EFFECTS OF FERTILISER TREATMENTS ON GROWTH OF <em>DYERA</em> <em>COSTULATA</em> STOCK PLANTS AND ROOTING ABILITY OF THEIR STEM CUTTINGS

Authors

  • H. Aminah & N. Lokmal

Keywords:

Fertiliser, Dyera costulata, stock plant, growth, survival, rooting

Abstract

Application of NPK (12N:12P2O5:l7K2O:2MgO + trace elements) significantly improved the height and diameter growth of potted Dyera costulata stock plants compared with those without fertiliser. Cuttings taken from non-fertilised stock plants and plants treated with 1 g fertiliser did not differ significantly in rooting but their rooting percentages were significantly higher than those from stock plants receiving 5 g fertiliser. The highest rooting percentage was obtained with cuttings from non-fertilised stock plants (66.7%) followed by those receiving 1 g (56.7%) and 5 g (46.7%) fertiliser. However, without fertiliser, frequent harvest of cuttings will eventually exhaust the nutrients from the potted stock plants. In view of this, application of 1 g fertiliser plant-1 monthly may help maintain healthy stock plant growth for continuous production of cutting materials.
High doses of fertiliser (5 and 10 g plant-1 month-1) are not recommended, being detrimental to both survival of stock plants and rooting of cuttings. It was also observed that high rooting percentages (82%) could be obtained from cuttings taken from node position two.

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Published

2022-08-23

How to Cite

H. Aminah & N. Lokmal. (2022). EFFECTS OF FERTILISER TREATMENTS ON GROWTH OF <em>DYERA</em> <em>COSTULATA</em> STOCK PLANTS AND ROOTING ABILITY OF THEIR STEM CUTTINGS. Journal of Tropical Forest Science (JTFS), 14(3), 412–420. Retrieved from https://jtfs.frim.gov.my/jtfs/article/view/1298

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Articles
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