Do genetically modified rice herbicides have an effect on conventional rice in the second year

Hello. The effect of herbicides is short-term, and after a period of volatilization and rain impact, it will not affect conventional rice in the second year.

Do genetically modified rice herbicides have an effect on conventional rice in the second yearThe genetically modified rice herbicide has an effect on the conventional rice in the second year, because it is genetically modified rice, so it is all on crops. There are some implications.

There will be an impact, but it will not have much impact after the next year, and the impact on crops will not be too much.

This situation is the main reason why there is no effect, because the herbicide is generally used for a period of 7 months to the last month when it is completely ineffective, so there is no effect.

In the genetically modified rice, his dominant brother still has no big impact on his conventional rice in the second year, so let's not worry too much.

If you use too much herbicide, you will develop a tolerance that may not be affected by it the next year.

Does GM Rice Herbicide Have an Effect on Conventional Shu Dao in the Second Year? Normally, it shouldn't have an impact, right?

Most herbicides have an expiration date of 5 to 7 months, and after 5 to 7 months they will be ineffective, so this situation does not have any effect.

Of course there will be an impact, if you use a genetically modified rice herbicide in the first year, then the conventional rice in the second year will also have an impact.

The genetically modified rice herbicide does not have much effect on the conventional rice in the second year, because it is the same as the soil and the refurbished.

From the perspective of scientific mechanism, the BT protein in insect-resistant transgenic rice is a highly specific insecticidal protein, which can only bind to the specific receptors of specific types of pest intestinal epithelial cells, destroy the intestinal tract of pests, and cause the death of pests. At the same time, in terms of the main nutrients, trace element content, anti-nutritional factors and safety, there is no difference between genetically modified rice and ordinary rice, and they can be eaten with confidence.

Genetically modified rice refers to rice varieties cultivated by introducing insect resistance genes and disease resistance genes of different varieties of rice or related species into a certain rice genome through transgenic technology. Such as: BT63 transgenic insect-resistant rice, etc.

Research on genetically modified rice began in the late 20th century. Until the beginning of the 21st century, there has been a debate in the academic community about the necessity and commercialization of transgenic rice.

a.Unexpected changes brought about by genetically modified technology.

The technology used to create genetically modified plants is neither precise nor accurate. In the process of transgenic operation, multiple copies of foreign genes or gene fragments are often randomly inserted into the original genes of crops, resulting in the deletion or rearrangement of the original genes. Unintended and unintended consequences that can result from these situations include:

Disruption of crops' genes and their normal functioning may lead to the production of unpredictable toxic or anti-nutrient substances;

increase or decrease the expression of toxins or allergenic proteins in crops;

Gene silencing may occur if multiple copies are present.

Therefore, the safety assessment of genetically modified rice must include possible unintended and unintended consequences.

b.Allergenicity, toxicity and nutritional value.

Whether the expression product of the transferred gene is toxic or allergenic needs to be very careful in the safety assessment of the genetically modified food. Many people eat a large amount of rice every day, so the food safety assessment must be very rigorous, and the final fate of the transferred genetic components and protein products must be thoroughly studied. This requires an assessment of the degradation of genes and their protein products during cooking, as well as their activity in the human digestive tract.

There are also special health concerns for the BT toxic protein gene and the cowpea trypsin inhibitor gene, so a thorough analysis is required.

If antibiotic resistance genes are used as genetic markers, the potential for antibiotic failure** through gene transfer to microorganisms should be an element of risk assessment.

I myself am a Ph.D. student in biology, so I will talk about genetically modified rice objectively, I hope it will be helpful to you.

Currently, genetically modified rice on the market is mainly already.

Genetically modified rice containing BT63 that has been granted a safety certificate but not approved for marketing. BT is a protein derived from microorganisms that specifically kills lepidopteran insects (such as many rice pests and diseases are the culprits), but not humans.

The body is harmless (because the human digestive system is different from that of insects, BT enters the human body and is directly and completely decomposed). Moreover, the BT protein of this genetically modified rice is mainly expressed in the stems and leaves, and almost nothing in rice, and.

After rice is ground into polished rice, it is mainly endosperm, which contains less protein, and the content of BT protein is even more minimal. In addition, it is nonsense that transgenic rice is sterile by itself, and it is nonsense to cause sterility of other rice after hybridization.

Talking about it is purely foolish. It is less likely to cause sterility in mammals and humans.

Therefore, from this point of view, genetically modified rice is harmless.

However, due to the transfer of foreign genes, there may be potential risks to the gene regulatory system of rice itself, whether there will be gene drift, and whether this gene will produce new eggs with unknown functions after mutation in an accidental situation.

White? What if there is a transposon near the insertion site, and this gene jumps with the transposon to other genomic locations? Wait a minute. In addition, before the gene regulatory network of rice itself has been thoroughly studied, it has been hastily transferred.

One foreign gene that has an impact on other regulatory networks?

In short, these risks or potential uncertainties make people worry and even fear about genetically modified rice due to the unknown.

In a word, at present, eating genetically modified rice is harmless, but there are potential risks and unknown factors. In short, genetically modified organisms are the trend of the times and are inevitable, but now the technology and scientific research need to be further improved, so don't eat it for the time being.

Top dressing can be done 5 days after weeding.

The crop is cultivated by technology.

The crop likes high temperature, humidity and short daylight, and has low requirements for soil.

The south of China is the main producing area, and the northern provinces are cultivated.

1. Seed treatment.

Seed treatment is a prerequisite in planting technology, generally before planting, the selected seeds are cleaned and disinfected in potassium permanganate solution, and then placed in a gauze bag for germination treatment, and the temperature can be maintained at about 30 sedan to germinate quickly.

2. Land preparation treatment.

In order to ensure the fertility of the cultivation medium, it is generally necessary to combine the cultivation and weeding treatment when preparing the land, and then add an appropriate amount of organic fertilizer and superphosphate, potassium sulfate and other fertilizers to the soil, mix and stir evenly, and then add a small amount of dixone for sterilization.

3. Transplanting treatment.

The germinated seedlings are transplanted into the soil, do not cultivate too densely, keep the plant row spacing at about 10 cm, hold the seedling roots by hand, insert the root system into the soil, it is best not to be too shallow, the root system should be kept completely covered by the soil, and it can also be carried out with a seedling machine, which is faster.

4. Post-planting treatment.

If there is a lack of seedlings after planting, it is necessary to replenish the seedlings in time to ensure the original planting density, and often close the source of irrigation during the growth period, and the water can be increased during the seedling period, generally only need to be submerged to one-third of the plant, and then according to the growth situation, the ammonium sulfate fertilizer can be appropriately added.

5. Weeding treatment before Biqian.

It is best to carry out weeding treatment frequently after planting, and herbicides can be applied to it one week after planting, mainly oxatrione, and when the growth is better, benzylthioyl herbicides can be added to the fertilizer to mix and spray to avoid weeds affecting the normal growth of plants.

Genetically modified rice is a technology that introduces synthetic foreign genes into rice to improve some of its traits. At present, genetically modified rice is mainly used in the following aspects:

Increase the nutritional value: Improve the nutritional value of rice by increasing the content of certain important nutrients such as vitamins and minerals.

Production of functional rice: For example, the production of rice with functions such as medicinal and biotechnology production, such as for the production of human insulin and vaccines.

Research on basic genetic issues: The use of transgenic rice can further study the basic biology and molecular mechanism of rice.