Is Cut-Flower Industry Promotion by the Government Negatively Affecting Pollinator Biodiversity and Environmental/Human Health in Uganda?
Table 9
Farmers’ perception of the importance and value of pollinating services delivered by bees to their crops.
Crop categories
Crops reported
Yield parameters
YNFBV (Mean ± SD)
YHBV (Mean ± SD)
A = Fruit/Seed set (%)
B = Fruit set (%) Experimental data (2007)
Statistics for difference in fruit set between A and B
Fruits
Avocado
Nbr fruits/branch
57.45
82.67
4.53931
0.033
Pulses
Beans
Nbr pods/plant
77.95
27.11
24.6022
<0.001
Fruits
Citrus-lemon
Nbr fruits/branch
83.43
24.65
31.9679
<0.001
Fruits
Citrus-orange
Nbr fruits/branch
70.47
32.23
14.2385
<0.001
Industrial
Coffea arabica
Nbr berry-fruits/branch
59.26
62.12
0.067389
0.795
Industrial
Coffee robusta
Nbr bags of coffee beans/ha
51.75
68.71
2.387869
0.122
Industrial
Coffee robusta
Nbr berry-fruits/branch
53.86
78.32
4.52634
0.033
Pulses
Cowpea
Nbr pods/plant
74.51
45.43
7.05058
0.008
Vegetables
Egg plant
Nbr fruits/plant
59.73
41.65
3.22437
0.073
Pulses
Groundnut
Nbr pods/plant
72.85
68.55
0.130764
0.718
Fruits
Mangos
Nbr sacs of 100 Kg/tree
33.21
83.87
21.9204
<0.001
Fruits
Mangos
Nbr Kg fruits/branch
60.05
29.34
10.5504
<0.001
Fruits
Papaya
Nbr fruits/plant
69.81
31.55
14.4419
<0.001
Fruits
Passion fruit
Nbr fruits/plant
22.10
78.98
32.0077
<0.001
Pulses
Pigeonpeas
Nbr pods/branch
66.28
65.72
0.002376
0.961
Pulses
Peas
Nbr pods/plant
72.21
65.41
0.335998
0.562
Vegetables
Pepper
Nbr fruits/branch
67.87
19.89
26.2315
<0.001
Fruits
“Prune”
Nbr fruits/branch
100.0
76.54
3.11755
0.077
Fruits
Pumpkin
Nbr fruits/plant
100.0
82.21
1.73692
0.188
Pulses
Simsim
Nbr pods/plant
84.1
71.67
0.991878
0.319
Industrial
Sunflower
Nbr seeds/head
69.47
69.77
0.000646
0.98
Vegetables
Tomato
Nbr fruits/plant
43.06
37.54
0.378045
0.539
Fruits
Watermelon
Nbr fruits/plant
100.0
79.43
2.35816
0.125
Fruits
Apple
Nbr fruits/branch
100.0
78.45
2.60242
0.107
Legend: YNFBV: When no/few; YNFBV: yields when very few or no bees visit my crop flowers (bad yield). YHBV: When I receive high bee-visits to crops; YHBV: yields if bees came with high visitation frequency to flowers of my crop. A: (Fruit/seed set in %) = (mean YHBV − mean YNFBV)/mean YHBV * 100. B: (Fruit/seed set in %); this is data obtained after conducting pollination experiments.