描述符列表详细信息

Kenya genebank characterization descriptors for maize

1.0

Characterization descriptors for maize used at the Genetic Resources Research Institute (GeRRI) - Kenya. These descriptors are based on IBPGR descriptors for maize (1991).

作物
Maize
发布者
Genetic Resources Research Institute
版本
1.0

Visual measurement recorded three weeks after emergence of the seedling.

分类
特征描述符
数据类型
已编码
代码术语说明
1Very strong
2Strong
3Average
4Weak
5Very weak

Number of days from planting to when 50% of the plants have extended silk.

分类
特征描述符
数据类型
数字

Midrib colour of the third leaf counted from flag leaf downwards taken during or shortly after flowering.

分类
特征描述符
数据类型
已编码
代码术语说明
WWhite
DDull Green
YYellow
BBrown
GGreen
PPurple

Mean height of 10 random plants, measured from the ground level to the tip of the head taken after flowering and before ripening.

分类
特征描述符
数据类型
数字
测量单位
cm

Mean height of 10 random plant ears from the ground level to the node bearing the upper ear.

分类
特征描述符
数据类型
数字
测量单位
cm

Absence or prescence of pigments on leaf and stalk taken at seed filling stage.

分类
特征描述符
数据类型
已编码
代码术语说明
PPigment
TTan

Average number of basal tillers (without counting the stem)at maturity of 10 randomly selected plants.

分类
特征描述符
数据类型
数字

Susceptibility to lodging. Scored before harvesting in a scale similar to percentages.

分类
特征描述符
数据类型
度量
1
2
3
4
5
6
7
8
9

Legend:

1
Very few lodged
5
Almost 50% lodged
9
Nearly all lodged

Number of days from sowing to 90% of plants reaching physiological maturity.

分类
特征描述符
数据类型
数字

Average of 10 randomly selected plants from the middle of the plot.

分类
特征描述符
数据类型
数字

Consider phenotypic appearance.

分类
特征描述符
数据类型
已编码
代码术语说明
1No
2Yes

Number of ears randomly harvested and characterized in the lab.

分类
特征描述符
数据类型
数字

Mean length of 10 random ears from the point of attachment on the ear peducle to the tip of the dehusked ear.

分类
特征描述符
数据类型
数字
测量单位
cm

Number of rows of kernel on 10 randomly selected ears.

分类
特征描述符
数据类型
数字

Kernel type.

分类
特征描述符
数据类型
已编码
代码术语说明
AMFloury
SASemi floury
ATSemi dent
SFSemi flint
FTFlint
PPPop
SWSweet
OPOpaque

Three colours observed in order of frequency.

分类
特征描述符
数据类型
已编码
代码术语说明
1White
2Yellow
3Purple
4Variegated
5Brown
6Orange
7Mottled
8White cap
9Red

Visual measurement whether the kernel colours are the same or not.

分类
特征描述符
数据类型
已编码
代码术语说明
1Uniform
2Not uniform

Visual measurement of the endosperm colour.

分类
特征描述符
数据类型
已编码
代码术语说明
1White
2Cream
3Pale yellow
4Yellow
5Orange
6White cap

Visual measurement looking at longitudinal cut seed.

分类
特征描述符
数据类型
已编码
代码术语说明
1Comp. corneous
2Almost corneous
3Partly corneous
4Almost starchy
5Comp. starchy

Weight of one thousand seeds adjusted to 10% moisture content.

分类
特征描述符
数据类型
数字
测量单位
gr