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100			_aAhmad Bastiah
245		4	_aThe merits of using advanced planting materials in rubber forest plantation
260			_bJournal of Rubber Research _c2006
300			_a178-192
520			_aThe 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 GG4, 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 inthe first trial. The girth superiority of corestumps over those of two-whorled 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.
650			_aBudding
650			_aCore stumps
650			_aGirth size
650			_aImmaturity period
650			_aPBIG GG4
650			_aPBIG GG5
650			_aPBIG GG6
650			_aPlanting materials
650			_aRRIM 2020
650			_aRRIM 2025
650			_aRRIM 2027
650			_aRubber forest
650			_aSeedlings
700			_aIbrahim Naimah
700			_aOthman Ramli
942			_cJS
999			_c70855 _d70855