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Use of P-32 Isotope and Phosphate Transporter for Selecting Oil Palm Genotypes with Efficiency P Uptake Ability
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Phosphate is one of the crucial elements to complete the plant's life cycle. The use of phosphate fertilizer in manipulating the phosphate availability in Malaysian soils has been a common strategy by planters to improve the plant's growth. In view that phosphate resources is depleting and some environmental issues that arises due to excessive phosphate fertilizer application, a concept of "tailoring the plant to fit the soil" is adopted. We implemented two techniques to identify oil palm genotypes with better phosphate uptake ability. The outcome of the research has the implication that phosphate resources in the soil is better utilized and promotes sustainable agricultural practice. In our study, P-32 radioisotope proved to be a good method to quantify and differentiate the genotypes in taking up applied P among oil palm genotypes were observed. Next, we incorporated molecular technique to understand the uptake of P among oil palm genotypes during P-starvation. A distinct difference in expression of phosphate transporters were observed among the genotypes. These two techniques will contribute in the oil palm breeding program to identifying genotypes with better P uptake ability.

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Faculty of Agriculture, Universiti Putra Malaysia
43400 Serdang

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Prof. Dr. Zaharah A Rahman
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