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Liquid Culture Systems for in vitro Plant Propagation

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380 Pratap Kumar Pati et al.<br />

Percent root<strong>in</strong>g<br />

100<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

Control<br />

(<strong>Liquid</strong>)<br />

Control<br />

(Agar)<br />

Agar +<br />

0.25mol*<br />

Agar +<br />

0.5mol*<br />

Medium<br />

Agar +<br />

0.75mol*<br />

Agar +<br />

1.0mol*<br />

Agar +<br />

1.25mol*<br />

Percent root<strong>in</strong>g 85,8 5 76,4 81,8 80 78,5 66,6<br />

Osmotic potential 4,97 2,57 3,77 4,71 5,82 6,31 6,75<br />

Figure 4: Effect of osmotic potential on root<strong>in</strong>g of microshoots <strong>in</strong> R. damascena [Control<br />

liquid: ½ MS+IBA (10µmol)+sucrose (3%); Control agar: ½ MS+IBA (10µmol)+sucrose<br />

(3%)+agar (0.8%)]. Vertical bars are Mean� SE (n=45).<br />

*addition of mannitol (0.25 - 1.25 mol) to medium<br />

Survival (%)<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

31<br />

A<br />

73<br />

B<br />

<strong>Plant</strong>let Category<br />

Figure 5: Effect of plantlet category [A. Root number more (>10) and root length less (0.2-<br />

1.0 cm); B. Root number more (>10) and root length more (1.0-5.0cm); C. Root number less<br />

(

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