描述符列表详细信息

Descriptors for wheat (Revised)

1985
作物
Wheat
发布者
IBPGR
文献引文

CEC, IBPGR. (1985). Descriptors for wheat (Revised). International Board for Plant Genetic Resources, Rome; Programme Committee on Disease Resistance Breeding and Use of Gene Banks, Brussels, Belgium.

版本
1985
分类
特征描述符
数据类型
已编码
代码术语说明
1Winter
2FacultativeIntermediate
3Spring

Height of plant at maturity, measured from ground to the top of the spike. excluding awns

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特征描述符
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自由文本

Counted as days from sowing to 50% of plants in flower. However, when planting in dry soils, in drland areas, it is counted from the first day of rainfall or irrigation which is sufficient for germination

分类
特征描述符
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自由文本

See Figure 1, a visual measure of the density of a spike, measured on 1-9 scale. (spike density is not the same as spike shape)

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度量
0
1
2
3
4
5
6
7
8
9

Legend:

1
Very lax
3
Lax
5
Intermediate
7
Dense
9
Very dense
分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

0
Awnless
3
Awnletted Short awns
7
Awned Conspicuous

observed on the outer glume

分类
特征描述符
数据类型
已编码
代码术语说明
1White
2Red to brown
3Purple to black

Measured on the outer side of sterile glume

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

0
Absent
3
Low
7
High

The average number of spikelets per spike from five typical spikes selected from the growing accession.

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特征描述符
数据类型
数字

The average number of seeds per spikelet, obtained from the central portion of the spike - using the five typical spikes coded in 4.2.6

分类
特征描述符
数据类型
数字

If the is difficult to decide then the sodium hydroxide test can be used. Place grains in the petri-dish and add 25 ml of 5% solution NaOH for 60-90 minutes. Original red grains will be dark brownish orange. and white grains will be straw yellow.

分类
特征描述符
数据类型
已编码
代码术语说明
1White
2Red
3Purple

See Figure 2.

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Small
5
Intermediate
7
Large
9
Very large Only applies to some turgdim types

Glass-like appearance. When seeds are transversely sectioned

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Not Vitreous
5
Partly vitreous
7
Vitreous

Appearance during tillering, but before jointing

分类
特征描述符
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度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Upright
7
Prostrate

Subjective assessment of the tillers number per plant at low densities

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Low
7
High

Extent to which long days hasten flowering

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

0
Insensitive
3
Low
7
High

Tendency of grains to sprout in the ear as a result of high moisture near to the harvest, recorded on 1-9 scale

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Low sprouting
7
High sprouting

Appearance of dry seeds after harvest

分类
特征描述符
数据类型
度量
0
1
2
3
4
5
6
7
8
9

Legend:

3
Plump
5
Intermediate
7
Shrivelled

Measured as percentage of dry weight, (seed moisture equal to or less than 12%). Indicate the conversion factor used either N x 6.25 or N x 5.6

分类
特征描述符
数据类型
数字
测量单位
%

Percentage of lysine per per unit protein (absolute)

分类
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自由文本

Performance in tests for making the the products listed below: (bread, pasta, biscuits)

分类
特征描述符
数据类型
已编码
代码术语说明
1Good
2Poor