|
INDIA |
|
ITG/18 |
|
Date: 24-1-2004 |
|
National Guide Lines |
|
for the conduct of test for |
|
Distinctness, Uniformity and Stability |
|
Chickpea |
|
(Cicer
arietinum L.) |
|
Contents |
|
I. Subject |
|
III. Conduct of tests |
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These
test guidelines apply to all varieties of Chickpea (Cicer
arietinum L.)
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The Plant
Variety Protection (PVP) Authority decides when, where and in what quantity and
quality the plant material required for testing the variety is to be delivered.
Applicants submitting material from a country other than India must make
sure that all customs formalities are complied with.
The minimum quantity of seed to be supplied by the applicant should be: 2000 grams (in
one submission only)
The seed
should meet the minimum requirements for germination capacity, moisture content
and physical purity prescribed for certified seed in India. Especially for
storage, which requires a higher standard, the applicant should state, the
actual germination capacity which should be as high as possible. The seed
supplied should be visibly healthy, not lacking in vigour or affected by any
important pest or disease.
The plant material must not have undergone any treatment unless the competent authorities allow or request such treatment. If it has been treated, full details of the treatment must be given.
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The
minimum duration of tests should normally be two independent similar growing
seasons with reference to the ecosystem of the variety submitted for DUS test.
The test
should normally be conducted at two test locations. If any important
characteristic of the variety can not be seen at these places, the variety may
be tested at an additional place.
The test
should be carried out under conditions ensuring normal growth.
The size of the plot should be such that plants or parts of plant may be
removed for measuring and counting without prejudice to the observation which
must be made upto the end of the growing period. Each test should include a
minimum of 450 plants which should be divided among 3 replications. Separate
plots for observation and for measuring can only be used if they have been
subjected to similar environmental conditions.
Test plot design
| No. of rows | : 6 |
| Row length | : 5 m |
| Row to row distance | : 45 cm |
| Plant to plant distance | : 20 cm |
| Number of replications | : 3 |
Observations should not be recorded on plants in border rows.
Additional tests for special purpose may be established.
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The
characteristics described in the Table of characteristics should be used for the
testing of varieties for DUS .
For the assessment of
distinctness and stability, observations should be made on 30 plants or parts of 30 plants which should be divided among 3 replications (10 plants in each
replication).
For the assessment of uniformity of characteristics on the plot as a
whole (visual assessment by a single observation of a group of plants or parts
of plants), a population standard of 1% with an acceptance probability of at
least 95% should be applied. In the case of a sample size of 100 plants, the
number of off-types should not exceed 3.
For the assessment of colour characteristics, it is recommended
that Royal Horticultural Society (RHS) colour chart should be used.
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The
collection of varieties to be grown should be divided into groups to facilitate
the assessment of distinctness. Characteristics, which are suitable for grouping
purposes, are those, which are known from experience not to vary, or to vary
only slightly, within a variety. Their various states of expression should be
fairly evenly distributed throughout the collection.
It is
recommended that the competent authorities use the following characteristics for
grouping varieties:
i.
Time of flowering (characteristic 3)
ii.
Seed: colour (characteristic 13 )
iii. Seed : size (characteristic 14 )
iv.
Seed: type (characteristic 18 )
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VI.
Characteristics and symbols
To assess
distinctness, uniformity and stability, the characteristics and their states as
given in the Table of characteristics should be used.
Notes (1
to 9), for the purposes of electronic data processing, are given opposite the
states of each characteristic.
Legend :
(*)
Characteristics that should be used
every growing period for the examinations of all varieties and should always be
included in the description of the variety, except when the state of expression
of a preceding characteristic or regional environmental conditions render this
impossible.
(+)
See explanations on the Table of characteristics in Chapter VII.
The
optimum stage of plant growth for assessment of each characteristic is indicated
in the sixth column of Table of characteristics.
