Vegetative Growth and Root Development of Euonymus Japonica Cuttings is Influenced by Various Concentrations of Indole Butyric Acid (IBA) and Transplantation Dates

Abstract

Propagation through cuttings is the expedient way to get more number of plants, moreover
root initiation in cuttings of Euonymus japonica is a key success if plant growth regulator is
applied. Plant growth regulator like IBA stimulates cell division, cell elongation and
metabolic activities at the place where cut is made and thus causes root initiation. Hence the
current research study was carried out to investigate the influence of different IBA
concentrations (0, 2000, 4000, 6000 and 8000ppm) and planting dates (with 15 days of
interval) on vegetative and rooting development. Semi hardwood cuttings treated with IBA @
6000 ppm attained minimum days to sprouting and root initiation, whereas, maximum sprout
length, number of leaves sprout-1, stem diameter, total number of leaves plant-1, leaf area,
number of roots plant-1, root length and root diameter. Best results on sprout length, number
of leaves sprout-1, stem diameter, number of leaves plant-1, leaf area, number of roots plant-1,
root length and root diameter and minimum days to sprouting and root initiation were
recorded in cuttings planted on 6th March. The interaction effects reported best results at IBA
level of 6000 ppm and planting date, 6th March for rooting and growth attributes. It could be
concluded that cutting dipped in 6000ppm IBA solution improved most of the studied
attributes of Euonymus japonica. Similarly, planting Euonymus japonica cuttings on 6th
March was found best to produce better rooting.