Abstract
The study was conducted to determine the effect of various auxin formulations on rooting behaviour of seedlings, ramet and sprout origin cuttings in Pinus roxburghii. Significantly high rooting of 71.4 per cent and 61 per cent was obtained when seedling origin cuttings were treated with auxin formulation (IBA, NAA) and struck in summer (May) and rainy season (July) respectively. While first cycle ramet cuttings produced 49.9 per cent success in rainy season the sprout cuttings from 15-yr old chir trees produced highest rooting of 81.5 per cent in mist when such cuttings were treated with 7500 ppm-Ac during summer.
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