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Naktuinbouw calibration book

Tulipa L.

tulip

Version 1

© Naktuinbouw, December 2010

Naktuinbouw calibration book tulip TP/115/3

© Naktuinbouw 2010 Version 1 page 2 of 70

imac03

Tekstvak

© Naktuinbouw 2010 No part of this electronic/digital edition may be reproduced in any form, by print, photoprint, microfilm or any other means without written permission from Naktuinbouw.



Introduction

In front of you, you find the Naktuinbouw calibration book for tulip. This book may be used as guidance

for the completion of application forms, the describing of varieties or the understanding of variety

descriptions. This book can not replace the skill needed to make a variety description, but may serve as

support.

Sources used

The basis for this book is the CPVO protocol TP/115/3 which in turn is based on UPOV Guideline

TG/115/4. The application of this calibration book is based on the general UPOV principles on the

definitions and use of characteristics of variety descriptions (UPOV TG/1/3). Please also use these

sources for reference when using this calibration book.

Application methodology

The UPOV system is based on the expression of characteristics that are related to the expression

values of example varieties. In the calibration book you find two types of characteristics; visually

assessed characteristics and measured characteristics.

The value of the visually assessed characteristics can be compared with the visual value of the

expression of example varieties. In the calibration book you may find drawings or pictures to assist in the

decision on the applicable expression.

For measured characteristics this is more complicated as in many cases the value of the measurements

is depending on the (climatical) conditions of the trials. The use of example varieties in these cases is

indispensable. The same applies for those visually assessed characteristics that are prone to influence

by climate (e.g. anthocyanin coloration). In this calibration book these example varieties are only

included for the characteristics that appear in the Technical Questionnaire. Others are not included as

many prefer their own set of example varieties, but may be found in the relevant CPVO protocol.

The quantitative characteristics of candidate varieties are, in many cases compared with the measured

data of a set example varieties (e.g.plant: length). The measured data of candidate varieties and

example varieties can fluctuate from year to year due to environmental and culture conditions. But all

example varieties have a established and unchangeable description. If in year 1 the plant: length of the

example variety ‘V’ in 5 (medium) is 60 cm and candidate variety ‘A’ also has a length of 60 cm, than

variety ‘A’ is classified in 5 as well. If in year 2 the plant: length of the same example variety ‘V’ is 65 cm

( e.g. because of extreme weather) and the plant: length of candidate variety ‘B’ is also 65 cm, Variety ‘B’

is also classified in 5.

In this way the classification of candidate varieties is made independent from year-, climate- and

environmental circumstances

Website

The CPVO and UPOV documents mentioned above can be found on the Naktuinbouw website

(http://www.naktuinbouw.nl/onderwerp/kalibratieboeken). On this website you can also find

announcements of possible modifications of the published calibration books.



Helpdesk

For possible remarks, suggestions and questions on the calibration books and the website, you may

contact Naktuinbouw at our email address: [email protected]



Contents

Char.nr. Description

Introduction

1 Plant height

2 Stem number of flowers

3 Stem anthocyanin coloration

4 Stem position of anthocyanin coloration

5 Leaf shape

6 Leaf variegation

7 Leaf distribution of variegation

8 Leaf colour of variegation

9 Leaf undulation of margin

10 Flower type

11 Flower length

12 Flower shape

13 Flower main colour

14 Flower number of colours on outer side

15 Flower distribution of secondary colour on outer side

16 Flower secondary colour on outer side

17 Flower fringe

18 Flower conspicuousness of fringe

19 Flower position of fringe on tepals

20 Flower shape of tip of outer tepals

21 Flower main colour of central part of outer side

of inner tepal

22 Flower main colour of marginal part of outer side

of inner tepal

23 Flower main colour of central part of inner side

of inner tepal

24 Flower main colour of marginal part of inner side

of inner tepal

25 Flower main colour of macule on inner side

26 Flower different colour of border of macule

27 Stamen number of colours of filament

28 Stamen colour of basal half of filament

29 Stamen colour of distal half of filament

30 Stamen colour of pollen

31 Plant beginning of flowering (natural conditions)

TQ-kenmerken



1 Plant: height

Version date: 15/11/2006

The plant height is measured from the cut (directly above soil level), to the highest point of the flower.



1 Plant: height

Release date: 15/11/2006

Type of observation: measurement

Measured in: cm's

Number of plants for evaluation: 10

Number of observations: 10

Observation: all applications

Time: When the tulip is ripe. This is the stage that the pollen from the stamens begin to become loose.

