Table 1.
Germination, growth rates and flowering times for undomesticated Sorghum species
| Species | DTT* | Height (cm) |
Days till flower | Number of panicles |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 d | 60 d | 90 d | 130 d | 10 dpa | 20 dpa | 30 dpa | 40 dpa | Final max count | |||
| S. amplum | 4·5 | 25 | 40 | 40 | 125 fl | 136 | md | 16 | 29 | – | – |
| S. angustrum | 5·5 | 18 | 40 | 62 fl | 95 fl | 86 | 9 | 20·5 | 58 | 146 | >300 |
| S. brachypodum | 3·5 | 35 | 70 | 150 fl | 210 fl | 86 | 4 | 26·5 | 45 | 62·5 | >300 |
| S. bulbosum | 3·0 | 30 | 55 | 120 fl | 170 fl | 95 | 22 | 67 | 89 | – | – |
| S. exstans (p) | 3·5 | 12 | 45 fl | 70 fl | 95 fl | 65 | 10 | 17 | 47 | 113 | 235 |
| S. intrans (p) | 3·5 | 5 | 20 p | 20 p | 85·0 | >160 | – | – | – | – | – |
| S. laxiflorum | 5·5 | 60 | 60 fl | 90 fl | 95 fl | 61 | md | 16·5 | 44 | 94 | 214 |
| S. leiocladum | 5·5 | 27 | 30 | 35 | 85·0 | 141 | 1 | – | – | – | – |
| S. matarankense | 4·5 | 58 | 88 fl | 130 fl | 150 fl | 81 | 2 | 5 | 23 | 53 | 69 |
| S. nitidum | 4·0 | 25 | 48 | 60 | 90 | >160 | – | – | – | – | – |
| S. plumosum | 8·0 | 8 | 15 | 15 | 60 | >160 | – | – | – | – | – |
| S. propinqeum | 3·0 | 45 | 50 | 100 | 240 fl | 106 | 19 | 35 | – | – | >300 |
| S. stipoideum | 4·0 | 45 | 70 | 60 fl | 130 fl | 91 | 18 | 60 | 112 | – | – |
| S. timorense | 3·0 | 45 | 100 fl | 100 fl | 145 fl | 69 | md | 3 | 14 | 18 | 63 |
* DTT, Days till transplant: seeds were germinated on damp filter paper; once a strong radicle and the first coleoptile had emerged they were transplanted to potting mix.
md, Missing data, (p), prostrate growth habit; fl, height was measured to the top of flag leaf or seed head.
A dash indicates that delayed onset of flowering caused the trial to be terminated before counts could be made.