world's population is expected to exceed 10 billion by the middle of this century, around 2059.
Speaking of that, Wu Hao paused for a moment, then waved his hands at everyone and said with a smile: "You said so little, you are not trying to whitewash the genetically modified technology.
Having said that, Wu Hao emphasized: "But in your opinion, genetically modified technology and gene editing technology are the key to future agriculture and the development direction of future agriculture.
Another example is the use of molecular marker technology to track and select the regression of target traits to improve the error and efficiency of selection. For example, time markers control genes that control important traits such as disease resistance, insect resistance, and drought resistance. Or the use of professional tissues or cells.
Regenerate in vitro culture to obtain sexual reproduction lines or oligoploid plants, from which haploid or heptaploid plants with excellent traits are selected.
It's just that, although genetically modified technology has been around for decades, except for you, the development of this technology has also stalled this year.
At present, the biggest problem is its danger. Although there are not many studies that have proved the danger of genetically modified technology, because the development of this technology is still short, there are still some problems.
It is no wonder that the public is more concerned about the issue. The use of genetically modified technology may lead to genetic contamination. For example, mixing genetically modified corn with non-genetically modified corn may produce new traits that are stable in the previous generation. That will only destroy the non-genetically modified corn.
The stability of the properties may also affect food hazards and the ecological environment.
First of all, the rational use of genetically modified technology can also minimize pollution and improve the agricultural ecological environment.
As the world's population continues to grow, the demand for food is also expanding.
It is true that genetically modified technology does have certain problems.
