Mineral Nutrient Contents of Soil and plant tissues of Abaca (Musa textilis.Nee) in areas infected with the Abaca Bunchy Top Virus (ABTV) in Leyte and Southern leyte

3Jertz Vlyn D. Escala* and Romel B. Armecin, 2013 *(jertz_88@yahoo.com)

 ABSTRACT

This study was conducted in the different abaca growing areas in Leyte and Southern Leyte infected with abaca bunchy top virus (ABTV).  This was done to assess the biomass, nutrient availability, nutrient status, and evaluate the amount of nutrient present in the plant tissues of non-infected and infected plants.  Soil and tissue samples were collected in the different abaca growing areas and these were brought to the laboratory for analysis.

Among the sites sampled, % ABTV infection was higher in Ormoc site and the biomass was higher in non-infected than the infected plants.  Phosphorus and magnesium contents of soil and plant tissues in Ormoc site were low while potassium (K) and iron (Fe) contents were higher.  Nitrogen (N), phosphorus (P), calcium (Ca), magnesium (Mg) and manganese (Mn) were higher in concentration in the leaf tissues. Pseudostem tissue had higher concentration of P and Ca while iron (Fe) and zinc (Zn) in corm tissue.  This finding suggests that ABTV infection reduce the biomass of abaca. Low P and Mg in the soil could contribute to high incidence of infection.

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