Quantitative Traits

Code

Description

Sprout count

SPC

Number of primary/mother shoot emerged from planted bud

Tiller count

TC

Number of secondary, tertiary, etc shoots emerged from primary shoots

Leaf length (cm)

LL

Length of the third leaf from the flag leaf

Leaf width (cm)

LW

Width of the third leaf from the flag leaf

Leaf area (cm2)

LA

Area of the third leaf from the flag leaf, computed as (leaf length × leaf width × 0.747) suggested by Stickler et al. (1961)

Stalk count 10 month after planting

STC10MAP

The number of millable stalks 10 month after planting

HRBrix percent 10 month after planting

HRBrix10MAP

Hand rifractometer brix reading 10 month after planting

Number of millable canes (count)/plot

MSCPL

stalks with four or more visible internodes at 10 months or after

Number of millable canes (count)/hectare

MSCHA

Number of millable cane produced per hectare calculated from millable stalk count per plot

Stalk thickness/diameter (cm)

SD

Width of stalk at mid internode

Stalk height/Cane length/ (cm)

SH

Height of a sugarcane plant measured from ground level to the top visible dewelap.

Number of internodes (count)

NI

Count of total internodes per plant

Internode length (cm)

IL

Length of the third internode counted from the ground surface

Cane yield per plot (Kg)

CYPL

Weight of cane harvested from an experiment plot

Cane yield per hectare (qt/ha)

CYHA

The weight of millable sugarcane produced per hectare of land or calculated from cane yield per plot

Single cane weight (kg)

SCW

Weight of cane harvested from an experiment plot divided by the number of millable cane per plot

Brix percent

Brix%

Juice Brix refers to the total solids content present in the juice expressed in percentage. Brix includes sugars as well as non-sugars as indicated by a brix hydrometer.

Pol percent/ Juice Sucrose percent

Pol%

The juice sucrose per cent is the actual cane sugar present in the juice determined by reading on the scale of polarimeter.

Purity percent

Purity%

The ratio of pol to brix. Pty = Pol/ Bx × 100

Sugar percent

SR%

Amount of sugar recovered from the cane. Obtained by the formula: = ((pol% − (brix% − pol%) * 0.7)) * 0.75 as described in Winter Carp indirect method of cane juice analysis [11] .

Sugar yield per hectare (qt/ha)

SY

Amount of crystal sugar produced per hectare of land. Obtained by multiplying cane yield per hectare with sugar percent