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Variety traits

Abundance and duration of flowering

Abundance and duration of flowering are phenological indicators reflecting the density of flowers on a plant and the time span of the flowering phase, which determine the potential productivity and adaptability of a variety.

Mentioned in descriptions 4 764 varieties reference book.

Duration of flowering characterizes the period in days during which the plant is in this phase, defining the crop's window of vulnerability to external factors. Abundance of flowering represents the quantitative or visual density of flowers on a plant, serving as an indicator of reproductive capacity and potential yield.

During variety testing, evaluation is carried out based on phenological dates, including the onset, peak, and end of flowering, as well as by using scoring scales. High scores are assigned to varieties with synchronous and uniform flowering without abnormalities, whereas low values indicate weak or uneven plant development.

These indicators are determined by the genetic characteristics of the variety, as well as by the influence of photoperiodism, temperature regime, and moisture availability. Flowering stability is evaluated by comparing with regionalized standard varieties, with deviations in timing of more than five days being considered significant for determining the maturity group.

Sources10

Breakdown by crop

Abundance and duration of rose flowering 372 Abundance and Duration of Phalaenopsis Flowering 61 Abundance and Duration of Clematis Flowering 61 Abundance and Duration of Petunia Flowering 60 Abundance and duration of flowering — Hydrangea macrophylla 59 Abundance and duration of Dahlia flowering 51 Abundance and Duration of Chrysanthemum Flowering 50 Abundance and duration of flowering — Anthurium andraeanum 47 Abundance and Duration of Flowering — New Guinea Impatiens 38 Abundance and duration of flowering — Pelargonium zonale 36 Abundance and duration of peach flowering 34 Abundance and duration of Pelargonium flowering 32 Abundance and Duration of Fuchsia Flowering 25 Abundance and duration of Alstroemeria flowering 25 Abundance and duration of Dianthus caryophyllus flowering 24 Abundance and Duration of Flowering — Begonia elatior 24 Verbena flowering duration and abundance 21 Abundance and duration of Saintpaulia flowering 19 Abundance and duration of potato flowering 18 Abundance and duration of Nemesia flowering 17 Abundance and duration of flowering — Pelargonium peltatum 16 Flowering abundance and duration — Impatiens walleriana 15 Abundance and duration of flowering — Mandevilla sanderi 14 Abundance and Duration of Flowering — Pelargonium (hybrids) 13

Found in these crops

Rose 274 Moth Orchid 55 Clematis 51 Bigleaf hydrangea 49 Anthurium 45 Dahlia 41 Chrysanthemum 38 Petunia 38 Calibrachoa 37 Peach 32 Horseshoe pelargonium 28 New Guinea Impatiens 26

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Josefine

Active

Vinca minor L. · Lesser periwinkle

Herbert Menke

DE
1 record

Kermit

Active

Erica arborea L. · Tree Heath

Johannes van Leuven

DE
1 record

Kavkazka Polonianka

Terminated

Chrysanthemum L. · Chrysanthemum

Zavidova Liudmyla Hnativna, Horobets Vasyl Fedorovych,

UA
2 records

Karoline

Active

Erica gracilis J. C. Wendl. · Slender heath

HEINZ MANTEN

DE
1 record

KAORI

Withdrawn

Dianthus caryophyllus L. · Carnation

BARBERET & BLANC, S.A.

ES
1 record

Kanarienvogel

Terminated

Antirrhinum majus L. · Snapdragon

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

PL
1 record

Karavaievs'kyi

Terminated

Chaenomeles japonica (Thunb.) Lindl. ex Spach · Japanese quince

Nedvyha Oleh Mykolaiovych, Klymenko Svitlana Valentynivna,

UA
1 record

Kama Różowa

Terminated

Begonia Semperflorens-Cultorum Group · Bedding Begonia

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

PL
2 records

INTERPEEL

Terminated

Rosa L. · Rose

INTERPLANT BV (NL)

FR
1 record

INGE

Withdrawn

Saintpaulia ionantha H. Wendl. · African violet

ARNOLD FISCHER

DK
1 record

HBA202911

Active

Hydrangea L. · Hydrangea

André Smaal c/o Hydrangea Breeders Association B.V.

DE
1 record

HARGLOBE

Terminated

Rosa L. · Rose

HARKNESS ROSES and Co Ltd (GB)

FR
1 record

Helstrau

Terminated

Rosa L. · Rose

HETZEL| Karl Hetzel (+)

DE
1 record

Hommik

Active

Clematis L. · Clematis

Uno Kivistik, Aili Kivistik

EE
1 record

Helena

Active

Erica gracilis J. C. Wendl. · Slender heath

Hans-Peter Holz

DE
1 record

Helsingi

Active

Clematis L. · Clematis

Aili Kivistik

EE
1 record

Gea

Terminated

Dahlia Cav. · Dahlia

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

PL
1 record

Grobina

Active

Tulipa L. · Tulip

Juris Egle

NL
1 record

Grunwald

Terminated

Clematis L. · Clematis

Szczepan Marczyński

PL
1 record

Good Times

Active

Phalaenopsis Bl. · Moth Orchid

Floricultura B.V.

NL
1 record

Fiswig

Active

Pelargonium graveolens L'Hér. · Rose geranium

SCHUMANN INGEBORG

IT
1 record

FIFI

Protection expired

Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium

PETER JACOBSEN

DK
1 record

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