AJPS  Vol.2 No.3 , September 2011
Rejuvenation and Adventitious Rooting in Coppice-Shoot Cuttings of Tectona grandis as Affected by Stock-Plant Etiolation
Abstract: The effect of stock-plant etiolation on adventitious rooting of single-node leafy cuttings (SNCs) made from coppice shoots from different age groups of donor plants were investigated for teak (Tectona grandis Linn. f.). When donor plants age were 1-, 2-, 3-, 4-, and 5-year-old, they were coppiced and maintained in the dark for etiolation, while a parallel set was kept in normal light in an open environment. After 20 days, coppice shoots were made into SNCs which were cultured under intermittent mist for rooting. Stock-plant etiolation significantly increased percent rooting, shoot and root length, and number of roots per SNC, but callusing at the base of SNCs decreased. Etiolated SNCs have shown 71.7% rooting, whereas for controls (non-etiolated), the response was 41.7%. The effect of aging on callusing, rooting and sprouting of etiolated and non-etiolated coppice shoots cuttings varied widely. Aging of donor plants decreased rooting and sprouting capability in SNCs and increased callusing at the base of etiolated cuttings. The results showed that stock-plant etiolation in 1-, 2-, 3-, 4-, and 5-year-old donor plants hastened rooting potential by rejuvenation of coppice shoots.
Cite this paper: nullHusen, A. (2011) Rejuvenation and Adventitious Rooting in Coppice-Shoot Cuttings of Tectona grandis as Affected by Stock-Plant Etiolation. American Journal of Plant Sciences, 2, 370-374. doi: 10.4236/ajps.2011.23042.

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