The benefits and disadvantages of rhododendron
If you want to know the benefits and disadvantages of rhododendron and the detailed introduction of the flowers' language and implications of green plants and flowers, the specific content is as follows:
As the weather warms up, flowers compete for beauty, and桃花, cherry blossoms, begonia and other flowers compete to bloom. In April, rhododendron also ushered in the season of full bloom. Compared with other popular flowers, rhododendron has been criticized by many people. Recently, topics such as "Why is rhododendron planted extensively despite its smelly odor" have successively topped the热搜 list of social media platforms. Netizens also complained, "Why is there such a plant as rhododendron in the world?" In response to the netizens' complaints, on the 13th, Qilu Evening News·Qilu Yidian journalists interviewed experts from the Shandong Academy of Agricultural Sciences.
"Smelly and smelly"
rhododendron has been criticized in various ways
It's time for the rhododendron tree to bloom again. On April 13th, in the Daming Lake Scenic Area of Jinan, many citizens took out their mobile phones to take photos with the clusters of rhododendron, and some even climbed the steps to smell the fragrance of rhododendron. However, Mr. Wang, a citizen, wrinkled his eyebrows after smelling it, "The smell is not good, a bit smelly." Mr. Wang said that he couldn't understand why the scenic area planted rhododendron. Some citizens who often visit Daming Lake also said, "It seems that rhododendron blooms at the beginning of April. The first time I smelled rhododendron, I could really smell a stinky smell, which is not pleasant, but I've gotten used to it now."
Not only offline, but also online, there have been voices complaining about rhododendron on social media platforms. Recently, topics such as "Why is rhododendron planted extensively despite its smelly odor", "The efficacy and function of rhododendron", and "Rhododendron can even be eaten" have successively topped the hot search list of social media platforms. The topic "Why is rhododendron planted extensively despite its smelly odor" has been read 450 million times so far. Many netizens complained "rhododendron is really smelly", "Why is rhododendron planted extensively", and "Why is there such a plant as rhododendron in the world". Some netizens even joked "pull out all the rhododendron in the world" and "rhododendron really makes people know the楠 and step back, left and right are 楠, and 楠 is added to 楠", and even created exclusive emoticons for rhododendron.
Expert:
rhododendron has indelible advantages
It is reported that rhododendron generally refers to the rhododendron, which is a evergreen tree of the蔷薇科 rhododendron. The leaves are coriaceous, the shape of the leaves is long elliptical, long inverted ovate or inverted ovate elliptical; the petals are white and nearly circular; the fruit is red and round, and then turns brownish purple; the seeds are smooth and brown ovate. The flowering period is April to May; the fruiting period is October. Li Shizhen explained that it is named Shina (nan) because it grows in sunny places between stones. The ancient books "Separate Record", "New Herbs of Materia Medica" and "Compendium of Materia Medica" all have records of the efficacy of rhododendron.
"The reason why rhododendron has such an unpleasant smell is mainly because it releases a substance called trimethylamine, which causes the smell. This substance is very similar to the smell of 'spermine' and 'ethylamine'. The smell produced by the oxidation of arginine is considered smelly by many people." Ma Yumin, a researcher at the Shandong Academy of Agricultural Sciences, introduced that the essential oil of rhododendron is also rich in benzaldehyde (rosy fragrance) and a certain amount of phenylethanol (almond flavor), so the base fragrance of rhododendron has a warm honey fragrance, almond fragrance, and green fragrance. "This smell is harmless to the human body. The reason why it secretes such a smell is to attract insects for pollination, which is the instinct of rhododendron to 'carry on the family line'."
The benefits and disadvantages of rhododendron
In response to many people's疑问 about why many cities plant rhododendron as urban landscapes and green trees, and even plant them extensively, Ma Yumin also explained, "Rhododendron is widely distributed in China, which is the main origin. The trunk of rhododendron is tall and strong, the branches and leaves are lush, and it has a round super large crown. In April and May, it will bloom white dense small flowers, and by October, it will bear bright red small fruits, which are very beautiful. Therefore, it is often used as an ornamental plant." Ma Yumin said that in Henan, Sichuan, Hubei, Hunan, Fujian, Guangdong, Yunnan and Guizhou provinces, this tree is often planted as a green tree or ornamental tree in orchards, residential areas, and both sides of the road. "In addition to its excellent ornamental properties, it also has the advantages of easy survival, environmental protection, and noise insulation."
At the same time, "rhododendron has relatively low requirements for the environment and a high survival rate. The growth process of rhododendron has very few diseases and insect pests, after all, it has a unique smell, and generally mosquitoes dare not approach. The growth of rhododendron is also relatively slow, and it is convenient to prune later, and the cost of maintenance is low. In addition, the leaves are relatively large, so they have good dust control ability and can prevent smog." Ma Yumin mentioned that the leaves of rhododendron can also absorb some harmful gases. Large-scale planting of rhododendron has a certain effect on environmental protection. "Rhododendron can also insulate sound, so many schools like to plant rhododendron to create a good learning environment for students."
"In short, planting rhododendron in the city has many benefits, and its disadvantages of smell will be ignored. Moreover, the flowering period of rhododendron is short, and its smell lasts for about half a month. It can be seen that its advantages are obviously greater than this defect." Ma Yumin said that although some people think the smell of rhododendron is not good, we should pay more attention to its dirt removal function, especially its function in removing dust and absorbing toxic gases.
The above-mentioned benefits and disadvantages of rhododendron and the detailed introduction of the flowers' language and implications, I hope everyone will like it!