STUDIES ON PROPAGATION TECHNIQUES IN AVOCADO (Persea americana, Mill)
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Date
2019-08
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University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bengaluru).
Abstract
An experiment onstudies on propagation techniques in avocado (Perseaamericana, Mill)was carried out at the Department of Fruit Science, COH, Mysuru. The experiment on effect of seed sowing from the day of extraction to 45 days after extraction at 5 days interval on seed viability revealed that significantly minimum number of daysfor initiation ofgermination (16 days), fifty per cent germination (27 days), complete germination (36 days) and maximum germination percentage (96.60%) was noticed in the seeds which were sown on the day of extraction. Highest grafting success (75.00 %) and survivability percentage (81.80 %) was recorded with 175 days old rootstock and there is no significant results for graft growth parameter.Seeds soaked in GA3 500 ppm for 12 hours taken minimum number of days for early germination (18 days),fifty per cent germination (29 days), complete germination (38 days) and maximum germination percentage (96.60 %) was recorded in control. Highest grafting success (88.20 %) and survivability percentage (71.40 %) was recorded using GA3 250 ppm and control, respectively. Highest percentage success and percentage survivability of the grafts was maximum (40.00 and 83.30 %, respectively) in two month old rootstock.