Standardization of IBA Concentration for Rooting of Cuttings of some Indigenous Fruit Crops of Assam

Abstract

An experiment was conducted to study the effect of different concentrations of IBA (250, 500, 1000, 1500 and 2000 ppm) on rooting of cuttings in five indigenous fruit species- Barthekera (Garcinia pedunculataRoxb.), Teportenga (Garcinia xanthochymus Hk.f), Jalphai (Eleocarpus floribundus Bl ), Nagatenga (Rhus semialata Murr.) and Outenga (Dillenia indica Linn.) during March 2007. Among all the five species studied, Outenga registered highest percentage of rooting (38.86), number of primary roots (12.00), survival percentage (40.47) and longest shoots (20.41cm). IBA @ 2000 ppm exhibited highest percentage of rooting (37.13), number of primary roots (9.13), survival percentage (35.69) and longest shoots (17.91cm).

Keywords

• Cuttings
• Indigenous Fruits
• Rooting
• Vegetative Growth
• Indole Butyric Acid