Number of days from sowing to when 50% of the plants have shed pollen

Number of days from sowing to when silks have emerged on 50% of the plants

From ligule to apex. Measure the leaf which subtends the uppermost ear. After flowering

Mid-way along its length. Measured on the same leaf as 6.1.2

After milk stage (see Fig. 1)

After milk stage (see Fig. 1)

Distance between the first and last primary branches. After milk stage (see Fig. 1)

After milk stage (see Fig. 1)

After milk stage (see Fig. 1)

Number of days from sowing to when 50% of the plants have a dry ear leaf

From ground level to the base of the tassel. After milk stage

From ground level to the node bearing the uppermost ear. After milk stage

Number of tillers per plant (average of more than 20 representative plants). At flowering

Counted on at least 20 representative plants. After milk stage

Percentage of plants root-lodged. Two weeks before harvest

Percentage of plants stalk-lodged. Two weeks before harvest

Count number of kernel rows in the central part of the uppermost ear

Measured at the central part of the uppermost ear

Average of 10 consecutive kernels from one row in the middle of the uppermost ear, measured with calliper

Measured on the same 10 kernels as 6.3.1

Measured on the same 10 kernels as 6.3.1