Xinhua all -media+丨 magic plants bloom again!Secret the "Auspicious Three Treasures" of the National Botanical Garden

Xinhua News Agency, Beijing, July 25 (Reporter Wei Mengjia and Yang Shujun) In the greenhouse of the National Botanical Garden (North Park) (formerly Beijing Botanical Garden), there are three worldly rare endangered plant giant konjac. Essence

Only three or four flowers in your life, only 48 hours of flowering, and only 100 flowers under artificial cultivation all over the world ... This giant plant is a real "magic plant". After more than 10 years after the Giant Moga was introduced into the National Botanical Garden (North Park), recently, three giant brutal taro "bloomed", which attracted a large number of tourists to watch.

The picture shows a blooming giant tomb (right) and a blooming giant tomb (left). (Photo confession in the respondent)

On July 6 and July 19, "Dabao" and "Erbao" blossomed, "height" was 1.61 meters and 1.68 meters, respectively. On July 23, the "Three Treasures" bloomed again. The reporter saw in the tropical exhibition greenhouse of the National Botanical Garden (North Park) that the third giant konjac is blooming, and the purple -red huge buds are extended, revealing the "long chimney" general inflorescence shaft. The staff is measured and quantitatively measured for it. It is said that this giant tombot is 1.86 meters, which is the highest among the "three treasures".

This time the "Three Treasures" blooming became a "happy event" in the botanical garden industry. The National Botanical Garden (North Park) revealed that this is the first time that China has successfully achieved "group flowers" in the state of artificial cultivation. Why is it so difficult to open a giant tomb? Wei Yu, executive deputy director of the National Botanical Garden (North Park), exclusively revealed the "growth mystery" of this magical plant to Xinhua News Agency reporters.

The picture shows scientific researchers measure the height of the third giant tombot. Xinhua News Agency reporter Ren Chao Photo

Wei Yu said that the native place of giant tombot was found in a very narrow area in the tropical rain forest in Sumatra, Indonesia, and was first discovered for the first time in the 19th century. This plant has very strict requirements on the growth environment. The best growth temperature is 26 to 28 degrees Celsius, and the relative humidity requirements are more than 80%.

Not only are the requirements of temperature and humidity strict, but the growth and flowering of giant canal are not regular. According to Wei Yu, in general, the giant brutal taro generally takes 7 to 10 years from seeds to the first flowering, so each blooming will be recorded as a major event.

"To cultivate artificially, it needs to take care of the maintenance staff very carefully, and the requirements for maintenance are high." She said, "All the three sisters' blooming this time also reflects the national botanical gardens in the past years It has reached a certain level in the cultivation and maintenance. "

The picture shows a giant tomb. (Photo confession in the respondent)

Giant Moga is a "infamous" flower. If you approach, a stinky smell will come immediately. It is reported that when blooming, giant tomatoes will release their own composite gases that contain more than 100 chemicals, which reflects the "survival wisdom" of this "limited time flowering" plant.

"The flowering period of giant brings are very short, especially its female flowers only open on the first night. In order to improve the growth efficiency in the short term, it exudes a odor to attract rotten insects to give it pollination. Farther, it also produced the heat dissipation mechanism by itself. Through the tall attachment, which is the chimney -shaped organ of the inflorescence, it can spread the smell to a few kilometers. But the next day, it basically cannot smell the odor. Instead, I will smell some fragrance of tropical fruits. "Wei Yu explained.

The picture shows the female flower of the giant tomb. (Photo confession in the respondent)

During the flowering process of the "Auspicious Three Treasures", the plant garden researchers also hurriedly carried out relevant scientific research work, such as artificial pollination for giant konjac to help them reproduce and sturdy, and use infrared cameras to monitor their heating mechanisms to understand the principle of heating.

It is understood that the giant tombot is difficult to "solid" in nature, and artificial pollination can be easier to better and strong. "This time we opened three flowers at once, and we created opportunities for artificial reproduction. We can take pollen from the first plant, and then give it to the second plant, and then the second plant is granted to the third plant. We are very painful, because we only bloom, and we can't find pollen to give it. "Wei Yu said.

An important task of the National Botanical Garden is the collection of quality resources. As a rare and endangered plant, the research on the cultivation of giant canathers is of great significance for the national botanical garden.

The picture shows scientific researchers collecting the second giant konjac pollen. (Photo confession in the respondent)

"The survival status of giant tomb taro is in danger and is very endangered. What we have to do is to strive to save its germotic genes and reproduce it and protect it. Of course, it is not just giant konjac. In fact, all these are endangered plants, We have to protect it with threatened plants. "Wei Yu said.

It is reported that in addition to giant tombot, the National Botanical Garden currently has more than 1,000 rare and endangered plants and will be exhibited to the public.

"Giant Moga is a very special existence in the plant world." Wei Yu said that in order to allow tourists to understand this rare plant, see the blooming of giant tomatoes. We hope that more people can know it, understand it, and protect it. "

[Editor in charge: Shi Ge]

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