Plant material and taxonomy of watermelon
Watermelon (Citrullus lanatus) is an annual herbaceous plant belonging to the family cucurbitaceae, which also includes other vegetables such as cucumber, squash, and zucchini. Also popularly known as watermelon, watermelon, melon or watermelon, stands out for being a large fruit With a high water content, reaching percentages above 90%. Its cultivation has spread throughout the planet, adapting to numerous regions thanks to its resistance and the genetic selection carried out over centuries.
Plant The watermelon fruit develops creeping or climbing stems, five-lobed leaves, and deep yellow unisexual flowers. The fruit, known as peponide, can weigh several tens of kilos and has a red, pink, or to a lesser extent yellow pulp, characterized by its sweetness and juiciness.
Inside, the watermelon contains numerous black, brown or white seeds, up to 1 cm, which They are rich in vitamin E and have been used as food or in traditional medicine by different cultures.
As for the taxonomic origin, the term citrullus comes from the Latin diminutive of Citrus, referring to its refreshing aroma and flavor, while lanatus alludes to its "woolly" texture.
Origin of the word watermelon and its different names
El name watermelon It has deep etymological and cultural roots. It comes from Hispanic Arabic. sandiyya, in turn derived from classical Arabic sindiyyah, which refers to the Sindh region of Pakistan. In each country and region where it is grown, watermelon has a specific name: water melon in Spain, pin in Venezuela and Colombia, watermelon in Brazil, or simply "sandÃa" in most Spanish-speaking countries. This diversity of names underscores the importance and presence of watermelon in popular culture worldwide.
Where does watermelon come from?
El authentic origin of watermelon It has been the subject of research and debate for decades. Most scientific evidence places its place of origin in Africa, specifically in the desert regions of the south and northeast of the continent. Archaeobotanical research has found seeds at sites in Libya and Egypt that are more than 5.000 years old, including in the tombs of pharaohs like Tutankhamun, revealing their importance as a source of water in arid, hot places.
Recently, genetic studies have confirmed that the current cultivated watermelon descends from the Kordofan melon (C. lanatus) from Sudan and not from the South African citron melon, as previously thought. Ancient Egyptian paintings support these findings, showing light-fleshed watermelons offered to the gods alongside other fruits.
Thus, beyond the legend, the watermelon emerges as a food essential for survival in harsh climates, through its original use as a "water reserve" to supply populations during summer droughts.
The primitive uses and evolution of watermelon
In its earliest forms, The watermelon was small, tasteless and bitterThe ancient Egyptians and neighboring civilizations exploited it primarily for its juice, vital in the Nile Valley. Its medicinal use dates back to Greek physicians, who considered watermelon an excellent diuretic and remedy for heat stroke in children.
Thanks to the process of artificial selection carried out by humans, the watermelon evolved into a sweet, red-fleshed fruit. The distinctive reddish color is due to the accumulation of lycopene, a potent carotenoid antioxidant. Modern studies have revealed that a specific gene, ClLCYB, regulates the synthesis of these pigments, so that human-cultivated watermelon varieties have higher sugar content and color.
The global expansion of watermelon
The historic watermelon route follows in the footsteps of the Mediterranean trade routesAfter its domestication in Africa and Egypt, the watermelon spread to Persia, India, and later China, where records of its presence date back many centuries. Its success was due to its hydrating properties and the ease with which the seeds could be transported on long journeys.
In Europe, watermelon was introduced and cultivated mainly in the south, especially in Spain, Italy and Greece, thanks to Arab influences. During the Muslim expansion into the Iberian Peninsula, the Arabs devised irrigation ditches and advanced irrigation systems that allowed the watermelon to acclimatize to the Mediterranean soil and climate. Since then, this fruit has gone from being a survival crop to becoming a common summer treat in the European diet.
Later, European colonizers brought watermelon to the Americas, where it adapted and thrived in the United States, Brazil, Mexico, and much of Central America. There, it remains a fundamental part of the popular diet.
It is interesting how the fruit acquired different symbolisms, both in Egyptian and American culture, where it acquired political and social connotations.
