Because kiwi fruit itself tastes very good and is very nutritious, it is sought after by many people. More people buy it, it has naturally become a good choice for growers, and many places in China now have kiwifruit planting bases.
In fact, this fruit was originally a very niche fruit, it is native to Yichang City, Hubei Province, is a wild fruit.
You may not be able to tell the difference between New Zealand kiwifruit and kiwifruit, but they are actually the same fruit, although kiwifruit is native to China, but it was first cultivated and domesticated in New Zealand.
At the beginning of the 20th century, nursery traders in New Zealand discovered the commercial value of this fruit, and under their promotion, kiwifruit went to the world under the name of "kiwifruit", and also got more Chinese likes.
Many of the kiwi varieties that we grow now are still passed down from New Zealand, but The Chinese fruit, of course, must be called the Chinese name, so the name "kiwifruit" is widely known.
However, now kiwifruit seems to be on the cusp of the storm, and on the Internet, many people claim that they will not buy kiwifruit again.
The reason why kiwifruit suddenly annoys people is mostly because of the kiwi fruit that cannot be eaten many times.
And the situation is roughly the same: when buying hard bangbang, it is difficult to ripen after taking it home, and once it becomes soft, it is directly bad and cannot be eaten.
Jump shaped fruit
Depending on the ripeness of the fruit, it can be divided into jump fruit and non-jump type fruit. Simply put, after the fruit matures and stops growing, the respiratory rate of the jump-shaped fruit will suddenly rise, allowing the fruit to age rapidly.
Illustration: Changes in growth and respiration of the jump-shaped fruit
The picture above is a typical growth process of a jump-shaped fruit, starting with a gradual decrease in the respiration of the fruit, and then suddenly increasing, rather than the conjugation of the fruit, the respiration rate of the fruit is decreasing throughout its life cycle.
This form of expression of fruit directly affects the process of picking and storing fruits, especially the leap type of fruit, its picking and storage is very exquisite, you can not wait until the fruit is ripe before picking.
The kiwi fruit is a typical leaping fruit, and it is still relatively strong, and it will decay very quickly after ripening.
For the jump fruit, the merchant's practice is to pick it in advance to allow enough time to sell. So the kiwifruit we bought needed to ripen because it wasn't ripe when it was picked and sold.
So why is the kiwi fruit you bought "soft" and directly broken?
In fact, the reason is very simple, it is picked too early, or it is "early harvest", so that it can not enter the stage of sharp acceleration of breathing rate.
The secret of ripening fruit
We know that the ripening of the fruit is regulated by ethylene, which is why we are accustomed to placing ripe fruits (such as bananas) next to the kiwi fruit we just bought, because the ripe fruit contains more ethylene.
But one thing is not the same as our conventional understanding, in fact, any ripening fruit is not by external ethylene, but by its own release of ethylene, external ethylene is only a role of assistance.
The problem is that if the fruit wants to release ethylene on its own, it must be relatively mature, and it can have enough ethylene to eventually mature itself.
To use a less appropriate metaphor, the ripening process is a bit like using a key to open the door to the ripening of the fruit, except that there are two doors to ripening, and the outer ethylene is the key to the second door.
If the first door is closed, even if you provide more vinyl, you will not be able to open the second door, and this first door will be opened by the fruit itself.
When we buy "early harvest" kiwifruit, in fact, it is useless no matter how you ripen it, it becomes soft, it really can't be eaten, because it is broken.
And then there's the question, how do we stop fruit from entering the fruit?
The breathing process that we've been mentioning earlier is the key, and you either lower the temperature and let the fruit's activity decrease and reduce breathing, or lower the oxygen so that the fruit can't breathe properly.
These two points are also the solution for storing fruit, for the leap type of fruit, immediately after picking into the cold storage, it is difficult to mature on its own, and then it is transported and sold.
The current kiwi fruit is indeed a bit ruined by the "early harvest", so CCTV has exposed the situation of the "early harvest" of the kiwi fruit and warned the black-hearted businessmen to do their own thing.
The fruit destroyed by the "early picking" is far more than the kiwi fruit, you will find that the once hot black Brin is now slowly disappearing from our vision, it is the fruit that was completely destroyed by the "early picking", and in the same case, there are a lot of jumping fruits such as durian.
As for why these fruits are willing to be destroyed by "early harvesting", the reason is that they are blinded by immediate interests.
Why "pick" fruit early?
In fact, the immediate benefits of "early harvesting" are very obvious, for example, it can avoid centralized listing, you pick earlier than others, your fruit is less likely to rot on the tree, and may sell at a better price.
In addition, the risk of fruit affected by the weather can be reduced, such as red heart kiwi fruit is generally picked in August, but this time is the season of heavy rain and typhoons, so if you pick one month in advance, you can avoid these risks.
In addition, "early picking" fruit is also easier to store, it is almost not rotten, how good, the merchants themselves have no risk.
Combining these factors, merchants are more willing to harvest fruit early, and fruit growers are more willing to pick in advance, but everyone is staring at these immediate interests, but forgetting that doing so is destroying the entire fruit market.
At last
There is a very simple way to distinguish whether it is "early harvesting", that is, the size of the fruit, the general fruit is obviously very small, then do not covet cheap good, it is likely to be unable to ripen the "early fruit".
Of course, kiwi fruit has not gone far on the road of "early harvesting", it can still be rescued!