builds space station. What is the use of ?
What are the astronauts busy with in the sky?
Let us find out
With the Shenzhou 14 manned mission
successfully completed
3 astronauts returned safely
experienced a 120-day full life cycle of
rice and Arabidopsis seeds
also returned from space on the spacecraft return capsule
my country completed the first "from seed to seed"
full life cycle space cultivation experiment of rice
"from seed to seed"
in the world. On December 5, at the Space Application Center of the Chinese Academy of Sciences, researchers from the Space Application Center (left) handed over samples to researchers from the Center for Excellence in Molecular Plants. Xinhua News Agency reported that on December 5, at the Space Application Center of the Chinese Academy of Sciences, scientific researchers decomposed and solidified samples. Xinhua News Agency reported
Rice produced seeds on the space station
and harvested one crop after another
At 3 a.m. on December 5,
the third batch of space science experiment samples returned with Shenzhou 14 arrived in Beijing. After completing the "from seed to seed" experiment on rice
researcher Zheng Huiqiong of the Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences
immediately began to process and analyze the samples overnight
On December 5, in the Biological Laboratory of the Space Application Center of the Chinese Academy of Sciences, researcher Zheng Huiqiong of the Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences, processed rice samples returned from space. Xinhua News Agency reported
On December 5, at the Biological Laboratory of the Space Application Center of the Chinese Academy of Sciences, researcher Zheng Huiqiong of the Center for Excellence in Molecular Plant Science, the Chinese Academy of Sciences, processed Arabidopsis thaliana samples returned from space.Xinhua News Agency reported
She said that
astronauts collected some samples
during the growth of plants
and cryopreserved them
This gives us the opportunity to understand the real conditions of plants
in space microgravity
The real situation in orbit
So
"get the samples" After finishing the rice, fixative should be added immediately
hoping to get as close to the state in the sky as possible.
What surprised Zheng Huiqiong was that
the astronauts also harvested the regenerated rice in the sky
"just like leeks
after the first crop was cut
it came out again
and rice ears grew again
This time the astronauts They cut everything again...
It was originally a season of rice
It has been harvested for several seasons
The regeneration capacity in the sky is stronger than that on the ground"
The experiment was carried out in orbit for 120 days
The astronauts collected samples three times
This time the "Shenzhou XIV" astronauts
planted rice in the space station
This is also the first time that rice has been carried out in the world
According to Zheng Huiqiong,
the experiment was started on July 29, 2022 when
was injected with nutrient solution, and ended on November 25, 2022.
The project conducted experiments in orbit for a total of 120 days
and completed the cultivation experiments of Arabidopsis and rice
seed germination and seedling growth
flowering and seeding throughout the life cycle
During the period
the astronauts collected samples three times while in orbit
On November 25
the astronauts collected samples of rice
and Arabidopsis thaliana seeds at the maturity stage
and kept them in a low-temperature storage cabinet
and brought them back together
Zheng Huiqiong said
She is also engaged in space science research. It has been decades
Many previous experiments were short-term
Some took a week
Some were more than ten days
"There were no astronauts involved before.
Many things, such as freezing samples in orbit
were impossible
Generally, they were returned to the ground and fixed again
That would be different from the real situation"
She said she was lucky
because only after the establishment of our country’s space station
and the participation of astronauts
could it be possible to conduct long-term experiments in space
and use them for deep space exploration
Zheng Huiqiong said
“By analyzing the images obtained in space
and comparing them with those on the ground
we found that space is slightly heavier. The force
has an impact on various agronomic traits
of rice, including plant height, tiller number
growth rate, water regulation, light response
flowering time, seed development process
and seed setting rate.
This is a picture of native rice and regenerated rice in space rice, showing the phenotype of space rice panicles and husk opening. Xinhua News Agency issued
This is a representative picture of rice completing different development stages of its entire life cycle "from seed to seed" in the universal biological culture module of the Wentian cabin life and ecological experimental cabinet. The numbers on the image represent the number of days after the nutrient solution was injected to start the experiment.Xinhua News Agency reported that the research team conducted a regenerated rice experiment and obtained regenerated rice seeds. Zheng Huiqiong said: "Two rice ears can be regenerated 20 days after cutting the plant. This shows that the growth of regenerated rice in a small and closed environment is very important." Feasible
This provides new ideas and experimental evidence for the efficient production of space crops
"
"This is also the first time in the world
that the regenerated rice technology has been tried in space.
The Chinese have taken the first step in growing food in space
l3
This time, scientists sent two kinds of rice
One is conventional rice
The other is a dwarf rice named "Xiaowei"
"Xiaowei" is short
High space utilization efficiency
Plant factory planting
can grow up to 12 layers
There is another reason why rice was chosen to be the first to go to the sky for the experiment
-
Rice is one of the most important food rations for the people of our country
It is a pity that
this space experiment
"Xiaowei" did not set seeds
It may be because the space in the culture box is small
The tall rice grows lushly
It blocks the light of the dwarf rice
The researchers will further analyze the reasons in the future
However,
Conventional rice does not produce seeds on the space station. The emergence of seeds
is the first step for the Chinese to grow food in space
But for breeding scientists
they are also concerned about the improvement of ground crops
Academician of the Chinese Academy of Sciences Academician of the Chinese Academy of Agricultural Sciences
Director of the Research Institute of the Chinese Academy of Agricultural Sciences Qian Qian said:
"You used to want to go to space?
You didn't dare to think about it
Now the country pays so much attention to
Such good conditions
We need to cultivate our new growth points"
And "Xiaowei" was participating in the space experiment after After
scientific researchers will continue to carry out research
and contribute to a better job for the Chinese people
Space rice has produced seeds
I hope Grandpa Yuan Longping can hear this good news
Source: Communist Youth League Central Committee
