EFFECT OF DEFOLIATION OF SCION AND PLANT GROWTH REGULATORS ON WEDGE GRAFTING AND GROWTH OF SAPLING IN GUAVA (Psidium guajava L.)
Loading...
Date
2021-06-09
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
COLLEGE OF AGRICULTURE, UMMEDGANJ, KOTA
Abstract
The experiment entitled “Effect of defoliation of scion and plant growth regulators
on wedge grafting and growth of sapling in guava (Psidium guajava L.)” was
carriedd out at modal nursery unit of Krishi Vigyan Kendra, Borkhera, Kota under the
supervision of Department of Horticulture, College of Agriculture, Ummedganj, Kota
(Agricultural University, Kota) during November 2020 to find out the graft success,
survival and subsequent growth of grafted guava plant. Total 21 treatment
combinations consisting three levels of prior defoliation of scion i.e. no defoliation,
defoliation of scion at 5 days before grafting and defoliation of scion 10 days before
grafting and 7 levels of plant growth regulators i.e. (no defoliation, NAA 50 ppm at
rootstock, NAA 50 ppm at scion, BA 25 ppm at rootstock, BA25ppm on scion, NAA
50 ppm on scion at instant dip, BA 25 ppm on scion at instant dip) were attempted in
present study. The significance levels of thesis treatments evaluated under Factorial
completely randomized design with three replications.
It is evident of study the earliness in the graft union, per cent graft success and per cent
graft survival and their subsequent growth were significantly influenced by various
treatment combinations. The earliest graft union (9.75 days) and maximum graft
survival (91.00%) was exhibited at defoliation of scion 10 days before grafting with
spray of 50 ppm NAA on scion before 24 hr. of grafting. Whereas, the application of
defoliation 10 days before grafting with 50 ppm NAA on rootstock resulted maximum
success of graft (93.00%). However, the subsequent growth of graft sapling in respect
to length of scion shoot, diameter of scion shoot, increases in diameter of rootstock,
number of leaves, number of lateral shoots, dry weight and fresh weight of leaves and
roots are significantly increases due to different treatment combinations, defoliation of
scion, 10 days before grafting with spray of BA 25 ppm on scion/rootstock before 24
hr. in grafting.
Description
EFFECT OF DEFOLIATION OF SCION AND
PLANT GROWTH REGULATORS ON
WEDGE GRAFTING AND GROWTH OF
SAPLING IN GUAVA (Psidium guajava L.)