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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.

Olympia

Active

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

Known You Seed, Tw

HU
3 records

Brabba

Active

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

Nunhems B.V.

NL
3 records

Crimara

Active

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

United Genetics Seeds, USA

PT
4 records

King of Hearts

Terminated

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

PETOSEED CO

ES
3 records

Legio

Active

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

SAKATA SEED AMERICA INC US

FR UA
3 records

Gloria

Active

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

Knownyous.

HU
3 records

Elghali

Active

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

Syngenta Seeds B.V.

NL UA
3 records

Saniara

Active

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

Enza Zaden Bikhir B.V.

NL UA
3 records

Lido

Application submitted

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

LARK SEEDS INTERNATIONAL, USA

BG GR
3 records

Oneida

Active

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

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
3 records

Big Jack

Active

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

Enza Zaden Beheer B.V.

NL
4 records

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

Clause (FR)

FR
3 records

Dulzor

Active

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

TAKII EUROPE B V

NL
3 records

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

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Aswan

Active

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

Sakata Seed Corporation

ES
3 records

Bouquet

Terminated

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

Wun - Yu Chen

NL
3 records

Antilop

Active

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

XINGPING ZHANG

NL
3 records

Early star

Terminated

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

PETOSEED CO

ES IT
4 records

Romeria

Active

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

United Genetics, I

PT
4 records

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

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

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

Nunhems B.V.

NL UA
4 records

Samba

Active

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

Cora Seeds SRL, I

HU
3 records

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

Monsanto Vegetable IP Management B.V.

NL UA
5 records

Sinfonia

Active

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

Sakata Vegetables Europe S.A.S

FR UA
3 records

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