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photinia serrulata seed

Red Photinia is a hybrid species of the rosaceae family, which is a small evergreen tree or shrub, the height of the tree can reach 5 meters, and the height of the shrub can reach 2 meters. Leaf blade leathery, oblong to obovate, lanceolate, apical, base cuneate, margin glandular serrate, flowers numerous and dense, compound corymbose, flowers white, pear yellow-red, May to July, September to October fruit.

It is mainly distributed in southeast and eastern Asia and subtropical and temperate areas of North America, and has also been widely cultivated in many provinces of China.

The red-leaved heather is a street tree, its pole stands like a torch; Make a hedge, its shape lying like a fire dragon; Pruning landscape, shape can be varied, beautiful landscape effect. Red photinia is named for its bright red shoots and young leaves. There are two common varieties of red Robin and red lip, of which red Robin's leaves are bright and eye-catching, and the viewing is better. In spring and autumn, the new tips and young leaves of red photinia are red, colorful and durable, and full of vitality. In the summer heat season, the leaves turn bright green, giving a fresh and cool feeling. Heather is named for its bright red shoots and young leaves.

Morphological characteristics

Red photinia is a small evergreen tree or shrub, the height of the tree is 6-15 meters, and the height of the shrub is 1.5-2 meters.

The leaves are leathery, and the cuticle on the surface of the leaves is very thick. That's why the blades look so bright. The young branches are brown with short hairs attached. It is purple brown after. The final appearance is grey and hairless. There are thorns on the trunk and branches. Leaf blade oblong to obovate, lanceolate, 5 -- 15 cm long and 2 -- 5 cm wide, apical with short cuspate, base cuneate, margin glandular serrate, petiole 0.8-1.5 cm long. The flowers are numerous and dense, with terminal compound corymbs.

Inflorescence peduncle, flower stalk adnate pubescent. Flowers white, 1-1.2 cm in diameter. Pear yellow red. Diameter 7-10 mm.

Flowering period from May to July, fruit period from September to October mature.

Growing environment

Photinia variegata grows well in warm and humid environments. But in direct light, the colors are more vivid. At the same time, it also has a strong ability to resist Yin and drought. But not resistant to moisture. It has 

good saline-alkali resistance, is resistant to pruning, is not strict to soil, is suitable for growing in all kinds of soil, and is easy to transplant into adult plants. It is suitable for growing in slightly acidic soil, especially 

sandy soil, but it can also grow normally in red or yellow soil. The requirements for climate and temperature are relatively relaxed, and can resist low temperature environment.

Distribution range

It is mainly distributed in southeast and eastern Asia and subtropical and temperate areas of North America, and has also been widely cultivated in many provinces of China.

Propagation method

The propagation methods of Photinia rufifolia mainly include tissue culture and cutting. Tissue culture has high requirements and costs for facilities and professional technology, low cutting cost, simple operation, 

high survival rate, and can be produced in ordinary plastic greenhouses.

The cuttings were spring in early March, summer in early June and autumn in early September. Use semi-lignified shoots or lignified annual shoots, cut into leaves and shoots, about 3 to 4 cm in length, the cut 

should be smooth.

After cutting the cuttings, pay attention to moisturizing, as far as possible with the cut inserted. Before cutting, the incision was treated with rooting agent to accelerate the rooting speed and increase the survival rate. 

The cutting depth should be 3 cm, and the density should be 400 trees per square meter. After insertion, pour water and spray the leaf surface with carbendazim and anthrax forme mixture.

After cutting, the seedbed should be checked frequently, the water content of the matrix should be kept at about 60%, the humidity of the air in the shed should be kept above 95%, and the temperature in the shed 

should be controlled below 38℃, if the temperature is too high, it should be sprayed to cool down. Shade is needed from cuttings to roots.

After 15 days, some cuttings begin at the hair root, and the water content of the matrix should be appropriately reduced, generally maintained at about 40%. When more than 50% of the cuttings begin to take root, 

the membrane can be gradually opened for ventilation, and the shading transmittance is about 50%.

When all the roots of the spike and more than 50% of the leaves, gradually remove the shading net and film of the greenhouse, start to cultivate seedlings. It can be combined with spraying foliar fertilizer or applying 

low concentration water-soluble fertilizer to promote healthy growth of cuttings.

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