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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