Modern production, genetics and varieties of watermelon
El watermelon cultivation has undergone a profound transformation in recent decades thanks to advances in genetics and plant breeding. Currently, most commercial watermelons are hybrids obtained by crossing Citrullus maxima y Citrullus moschata, species chosen for their resistance and fruit quality.
Research in genetics has made it possible to obtain seedless watermelons and other varieties with different flesh colors (red, yellow, orange) and shapes (round, elongated, and even square in Japan). Thanks to genomic analysis, the genes responsible not only for aroma, sweetness, and color, but also for resistance to diseases, pests, and adverse weather conditions, have been identified.
Genetic improvement Traditionally, it has focused on obtaining plants that are better adapted to the environment, but in recent decades it has also focused on improving the consumer experience: size, flavor, texture, shelf life, and aroma profile.
Watermelon as a nutritional and medicinal resource
| Watermelon, raw – Nutritional value per 100 g | ||
|---|---|---|
| Sustainable | 30 kcal / 127 kJ | |
| Carbohydrates | 7,55 g | |
| Sugars | 6,2 g | |
| Dietary fiber | 0,4 g | |
| Fats | 0,15 g | |
| Proteins | 0,61 g | |
| Water | 91,45 g | |
| Vitamin C: | 8,1 mg | |
| Vitamin A (Retinol) | 28 μg | |
| Potassium | 112 mg | |
| Lycopene | 4.532 μg | |
| Magnesium | 10 mg | |
| Source: USDA. Estimated average values. | ||
Watermelon stands out for its low calorie content and its balanced nutritional profile, especially for its contribution in vitamin C, potassium y lycopeneIt is used in many countries in traditional medicine to treat everything from kidney disorders to relief from burns and rheumatic problems. Furthermore, the watermelon rind is edible and is increasingly being used as a base for new products, from pickles to high-fiber cereals.
Its high water content makes watermelon an ideal food for hydration and protection against heat stroke. It is mildly diuretic, and its seeds contain compounds such as cucurbitacin, which have been investigated for their potential benefits.
Cultivation, agronomic techniques and expansion in the world
Growing watermelon requires high temperatures, well-drained soils and long periods of sunlight. Sowing is done directly or by transplanting, and grafting on hybrid pumpkin rootstocks It has allowed us to increase resistance to soil diseases and expand the range of tolerated temperatures.
Today, countries such as China, Iran, Turkey, India, Brazil, Mexico, and Spain make up the group of major producers worldwide. It is in Andalusia and the Spanish Levant where watermelon has found the ideal climate and soil, to the point of becoming one of the benchmarks of summer horticulture.
Gastronomic and cultural uses of watermelon
In addition to being eaten fresh, watermelon is very versatile in the kitchenIt's used in salads, juices, sorbets, ice cream, and even in variations of gazpacho. Its flavor pairs perfectly with feta cheese, mint, lemon, or cucumber. In Asia, America, and various regions of Europe, watermelon is a staple at fairs and festivals, a symbol of the arrival of summer and collective joy.
In Mexican popular culture, the watermelon symbolizes the national colors and has been a source of artistic inspiration for artists such as Frida Kahlo, Diego Rivera, and Rufino Tamayo. Throughout history, the watermelon has acquired symbolic meanings related to abundance, fertility, and summer joy.
Curiosities, scientific advances and the future of watermelon
Watermelons are the subject of numerous curiosities and studies. For example, the sound they produce when tapped can indicate their ripeness (based on experiments with African drums and advanced acoustics). Recent scientific advances focus on developing new varieties that are more resistant to climate change and disease, and with an improved nutritional profile thanks to the use of wild genes.
Sustainable development of the crop and the use of breeding techniques without resorting to transgenic methods is allowing the creation of watermelons more adapted to the tastes and needs of the modern consumer, such as miniature or thin-rind varieties for single-person households.
The watermelon, a fruit closely linked to history, science, and culture, has traveled for thousands of years from the African desert to modern plantations and tables around the world. Today, it remains a symbol of freshness, health, and joy, continually evolving thanks to agricultural science and tradition. Every summer, when you enjoy a juicy slice, you participate in a tradition that unites the past, technology, and pleasure in every bite.