Endogenous Bio-Chemical Changes Vis-a-Vis Node Positions on one Year Old Shoot in Teak (<I>Tectona grandis</I> L.F.)

D. S. Rajput; Pramod Kumar; S. A. Ansari

doi:10.36808/if/2015/v141i3/63816

Endogenous Bio-Chemical Changes Vis-a-Vis Node Positions on one Year Old Shoot in Teak (Tectona grandis L.F.)

Authors

D. S. Rajput Tropical Forest Research Institute, RFRC, Mandla Road, Jabalpur (Rajasthan)
Pramod Kumar Tropical Forest Research Institute, RFRC, Mandla Road, Jabalpur (Rajasthan)
S. A. Ansari Tropical Forest Research Institute, RFRC, Mandla Road, Jabalpur (Rajasthan)

DOI:

https://doi.org/10.36808/if/2015/v141i3/63816

Keywords:

Adventitious Roots, Endogenous Bio-Chemicals, Moisture Content, Nodes, Vegetative Multiplication Garden.

Abstract

Endogenous contents of moisture, soluble sugars phenols and o-phenols as well as peroxidase activity at rooting zone of successive N_1-10 nodes from top to bottom collected from one year growth of a 5-6 year old teak (Tectona grandis L.f.) bud grafts maintained in vegetative multiplication garden were estimated. No set trend in endogenous bio-chemical parameters suggests that they play active physiological role in differentiation/ growth of shoot appendages and also adventitious roots in excised shoots. Their minimum endogenous levels at N₁ and N₂ may be due to their involvement in extension growth of twigs and leaf expansion related metabolic process, making their limited availability for de novo adventitious roots. Thus, the above preliminary biochemical investigations carried out at various nodes of the same shoot may, to some extent, help explain their differential rooting response besides encouraging in depth exploration to find out biochemical basis of progressive loss of juvenility and rooting potential with the aging of perennial trees.

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