Overview of Tarenna soyauxii (Hiern) Bremek.
Tarenna soyauxii (Hiern) Bremek. is a flowering plant that belongs to the family Rubiaceae. This species is commonly referred to as West African Cherry or African Cherry. It is native to West Africa, specifically to countries like Nigeria, Cameroon, and Congo.
General Appearance of Tarenna soyauxii (Hiern) Bremek.
Tarenna soyauxii is a small to medium-sized tree that can reach up to 15 meters in height. It has a straight trunk with smooth brown bark, and dark green leaves that are simple and glossy. The leaves grow to about 10 cm in length and are pointed at the tip. The tree produces small, white, fragrant flowers that eventually develop into red fruit, resembling cherries, which are edible and have a sweet, slightly sour taste.
Uses of Tarenna soyauxii (Hiern) Bremek.
The fruit of Tarenna soyauxii is commonly eaten by people in West Africa, either fresh or dried. It is also used to make jams, jellies, and sauces. The bark of the tree is used to treat various ailments, such as fever, stomach problems, and diarrhea. In addition, a decoction of the bark is also used as a mouthwash. The leaves of Tarenna soyauxii are also known to have medicinal properties and are used to treat headaches, skin irritations, and wounds.
Moreover, the wood of Tarenna soyauxii is used in carpentry and furniture-making, while the leaves are used as animal fodder. Additionally, the tree is considered an important source of nectar for honeybees.
In conclusion, Tarenna soyauxii has various uses, ranging from medicinal to culinary, and its edible fruits, sweet taste and decorative appearance make it an appealing plant species to many people.
Light Requirements
The Tarenna soyauxii plant prefers a partially shaded to a fully shaded environment. Direct sunlight exposure can harm the plant, leading to leaf scorching and premature wilting. The ideal setting to grow this plant is in the understorey layer of a tropical rainforest where the canopy above provides shade whilst still allowing some light to filter through.
Temperature Needs
This plant requires warm temperatures to survive, with a minimum temperature of 18°C. The optimal temperature for growth is between 20°C to 25°C, and anything below or above that range can be detrimental to its growth and development. In areas with cool temperatures, the Tarenna soyauxii may become slow-growing or stunted.
Soil Requirements
The Tarenna soyauxii grows best in moist, well-draining soil that is rich in organic matter. The soil should have a pH range of 5.5 to 6.8, and it must be able to retain moisture without becoming waterlogged. The addition of organic matter such as leaf litter, manure, or compost can help to improve the soil structure and nutrient availability. It is advisable to avoid planting this species in areas susceptible to soil erosion, as it can lead to poor growth and development of the plant.
Cultivation methods
Tarenna soyauxii (Hiern) Bremek. is a shrub that can reach heights of up to 6 meters. It is native to Central Africa and prefers shaded areas. It is important to grow the plant in well-draining soil as it does not tolerate waterlogging. The ideal soil pH should be between 5.5 and 7.5.
This plant can be propagated by seeds or cuttings. When propagating by seeds, it is important to soak them in water for up to 24 hours before planting. Cuttings can be taken from the stem, and should be at least 15cm long. It is recommended to propagate Tarenna soyauxii (Hiern) Bremek. during the rainy season, as it thrives in moist conditions.
Watering needs
Tarenna soyauxii (Hiern) Bremek. requires regular watering, especially during dry periods. The soil should be kept moist, but not waterlogged, as this can lead to root rot. It is advised to water the plant in the morning or evening when the sun is not too harsh.
Fertilization
For optimal growth, Tarenna soyauxii (Hiern) Bremek. requires regular fertilization. A slow-release fertilizer can be applied to the soil every three months. Alternatively, organic fertilizers, such as compost or manure, can also be used. Care should be taken when fertilizing to avoid over-application, as this can damage the plant.
Pruning
Tarenna soyauxii (Hiern) Bremek. benefits from regular pruning to maintain its shape and encourage new growth. The best time to prune is after the rainy season when the plant is actively growing. Dead or damaged branches should be removed, and any crossing or rubbing branches should be pruned to prevent damage. Care should be taken not to over-prune, as this can stress the plant and reduce its overall health.
Propagation of Tarenna soyauxii
Tarenna soyauxii can be propagated through various methods including seed propagation, stem cuttings, and layering.
Seed Propagation
Seeds of Tarenna soyauxii are easily obtainable from mature fruits. The seeds are sown in well-draining soil and covered lightly with soil. The soil should be kept moist throughout the germination process. Germination period usually lasts between 4 to 6 weeks. The seedlings are transplanted into individual pots when they reach a height of about 10cm.
Stem Cuttings
The stem cuttings should be collected from mature, healthy plants and cut into lengths of about 15-20 cm. The leaves of the lower part of each cutting should be removed, and the bottom end of the cutting should be dipped in rooting hormone. The cuttings are planted in well-drained soil, and watered regularly to keep the soil moist. Rooting usually occurs within 2-3 weeks. The cuttings are then transplanted into individual pots.
Layering
Layering is another method of propagation where a low branch of an established plant is brought into contact with the soil by removing a small section of bark and dusting the exposed area with rooting hormone. The branch is then secured in place using a U-shaped pin. Roots will form at the point of contact with the soil, and new shoots will emerge from the branch. Once sufficient roots have formed, the new plant can be separated from the parent plant and transplanted into individual pots.
Disease Management for Tarenna soyauxii
Like all plants, Tarenna soyauxii is susceptible to various diseases. Here are some common ones:
- Canker: This disease causes stem discoloration and wilting. Infected branches and leaves should be pruned and destroyed, and the plant should be treated with a fungicide.
- Mildew: Powdery mildew can appear on leaves and flowers, leaving a white-grayish film. Treating the plant with a fungicide is recommended.
- Leaf spot: This disease causes dark spots on the leaves and can lead to defoliation. To prevent this disease, avoid overhead watering and remove infected leaves promptly.
To prevent the spread of diseases, remove any infected parts of the plant immediately and destroy them. Proper watering and good air circulation can also help prevent the growth of fungi and other pathogens. Spraying the plant with a fungicide can also help manage disease.
Pest Management for Tarenna soyauxii
Here are some common pests that can affect Tarenna soyauxii:
- Mealybugs: These insects suck sap from the plant and produce a white, cotton-like substance on the leaves and stems. To manage an infestation, remove the bugs by hand and spray the plant with neem oil.
- Spider mites: These tiny mites can be difficult to detect, but they can cause leaves to turn yellow and drop. To prevent these pests, keep the air around your plant moist and use a miticide to control an infestation.
- Aphids: These small insects also suck sap from the plant and can cause leaves to curl. To control an infestation, spray the plant with insecticidal soap and treat with neem oil.
Regularly inspect your Tarenna soyauxii plant for signs of pests, and take action as soon as you see any signs of infestation. Keeping the plant healthy and regularly pruning can also help prevent the growth of pests.
