Primula Learn more about Primula
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Brief introduction of Primula
Scientific name: Primudaspp. Alias: Primrose (Japanese name), Primulaceae: Primulaceae and Primula are widely cultivated in the world and have a long history. They have developed rapidly in recent years and have become a kind of important garden flowers at present. Both the middle name and the scientific name Primula have the meaning of early flowering. Flowering in early spring is an important characteristic of this genus. Cultivation history of primroses: according to local records and the traditional custom of Yunnan folk planting primroses in pots for Spring Festival appreciation. Tibetan primroses in China
2019-01-16 -
Cultivation techniques of Primula
Cultivation techniques of Primula
2018-08-17 -
Propagation methods of Primula
Sowing and propagation is a technical difficulty in cultivating primroses, because of its small seeds, short life span, no germination or low germination rate of aged species every other year. Therefore, timely seed collection is the premise of seed reproduction. The germination duration of the seeds produced in the same year is generally about 20 days, and begins to germinate 7-10 days after sowing.
2018-11-19 -
Do you know the growth habits of primroses?
Primula was introduced into Europe at the end of the 19th century, and has been widely cultivated all over the world, and there are many horticultural varieties, cultivated everywhere, quite ornamental. Primroses like warm, cool, humid climate, can not tolerate high temperature and strong direct sunlight, and most of them are not resistant to severe cold.
2018-05-04 -
Cultivation techniques of Primula
Cultivation techniques of Primula
2019-12-24 -
Cultivation techniques of Primula
Primroses (primulaspp), also known as primroses, New year flowers. Primulaceae, Primulaceae, widely cultivated in the world, has developed rapidly in recent years, and has become an important garden flower. Flowering in early spring is an important feature of this genus. (1) morphological characteristics and species of perennial root herbs, but most of them are cultivated as annual or biennial flowers. The plant is low, the leaves are all basal, forming rosette-shaped leaves, and the flowers are red, yellow, orange, blue, purple and white arranged on the buds.
2019-01-16 -
Control of Brown spot of Primula
Symptoms are easy to occur in the four seasons. The leaves are brown spotted. The pathogen Alternariasp. It is a semi-known Alternaria. The conidia are transmitted by wind and rain. Prevention and treatment methods spraying 70% chlorothalonil wettable powder 1000 times liquid and other fungicides at the initial stage of the disease.
2019-01-16 -
Control of Brown spot of Primula
Symptoms are easy to occur in the four seasons. The leaves are brown spotted. The pathogen Alternariasp. It is a semi-known Alternaria. The conidia are transmitted by wind and rain. Prevention and treatment methods spraying 70% chlorothalonil wettable powder 1000 times liquid and other fungicides at the initial stage of the disease.
2019-01-16 -
Primula spot disease
Symptoms: mainly harmful to plant leaves. The disease spread from the lower part of the plant to the upper part. The spot is usually 3 to 4 mm in diameter, brown, and in severe cases, the diseased leaves die, resulting in fallen leaves (see figure 2). The disease is caused by Alternaria alternata. The pathogen overwintered on the diseased residue by mycelium or conidium, and the seeds could also carry bacteria, which became the source of initial infection in the second year. The disease is mainly spread by conidia in the air and Rain Water. Re-infection is frequent in the growing season. Plants are prone to disease in warm and humid weather and partial application of nitrogen fertilizer.
2019-01-16 -
Botrytis cinerea of Primula
Botrytis cinerea is a common disease of primroses, which occurs more commonly. [pathogen] BotrytiscinereaPersetFr. [symptoms] watery spots appeared on the leaf tip or leaf edge, and then gradually expanded to black and rotted; the stem showed irregular brown spots, which were prone to soft rot; the flowers became brown and rotted and fell off after damage. In the later stage of the disease, a grayish-brown mildew layer was formed in the disease. [incidence regularity] the pathogen overwintered in the remains of diseased plants or in soil. Conidia are transmitted by wind and rain
2019-01-16 -
The latest course on cultivation techniques and methods of Primula
Primroses, also known as primroses, are typical warm temperate plants, most of which are distributed in high latitudes, low elevations or low latitudes and high altitude. they like cool, humid environment and soil rich in humus.
2020-11-10 The latest primrose cultivation techniques methods tutorials primroses -
Prevention and treatment of Primula spot
The symptoms occur on the leaves. The spot is usually 3-4 mm in diameter, brown, and in severe cases, the diseased leaves die, resulting in fallen leaves. The disease spread from the lower lobe to the upper lobe. The pathogen RamulariaprimulaeThumen is Alternaria alternata. It belongs to a subphylum of semisciferous fungi. Conidiophores protruding from stomata, several branches clustered, extremely short, unbranched, colorless, slightly curved at the end; conidia cylindrical or short rod-shaped, unicellular or bicellular, colorless, 16-24 × 3-4 microns in size. The route of transmission and the conditions of the disease
2019-01-16 -
Control of bacterial Leaf spot of Primula
Symptoms in the spring in the four seasons, leaves and receptacle disease. At the initial stage, water-immersed irregular lesions were produced along the veins, then yellowed, then browned, enlarged, and the symptoms of marginal blight occurred. In severe cases, it withered from the lower lobe. On the multi-flower primrose spring, dark water-immersed spots first appeared on the leaves, and then the disease spots became light brown, with obvious yellow halos around them. Pathogen Pseudomonassyringaepv.Primrlae (ArketGardner) Young,DyeetWink
2019-01-16 -
Propagation methods and matters needing attention of Primula
Primroses, also known as primroses, Qizhong building, due to the development of primroses in recent years, now primroses have more and more colors, and bright colors, very lovable. Primroses like to be warm and slightly cold-tolerant. Artificially cultivated primroses need to reduce fertilization during their full bloom.
2018-06-30 -
Primula seed propagation
Sowing time Primula flowers are mainly used for sowing and breeding. The sowing time should be determined according to the needs of flowering. Generally, they can bloom about 6 months after sowing. Primula seeds have a short life span, so it is best to sow them immediately after harvesting, or store them in a cold and dry place.
2018-11-19 -
Main points of sowing and propagation of primroses
Primroses, also known as primroses, primroses, etc., native to China, primroses have developed rapidly in recent years, and have become a very important garden flower variety. Primroses are generally propagated by sowing, so what problems should be paid attention to in the process of sowing?
2018-06-29 -
How to raise Primula and its Culture methods and points for attention
Primroses, the name sounds very good, it implies the recovery of all things in spring, all kinds of beautiful flowers in full bloom; beautiful primroses like to grow in wet and cool places, its flowering period is very long and easy to raise. Today let's take a look at it.
2020-11-08 Primroses how to raise breed method and matters needing attention -
Culture method of primrose
1, soil: pot soil should choose 2 parts of rotten leaf soil, garden soil 1 part, and apply a small amount of basal fertilizer culture soil. This kind of culture soil is loose and fertile, and it is slightly acidic to facilitate root development. 2. Light: Primula flowers like light, but avoid strong sunlight. In summer seedling stage, pot plants should be placed in cool, ventilated and scattered light.
2018-11-19 -
Common diseases and control of primroses
Teacher Hsiao Huizi now introduces the common diseases of primrose as follows
2018-10-26 -
Prevention and treatment of common diseases of primroses
Primroses sowing from that moment, not only to do a good job of maintenance and management, disease and pest prevention is also one of the keys to raising primroses, once there is a small problem in a certain procedure, primroses will also play a small mood, so that you are busy without a clue. So what are the common diseases and pests of primroses in the process of culture?
2018-07-01