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Table 1 Qualitative and quantitative character states for pepper

From: Morphological characterization and yield of pepper (Piper nigrum L.) types grown in Morogoro District, Tanzania

S/N

Qualitative characters

States

S/N

Quantitative characters

States

Range

1

Lateral branching pattern

Erect

1

Leaf length (cm)

Short

 < 10

Horizontal

  

Medium

10–16

Hanging

  

Long

 > 16

2

Leaf lamina shape

Ovate

2

Leaf width (cm)

Narrow

 < 7

Ovate-lanceolate

  

Medium

7–10

Ovate-elliptic

  

Broad

 > 10

Cordate

3

Petiole length (cm)

Short

 < 2

3

Leaf base shape

Round

  

Medium

2–3

Cordate

  

Long

 > 3

Acute

4

Spike length (cm)

Short

 < 10

4

Leaf margin

Even

  

Medium

10–15

Wavy

  

Long

 > 15

5

Type of leaf veining

Acrodromous

5

Berry size (mm)

Small

 < 3.0

Campilodromous

  

Medium

3.0–4.26

Eucamptodromous

  

Bold/Large

 > 4.26

6

Spike orientation

Erect

6

No. of berries/spike

Few

 < 25

Prostate/Pendant

  

Medium

25–50

7

Spike shape

Filiform

  

Many

 > 50

Cylindrical

7

No. of flowers/spike

Globular

8

No. of spikes/100 leaves

Conical

9

No. of spikes at 1 m height from the ground

8

Spike setting

Loose

10

No. of spikes at 2 m height from the ground

Medium loose

11

Number of spikes/kg

Compact

12

Fresh weight of spikes/plant (kg)

9

Berry shape

Round

13

Fresh weight of berries/plant (kg)

Oval/Ovate

14

Individual weight of fresh spike (g)

Oblong

15

Percentage berry set or full size berries (%)

 

16

Intermediate-size berries (%)

 

17

Undeveloped berries (%)

 

18

Fresh weight of 100 spikes

 

19

Fresh weight of 1000 berries