Gene "scissors" speed up specific genetics researchers to complete experiments in mammals for the first time July 12, 2018 Source: Chinese Journal of Science Window._bd_share_config={ "common":{ "bdSnsKey":{ },"bdText":"","bdMini":"

In many areas, farmers are accustomed to weeding wheat fields in spring. Many farmers even think that the ground temperature is low in winter and there should be no weeds in the field. In fact, many weeds in wheat fields have similar characteristics to wi

Affected by continuous rainy weather, rice harvesting in our province has been generally blocked recently, affecting the timely sowing of wheat, and the area of ​​late sowing wheat will be larger. The current weather is getting better, the

Nature Subsidiary: Scientists use the fluorescence pupil system to perform real-time visual assessment of Cas9 off-target effects As an effective gene editing method, CRISPR-Cas9 has great potential in disease prevention and treatment, but its off-target effect must be considered in clinical trans

1, timely sowing Sowing in Hubei live before June 15th, if planted as a regenerative rice after the Ching Ming Festival (make sure to plant before April 20) can be planted. The amount of seed used for dry live broadcasting is 4 kg, the amount of water us

Topping is an important task in the management of loofah and has a direct relationship with the yield of loofah. Usually when the main loofah vine has 13-15 leaves and the plant height is about 160 cm, the melon will be retained and topped, and then 1 mel

1. Seedlings can emerge 4 to 5 days after sowing, and seedlings should be introduced by breaking the membranes in batches after emergence. About 20 days after sowing, the fleshy roots of radish began to swell. At this time, mud should be used to press the

The selection of hawthorn seedlings is suitable for leeward sunny, flat terrain, thick soil layer, loose soil and fertile soil, and irrigation conditions. The seedlings are cultivated, the root system is developed, the lateral roots are numerous, the seed

The main diseases and pests of peach and plum are bacterial perforation, red spot disease, Lishi bee, mulberry whiteworm, borer borer, and red spider. For these pests and diseases, the tree is used in autumn, deep-turning tree trays, clearing in winter, spraying twice before budding. 3 to 5 degree

How does Chinese herbal preparations turn on secondary metabolism of crops, and play a role in preventing and curing diseases, improving quality and increasing efficiency? The Chinese herbal preparation itself contains high-energy substances such as amino acids, terpenes, terpe

1. Avoid the heat In summer, the temperature is high, the water in the basin evaporates quickly, and the leaf water transpiration is also large. At this time, the amount of watering for potted osmanthus will greatly increase. The average daily temperatur

Don’t take the time to unbag the apples. The time for unpacking the apples is from September 25 to October 1 as******, because the suitable temperature for apple coloring is 13℃~15℃, when the temperature is greater than 10℃, after