Propagation: herbaceous plants

The roots were used as a source material for mass propagation of several herbaceous [40-43] and woody [44-47] species. In most cases, they were roots of seedling [41, 45, 46], intact plants [44] or in vitro shoots [40, 43]. The regeneration of plantlets from a well-established root culture was reported in genus Nicotiana [42]. In the case of woody species. 

Vanilla is a fleshy, herbaceous, perennial vine that climbs to a height of 12 to 15 m. It thrives in a hot, humid climate up to about 2500 ft. The plant needs protection from wind. Under cultivation the supports are normally growing trees or shrubs planted at 8-ft intervals. The plant is propagated by cuttings that are planted close to the base of each support tree and regularly pruned to enable easy collection of the fruit. The plant flowers after 2 years, starts fruiting after 3 years and reaches a maximum yield in 10 to 12 years, after which time it is usually replaced by fresh... 

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