II

II. CHARACTERIZATION and EVALUATION DESCRIPTORS

Descriptor code (IPGRI descr. no.)

Descriptor
	Scale (score)	Explanation

Reference values*

Reduced scoring (alternative) D1-D3

Descriptor
	Reduced scale	Reduced scale explanation	Reduced scale - description

*Reference values are given for orientation only; comparison to standard cultivar necessary.

Note: Utilisation of reduced scoring should be mentioned in the comment to characterization

II/1

D1 Awnedness

D1 Awnedness

(IPGRI 4.2.3)

1	awnless to very short awnlettes on upper part of spike	< 10 mm
3	awnletted	10 - 40 mm
5	intermediate (long awnlettes/short awns on upper part of spike)	41 - 60 mm
7	awned (whole spike)	< = length of spike
9	long awned (whole spike)	> length of spike

1	awnless	completely awnless to very short awnlettes on upper part of spike

5	intermediate	short awns/ long awnlettes on upper part of spike
	...
9	awned	long awns on whole spike

II/2

D2 Grain colour (colour of mature caryopsis)

D2 Grain colour

(IPGRI 4.3.1)

	1	white yellow
	2	amber yellow
	3	light brown/light red
	4	brown/red
	5	dark brown/dark red
	6	purple
	7	other

1	white	white to yellow
	...
	...
4	red	light red to dark red/light brown to dark brown
	....
6	purple
7	other

II/3

D3 Glume colour (observed on the outer glume)

D3 Glume colour

(IPGRI 4.2.4)

	1	white yellow
	2	brown/red
	3	grey
	4	black
	5	other

1	white	white to yellow
2	red/brown
	....
4	black	black, purple, dark grey
5	other

II/4

D4 Glume hairiness (observed on outer side of sterile glume)

(IPGRI 4.2.5)

	0	absent
	3	sparse
	5	intermediate
	7	dense

II/5

D5 Spike density (the average number of spikelets per 10 cm length of spike)

(IPGRI 4.2.2)

1	very low/very sparse	< 16.0
3	low/sparse	16.0 - 25.0
5	intermediate	25.1 - 30.0
7	high/dense	30.1 - 40.0
9	very high/compact	> 40.0

II/6

D6 Plant height [cm] (measured at maturity from ground to top of spike, excluding awns)

(IPGRI 4.1.2)

1	dwarf	< 35 cm
2	dwarf to short	35 - 50 cm
3	short	51 - 65 cm
4	short to intermediate	66 - 80 cm
5	intermediate	81 - 95 cm
6	intermediate to high	96 - 110 cm
7	high	111 - 125 cm
8	high to very high	126 - 140 cm
9	very high	> 140 cm
X	variable expression

II/7

D7 1000-kernel weight [ g]

1	very low	< 27 g
3	low	27 - 36 g
5	intermediate	36.1 - 45 g
7	high	45.1 - 54 g
9	very high	> 54 g

II/8

D8 Protein content [%DW]

(IPGRI 6.3.3)

1	very low	< 9.0%
2	very low to low	9.0 - 10.2 %
3	low	10.3 - 11.4%
4	low to intermediate	11.5 - 12.6%
5	intermediate	12.7 - 13.8%
6	intermediate to high	13.9 - 15.0%
7	high	15.1 - 16.2%
8	high to very high	16.3 - 18.0%
9	very high	> 18.0%

II/9

D9 Principal utilization

(IPGRI 6.3.5)

	1	baker�s product
	2	special pasta (macaroni)
	3	feed product
	4	baker�s and feed product
	5	technical purposes
	6	other

II/10

D10 Yield level

	1	very low
	3	low
	5	intermediate
	7	high
	9	very high

II/11

D11 Lodging intensity

(IPGRI 7.9)

	1	very low
	3	low
	5	intermediate
	7	high
	9	very high

II/12

D12 Susceptibility to stem rust (Puccinia graminis f. sp. tritici)

(IPGRI 8.2.2)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/13

D13 Susceptibility to stripe rust (Puccinia striiformis f. sp. tritici)

(IPGRI 8.2.1)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/14

D14 Susceptibility to leaf rust (Puccinia triticina)

(IPGRI 8.2.3)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/15

Susceptibility to powdery mildew (Blumeria graminis f. sp. tritici) (syn. Erysiphe graminis f. sp. tritici)

(IPGRI 8.2.4)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/16

Susceptibility to Septoria tritici leaf blotch
(Mycosphaerella graminicola)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/17

Susceptibility to Stagonospora nodorum glume blotch
(syn. Phaeosphaeria nodorum, Septoria nodorum)

(IPGRI 8.2.5)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/18

Susceptibility to head blight (Fusarium spp.)

(IPGRI 8.2.7)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/19

Susceptibility to eyespot Olimacula spp. (syn. Tapesia spp., syn. Pseudocercosporella spp.)

(IPGRI 8.2.6)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/20

Susceptibility to take-all (Gaeumannomyces graminis var. tritici) (syn. Ophiobolus graminis var. tritici)

(IPGRI 8.2.8)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

II/21

Susceptibility to tan spot (Pyrenophora tritici-repentis) (syn. Helminthosporium tritici-repentis)

	1	very low (no visible sign of susceptibility)
	3	low
	5	intermediate
	7	high
	9	very high
	X	variable expression

Note:

    Descriptors II/D1 - II/D6 preferred set of characterisation data (recommendation of the Wheat Working Group Meeting, Prague, 2001)
    Basic set of characterization/evaluation descriptors: II/D1 - II/D21 (agreed by the Wheat Working Group Meeting, La Rochelle, 2005)
    Additional descriptors to be added.

IPGRI descr. no - Numbers of descriptors from IPGRI publication Descriptors for Wheat (Revised), Rome 1985