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Variety traits

Watermelon sweetness

Citrullus lanatus (Thunb.) Matsum. & Nakai

An indicator of watermelon quality and ripeness, measured in degrees Brix (°Bx) as the percentage of soluble solids in the flesh.

In the reference 306 varieties crop Watermelon, where this is mentioned in the description.

To assess sweetness, refractometers are used to measure the refractive index of the fruit juice. Typical values for watermelon range from 9% to 13% Brix, with a value of 10% or higher considered the standard level of ripeness for commercial sale. It is important to note that the distribution of sugars in the fruit is non-uniform: the concentration of soluble solids is significantly higher in the center than near the edges.

Sugar accumulation depends on growing conditions, including optimal temperatures of +25°C to +30°C during the day and no lower than +18°C at night, as well as high light intensity. A key agronomic practice is to restrict irrigation a week before harvest to prevent dilution of the flesh. Sufficient potassium supply promotes efficient transport of sugars into the fruits, while the potential level of sweetness is also limited by the genetic characteristics of the variety.

General information about the subject — on the page Sugar content.

Sources8

Varieties of Watermelon mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Starship

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Enza Zaden Beheer B.V.

NL
3 records

Songhai

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

SAKATA SEED AMERICA INC US

FR
2 records

UG 610

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Exotica

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA SEEDS BV

ES
3 records

Dynamo

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Tresor

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

TAKII EUROPE B V

NL
4 records

Batukan

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Syngenta Seeds B.V.

NL
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Syngenta Seeds B.V.

NL
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Enza Zaden Beheer B.V.

NL
3 records

Amphion

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Lachmann Siegfried

UA
3 records

Liliput

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA (1939)

ES
2 records

La Joya

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

ORIGENE SEEDS Ltd

ES
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Domaine Public (FR)

FR
2 records

Emerald

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA (1939)

ES
2 records

Madaga

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Vilmorin SA (FR)

FR
2 records

Lucinda

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

SEMILLAS FITO, S.A.

ES
2 records

Loristo

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Enza Zaden Beheer B.V.

NL
3 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Citadel

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

SAKATA SEED AMERICA INC US

FR
2 records

Cato

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Syngenta Crop Protection AG

NL
3 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Nunhems B.V.

NL
4 records

SV0051WA

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Monsanto Vegetable IP Management B.V.

NL
4 records

Baron

Protection expired

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

PETOSEED CO

GR
2 records

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