Climate Change and Carob: The Tree of the Future?
The Mediterranean basin is among the regions most affected by climate change: hotter summers, more irregular rainfall and prolonged dry periods strain many traditional agricultural products. In this table, carob is often referred to as the "tree of the future" due to its ability to grow with little water, its adaptability to poor soils and its long life.
Read MorePeriodicity in Carob Tree (Year of Existence, Year of None)
One of the common situations encountered by carob growers is that the tree yields abundant crops one year and significantly less the next year. This situation, popularly known as the "year of existence – year of none", is called periodicity (alternative or irregular yielding) in horticulture. Sources define carob as a species that shows significant periodicity, especially when growing conditions are poor.
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Environmental Benefits of Carob Wood
Carob is a valuable tree not only for its fruit but also for what it adds to its land. Thanks to its deep roots, year-round green crown and adaptation to arid, poor soils, it can be used to prevent erosion, afforestation of degraded areas and protect soils. As a long-lived tree, it stores carbon in its trunk, roots and soil.
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The Root System of the Carob Tree
One of the most important secrets of the carob tree's ability to withstand the hot and dry summers of the Mediterranean is its strong root system that extends deep into the soil. Sources report that the carob has a taproot that goes deep and its roots can reach up to 15-20 meters in suitable conditions.
Read MoreAfforestation and Rural Development with Carob
The carob tree is a species that has been used as both animal feed and food source in the Mediterranean countryside for centuries and can survive with little input. In recent years, the tree is not only for its fruit; It is seen that it has started to be mentioned together with rural development titles such as reforestation of degraded areas, providing additional income to forest villagers and branding of local products.
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Does the Carob Tree Grow in Pots?
Carob is a tree with deep taproots that can reach 7–10 meters in height or even more in nature. Therefore, at first glance it does not look like a potted plant. Nevertheless, young carob plants can be grown healthily in pots for many years; especially in regions with harsh winters, potting is the most practical way to protect this Mediterranean tree from the cold. Carob also attracts the attention of bonsai enthusiasts with its hard leaflets and trunk that thickens over time.
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Organic Carob Cultivation
Carob is one of the most advantageous products for organic agriculture. Its adaptation to arid and poor soils, encountering few diseases and pests, and being grown largely pesticide-free in Turkey make it a relatively easy product to transition to organic production. However, "growing without pesticides" is not the same as "being certified organic": An organic product is a product that has been documented by production, registration and independent audit in accordance with the legislation.
Read MoreEstablishing a Carob Orchard: A Planning Guide
A carob orchard is a long-term investment that can yield for decades after it is established, but returns its first income after a few years. The basis of a successful garden is therefore planning before the sapling enters the ground: the right location, the appropriate variety and pollinator layout, sensible planting spacing, water plan and a realistic yield expectation.
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Fighting Carob Moth (Ectomyelois ceratoniae)
Carob moth, Ectomyelois ceratoniae, better known as carob moth in Turkey, is the most important pest encountered by carob in the garden and storage. Its larvae feed inside the pods, contaminating the fruit and reducing its commercial value. Moreover, this moth causes damage not only to carob, but also to many products such as pomegranates, citrus fruits, figs, dates and almonds.
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Carob Tree (Ceratonia siliqua) Botanical Characteristics
Carob (Ceratonia siliqua L.) is one of the most characteristic trees of the Mediterranean maquis, which belongs to the legume family (Fabaceae). It is easily distinguished from other fruit trees by its thick and cracking trunk, leathery hard and shiny leaves, small flowers without a crown blooming on the trunk and old branches, and a long, flat pod.
Read MoreCarob Diseases and Pests
Carob is a tree that has been grown with little care in the Mediterranean basin for centuries and is generally known as "disease and pest resistant". This reputation is largely true; however, this does not mean that the tree does not face any problems. Leaf diseases such as powdery mildew and leaf spot, wood rot in old trees, root rot in some soils, and especially the carob moth, which damages the fruit, are the main issues to be considered in the garden and storage.
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How to Grow Carob from Seed?
Carob seeds actually germinate easily; however, since they have a very hard and waterproof shell, germination is both low and irregular when planted without pre-treatment. The germination rate can be significantly increased with simple methods such as slightly abrading the shell or applying hot water.
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Fertilization in Carob Tree
Carob is a tree that is traditionally hardly fertilized, as it can grow even on poor soils. However, studies show that nitrogen in particular can increase fruit production in older gardens. What is interesting is this: Although carob is a legume, it does not form nodules on its roots and cannot bind nitrogen from the air.
Read MoreSoil Requirements for Carob Tree
Carob is known as a "contented" tree with low soil selectivity. It can grow in many different conditions, from rocky slopes to dunes, from calcareous soils to poor and shallow lands. On the other hand, it cannot withstand water-holding, heavy and airless soils and high ground water.
