Clonal variation in rooting behaviour and growth traits of stem cuttings of Dalbergia sissoo (roxb.)

Abstract

In the present study, the variability among the Dalbergia sissoo clones was investigated for macropropagation and growth of plantlets. The shoots from 15 different clones from the clonal hedge orchard maintained at Research Farm of the Department of Forestry and Natural Resources, Punjab Agricultural University, Ludhiana were collected in month of April to make cuttings for evaluating the variability in the rooting behaviour of Dalbergia sissoo clones. The vermiculite filled in trays (90 cc) was used as rooting medium. The cuttings of Dalbergia sissoo treated with 2000 ppm IBA were maintained in mist chamber conditions to produce rooting. The experiment was arranged in Factorial Completely Randomized Design (CRD) using four replications. Observations for various rooting traits were recorded at the end of experiment. Significant differences were observed among 15 clones of Dalbergia sissoo for rooting and growth traits. The percent rooting varied from 8.75 to 61.25. Clone 5 was found to be the superior to all other clones except that of clone 1 and clone 7.