Table 7.
Plant species | Max. average nectar TSS (mg)/flower | No. of flowers/m3 or per plant | Nectar TSS (mg)/m3 | Crown volume in m3 | Nectar TSS (kg) plant | Estimated plants/hectare | Expected nectar TSS (kg)/hectare | Expected honey yield (kg)/hectare |
---|---|---|---|---|---|---|---|---|
Acacia asak | 5.0 | 1954 | 9770 | 20.0 | 0.20 | 462 | 91 | 110 |
A. ehrenbergiana | 9.0 | 2902 | 26,114 | 32.2 | 0.84 | 432 | 363 | 443 |
A. etbaica | 1.8 | 2963 | 5333 | 27.6 | 0.15 | 284 | 42 | 51 |
A. gerrardii | 7.0 | 4000 | 28,000 | 93.0 | 2.60 | 161 | 419 | 511 |
A. johnwoodii | 4.0 | 11,560 | 46,240 | 46.3 | 2.14 | 239 | 512 | 625 |
A. oerfota | 10.6 | 3000 | 31,800 | 1.9 | 0.06 | 1651 | 99 | 120 |
A. origena | 3.3 | 4256 | 14,045 | 71.6 | 1.01 | 265 | 266 | 325 |
A. tortilis | 3.0 | 6370 | 19,110 | 22.8 | 0.44 | 421 | 183 | 223 |
Lavandula dentata | 0.2 | 18,537/plant | – | – | 0.004 | 10,454 | 43 | 51 |
Lavandula pubescens | 0.2 | 17,750/plant | – | – | 0.003 | 6873 | 19 | 24 |
Nepeta deflersiana | 0.3 | 56,099/plant | 16,830 | 0.1 | 0.001 | 12,548 | 16 | 18 |
Otostegia fruticosa | 0.4 | 27,939/plant | 10,337 | 0.2 | 0.002 | 7708 | 12 | 14 |
Ziziphus nummularia | 0.64 | 57,420 | 36,837 | 45 | 1.66 | 224 | 371 | 447 |
Ziziphus spina-christi | 0.79 | 43,000 | 33,970 | 127.5 | 4.33 | 157 | 680 | 829 |