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All Journal International Journal of Multidisciplinary: Applied Business and Education Research
Armecin, Romel B.
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Environmental Science Medicine & Pharmacology

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Validating Nutrient Deficiencies in Abaca (Musa textilis Née var. Inosa) via Morpho-Physiological and Biochemical Analysis Under Field Conditions Rosit, James Francienne J.; Armecin, Romel B.
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 6 No. 6 (2025): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science / FSH-PH Publications

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.06.06.10

Abstract

This study was conducted in order to validate and compare the nutrient composition, morpho-physiological and biochemical properties of asymptomatic and symptomatic abaca in the field. This approach may provide insights on the possible association between disease infestation and nutrient deficiency symptoms observed in abaca. Three sampling sites were selected for sample collection; The National Abaca Research Center (NARC), Visayas State University, Baybay City, Leyte, Brgy. Basak, Maasin City and Brgy. Lonoy, Maasin City, Southern Leyte. Five sample plants for both asymptomatic and symptomatic plants were collected for data gathering. Field validation showed that asymptomatic showed better leaf morphology than symptomatic abaca plants. Furthermore, asymptomatic abaca plants have higher chlorophyll a and b content than symptomatic plants. Nitrogen, phosphorus, and potassium content in asymptomatic abaca plants were higher than symptomatic plants. Nitrogen content was higher in soils from asymptomatic abaca plants while phosphorus and potassium were very high on soils from symptomatic abaca plants. Despite the very high phosphorus and potassium content in symptomatic soils, abaca plants exhibited clear signs of nutrient deficiency, suggesting that excessive P and K may interfere with the availability or uptake of other essential nutrients, such as magnesium, calcium, or micronutrients like zinc and iron resulting to the occurrence of nutrient deficiency symptoms in the abaca plants.
Simulation and Characterization of Macro-Nutrient Deficiency Symptoms of Abaca (Musa textilis Née var. Inosa) Grown Using Nutrient Film Technique (NFT) Rosit, James Francienne J.; Armecin, Romel B.; Belarmino, Marilyn M.; Benitez, Marilou M.; Cuadra, Lijueraj
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 6 No. 8 (2025): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science / FSH-PH Publications

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.06.08.18

Abstract

This study was conducted in order to determine the effects of macronutrient deficiency to the morpho-physiological and biochemical properties of abaca. Randomized Complete Block Design was used in the study with three nutrient omissions (N, P & K) replicated three times with 12 samples per treatment replicate. This was conducted at the National Abaca Research Center screenhouse, Visayas State University, Baybay City, Leyte.  Abaca under N and K deficiency produces the shortest plant height, pseudostem length, pseudostem girth, leaf length and leaf width. N deficient plant produces the smallest total leaf area while P deficient plants reduce pseudostem length and leaf width of abaca. However, P deficient plants showed comparable effects to the plant height, pseudostem girth, leaf length and total leaf area of abaca plants with complete nutrients. Furthermore, chlorophyll a and chlorophyll b content of abaca was lowest under N deficiency while control, P and K deficient plants showed comparable results. Free radical scavenging activity was also lowest under N and K deficient plants. Stomatal aperture was lowest under N, P & K deficient plants while P deficiency decreases stomatal length. These results suggests that abaca is more sensitive to N and K deficiency as most of the morpho-physiological and biochemical properties of abaca was significantly reduced under these conditions.
Co-Authors Belarmino, Marilyn M. Benitez, Marilou M. Cuadra, Lijueraj Rosit, James Francienne J.