The tulips are evaluated in the closed position.

Method: On the field, cut the tulips at soil level. With a ruler, measure the length of the tulips from the cut

point to the highest point (in cm). 10 of the measurements are averaged and then converted into a class.

Photo: The photo shows how the height of the tulip is measured.

Notes and states of expression:

1: very short

2: very short to short

3: short

4: short to medium

5: medium

6: medium to tall

7: tall

8: tall to very tall

9: very tall



2 Stem: number of flowers


1: one (flower)

2: more than one (flower)



2 Stem: number of flowers


Type of observation: counting

Measured in: number





The number of the flowers per plant are counted.

Method: Visually observe the whole plot of the plants. In case of more than one flower per plant, make a

remark where necessary.

Photo: The photos show the plants with only one flower (top) and the plants with more than one flowers

(below).


1: one

2: more than one



3 Stem: anthocyanin coloration


1: absent

No anthocyanin coloration

9: present

The anthocyanin coloration is medium

9: present

The anthocyanin coloration is medium

9: present

The anthocyanin coloration is strong



3 Stem: anthocyanin coloration


Type of observation: visual

Scoreset: 1,9





Method: Visually observe the anthocyanin coloration of the stem and make a mark when the

anthocyanin coloration is very weak or weak strong.

Photo: The photos showed the plant stem without anthocyanin coloration and the stem with

anthocyanin coloration of weak, medium or strong.


1: absent

9: present



4 Stem: position of anthocyanin coloration



Scoreset: 1,2





Method: Visually observe the distribution of anthocyanin coloration on the stem.

Photo: -


1: distal part only

2: whole stem



5 Leaf: shape


Illustrations of leaf shape

1: linear

5: narrow

ovate

2: narrow elliptic

6: medium ovate

3: medium elliptic

7: broad ovate

4: broad elliptic



5 Leaf: shape



Scoreset: 1,2,3,4,5,6,7





Method: Take off basal leaf from the stem and spread the leaf on a smooth surface and visually observe

the shape of the leaf.

Photos: Illustrations show different leaf shapes.


1: linear

2: narrow elliptic

3: medium elliptic

4: broad elliptic

5: narrow ovate

6: medium ovate

7: broad ovate



6 Leaf: variegation


1: absent, no variegation.

9: present, there is variegation in the margin.



6 Leaf: variegation



Scoreset: 1,9





Method: Visually observe weather it is absent or present of the variegation on the upper side of the

leaves.

Photos: Photos show different leaf variegations.


1: absent

9: present



7 Leaf: distribution of variegation


1: on margin

5: stripes



7 Leaf: distribution of variegation



Scoreset: 1,2,3,4,5





Method: Visually observe the distribution of the leaf variegation.

Photos: The photos show the different types of leaf variegations.


1: on margin

2: marginal zone

3: dots

4: dots and stripes

5: stripes



8 Leaf: colour of variegation


3: yellow (variegation)

6: purple (variegation)



8 Leaf: colour of variegation



Scoreset: 1,2,3,4,5,6





Method: Visually observe the colour of the leaf variegation.

Photos: The photos show the different colours of leaf variegation.


1: white

2: yellow green

3: yellow

4: pink

5: red

6: purple



9 Leaf: undulation of margin


9: present, degree is weak

9: present, degree is strong

9: present, degree is medium

Note: when the undulation of the margin is present, make a remark to the degree of the undulation while

the undulation is very weak or very stong.



9 Leaf: undulation of margin



Scoreset: 1,9





Method: The absence or presence of the leaf margin undulation and the degree of the undulation of

were observed visually. As for leaf with margin undulation, a remark should be made.

Photo: The photos show the absence or presence of the leaf undulation with different undulating

degrees.


1: absent

9: present



10 Flower: type


1: single (flower)

2: double (flower)

2: double (flower), This flower has slightly more than 12 petals, so it is double.



10 Flower: type



Scoreset: 1,9






Method: Visually observe whether the flower is single or double. If more than 12 tepals are present, a

flower is called double.

Photo: The photos show some examples of single or double flowers. On the last photo 3 is a flower with

about 15 tepals, this is more than 12 tepals. So it is regarded as double tulip.


1: single

2: double



11 Flower: length


The arrows indicate where the length of the flower should be measured.



