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.
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