Yes, plum blossoms can be propagated by grafting, cutting, layering and sowing.
Cutting propagation of red plum is simple, the technology is not complicated, but the survival rate is low. For varieties that are difficult to take root, the cuttings can be treated with 500 times of new high-fat film (rooting agent) to improve the survival rate and promote rooting. The best cutting time of Prunus mume is June 5438+065438+1October, and the annual stout branches with the length of 10cm ~ 12cm are selected as cuttings, so that the leaves will fall from time to time, and the branches store enough nutrients and are easy to take root and survive.
The best cutting soil is sandy soil without fertilization. When cutting, select a robust branch (2-year-old Keke) with a length of 25? 30 cm, the thickness is similar to the small head of chopsticks, neither too thick nor too thin. The suitable cutting depth is 15-20cm. In case of frosty weather, cover with grass to keep warm.
Extended data:
Red plum is a kind of plum blossom, which can be used in gardens, green spaces, gardens and scenic spots, and can be planted singly, in clusters and in groups. It can also be cultivated naturally in front of houses, on slopes, among rocks and on roadsides; You can use evergreen trees or dark buildings as the background to set off the beauty of plum blossoms.
In ancient times, in order to get the best viewing effect, Hongmei emphasized "plum blossom in front of the house" and "going upstairs to see plum blossom". In addition, plum blossoms can be arranged into Meiling, Mei Feng, Meiyuan, Meixi and Meijing. Hongmei is also the object that China literati like to recite, and there are many paintings and poems. And a brand of cigarettes.
The branch of biology that studies the methods and principles of biological classification. Classification refers to following the principles and methods of taxonomy to name and grade all kinds of organisms.
Taxonomy used to be called systematics, but it is easily confused with systematics, which is a science that studies biodiversity and the relationship between any group and all other groups. It was once called taxonomy. The same purpose of the three is to clarify the relationship (or kinship) between species in theory and practice, establish a natural system, determine the naming and sequencing of various groups, and summarize their evolutionary history.
There are millions of biological species on the earth, and they are ever-changing and different. If we don't classify them and build a system, we can't recognize them and use them. Classification system is a search system for biological species, which can be used to understand and retrieve relevant information.
The objects of classification are all kinds of species, which are the products of evolution; Taxonomy is to clarify the historical origin between species and make the established classification system reflect the evolutionary history. Therefore, in a theoretical sense, taxonomy is a historical summary of biological evolution.
References:
Baidu Encyclopedia: Hongmei