Characterization Descriptors of the Heirloom Tomato "Tres Cantos"
Infinite Seeds Association
We curate, preserve, and reproduce a collection of 1,700 heirloom tomato varieties for public use. We work to prevent genetic erosion.
History and Origin of the Variety
Historical Origin
Tres Cantos is a native heirloom variety native to the town of Tres Cantos, located in the Community of Madrid, Spain. This variety represents the result of decades of traditional selection and breeding carried out by local farmers in this central region of the Iberian Peninsula, who have successfully adapted tomato cultivation to the specific conditions of the Mediterranean continental climate.
The history of Tres Cantos is closely linked to the agricultural tradition of the town of the same name, where for generations local gardeners have maintained and perfected this variety, turning it into a symbol of local identity. The variety's name derives directly from its place of origin, reflecting the community's pride and connection with this vegetable, which has become emblematic of the region.
This variety has been traditionally cultivated using sustainable methods and without the use of pesticides or harmful chemicals, which has contributed to both preserving its original characteristics and maintaining the ecological balance of the crops. The farmers of Tres Cantos have acted as true custodians of the genetic heritage, carefully selecting seeds from the best specimens generation after generation.
Curiosities of Variety
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Geographical name: Named directly by its town of origin: Tres Cantos (Madrid)
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Local synonyms: Also known as "round tomato" or "red tomato" due to its morphological characteristics.
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Local symbol: Considered emblematic of the agricultural identity of Tres Cantos
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Sustainable farming: Traditionally grown without pesticides or chemicals
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Exceptional size: One of the largest tomato varieties, reaching up to 500 grams
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Culinary versatility: Especially valued for salads and stuffed tomatoes
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Outstanding productivity: Recognized for its high productive capacity
Cultural Importance
The Tres Cantos variety transcends its horticultural value to become a symbol of Madrid's cultural and agricultural preservation. This variety represents the continuity of a tradition that has successfully kept sustainable agricultural practices alive in the context of Madrid's peri-urban agriculture.
Its cultivation not only represents a source of income for local farmers but also constitutes a fundamental element of the agricultural heritage of the Community of Madrid. The Tres Cantos variety demonstrates how innovation in traditional breeding can coexist with the preservation of the authentic characteristics of local varieties.
This variety has become a model of sustainable and local agriculture, valued by both local consumers and chefs seeking unique ingredients with history and cultural significance. Its cultivation contributes to the preservation of the traditional agricultural landscape and the maintenance of horticultural biodiversity in the Madrid metropolitan area.
1. PLANT DESCRIPTORS
Feature |
Evaluation for "Tres Cantos" |
Type of growth |
Indeterminate |
Growth habit |
Erect and very vigorous |
Plant height |
Very tall (150-170 cm) |
Plant vigor |
Exceptional |
Color of young stem |
Green |
Pubescence of the stem |
Present |
Hair density |
Average |
Leaf type |
Regular (not potato type) |
Leaf color |
Dark green |
Leaflet shape |
Lobed and hairy |
Leaflet edge |
Jagged |
Leaf pubescence |
Present |
3. FRUIT DESCRIPTORS
Feature |
Evaluation for "Tres Cantos" |
Fruit shape |
Globose round |
Fruit weight |
Very large (200-500 g) |
Fruit diameter |
Very large (10-15 cm) |
Color of unripe fruit |
Green |
Color of ripe fruit |
Deep red / Carmine pink |
Color intensity |
Very intense |
Color uniformity |
Very uniform |
Presence of green shoulders |
Absent |
Shoulder shape |
Rounded |
Surface smoothness |
Smooth and shiny |
Presence of ribs |
Absent |
Fruit shine |
Bright |
Chalice scar |
Median |
Pistil scar |
Small |
Number of locules |
4-6 |
Distribution of locules |
Regular |
Thickness of the walls |
Thick (6-8 mm) |
Firmness of the pulp |
Firm and very fleshy |
Pulp color |
Deep red |
Amount of juice |
Very juicy |
Quantity of seeds |
Moderate (40-60) |
6. AGRONOMIC CHARACTERISTICS
Feature |
Evaluation for "Tres Cantos" |
Days to flowering |
Medium-late (70-80) |
Days to harvest |
Medium-late (85-95 days from transplant) |
Yield per plant |
Very tall (6-10 kg) |
