EVALUATION OF DIFFERENT PROPAGATING STRUCTURES FOR MULTIPLICATION OF GUAVA (Psidium guajava L.)
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Date
2020-12
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University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bengaluru).
Abstract
The present investigation entitled on “Evaluation of different propagating
structures for multiplication of guava (Psidium guajava L.)” was carried out during the
year 2019-20 at University of Horticultural Sciences, Bagalkot, Post Graduation Research
block, College of Horticulture, Mysore. The results of the investigation revealed that, the
highest graft success (81.33 %), graft survival percentage (62.66 %) were registered in
seven months old rootstock. The maximum number of leaves per graft (15.80), number of
sprouts per graft (3.68) was recorded in six months old rootstock, when the grafts kept
under the shade net condition at 90 days after softwood grafting. The highest graft height
(23.53 cm), days taken for sprouting (12.75), sprout length (5.75cm) was noticed in seven
months old rootstock. The maximum scion diameter (6.33 mm) was recorded in six
months old rootstock under polyhouse condition at 90 days after softwood grafting.
Among different scions Sardar variety performed better over other scions. Graft success
(84.44 %) and percentage of graft survival (64.44 %), graft height (23.74 cm) was
recorded highest in seven months old rootstock at 90 days after softwood grafting. The
growth parameters like highest number of leaves per graft (19.66) and number of sprouts
per graft (3.783) was recorded in Arka Rashmi by using six months old rootstock. The
interaction effect between the different growing conditions and scions showed maximum
graft success (96.66 %), graft survivability (76.66 %) under shade net condition and graft
height (26.56 cm) under open condition with the use of Sardar scion, by using seven
months old rootstock. Arka Rashmi recorded maximum number of leaves per graft
(19.66), sprouts per graft (3.87) under shade net condition by using six months old
rootstock.