Abstract - The Merits of Using Advanced Planting Materials in Rubber Forest Plantation


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	Publications of MRB Latest Publications MRB Digest Journal of Rubber Research 3^rd Qtr 2008 Vol 11(3) 2^nd Qtr 2008 Vol 11(2) 1^st Qtr 2008 Vol 11(1) 4^th Qtr 2007 Vol 10(4) 3^rd Qtr 2007 Vol 10(3) 2^nd Qtr 2007 Vol 10(2) 1^st Qtr 2007 Vol 10(1) 1^st Qtr 2006 Vol 9(1) 2^nd Qtr 2006 Vol 9(2) 3^rd Qtr 2006 Vol 9(3) 4^th Qtr 2006 Vol 9(4) Submit paper/article Order Form	Abstract The Merits of Using Advanced Planting Materials in Rubber Forest Plantation Bastiah Ahmad, Naimah Ibrahim and Ramli Othman The growth of three types of planting materials, namely buddings and seedlings with different number of whorls and ‘core’ stumps, in a rubber forest plantation system was studied in three trials. In the first trial, two- and four-whorled buddings of three clones (RRIM 2020, RRIM 2025 and RRIM 2027) were compared. The second trial compared growth of seedlings (PBIG GG 4, 5 and 6) and three- and six-whorled buddings of RRIM 2001 and RRIM 2026. In another trial, the growth of three types of planting materials namely two- and six-whorled buddings and ‘core’ stumps were also compared. Generally, buddings planted as advanced planting materials (with four or six whorls) had better girth than two- or three-whorled buddings or seedlings. However, advanced seedlings did not indicate the same trend. Clone RRIM 2020 had significantly better girth than RRIM 2027 in the first trial. The girth superiority of ‘core’ stumps over those of twowhorled buddings was maintained for 2.5 years after planting whilst the six-whorled buddings caught up with the ‘core’ stumps in girth size as early as two years after planting. The significance of these findings in relation to the use of advanced planting materials to reduce the period of immaturity of rubber and for rubber forest plantation is discussed. back
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