Apple
Globose fruit (pome/false fruit), with thin skin and firm pulp, with a sweet-acidic flavor. Colors vary between red, green, and yellow, with most nutrients and fibers concentrated in the skin. Rich in fiber (mainly pectin) and antioxidants, such as quercetin.
Apple Tree
Musaceae
Malus domestica Borkh.
Common Cultivated Apple Tree
Malus pumila
Dwarf Apple Tree/Rootstock (Synonym or Related Species)
Malus sieversii
Asian Wild Apple (Ancestor of the Domestic Apple)
The apple is the false fruit (pome) of the apple tree (Malus domestica), a deciduous temperate climate tree, native to Central Asia. It is botanically classified as a pome, which forms from the development of the floral receptacle, not just the ovary. The fruit is one of the most cultivated and consumed in the world, with popular varieties in Brazil such as Gala and Fuji. It is notable for its high fiber content (pectin) and for being a food with a low glycemic index.
The leaves, being deciduous, are essential in the apple tree's life cycle, indicating the period of dormancy in winter. In traditional herbal medicine, apple leaf tea is sometimes used due to its astringent properties. Leaf management and pruning are crucial for light penetration and the quality of fruiting in the following year.
The apple tree trunk is formed by dense, durable wood, capable of supporting the weight of the fruit even during phases of high production. The plant has vegetative buds and floral buds, which differentiate along the stem and directly influence fruiting. The management of the stem and branches — such as training pruning and production pruning — is essential to balance vegetative growth and productivity.
The root system of the adult apple tree is superficial and fibrous, but the use of specific rootstocks is fundamental in modern fruit growing. The rootstock influences the vigor of the apple tree (dwarf, semi-dwarf, or vigorous size) and its absorption capacity in different soil types. The main function of the root is to anchor the plant to the soil and ensure the accumulation of reserves for the next growing season.
Apple seeds are rich in lipids and phenolic compounds, protected by a resistant seed coat. Since they result from cross-pollination (high heterozygosity), plants originating from seeds generate individuals very different from the mother plant. Therefore, commercial apple production uses clonal rootstocks, ensuring uniformity of size, vigor, and disease resistance, while seeds are used almost exclusively for genetic research.
Flowering typically occurs between August and October in Southern Brazil (where production is concentrated) and is sensitive to late frosts. The dependence on cross-pollination by insects (bees) is high; the quality of the bloom directly impacts the number and size of the fruits. The central flower of the cluster (king bloom) generally gives rise to the best caliber fruit, and the excess flowers are removed in the thinning process.
Aids in Weight Loss
Helps in weight loss, as the fibers and water promote satiety.
Cholesterol Control
Rich in pectin, which helps lower bad cholesterol (LDL).
Diabetes Management
Contributes to diabetes control due to its low glycemic index.
Regulated Intestinal Function
Improves intestinal function (both in cases of constipation and diarrhea - when cooked).
Cardiovascular Protection
Protects the cardiovascular system because it is rich in antioxidants (flavonoids).
Oral Hygiene
Aids in oral hygiene, cleaning teeth and strengthening gums.
Asthma Prevention
May help decrease the incidence of asthma in some people.
Botanical Family
The apple tree belongs to the Rosaceae family, the same as roses, pears, and peaches.
Vast Variety
There are over 7,500 apple varieties cultivated worldwide.
Nutrients in the Peel
Most of the nutrients and fibers, like pectin, are concentrated in the fruit's peel.
Classification as False Fruit
The apple is a pome (false fruit), as the fleshy part we eat develops from the floral receptacle, and not solely from the ovary.
Buoyancy
The apple floats in water because about 25% of its volume is composed of air.
- 1.Embrapa – Apple Crop Manual. Embrapa – Manual da Cultura da Macieira: Botânica e Fisiologia (Apple Crop Manual: Botany and Physiology). 1986. (Plant structure).
- 2.Apple Benefits (Tua Saúde). Tua Saúde – 15 benefícios da maçã para saúde e como consumir (15 health benefits of apple and how to consume it). (Benefits and uses).
- 3.Pollination and Cultivation (ABELHA). A.B.E.L.H.A. – Maçã (Apple). (Pollination and cultivation).
- 4.Nutritional Value of Apple (ABPM). ABPM (Brazilian Apple Producers Association) – Valor Nutricional da Maçã (Nutritional Value of Apple). (Nutritional table).
- 5.Phenolic Compounds and Antioxidant Activity. Journal of Agricultural and Food Chemistry – Phenolic compounds in apples and their contribution to antioxidant activity. 2005.
- 6.Apples: Botany, Production and Uses. Ferree, D.C.; Warrington, I.J. (Eds.) Apples: Botany, Production and Uses. CABI Publishing, 2003.
- 7.Apple Production Systems (Embrapa Uva e Vinho). Embrapa Uva e Vinho. Sistemas de Produção da Macieira – Morfologia, Propagação e Manejo da Planta (Apple Production Systems – Morphology, Propagation and Plant Management).
- 8.Rootstocks for Temperate Fruit Crops. Webster, A.D. “Rootstocks for temperate fruit crops.” Horticultural Reviews, 1995.