11 Flower: length


Type of observation: measurement

Measured in: mm's






Method: With a ruler , the length of the flowers is measured (in millimeters). Then the 10 measurements

averaged and converted into a class.

Photo: The photo is shown how the length of the flower is measured.


1: very short

2: very short to short

3: short

4: short to medium

5: medium

6: medium to long

7: long

8: long to very long

9: very long



12 Flower: shape


1: ellipsoid 2: ovoid 3: lily-flower



12 Flower: shape



Scoreset: 1,2,3



Observation: only single flower type varieties

Time: When the tulip is ripe. This is the stage that the pollen from the stamens begin to become come

loose. The tulips are evaluated in the closed position.

Method: Visually observe the shape of the flower in closed position.

Photo: The photos showed different shapes of the flower.


1: ellipsoid

2: ovoid

3: lily flower



13 Flower: main colour


white

orange

dark pink

light yellow

red

purple

yellow

dark purple red

purple

orange

pink

dark purple



13 Flower: main colour



Using: RHS Colour Chart






Method: Compare the color of the central part of the outer side of outer tepal with a RHS Colour Chart

and write down the RHS number, then add the RHS number in to UPOV colour group number.

Light conditions should fulfil one of the following criteria:

- Diffused light

- After a window with northern light

- Under artificial light (CIE standard daylight D 6500)

Try to avoid direct sunlight or any other situation with bright light other than mentioned above.

Photos: The photos showed how the main color is measured and the flowers with different colors.

The photo shows where the main color should be checked with the RHS Colour Chart. The photos on

the previous page, show some examples of different flower colors.



14 Flower: number of colours on outer side


1: one (colour)

1: one (colour)

The green sections on the

outer tepals are a kind of leaf

colour, and are not

considered to be a secondary

colour.

1: one (colour)

2: two (colours)

1: one (colour)

The colour at the base is not

observed as the main colour.

2: two (colours)

variegated

The colour is characterized by

the green colour on the tepals.



14 Flower: number of colours on outer side



Scoreset: 1,2,3






Method: Visually observe the number of colours on the outer side of the flower.

Photo: The photos display the flower with two colours. In photo above, middle, a pink tulip with a

difference in hue on the margin, this is scored as a single-colored flower. In photo above right, a red tulip

with a clear yellow base, this base colour is usually not considered as another colour.

As it is showed in photo left, lower row, sometimes it happens that the

outer tepals have irregular green parts, this green colour is not scored as a second colour. It is most

likely an interim phase between leaf and flower and probably due to the big size of the bulb or the higher

temperature. On the photo right, lower row, the green colour is scored as a second colour as it is a

variegation resulted from the genetic background.


1: one

2: two

3: three or more



15 Flower: distribution of secondary colour on outer side


1: on margin 2: marginal zone

photo left:

2: marginal zone

and flamed (3)

3: flamed



15 Flower: distribution of secondary colour on outer side



Scoreset: 1,2,3,4,5



Observation: only varieties with more than one colour on the outer side.



Method: Visually, the distribution of the secondary color on the outer side of the flower.

Photo: The photos show a number of possible positions of the secondary color. It is also possible that

the secondary color on lies on the marginal zone (or across the border) and is flamed, as shown in the

photo under left.


1: on margin

2: marginal zone

3: flamed

4: flushed

5: at base



16 Flower: secondary colour on outer side



Visual, using: RHS Colour Chart



Observation: only varieties with more than one colour on outer side



Method: Compare the secondary colour of the outer side of outer tepals with a RHS Colour Chart, write

down the RHS number, and add the UPOV colour group number.

Light conditions should fulfil one of the following criteria:

- Diffused light




Photo: -



17 Flower: fringe


1: absent

9: present

9: present

9: present

But very weak.



17 Flower: fringe



Scoreset: 1,9






Method: Visually observe whether the fringe of the tepals are present or not.

Photo: The photos are a few examples where fringe on the tepals absent or present.


1: absent

9: present



18 Flower: conspicuousness of fringe


1: weak

2: intermediate

1: weak

3: strong

2: intermediate

3: strong



18 Flower: conspicuousness of fringe



Scoreset: 1,2,3






Method: Visually observe the fringe on the tepal margin and make an assessment to the degree of

conspicuousness of the fringe.

Photo: The photos shows different degrees of the conspicuousness of the fringes on the tepal margin.


1: weak

2: intermediate

3: strong



19 Flower: position of fringe on tepals



Scoreset: 1,2,3






Method: Visually observe the position of fringe on the tepals.

