From the first wild fruit, the raw meat, to the next cereal vegetable, in history
In order to survive better, humans have learned to grow crops
The development of agriculture, through labour, has addressed the issue of subsistence. And i realized
"spring seeded a grain, and in autumn it collected 10,000."
This ancient truth。
Small farmers are curious, why is the poem written in terms of "silver" rather than other food crops
Today, the small farmers come to talk to you about — — the twilight。
Zirconium, commonly known as valley in the north of china, is called millet after seed has taken off its shell. It has white, red, yellow, black, orange and purple colours, commonly referred to as “twilight”。
Because of its drought-resilient and infertile characteristics, which produce food of the same weight, cereals require only one third of maize, one half of wheat and one fifth of rice. As a result, grains have occupied a very important position over a long period of time in the ancient era of backward technology and limited crop yields。
The large-scale planting of tungsten and tungsten also marked the beginning of primary agriculture in northern china. The opening of traditional agricultural production methods, represented by five grains (silver, wheat, rice, guillotine, guillotine) has made a fundamental contribution to the breeding and development of the huaxia civilization。
It's the origin
Crops originate essentially from primitive, wild “grass”, as do valleys。
According to an expert from the chinese academy of agricultural sciences, the grains planted in our country are not imported from abroad, but are artificially domesticated by our dog tails. The ancients have discovered the natural variability of dog tails, from which they have chosen individuals with “sweety, non-screech, small vines” that are beneficial to humans, with a special culture to pass on these qualities in a stable manner。
After thousands of years, and even millennia of domestication improvement, dog tails are gradually becoming grains that grow large, thin, non-coloured and seedy. A process from dog tail grass to farmer varieties has been achieved until today。
When the grains were domesticated, the ancients gradually developed a way of life dominated by grains, supported by gathering and fishing, and began feeding livestock such as pigs, dogs and chickens. From the age of fishing and gathering, humankind is moving towards a new era。
This is also the reason for the importance and special status of the ancient chinese food crops。
Cultivation
In the poem, there is a story about growing grains:
The poems of daaa vianmin say: “when you leave a child, grow a tree, a mag and a mag. When they become adults, they grow good grain crops and teach them. I heard that as a farmer, the world profited and worked. Discarded, no. Queenie, no
The posterior was the birth of the ancient zhou clan, and it is said that the daughter of zhiqiang, kang zhi-tung, was born of pregnancy, and was abandoned, and therefore abandoned. He was an expert in the cultivation of various food crops and had been a farmer and a teacher during the peace period, and was considered to have started growing corn and wheat. And the posterior was sealed for his work. The posterior is considered to be one of the three most trusted men and is honoured as the god of agriculture, the god of tilling and the god of valley. In some parts of the population there is the ritual of the god of the vale, who prays that the coming year will be smooth and that the rice harvest will be good。
Of course, this is just a vision of the harvest that ancients have been praying for, and that, with the development of agriculture and science and technology, agricultural production is no longer dependent on “seeing the sky for food”, but is moving towards “know the sky”. No, the secret between the valley and the sunlight was revealed by experts。
What's the flower code for the valley
“this discovery enriches mankind's scientific understanding of the genetic function of light-sensitive pigments.”
As they say, “all things grow by the sun”, but how does life respond to light? Which genes are working? In recent days, a scientific study carried out by several units within the united nations team for the discovery and innovative use of equivalent crops at the crop science research institute of the chinese academy of agricultural sciences has provided new insights into how plant light cycles respond to genetic mechanisms。
Team scientists described plants in the long-term evolution process as producing generations by adapting to four seasons of change and flowering at the right time。
Owing to variations in the length of the sunlight (i. E., the light cycle) due to four season changes, plants that are above the threshold to bloom are referred to as long-day plants, such as mustard, short-string grass, wheat and barley。
Plants that are less than a critical mass to bloom are called short-lived plants, including rice, maize, soybeans, sorghum and grains。
Long-day plants bloom in long-light cycles earlier than in short-light cycles, and short-day plants do the opposite. For a long time, genetic regulation mechanisms for plants responding to different light cycles remain unclear, and the key regulatory factors determining plant long- or short-lived properties are not yet clear。
Quick generation and modelling research system in valley (precious, small flowers, plant form)
Photo-sensitized pigments, as photoreceptors, can feel light signals and participate in the flowering of plants (spring period) during the light cycle. In order to understand the genetic mechanism for dialysis plants in response to the light cycle, using research methods such as group genetics, the study found that siphyc had been selected in the process of grain domestication, leading to the screening of pre-codified valley mutations from a specific genetic background。
These mutations are shown in very early screeching, accompanied by an increase in the number of spectrometers and a decrease in the number of strains. As a short-day plant, grains are shown as long-day inhibitions and short-day promotions; however, the siphyc mutations are shown as long-day boosts, short-day inhibitions, with a completely opposite appearance, suggesting that the mutation of the siphyc gives the valley long-day plant properties。
The findings of the study, which show that the light cycle response of short-lived plant valleys is directly regulated by siphyc, enrich our scientific understanding of the genetic function of light-sensitive pigments。
In addition, researchers have built efficient indoor farming systems that match the pre-literate effects of the valley siphyc mutation, as well as its rapidly incremental properties. The results show that siphyc mutation growth density can increase four times more than in wild shapes, and that seeds can be produced within 45 days of the seed life cycle. This further refines the platform for a system of technology for the identification of grain functional genes and efficient research, and provides the basis for the development of the valley as a model plant research system to promote the identification of genes such as c4, anti-resistance and quality。
This discovery enriches the scientific understanding of the genetic function of photo-sensitive pigments in humans and also provides an excellent genetic resource for the future establishment of an efficient research system for c4-type crops。
What is the experience of 45 days of millet
Small farmers expect it