Number of fruits per plant |
Medium-low (8-15) |
Harvest concentration |
Staggered (mid-season) |
Heat tolerance |
Good |
Cold tolerance |
Moderate |
Low light adaptation |
Regular |
Recommended spacing |
80-100 cm between plants |
7. RESISTANCES AND TOLERANCES
Pathogen/Pest |
Evaluation for "Tres Cantos" |
Alternaria (Alternaria solani) |
Moderately resistant |
Fusarium (Fusarium oxysporum) |
Moderately resistant |
Verticillium (Verticillium dahliae) |
Moderately resistant |
Mildew (Phytophthora infestans) |
Susceptible |
Powdery mildew (Leveillula taurica) |
Susceptible |
Bacterial wilt (Ralstonia solanacearum) |
Susceptible |
Bacterial freckle (Pseudomonas syringae) |
Susceptible |
Tomato mosaic virus (ToMV) |
Susceptible |
Yellow leaf curl virus (TYLCV) |
Susceptible |
Whitefly (Bemisia tabaci) |
Susceptible |
Trips (Thrips tabaci) |
Susceptible |
Aphids |
Susceptible |
Cracking |
Moderately resistant |
Apical necrosis |
Susceptible |
SPECIAL CHARACTERISTICS OF THE "TRES CANTOS" VARIETY
Featured Attributes:
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Exceptional size: One of the largest varieties, with fruits weighing 200-500 grams
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Extraordinary productivity: Extremely productive plants with yields of 6-10 kg per plant
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Balanced and delicious flavor: Rich, sweet and balanced flavor ideal for varied culinary use
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Remarkable uniformity: Very uniform fruits in size and shape, perfect for the market
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Continental adaptation: Excellent adaptation to the continental Mediterranean climate of Madrid
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Culinary versatility: Ideal for salads, stuffed tomatoes and multiple preparations
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Sustainable cultivation: Traditionally cultivated with ecological and sustainable methods
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Regional symbol: Emblematic variety of Madrid agriculture
Limitations:
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Support requirements: Requires robust tutoring systems due to the heavy weight of the fruit.
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Fungal sensitivity: Susceptible to mildew and powdery mildew, especially under high humidity conditions
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Nutritional needs: Very demanding in nutrients, requires well-fertilized soils
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Climate vulnerability: Sensitive to extreme temperatures (below 12°C and above 35°C)
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Specialized management: Requires regular pruning and careful handling to optimize production
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Wide spacing: Requires generous spacing between plants (80-100 cm)
Recommended Uses:
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Gourmet salads: Excellent for salads where size and flavor are the protagonists
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Stuffed tomatoes: Ideal for stuffed preparations due to their size and shape
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Madrid cuisine: Perfect for traditional recipes from Madrid and central Spain
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Fresh market: Excellent for marketing in local and proximity markets
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Peri-urban agriculture: Ideal for crops in areas near Madrid
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Collecting Iberian varieties: Essential for Spanish tomato collections
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Cultivation in continental climate: Excellent option for regions with a continental Mediterranean climate
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Heritage Preservation: Essential for conservation programs for native Madrid varieties
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Gastronomic tourism: Perfect for culinary experiences in the Community of Madrid
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Mediterranean family gardens: Ideal for gardeners looking for productive and tasty varieties
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Productivity research: Valuable for studies on high-yielding varieties
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Sustainable Agriculture Education: An Excellent Tool for Teaching Traditional Techniques
Data based on the characterization of farmers in Tres Cantos (Madrid), information from specialized seed companies, documentation on native varieties from the Community of Madrid, testimonials from local gardeners, and references on sustainable traditional agriculture in central Spain.