Table 5 Variance analysis of the investigated parameters.

From: Stimulating growth, root quality, and yield of carrots cultivated under full and limited irrigation levels by humic and potassium applications

Source of variation

df

PH

LFW

NL

RY

RW

RD

RL

Gross water requirements levels (GWR)

1

*

*

*

*

NS

NS

*

Humic applications (H)

2

*

*

*

*

*

*

*

Potassium applications (K)

2

*

*

*

*

*

*

*

GWR × H

2

NS

*

*

*

*

NS

NS

GWR × K

2

NS

*

*

*

NS

NS

NS

H × K

4

*

*

NS

*

*

*

*

GWR × H × K

24

*

*

*

*

*

*

*

  

CA

CHL

TS

CAR

N

P

K

Gross water requirements levels (GWR)

1

*

*

*

*

*

*

*

Humic applications (H)

2

*

*

NS

*

*

*

*

Potassium applications (K)

2

*

*

*

*

*

*

*

GWR × H

2

NS

*

*

NS

*

*

NS

GWR × K

2

*

NS

NS

*

*

*

*

H × K

4

*

*

*

NS

*

*

*

GWR × H × K

24

*

*

*

*

*

*

*

  

Ca

Na

Ca/Na

K/Na

TDS

OM

AKS

Gross water requirements levels (GWR)

1

*

*

NS

NS

*

NS

NS

Humic applications (H)

2

*

*

*

*

*

*

*

Potassium applications (K)

2

*

*

*

*

*

*

*

GWR × H

2

NS

*

*

*

*

*

*

GWR × K

2

NS

NS

NS

NS

*

NS

*

H × K

4

*

*

*

*

*

NS

*

GWR × H × K

24

*

*

*

*

*

*

*

  1. PH: plant height; LFW: leaves fresh weight; NL: number of leaves; RY: root yield; RW: roots weight; RD: root diameter; RL: root length; CA: carbohydrates; CHL: total chlorophyll; TS: total sugar; CAR: carotenoids; N: nitrogen; P: phosphorus; K: potassium; Ca: calcium; Na: sodium; TDS: total dissolved solids; OM: organic matter; AKS: available potassium in soil; NS: non-significance; * significance at P ≤ 0.05.
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