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EFFECT OF NAA AND PORTION OF CUTTING ON ROOTING POTENTIAL OF JATROPHA IN LAMJUNG NEPAL
Milan Pravat Adhikari

Last modified: 2017-08-17

Abstract


Jatropha curcas is a drought resistance plant which is widely used for production of bio fuel. Stem cutting is used widely for propagation of Jatropha with using rooting hormones such as auxin, Naphthaleneacetic Acid (NAA), etc. for better rooting. Three stem portion: Top, middle and basal portion of healthy mature Jatropha stem were treated with 3000ppm of NAA and without use of NAA. The experiment was laid out in two factorial Completely Randomized Design having 6 cuttings on each treatment replicated 4 times in the poly house of Lamjung campus during the months of March to May, 2017. 144 cuttings of length of 15 cm cut were used in experiment followed by quick dip in NAA hormonal solution. The results revealed that interaction effect of portion of the stem and hormone was found significant on number of leaves, root length, root number and sprout length whereas sprout diameter, number of sprouts and rooting percentage was found non-significant. Root length and root number were seen maximum on basal and middle portion treated with NAA respectively whereas rooting percentage were seen highest on top portion without treatment of NAA. NAA effect was seen highly significant on number of leaves and root number whereas stem portion effect seen significant on root length and sprout diameter. Thus it is advisable we use top most portion of Jatropha stem untreated with NAA and middle and basal stem portion treated with NAA for more rooting behavior.


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