Recently, a small video screen exploded the circle of friends. A grape farmer said:
Seedless grapes were coated with birth control pills, and the children did not eat well.
I don’t eat it myself, nor do I give it to my children.
They eat.
It was a bolt from the blue! Give [them] what you don’t eat and what your children don’t eat?
The old farmer’s “they” refer to us consumers who do not grow grapes and do not know the “inside story”?
What the hell is going on? Today, Dr. Clove invited a doctor of food safety to tell you what is going on with this [contraceptive grape].
Grape [contraception]? Let’s start with how the grapes [get pregnant]
Only when the grapes are pregnant and form fruits can we eat sweet and sour grapes.
The process of fruit formation in most plants, including grapes, is as follows:
Plants have pistils in their flowers. After pollination (fertilization), ovules become seeds, ovaries become pulp, and the outer wall of ovaries becomes pericarp.
However, under some special circumstances, some plants can develop their ovaries without fertilization.
The fruit thus grown has no seeds, or only some poorly developed seeds. Common ones are bananas, oranges, watermelons, grapes, tomatoes, etc.
Scientists study seedless fruits, of course, not only for everyone to eat [convenience]. Seedless fruits have many advantages, such as:
- Seedless fruits usually have more nutrition and sugar. The output is more stable. More storable.
How did the seedless fruit come from?
To produce seedless fruits, there are usually several methods:
1. Using hybridization techniques
Through hybridization and continuous breeding, including bananas, watermelons and grapes, seedless varieties can be obtained by triploid technology.
There are also seedless varieties obtained by screening natural mutant plants, such as tangerine, kiwi fruit, grape, pomegranate, honey pomelo, etc.
2. Use some means [to deceive] flowers
Some fruits use special things to treat flowers so that they [feel] that they are fertilized, and then they begin to develop fruits.
For example, tomatoes can be deceived by potato pollen or treated with 2, 4-D and naphthylacetic acid to obtain seedless tomatoes.
For example, seeded grapes are not pollinated, but seedless grapes can be obtained by treating them with gibberellin, a plant growth regulator.
Therefore, the seedless grapes you eat may be either varieties cultivated by hybrid technology or obtained after treatment with plant growth regulators.
Is gibberellin used to deal with grapes a contraceptive?
Of course not!
Gibberellin is a natural plant growth regulator and a [plant hormone]. Fertilized seeds can synthesize gibberellin by themselves in the process of development, which can promote the development of seeds and stimulate the growth and development of fruits at the same time.
However, the seedless fruits we eat are unfertilized fruits without gibberellin. What should we do?
At this time, fruit growers can use exogenous gibberellin to [help] plants bear fruit. This is how some seedless grapes are obtained.
Take grapes as an example. More than 80% of the grape varieties in China are Kyoho. If gibberellin is not used, the grapes grown from this variety vary in size and often have sparse fruits. Only after gibberellin treatment can large, large and uniform grapes be obtained.
So, a new question arises, is gibberellin, as a [plant hormone], harmful to human body?
No.
In fact, [plant hormones], including gibberellin, are quite safe and are used every day in Europe and the United States, but the varieties and amounts allowed are different.
The effect of [plant hormone] is very wonderful. If you use it too much, it will have the opposite effect. Therefore, fruit growers will not use it too much. This is called [self-limiting].
Moreover, these plant hormones are mainly used before and after flowering for a period of time, and when harvested, they are almost undetectable.
Therefore, everyone can safely eat seedless fruits.
The health headline wants to say to everyone
There are too many rumors, such as strawberries being ripened, watermelons being injected, and ricefield eels being fed contraceptives (are these true? These rumors always take advantage of everyone’s fear, even in order to incite forwarding, and also highlight information such as [for the health of family and friends, be sure to tell others] in the rumors.
This has even more induced everyone to “do bad things with good intentions”. Many people have become accomplices in the spread of rumors without realizing it.
Every time such rumors appear, they will trigger a wide range of spread. In addition to causing public panic, a large number of farmers and farmers will be damaged.
Therefore, whenever you see similar information, please don’t rush to forward it first, but take a long mind and think about it. Is such information true? Is it a rumor?
Most of the time, it is between our thoughts whether to choose the golden eye, identify the truth, or to do evil for the tiger and spread rumors.
If you have mastered this method of distinguishing rumors, please also recommend it to your friends.
With fewer rumors, we can live a cleaner life. Farmers and farmers who are hurt by rumors every year can also suffer less losses. This is also a merit, don’t you think?