Effect of enzyme ?-amylase on the promotion of polyembryony in mango (Mangifera indica L.).
Babu K. D., Parameswaran N. K., Rajeevan P. K., Radha T., Augustin A., Balasundaran M.
Author Affiliation: College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, India.
Environment and Ecology 25 : 250-253
Abstract : Stones (seeds) extracted from fully ripe fruits of polyembryonic mango cultivars Muvandan and Vellaikolumban were subjected to various mechanical and hormonal treatments at the orchard in Kerala, India during May 2003. The mechanical treatments include cracking, half split and full split. The mechanically treated seed stones along with an untreated control were further subjected to growth regulator (GA3: 50, 100 and 200 ppm) and enzyme (?-amylase: 100, 200 and 500 ppm) treatments along with water soaking and control. The seed stones were sown in perforated polythene bags containing sand, soil and farmyard manure (FYM) in 1:1:1 ratio. Results revealed that ?-amylase was significantly effective in promoting the polyembryony and the highest number of sprouts was obtained from the stones treated with 500 ppm ?-amylase in both Muvandan (3.33) and Vellaikolumban (3.17) under full split condition.