Type of
assessment of characteristics indicated in column seven of Table of
characteristics is as follows :
MG
: Measurement by a single observation of a group of plants or parts of plants
MS
: Measurement of a number of individual plants or parts of plants
VG
: Visual assessment by a single observation of a group of plants or parts of
plants
VS
: Visual assessment by observation of individual plants or parts of plants
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|
S.No |
Characteristics |
States |
Note |
Example Varieties |
Stage of
observation |
Type of
assessment |
|
1. |
Stem: anthocyanin colouration |
absent |
1 |
|
before flowering |
VS |
|
2. |
Stem: height of insertion of first flower |
low(<8 nodes) |
3 |
|
insertion of first flower |
MS |
|
3. |
Time of flowering (50% of the plants with at least
one open flower) |
early (<60 days) |
3 |
|
|
VG |
|
4. |
Plant: number of flowers per peduncle |
single |
1 |
|
50% flowering |
VS |
|
5. |
Plant: growth habit |
erect(0-150 from vertical) |
3 5 7 |
|
flowering |
VG |
|
6. |
Plant: green color intensity of foliage |
light |
3 |
|
flowering |
VG |
|
7. (*) |
Leaflet : size (middle of the plant and middle of the leaf) |
small(<10mm long) |
3 7 |
|
flowering |
MS |
|
8. |
Flower: colour |
white |
1 |
|
flowering |
VG |
|
9. |
Flower : stripes on standard |
absent |
1 |
|
flowering |
VG |
|
10. |
Peduncle: length |
short |
3 |
|
pod development |
MS |
|
11 (*) |
Plant : height |
short(<45 cm) |
3 |
|
fully developed green pod |
MS |
|
12. (*) |
Pod: size |
small(<15 mm long) |
3 |
|
harvest
maturity |
MS |
|
13. (*) |
Seed: colour |
beige(kabuli) |
1 |
|
one month of harvest |
VG |
|
14. (*) |
Seed : size(weight of 100 seeds at 10% moisture content) |
desi
types |
3 |
|
one month of harvest |
MG |
|
15. |
Seed: shape |
pea-shaped |
1 |
|
one month of harvest |
VG |
|
16. (*) (+) |
Seed: testa texture |
rough |
1 |
|
one month of harvest |
VG |
|
17. |
Seed : ribbing |
absent |
1 |
|
one month of harvest |
VG |
|
18 |
Seed: type |
desi |
1 |
|
one month of harvest |
VG |
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VIII.
Explanations
on the table of characteristics
Characteristic
5. Plant : growth habit
![]() |
||
| 3.erect | 5.semi erect | 7.spreading |
Characteristic
15. Seed : shape
![]() |
![]() |
![]() |
| 1.pea shaped | 2.owl’s head | 3.angular |
Characteristic
16. Seed : testa texture
![]() |
![]() |
|
|
rough |
smooth |
tuberculated |
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|
Reference Number |
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Technical questionnaire
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| 1.
Species:
(Cicer arietinum L.) Chickpea
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| 2.
Applicant (Name and address)
:
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| 3. Proposed
denomination or breeder's reference
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4.
Information on origin, maintenance and reproduction of the variety 4.1 Generic origin and breeding methods
4.2
Other informations
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5.
Characteristics of the variety to be indicated (the number in brackets
refers to the corresponding characteristic in Test Guidelines; please mark
the state of expression which best corresponds). |
|||||||
| S.No. | Characteristics | States | Example varieties | Notes | |||
|
1 |
Time of flowering (50% of the plants with at least one open flower) |
early (<60 days) |
3 [ ] |
||||
|
2 |
Seed: Color |
beige
(kabuli) |
1 [ ] |
||||
|
3 (14) |
Seed : size(weight of 100 seeds at 10% moisture content) |
desi
types small(<15g) kabuli
types small(<25g) |
3[
]
3[ ] |
||||
|
4. (18) |
Seed: Type |
Desi Kabuli |
1[
] |
||||
| 6.
Similar varieties and differences from these varieties |
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|
Denomination of |
Characteristic in |
State of expression of similar Variety |
State of expression of candidate variety | ||||
| 0)
In
the case of identical states of expressions of both varieties, please
indicate the size of the difference. |
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|
7.
Additional information which may help to distinguish the variety
7.2 Special conditions for the examination of the variety
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8.
Authorization for release (a)
Does
the variety require prior authorization for release under legislation
concerning the protection of the environment, human and animal health?
Yes
{ }
No
{
} (b)
Has
such authorization been obtained? Yes { } No { }
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[End of the document]
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