Photo: -


1: top only

2: all over margin

3: irregular



20 Flower: shape of tip of outer tepals


1: acuminate

3: rounded

2: acute

4: emarginate



20 Flower: shape of tip of outer tepal



Scoreset; 1,2,3,4






Method: The shape of the tip of the outer tepals is visually observed.

Photo: The photos show the 4 different forms of the tepal tip.


1: acuminate

2: acute

3: rounded

4: emarginate



21 Flower: main colour of central part of outer side of inner tepal


Position were the main colour on the outer side of the inner tepal is determined, using the RHS Colour

Chart.



21 Flower: main colour of central part of outer side of inner tepal









Method: With the RHS Colour Chart, the colour of the center of the outer side of the inner tepals is

determined. It should be taken into account that a tepals be chosen, which still retains colour and not

during the flowering much light has captured so colour changes can occur.

Light conditions, under which the observations are made, should fulfil one of the following criteria:

- Diffused light




Photo: The photo shows the proper place for determining the colour of the inner tepals.



22 Flower: main colour of marginal part of outer side of inner tepal


Location were the main colour of the marginal part of the outer side of the inner tepal is determined,

using the RHS Colour Chart.



22 Flower: main colour of marginal part of outer side of inner tepal



Visual, using; RHS Colour Chart






Method: With the RHS colour chart, the colour of the marginal part of the outer side of the inner tepals is


during growth and flowering time much light is absorbed, making colour changes may occur.


- Diffused light




Photo: The photos show the correct position of the marginal colour on the outer side of the inner tepals.



23 Flower: main colour of central part of inner side of inner tepal









Method: With the RHS colour chart, the colour of the center of the inner side of the inner tepals is


during the flowering much light has captured so colour changes can occur.


- Diffused light




Photo: -



24 Flower: main colour of marginal part of inner side of inner tepal









Method: With the RHS colour chart, the colour of the marginal part of the inner side of the inner tepals is


during growth and flowering time much light is absorbed, making colour changes may occur.


- Diffused light




Photo: -



25 Flower: main colour of macule on inner side


Location were main colour of the macule on the

inside of the inner tepals is determined, using the

RHS Colour Chart

In this picture the macule is black

In this picture the macule is yellow.

In this picture there is no macule, so

'not applicable'



25 Flower: Main colour of macule on inner side









Method: With the RHS colour chart, the colour of the macule on inner side of the inner tepals is

determined.


- Diffused light




Photo: The observing position on the macule and the different color styles are showed in these photos.



26 Flower: different colour of border of macule


9: present

A different colour on the border of the macule is shown

as in the photo.

9: present

Different colour on the border of the macule

on the inside of the inner tepals is present.

In this case as a hue.

9: present

A different colour on the border of the macule is

present.

1: absent

A different colour on the border of the macule

on the inner tepals is absent.



26 Flower: different colour of border of macule



Scoreset: 1,9






Method: Visually observe whether there is a different color on the border of the macule or not.

Photo: The circled area in the photo above left, shows the exact location on the border on the inner side

of the inner tepals. If the border of the macule shows a different colour in the form of a hue, as shown in

the photo under left, it is sufficient to indicate the main colour. Accurate colour determination by the RHS

Colour Chart is not necessary.

It is also possible that the border of the macule is absent, as in the the photo under right. In such case,

the colour of the border of the macule is absent.


1: absent

9: present



27 Stamen: number of colours of filament


1: one (colour)

Filament is monochromatic.

1: one (colour)

Filament is not evenly colored

yellow, but still considered

monochromatic.

2: two (colours)

base is white, distal part blue

purple



27 Stamen: number of colours of filament



Scoreset: 1,2






Method: Visually, the number of colors of the filament is determined.

Photo: The photos are some examples of monochrome and two-colored stamens. The stamens on the

photo in the middle, are not evenly colored, but the difference is in tone, the base is light yellow and the

distal half yellow. In this case these stamen are classified as one colored (1).


1: one

2: two



28 Stamen: colour of basal half of filament


1: white 1: white 2: light yellow



28 Stamen: Colour of basal half of filament


Type of observation; visual

Scoreset: 1,2,3,4,5,6,7






Method: Visually, the colour of the basic half of the filaments is determined.

Photo: This photo shows some common colours of the basic half of the filament shown. Sometimes

there is also an addition to a main colour cast present at the base half. The colour of the cast group is

then placed in the comments.


