ALLEVIATION OF ALUMINUM IN ACIDIC SOILS AND ITS EFFECT ON GROWTH OF HYBRID AND CLONAL OIL PALM SEEDLINGS

作者：Cristancho Jose Alvaro Rodriguez; Hanafi Mohamed Musa^*; Omar Syed Rastan Syed; Rafii Yusop Mohd; Munevar Martinez Fernando; Castilla Campos Carlos Enrique

来源：Journal of Plant Nutrition, 2011, 34(3): 387-401.

DOI：10.1080/01904167.2011.536880

• chlorophyll concentration
• clonal
• oil palm seedlings
• plant growth
• soil acidity
• soil amendments

Aluminum (Al) toxicity is an important factor in limiting crop production. The present study examined the Al alleviation effects on the growth of hybrid (breeding) and clonal (tissue culture) of D x P oil palm seedlings. The experiment was performed using calcium carbonate (CaCO3), and ground magnesium limestone (GML) and magnesium carbonate (MgCO3) as soil-amendments at different rates in Colombia and Malaysia, respectively. The effects of the treatments were evaluated monthly on vegetative variables and visual symptoms. Chlorophyll concentrations were recorded in Malaysia at the fifth month growing stage. The different amendments improved the soil fertility and it was reflected on better performance of shoot and root growth. The chlorophyll content in the frond number 3 for both materials enhanced significantly when Al saturation was low (0-30%). The results from the experiment revealed the importance of neutralization of Al in reducing its toxicity in oil palm.

• 出版日期2011