SN

Trait/descriptor

Trait/descriptor

Score code-descriptor state

Sample/time collected

1

Plant height (cm)

PHT

direct measurement: done using meter rule

on 5 plants at 8 WAP

2

Stem girth (mm)

SG

direct measurement: done using vernier caliper

on 5 plants at 8 WAP

3

Ear height (cm)

EHT

direct measurement: done using meter rule

on 5 plants at 3 MAP

4

Anthesis silking time

ASI

direct measurement

at silking (3 - 4 MAP)

5

Grain yield (t∙ha⁻¹)

GYLD

direct measurement

at harvest (4 MAP)

6

Cob diameter (mm)

CD

direct measurement: done using vernier caliper

at harvest (4 MAP)

7

Number of kernels per cob

NKC

direct measurement: done by counting

at harvest (4 MAP)

8

Number of kernel rows

NKR

direct measurement: done by counting

at harvest (4 MAP)

9

Number of kernels per row

NKPR

direct measurement: done by counting

at harvest (4 MAP)

10

Ear diameter (mm)

EARD

direct measurement: done using vernier caliper

at harvest (4 MAP)

11

Ear length (cm)

EARL

direct measurement: done using meter rule

at harvest (4 MAP)