Table 5  Comparative analysis showing the effects of enhanced pollination (bee-assisted) versus natural pollination on fava bean production parameters and economic returns. Data represents mean values for 25 plant units under semi-arid conditions.

From: Pollination by honeybee increases yield and quality of faba bean (Vicia faba L.) in semi-arid regions of Egypt

Production parameter

Unit

Treatment condition

Improvement

Economic value

Control (natural pollination)

Enhanced pollination (bee-assisted)

Absolute difference

Relative increase (%)

EGP (per 25 plants)

USD (per 25 plants)

Yield components

 Total yield

kg/25 plants

0.625

1.250

 + 0.625

 + 100.0

21.88

0.44

 Pod number

pods/plant

2.5

4.9

 + 2.4

 + 97.9

 Flower-to-pod conversion

%

15.0

28.0

 + 13.0

 + 86.7

 Seed weight

g/seed

0.74

1.00

 + 0.26

 + 35.4

 Seed length

mm

7.2

9.2

 + 2.0

 + 27.8

Economic parameters

 Market price

EGP/kg

35.0

35.0

0

0

35.0

0.70

 Gross revenue

EGP/25 plants

21.88

43.75

 + 21.88

 + 100.0

21.88

0.44

 Pollination cost

EGP/25 plants

0

0.79

 + 0.79

0.79

0.016

 Net additional profit

EGP/25 plants

0

21.09

 + 21.09

21.09

0.42

  1. *Exchange rate: 1 USD = 50 EGP. Enhanced pollination treatment included deployment of 2–3 bee hives per hectare during flowering period. Statistical significance tested at P ≤ 0.05 level.