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Variety traits

Rose tolerance

Rosa L.

The ability of rose cultivars to maintain viability, decorative value, and productivity under biotic or abiotic stress conditions without complete plant mortality.

In the reference 64 varieties crop Rose, where this is mentioned in the description.

Biotic tolerance in roses is primarily assessed visually based on the degree of infection by powdery mildew or black spot. Professional certification often employs a scoring scale from 0, corresponding to immunity, to 4, indicating high susceptibility with pronounced pathogen symptoms.

Abiotic tolerance to environmental factors, such as drought, salinity, or temperature fluctuations, is determined through physiological markers. These include measurements of chlorophyll fluorescence for frost hardiness assessment, analysis of electrolyte leakage and malondialdehyde content for heat stress diagnosis, as well as indicators of gas exchange and transpiration rates.

When evaluating the trait, production parameters such as plant biomass, as well as flower count and size, are taken into account. Tolerant cultivars under extreme temperatures, for instance above 30°C, demonstrate a lower tendency for petal abscission, maintaining marketability and flowering stability.

General information about the subject — on the page Tolerance.

Sources8

Varieties of Rose 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.

TAN 01549

Active

Rosa L. · Rose

Hans Jurgen Evers

UA
12 records

TANFU DERMOS

Protection expired

Rosa L. · Rose

TANTAU NACH| Rosen Tantau Mathias Tantau Nachfolger

DE DK NL
5 records

Meidebenne

Active

Rosa L. · Rose

MEILLAND ALAIN ANTOINE

BG FR HU PL UA
22 records

Meibonrib

Active

Rosa L. · Rose

Meilland, Alain A.|Antibes, France

DE DK FR IT NL PL
12 records

Tanotax

Active

Rosa L. · Rose

Rosen-Tantau Mathias Tantau Nachfolger

DE DK FR IT NL PL
10 records

Ausmum

Active

Rosa L. · Rose

David J.C.Austin

9 records

Pouleas

Application submitted

Rosa L. · Rose

POULSEN ROSER A/S

DK NL PL
9 records

Nirpwhi

Active

Rosa L. · Rose

HANS JURGEN EVERS (T)

7 records

Meiparnin

Active

Rosa L. · Rose

Meilland, Alain A.|Antibes, France

DE FR IT
7 records

Meiratcan

Active

Rosa L. · Rose

Meilland International S.A.

FR
5 records

Korwonder

Protection expired

Rosa L. · Rose

W. Kordes Sohne Rosenschulen GmbH & Co KG| DE

DE DK FR NL
5 records

Korvuebell

Active

Rosa L. · Rose

Wilhelm Kordes^^^Tim-Hermann Kordes^^^John Vincent Kordes

6 records

Korjoslio

Active

Rosa L. · Rose

WILHELM-ALEXANDER KORDES

5 records

Koreledas

Protection expired

Rosa L. · Rose

Wilhelm Kordes / Tim-Hermann Kordes / Margarita Kordes in Fa. W. Kordes' Söhne Rosenschulen GmbH & Co KG

DE FR NL
5 records

Korsehendie

Active

Rosa L. · Rose

WILHELM-ALEXANDER KORDES

4 records

Kordapt

Protection expired

Rosa L. · Rose

W. Kordes Sohne Rosenschulen GmbH & Co KG| DE

DE FR NL
5 records

KORberonem

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

4 records

TAN 04179

Active

Rosa L. · Rose

CHRISTIAN EVERS

3 records

Tantumleh

Protection expired

Rosa L. · Rose

Rosen-Tantau Mathias Tantau Nachfolger

AT DE NL
3 records

Poullug

Active

Rosa L. · Rose

Poulsen Roser A/S

PL
3 records

Poulcy033

Active

Rosa L. · Rose

Poulsen Roser A/S

4 records

Noa16071

Active

Rosa L. · Rose

Reinhard Noack

3 records

Meituraphar

Protection expired

Rosa L. · Rose

Meilland, Marie-Louise

DK FR SE
3 records

Meiplumty

Active

Rosa L. · Rose

Meilland Alain M.

3 records