Genetically modified food is a strain of genetically modified organisms obtained by transgenic biotechnology (transgenic biotechnology refers to a new breeding technology that introduces foreign genes into the genome of a specific biological species and makes it effectively express the corresponding products). The food produced by using this genetically modified organism as direct food or raw material is called genetically modified food.
Extended data:
Use of glyphosate:
Glyphosate is a non-selective and residue-free herbicide, which is very effective against perennial rooted weeds and widely used in rubber, mulberry, tea, orchards and sugarcane fields. It mainly inhibits the enolpyruvate shikimic acid synthetase in plants, thus inhibiting the conversion of shikimic acid to phenylalanine, tyrosine and tryptophan, interfering with the synthesis of protein and leading to plant death.
Glyphosate is absorbed by stems and leaves and delivered to all parts of plants, which can control more than 40 families of plants such as monocotyledonous and dicotyledonous plants, annual and perennial plants, herbs and shrubs. After being buried in the soil, glyphosate quickly combines with metal ions such as iron and aluminum and loses its activity.
Initially applied to control weeds such as thatch in rubber orchards, rubber trees can be peeled 1 year in advance and the yield of old rubber trees can be increased. Now it is gradually extended to forestry, orchards, mulberry gardens, tea gardens, rice and wheat, rice tanker farming and so on. Various weeds have different sensitivity to glyphosate, so the dosage is different. Such as barnyard grass, green bristlegrass, cowherb seed, crabgrass, pig gizzard and other annual weeds, the dosage is 6 ~ 10.5 g/ 100 m in terms of effective components.
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Baidu encyclopedia-genetically modified food
Baidu encyclopedia-genetically modified food