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Protocols for Micropropagation of Woody Trees and Fruits

Protocols for Micropropagation of Woody Trees and Fruits

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IN VITRO PROPAGATION OF NUTMEG<br />

Table 1. Concentration (mg/L ) <strong>of</strong> inorganic salts in the basal media.<br />

Constituents<br />

Ammonium nitrate<br />

Medium A<br />

400<br />

Media B1– B 7<br />

1650.0<br />

Boric acid 6.2 6.2<br />

Calcium chloride, anhydrous 332.2 332.2<br />

Cobalt chloride,6 H2O 0.025 0.025<br />

Cupric sulphate, 5 H 2O 0.025 0.025<br />

Disodium EDTA 74.5 37.26<br />

Ferrous sulphate, 7 H2O 55.7 27.8<br />

Magnesium sulphate 180.7 —<br />

Magnesium sulphate, 7 H2O — 370.0<br />

Manganese sulphate, H2O 16.9 16.9<br />

Potassium iodide 0.3 0.83<br />

Potassium nitrate 480.0 1900.0<br />

Potassium phosphate, monobasic — 170.0<br />

Sodium molybdate, 2 H2O 0.25 0.25<br />

Sodium phosphate, monobasic, anhydrous 330.6 —<br />

Zinc sulphate, 7 H2O 8.6 8.6<br />

Table 2. Organics, growth regulators (mg/L) <strong>and</strong> other supplements added to the different<br />

inductive media.<br />

Components<br />

(mg/L)<br />

A* B1 B2 B3 B4 B5 B6 B7<br />

Myo-inositol 1000 100 100 100 100 100 100 100<br />

Sucrose 20000 30000 30000 30000 30000 30000 30000 30000<br />

Thiamine<br />

HCl<br />

8.5 10 0.5 0.5 0.5 0.5 0.5 0.5<br />

Nicotinic<br />

acid<br />

5 1 0.4 0.4 0.4 0.4 0.4 0.4<br />

Pyridoxine 5 1 0.5 0.5 0.5 0.5 0.5 0.5<br />

HCl<br />

2,4-D 10 1 4 — — — — —<br />

IAA 10 1 2 — — — — —<br />

NAA — — — — 5 5 5 5<br />

GA3 — — — 5 — — 1 —<br />

BAP — 4 — — 1 1 — 1<br />

Kinetin 10 — — — — — — —<br />

TDZ — — — — — 0.1 — 0.05<br />

Activated<br />

charcoal<br />

250 250 250 250 250 250 250 250<br />

PEG 4000 — — — — — — 50,00 —<br />

* To medium A , 10% (w/ v) potato extract was added. Potato extract was prepared from 100<br />

g potato boiled in water, mashed, cooled <strong>and</strong> filtered.<br />

Abbreviations. 2,4-D: 2,4 dichlorophenoxyacetic acid; IAA: indole-3-acetic acid; NAA:<br />

naphthaleneacetic acid; BAP: benzylaminopurine; GA3 : gibberellic acid; TDZ: thidiazuron;<br />

PEG: polyethylene glycol.<br />

0<br />

337

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