A Note on Subsequent Results of Field Grafting Trials with Caribbean Pine

Systematic field grafting was done in Pinus caribaea from September 1975 to June 1976 at New Forest Debra Dun.The months of October, November, February and March gave 64-90% grafting success. Success was also achieved during September, December & January ranging from 15% to 50%. Most conductive mean temperature range was observed to be 13° to 22°C. High mean temperatures ranging from 23 to 27 with R.H. values below 50% proved detrimental for graft union. Grafting can be done sucessfully from September to March in Caribbean pine under Dehra Dun conditions.