International Journal of Horticulture, 2018, Vol.8, No.4, 29-35
32
Continued Table 1
Sl. No.
Characteristic
State
Note
Example Varieties/hybrids
Type of Assessment
7.
(*)
QL
Petal dominant
colour
green
1
VG
white
2
Walter Oumae White
yellow
3
Khaw Phiak Suan x V. Rasri Gold
pink
4
red
5
Chark Kuan Red
brown
6
purple
7
Happy Beauty
blue
8
violet
9
8.
*
PQ
Lip: apical lobe:
dominant colour
green
1
VG
white
2
Walter Oumae White
yellow
3
Khaw Phiak Suan x V. Rasri Gold
pink
4
red
5
brown
6
purple
7
Happy Beauty, Chark Kuan Red
blue
8
violet
9
9.
*
QL
Lip: colour of
throat
green
1
VG
white
2
yellow
3
Khaw Phiak Suan x V. Rasri Gold
pink
4
red
5
brown
6
purple
7
Happy Beauty, Chark Kuan Red
blue
8
violet
9
2 Results and Discussion
In the present study, all total 61 common descriptors were developed for development of DUS test guidelines in
Mokara
and those are plant width (cm), internode length (cm), leaf type, leaf attitude (Figure 1), leaf length (cm),
leaf width(cm), leaf emarginated tip, leaf folding, inflorescence length (cm), number of flowers/inflorescence,
inflorescence branching, inflorescence orientation, peduncle length (cm), pedicel length (cm), flower length (cm),
flower width(cm), flower fragrance, dorsal sepal length (cm), dorsal sepal width (cm), dorsal sepal shape (Figure
2), dorsal sepal curvature of longitudinal axis, dorsal sepal apex, dorsal sepal colour pattern, dorsal sepal dominant
colour, curvature of lateral sepal, length of lateral sepal (cm), width of lateral sepal (cm), shape of lateral sepal,
apex of lateral sepal, colour pattern of lateral sepal, lateral sepal dominant colour, petal shape, petal length (cm)
(Figure 3), petal width (cm), petal curvature of longitudinal axis (Figure 4), petal apex, petal number of colours,
petal colour pattern, petal dominant colour, lip length of apical lobe (cm), lip width of apical lobe (cm), lip
lobbing of apical lobe apex (Figure 5), protrusion of ventral side of apical lobe of lip, dominant colour of apical
lobe of lip, colour pattern of apical lobe of lip, no. of colours of apical lobe of lip, length of lateral lobe of lip (cm),
width of lateral lobe of lip (cm), colour pattern of lateral lip lobe, dominant colour of lateral lip lobe, No. of
colours of lateral lobe of lip, colour of throat of lip, keel nos., column length (cm), column width (cm), column
dominant colour, column colour pattern, no of colours of column, spur type and spur length.
Out of 61 common descriptors developed, plant width, number of flowers/inflorescence, size, flower length,
flower width, dorsal sepal dominant colour, lateral sepal dominant colour, petal dominant colour, dominant colour
of apical lip lobe and throat colour of lip were used for grouping of genotypes.