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Irrigation and Drought Tolerance in Carob Tree
Carob is one of the most drought-resistant fruit trees in the Mediterranean. It can survive long dry periods thanks to its deep-seated roots, thick, waxy leaves and physiological mechanisms that allow it to use water economically. However, enduring drought is not the same as yielding a bountiful crop: Studies show that even a limited amount of water given at the right periods can significantly increase yields.
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How Does Carob Flowering and Pollination Happen?
Carob is known as the only tree among Mediterranean trees whose main flowering period coincides with autumn. During this period from September to November, small, fragrant flowers bloom on the trunk and old branches; It is pollinated by insects such as bees, flies, hornets and night-flying moths, and partly by wind.
Read MoreHow to prune a carob tree?
Carob is a tree that requires little pruning, unlike many fruit trees that require regular pruning every year. Once a solid crown skeleton has been established on the young tree, a light maintenance pruning is often sufficient. The difficulty in healing large cuts and the formation of fruit largely on old wood require moderate pruning of carob.
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Male, Female and Hermaphrodite Carob Trees
Some carob trees do not bear any fruit, while others fill them with pods every year. The main reason for this is that carob is largely a dioecious species: male, female and hermaphrodite flowers are mostly found on separate trees. The male tree does not produce pods, but it provides pollen for female trees to bear fruit.
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Grafting Techniques in Carob Tree
The way to establish a productive garden in carob and to get economical products from wild trees in nature is through grafting. About half of the trees grown from seeds are male and do not produce any pods; the fruit characteristics of the female ones vary from tree to tree. Thanks to grafting, male or wild trees that produce poor quality fruit can be transformed into a known and productive variety.
Read MoreCarob Tree and Carbon Footprint
Carob; It is increasingly mentioned in climate change and carbon discussions because it is an evergreen, long-lived tree that can grow in arid regions. While current scientific reviews suggest that carob can be an additional source of income for farmers through carbon markets, they also emphasize that it is still difficult to measure how much carbon the tree binds in different climatic conditions.
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Carob Sapling Selection and Sapling Certificate
Carob is a long-lived tree; The choice of saplings made when establishing a garden determines the yield, fruit quality and operating cost of the garden for decades. It takes both time and effort to correct the mistake of the garden established with a sapling of the wrong sex, unknown variety or weak root structure.
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How Many Years Does the Carob Tree Bear Fruit? Yield and Lifespan
Carob is a long-term tree that requires patience. In gardens established with grafted saplings, the first product usually begins to be obtained a few years after planting; commercially significant yields usually come after the sixth or seventh year. The tree reaches full yield in its 20s and can last more than a hundred years in good conditions.
Read MoreIn Which Climate Does the Carob Tree Grow?
Carob is a Mediterranean tree that loves heat and light, is drought tolerant but sensitive to cold. It grows best in regions with cool but not cold winters and hot and dry summers. According to scientific sources, mature trees begin to be damaged at temperatures below –4 °C and can withstand up to –7 °C at most.
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Carob Varieties and Types in Turkey
Turkey is located within the natural distribution area of carob and both wild and grafted carob trees are found on the Mediterranean and Aegean coasts. However, rather than commercial varieties that have been named and spread over a wide area, such as in Spain or Portugal, local types specific to the region and genotypes selected from natural populations come to the fore.
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Differences between Delice (Wild) Carob and Grafted Carob
A significant part of the carob trees growing on our Mediterranean coasts are ungrafted, that is, wild or "delice" trees as they are popularly called. The pods of these trees are usually thinner, smaller and less fleshy; on the other hand, their seed ratios are often higher than grafted varieties. Grafted trees, on the other hand, stand out with their larger, fleshier and more sugary pods.
Read MoreHow to Dry and Store Carob Fruit?
Carob is a fruit that loses water spontaneously while ripening on the tree and can be stored for a long time under the right conditions. However, this durability depends on the correct management of humidity, temperature and storage hygiene after harvest. Pods that are inadequately dried or kept in a humid environment increase the risk of mold, loss of quality and insect damage.
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What are the Types of Carob?
Since carob is a tree that has been cultivated in the Mediterranean basin for thousands of years, each producing country has its own local varieties. Rojal, Negra and Duraio in Spain; Mulata and Galhosa in Portugal; Amele and Gibiliana in Italy; Tillyria (Tylliria) in Cyprus are among the most well-known of these varieties. These varieties differ significantly from each other in terms of pod size, sugar content, seed ratio, earliness and disease resistance.
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How to Plant Carob Saplings?
Carob is a long-lived tree, and the success of the garden over the decades largely depends on the steps taken during the planting phase. A planting at the right time, in suitable soil, with a tubular sapling with undamaged roots; The lifeline given afterwards and regular care in the first years ensure that the sapling holds and develops healthily.
Read MoreWhen and How to Harvest Carob?
Carob harvesting is a largely manual labor job that usually starts at the end of summer on the Mediterranean coast and lasts throughout autumn depending on the region. When the pods ripen on the tree and begin to dry, they are dropped from the branches with long poles and collected in nets or covers laid under the tree. Harvesting at the right time directly affects both the quality of the fruit and the next year's product.
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