1: white

2: light yellow

3: medium yellow

4: dark yellow

5: purple

6: blue

7: black



29 Stamen: colour of distal half of filament


1: white 3: medium yellow 5: purple

Note: tip is white



29 Stamen: colour of distal half of filament



Scoreset: 1,2,3,4,5,6,7






Method: Visually, the colours of the distal half of filaments is observed.

Photo: This photo shows some common colours of the distal half of the filament. Sometimes there is

also an additional colour besides a main colour on the distal half. The secondary colour is then written

down in the comments.

As it is shown in photo right, the distal half of filaments is purple, but the final top is white. This

phenomenon should be included in the comments.


1: white

2: light yellow

3: medium yellow

4: dark yellow

5: purple

6: blue

7: black



30 Stamen: colour of pollen


2: yellow 4: purple to black



30 Stamen: colour of pollen



Scoreset: 1,2,3,4






Method: Visually, the colour of the pollen specific. It is easier to see the pollen on a white background

and then tapping the pollen to observe the colour.

Photo: The photos show different colours of the pollen.


1: greenish

2: yellow

3: yellow and purple or black

4: purple or black



31 Plant: beginning of flowering (natural conditions)



Scoreset: 1 t/m 9






Method: Visually, By using the date on which most of the plants are in the mentioned stage.

Photo: -


1: very early

2: very early to early

3: early

4: early to medium

5: medium

6: medium to late

7: late

8: late to very late

9: very late



TQ-Characteristics

[Text Anthurium]

In paragraph 5 of the TQ, a number of grouping characteristics have to be filled in. These characteristics

are used to plan the trial in groups of identical varieties, and/or give important information about growing

the varieties.

For Tulipa, these are the characteristics:

5.1 Plant: classification:,

Botanical species 1

Modern hybrid 2

5.2 Botanical species only: Species

Tulipa Kaufmanniana Regel 1

Tulipa fosteriana W. Irving 2

Tulipa greigii Regel 3

Other species (please specify)4

Species of the Example Varieties

Species varietiesTulipa batalinii Regel Red HunterTulipa fosteriana W. Irving Copenhagen, Easter Moon, Madame Lefeber, Toulon, Yellow

PurissimaTulipa greigii Regel Ali Baba, Calypso, First Love, Grand PrestigeTulipa humilis Herb. LiliputTulipa kaufmanniana Regel Early Harvest, Love Song, ShowwinnerTulipa preastans Hoog. Unicum

5.3 Flower: type:, See for explanation and expressions characteristic 10:

single Apeldoorn 1

double Monte Carlo 2



5.4 (i) Flower: main colour:,See for explanation and expressions characteristic 13:

RHS Colour Chart (indicate reference number)

5.4 (ii) Flower: main colour group:, See for explanation and expressions characteristic 13:

white Snowparrot 1

off white 2

light yellow Yellow Purissima 3

medium yellow Yellow flight 4

dark yellow Lady Margot 5

orange Orange Monarch 6

orange red Temple of Beauty 7

medium red Lefeber's Memory 8

dark red Prominence 9

purple red Blenda 10

light pink Bright Pink Lady 11

medium pink Angélique 12

dark pink Pink Impression 13

medium purple Attila 14

dark purple Queen of Night 15

brown Cairo 16

other colour (indicate) 17



5.5 Flower: fringe:, See for explanation and expressions characteristic 17:

absent Apeldoorn 1

present Barbados, Fancy Frills 9

5.6 Flower: appearance of tepals:

convex or flat (Standard) Apeldoorn 1

Pointed and reflexed

(Lily flowered) Aladdin 2

laciniate, curled and twisted

(Parrot) Snowparrot 3

group 1: group 2: group 3:

convex pointed and reflexed laciniate, curled and twisted



5.7 Flower: partly greenish tepals:

absent Apeldoorn 1

present (Viridiflora) Virigold 2

absent present (Viridiflora)

5.8 Plant: beginning of flowering (natural conditions):, See for explanation and expressions

characteristic 31:

very early Love Song (T. kaufmanniana)

Showwinner, Early Harvest 1

early Bestseller, Apricot Beauty

Flair 3

medium Apeldoorn, Prinses Irene 5

late Temple of Beauty, Renown

Queen of Night 7

very late Dillenburg

Princess Margaret Rose 9



Notes

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Naktuinbouw calibration book tulip voorbeeld.pdf · Naktuinbouw calibration book tulip TP/115/3 ......

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