STANDARDIZATION OF VEGETATIVE PROPAGATION OF STEVIA (Stevia rebaudiana Bertoni) THROUGH STEM CUTTINGS BY USING GROWTH REGULATORS
Loading...
Date
2008-12-20
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Sciences GKVK, Bangalore
Abstract
The studies on “Standardization of vegetative propagation of stevia
(Stevia rebaudiana Bertoni) through stem cuttings by using growth
regulators” was carried out at the Department of Horticulture, University
of Agricultural Sciences, GKVK, Bangalore during 2006-07.
Matured stem cuttings of stevia were planted in kharif, autumn
and summer seasons. The cuttings planted in kharif showed significantly
early sprouting (12.52 days), high rooting percentage (54.25%), more
number of sprouts (3.10), longest sprout (16.02 cm), more leaves (20.96),
more number of roots (18.62), maximum root length (10.09cm) and
recorded highest survival percentage (78.41%).
With regard to length of cuttings 9 cm long cuttings recorded early
sprouting (13.66days) and maximum rooting percentage (51.32%) with
highest survival percentage (74.41%) compared to 6 cm long cuttings.
Among the growth regulators used, the cuttings treated with a
combination of NAA 2000ppm + IBA 2000ppm recorded early sprouting
(11.00 days) with high survival percentage (73.65%). The cuttings treated
with 1BA 2000 ppm recorded highest percentage of rooting (62.95%)
Cuttings of 9 cm length treated with a combination of NAA 2000
ppm + IBA 2000 ppm planted during kharif season registered the highest
fresh weight of roots (0.84 g) and maximum survival percentage
(84.40%).
The present study clearly indicated that, for vegetative
propagation, of a delicate plant species like stevia, treating the cuttings
of 9 cm length with IBA 2000 ppm during kharif season are very crucial
for obtaining the highest rooting success.
Description
Keywords
null