-
When there's a cacophony downstairs that upsets you, you may smell a refreshing smell and you'll immediately know it's the lawn being mowed downstairs. When mowing the lawn, it gives off a sweet and strong smell。When it floats into your nostrils, somehow, it's as pleasant as green.
Do you know what we really smell when we breathe in freshly cut grass? Why do we like it so much?
Odor: Green leaf volatiles
Chemically, this typical lawn odor is a mixture of carbon compounds in the air called green leaves (GLV). Plants often release these molecules when they are damaged by insects, infections, or mechanical forces such as lawn mowers. The form of green leaf volatiles produced by plants varies slightly depending on what happens to them.
A 2010 study published in the journal Science found that tobacco leaves that were punctured and rubbed by insect saliva released different volatile compounds than tobacco leaves that were punctured and scrubbed with water.
Green leaf volatiles are small and can fly into the air and nostrils. In some cases, they can be detected up to two kilometers from the point of origin. For other species, such as herbivores and predators that prey on these insects, the odor of different green leaf volatiles is very sensitive.
Why do we like this taste? People don't usually eat grass or insects on lawns, but the green leaf volatiles released by lawns aren't much different from plants that we think are delicious. This means that we have good reason to be sensitive to them and like them.
Almost all fresh vegetables have the taste of green leafy volatiles.
During the softening process, the fruit may release volatile molecules from the green leaves, and the membrane will break down. Throughout evolutionary history, we have been using this information to determine when the fruit is ripe. There is nothing special about grass that makes it smell better than other plantsBut when we cut them, we injure many plant tissues, releasing the dense green leaf volatiles that we love, because we naturally associate this smell with edible plants.
-
I think the freshly cut grass still has grass juice on it, so it will have a bit of a taste.
-
Because of the newly cut grass, it will be emitted into the air because of some factors, and there will be a grass fragrance.
-
Maybe it's because of the problem of the cells, it's juicy when it's cut.
-
The reason why this is the case is because it has a certain amount of information about it. Ingredients.
That's a human release. Mine is bad, but I can bless you! Oh, the ** of life is yourself, take advantage of the current life, I think you will be very happy, may a good person have a safe life, in fact, I also know that it is boring, because there is nothing to do, do you think, if you have something to do, will you be bored, you can do something you like to enrich your own life, and ah, you must maintain a good attitude every day, be happy, happy, and happy, and be in a good mood like anything I think, it is difficult to be unhappy for you For example, listen** Watch TV series, eat your favorite food, read comics, watch movies, play and run Play games, play mahjong, read**, go shopping, chat with friends, I think it's all good, in short, do whatever you want, just be happy! >>>More
Dancing grass is a rare plant that is about to become extinct, its leaves have a large number of linear leaflets on both sides, and is very sensitive to sound waves, when the temperature reaches more than 24 and there is no wind and rain, the two leaflets hear the sound and move, constantly swing left and right all year round, bounce up and down, sometimes fast and sometimes slow, make people never get tired of seeing.
Today, I asked for five or six perilla plants, which are very good at multiplying, and they also grow in the seams. View the original post
Yes, my turtle and turtle sleep under the water, not 5-6 times the height of the back armor, and after a while they will come up and breathe, and in the middle of the night it will be lively to death! Probably don't sleep like people for that long.
Mid-October, mid-April of the second year I woke up I've been raising turtles for a few years now, and every year.