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Table 5 Relationships between frequencies of the character states for each population and altitude (Spearman's rho).

From: Adaptation and diversity along an altitudinal gradient in Ethiopian barley (Hordeum vulgare L.) landraces revealed by molecular analysis

Character

Character state1

Spearman's ρ

R2

P

Kernel row number

Irregular

0.31

0.10

0.001

 

Six rowed

-0.17

0.03

0.09

Spike density

Lax

0.02

0.00

0.81

 

Intermediate

0.37

0.14

0.0001

 

Dense

-0.48

0.23

1.6e -07

Lemma awn barb

Intermediate

0.35

0.12

0.0002

 

Rough

-0.34

0.11

0.0004

Glume colour

White

-0.54

0.29

3.3e -09

 

Brown

0.62

0.38

2.0e -12

Lemma type

No lemma teeth

0.24

0.06

0.01

 

Lemma teeth

-0.24

0.06

0.01

Length of rachilla hair

Short

0.51

0.27

1.6e -08

 

Long

-0.51

0.27

1.6e -08

Kernel colour

White

-0.53

0.28

6.3e -09

 

Tan/red

0.39

0.16

2.5e -05

 

Purple

0.15

0.02

0.13

 

Black/grey

0.39

0.15

4.2e -05

  1. Morphological data from Tanto Hadado et al. [16].
  2. 1 Character states with frequencies lower than 0.05 and higher than 0.95 are not included in the analysis.