Table 2. Elongation of multiple shoot buds developed from pseudobulb explant of D. papebrae on 0.8% (w/v) agar solidified and liquid media with different kinds of PGRs.
Culture medium with different combinations and concentrations of PGRs |
Average initial length (cm) of individual shoot bud |
Average length (cm) of individual shoot bud after 30d of culture on elongation medium |
Increase in length** (cm) of shoot bud within 30d of culture on elongation medium |
Average initial length (cm) of individual shoot bud |
Average length (cm) of individual shoot bud after 30d of culture on elongation medium |
Increase in length** (cm) of shoot bud within 30d of culture on elongation medium |
Solid media |
Liquid media |
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MS + 3% (w/v) sucrose + 1.0 mg/l IAA + 0.5 mg/l BAP |
1.65±0.15 |
3.78±0.09 |
2.13±0.12 |
1.40±0.11 |
3.64±0.08 |
2.24±0.14 |
MS + 3% (w/v) sucrose + 0.5 mg/l IAA + 1.0 mg/l BAP |
1.58±0.09 |
4.49±0.12 |
2.91±0.16 |
1.35±0.13 |
4.36±0.16 |
3.01±0.11 |
MS + 3% (w/v) sucrose + 1.0 mg/l IAA + 1.0 mg/l BAP |
1.40±0.11 |
3.86±0.14 |
2.46±0.10 |
1.52±0.12 |
4.25±0.11 |
2.73±0.14 |
MS + 3% (w/v) sucrose + 1.0 mg/l NAA + 0.5 mg/l BAP |
1.45±0.19 |
3.50±0.19 |
2.05±0.13 |
1.45±0.18 |
4.07±0.14 |
2.62±0.16 |
MS+3% (w/v) sucrose + 0.5 mg/l NAA+1.0 mg/l BAP |
1.70±0.11 |
4.68±0.10 |
2.98±0.17 |
1.52±0.08 |
4.63±0.17 |
3.11±0.12 |
MS + 3% (w/v) sucrose + 1.0 mg/l NAA + 1.0 mg/l BAP |
1.55±0.14 |
4.17±0.18 |
2.62±0.08 |
1.70±0.14 |
4.75±0.19 |
3.05±0.17 |
MS + 3% (w/v) sucrose + 1.0 mg/l Pic + 0.5 mg/l BAP |
1.65±0.17 |
4.02±0.09 |
2.37±0.11 |
1.65±0.12 |
4.27±0.16 |
2.62±0.19 |
MS+3% (w/v) sucrose + 0.5 mg/l Pic + 1.0 mg/l BAP |
1.52±0.09 |
4.54±0.15 |
3.02±0.19 |
1.52±0.17 |
4.56±0.10 |
3.04±0.16 |
MS + 3% (w/v) sucrose + 1.0 mg/l Pic + 1.0 mg/l BAP |
1.48±0.09 |
5.24±0.11 |
3.76±0.14 |
1.45±0.15 |
4.36±0.09 |
2.91±0.10 |
PM + 2% (w/v) sucrose + 1.0 mg/l IAA + 0.5 mg/l BAP |
1.45±0.15 |
3.47±0.07 |
2.02±0.12 |
1.50±0.10 |
3.95±0.06 |
2.45±0.07 |
PM + 2% (w/v) sucrose + 0.5 mg/l IAA + 1.0 mg/l BAP |
1.40±0.10 |
4.25±0.19 |
2.85±0.16 |
1.65±0.07 |
4.61±0.12 |
2.96±0.08 |
PM + 2% (w/v) sucrose + 1.0 mg/l IAA + 1.0 mg/l BAP |
1.55±0.17 |
4.04±0.14 |
2.49±0.11 |
1.70±0.09 |
4.27±0.15 |
2.57±0.11 |
PM + 2% (w/v) sucrose + 1.0 mg/l NAA + 0.5 mg/l BAP |
1.60±0.18 |
3.76±0.15 |
2.16±0.13 |
1.45±0.17 |
3.73±0.14 |
2.28±0.13 |
PM + 2% (w/v) sucrose + 0.5 mg/l NAA + 1.0 mg/l BAP |
1.65±0.13 |
4.56±0.16 |
2.91±0.18 |
1.70±0.10 |
4.71±0.17 |
3.01±0.8 |
PM + 2% (w/v) sucrose + 1.0 mg/l NAA + 1.0 mg/l BAP |
1.70±0.08 |
4.35±0.07 |
2.65±0.17 |
1.75±0.18 |
4.49±0.11 |
2.74±0.9 |
PM + 2% (w/v) sucrose + 1.0 mg/l Pic + 0.5 mg/l BAP |
1.52±0.19 |
3.67±0.17 |
2.15±0.13 |
1.80±0.12 |
4.21±0.09 |
2.41±0.7 |
PM + 2% (w/v) sucrose + 0.5 mg/l Pic + 1.0 mg/l BAP |
1.50±0.16 |
4.26±0.13 |
2.76±0.17 |
1.52±0.13 |
4.53±0.07 |
3.01±0.13 |
PM + 2% (w/v) sucrose + 1.0 mg/l Pic + 1.0 mg/l BAP |
1.65±0.12 |
4.07±0.12 |
2.42±0.14 |
1.55±0.08 |
4.30±0.16 |
2.75±0.10 |
*All the values are mean ± SE, shoot length of each treatment contains 10 replicates.