99% of large cherries are reminders? Experts point out that the use of security 上海品茶龙凤论坛 guaranteed leavening agent
Every summer, a variety of seemingly certainty "science" with big red cherry sync "on the market."
Recently, a video about the quality and safety of cherry spread on the Internet, known as "99% of the market cherries are used leavening agent.
Normal cherries only grow to 12-13 grams, leavening agent may be doubled. If there is no cherry nuts, hollow is to use the medicine …… "often named leavening agent what is what, really there are rumors of miraculous it? Cherry head of size, in the end with what factors do? To this end, the reporter visited agricultural experts in the field, conducted a consultation on issues of concern. not yet found the food safety incident "that caused swelling agent is a plant growth regulator. Cherry growth 上海新茶私人工作室 process, in order to enhance the rate of pollination and fruit set in a manner greenhouses planted cherries typically requires the use leavening agent; and in open field cultivation is no need to use a cherry.
"Agricultural product quality safety risk assessment of the Ministry of Agriculture and Rural Laboratory (Hangzhou) researcher Wang Qiang told reporters that at present, the mainstream open field cultivation pattern of cherry, Based on projections, commercial cherry indeed possible to use a swelling agent of plant growth regulators, but utilization should be less than 50%.
Fruit and vegetable products in the production process, the plant growth regulator is how to play it? "Plant growth regulators and plant hormones have a similar effect can stimulate plant cell division, growth, except that the 上海水磨论坛is plant growth regulator is done by scientists synthesized and modified to make it more active than plant hormones. "researcher at the Institute of vegetables and flowers Chinese Academy of Agricultural Sciences Xu Donghui said.
On the management side, beginning in 1997, in accordance with the "Pesticide Management Regulations", plant growth regulators are managed as a pesticide.
According to the Ministry of Agriculture and Rural relevant person in charge, at present, my country has made the registration of plant growth regulators nearly 40 species.
More than 100 international registration to use.
Approved the registration of plant growth regulators should develop technical specifications for safe use, including medication period, dose, method of application, use of, precautions and safety interval, etc., and clearly marked on the product label, guide farmers and reasonable use. In addition, the registration of the product should be carried out a series of residue trials, and to develop residue limits in accordance with residue trials and other data and rational use of guidelines to ensure the quality and safety of agricultural products.
Since 2015, the Ministry of Agriculture and Rural agricultural plant growth regulator residual risk assessment, the results showed that the average residual value of plant growth regulators only – mg / kg, dietary exposure risk is low, product quality and safety is guaranteed.
Experts said that in terms of security, since food safety incidents due to residual plant growth regulator did not occur until the causes of the international community.
In my country, the application of plant growth regulators over agricultural products to consumers is also very safe.
Compared with other pesticides, plant growth regulators, although included in the scope of pesticide management, pest control, but not cure pesticide weeding in the traditional sense, its products are low toxicity, some even as almost non-toxic and does not need to be listed as a developing residue limits exemption substance.
The common fruit enlargement Forchlorfenuron toxicity (lethal dose greater than 4918 mg / kg) than saline (lethal dose of 3200 mg / kg).
Further, since a minute amount of a plant growth regulator, easy to produce excess reaction, farmer can not use a large amount, and therefore lower residual plant growth regulators. Integrated fruit size is determined by many factors, then, the size of cherry fruit and what factors, leavening agent to make the fruits of "doubling" it? According to experts, big fruit seedless cherries and cherry varieties and characteristics, cultivation practices and the use of plant growth regulators have a relationship.
Xu Donghui, he told reporters that "the United States early" is the biggest fruit of a cherry varieties grown at present among the varieties of cherry fruit with a large, plump and sweet taste and other characteristics. Grown under normal circumstances, "the United States early", is 8-12 grams of fruit weight, special cultivation methods can reach 16-20 grams. "Breeding of sweet cherry ‘red’, normally up to 11-15 grams of fruit weight from drug regulatory perspective, it has been reported in the literature, growth regulator gibberellic acid treatment by plant cherry, fruit can be improved weight of from about 15% to 30%, limited swelling effect. "Qiang said.
Well, it means that after a nuclear-free cherry swelling agent handle it? Wang Qiang said that this statement too absolute.
Despite reported in the literature, a certain concentration of gibberellic acid treatment after the formation of hollow core cherries, but low concentrations of gibberellic acid treatment is not necessarily 100% stone-free.
In addition, the cause of Cherry also has a natural hollow or other possible abortion, not necessarily because of drug use gibberellic acid.
Xu Donghui explained that in order to improve pollination and fruit set cherry, fruit and other plant growth would be administered GA swap in flowering, and may cause seedless fruit, nuts and other fruits without phenomenon, but this does not affect the safety of cherries.