Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Effect of plant age and auxin treatment on rooting response in stem cuttings of Prosopis cineraria.

Abstract

Rooting behaviour was investigated in stem cuttings of Prosopis cineraria prepared from 8-year-old trees (from Hisar, Haryana) and from 6-month-old seedlings. Among 20 treatments, two combinations of auxins (IAA + IBA + 2,4-D; and NAA + IBA + thiamin) at concentrations of 2000 and 4000 mg/litre, respectively, stimulated statistically significant (p <0.05) rooting of up to 60% in stem cuttings taken from 6-month-old plants, while the same combinations of auxins at concentrations of 1000 and 4000 mg/litre, respectively, induced rooting up to a maximum of 35% in cuttings from 8-year-old trees. Other treatments with auxins applied singly (IAA, 2000 and 8000 mg/litre; IBA, 2000 and 4000 mg/litre; and NAA, 1000 and 8000 mg/litre) or in combinations (IAA + IBA + 2,4-D, 1000 mg/litre; and NAA + IBA + thiamin, 1000 mg/litre) induced rooting in 10-50% of cuttings from 6-month-old plants; none of these treatments induced rooting in cuttings from 8-year-old trees.