Repository logo
Davao del Sur State CollegeDSSCInstitutional Repository
 

Undergraduate Theses

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14578/5

Browse

Filters

20245

Settings

Department: search.filters.department.Institute of Computing, Engineering and TechnologySDG: search.filters.sdg.SDG 12 - Responsible consumption and production

Search Results

Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    Processing of fiber based biofoam cups using sugarcane bagasse and cassava starch as plant container for hydroponic system
    Sarno, Ma. Rachel Anne N. (Davao del Sur State College, 2024-05)
    The study was designed to produce a fiber-based biofoam cup from different mixtures of sugarcane bagasse and cassava starch, an alternative to styrofoam cups as plant containers in a hydroponics set-up. The study was carried out with 3 treatments replicated thrice. The mixture was added with a constant amount of polyvinyl alcohol, glycerol and magnesium stearate by weight basis, and then coated with paraffin wax. The data for density, water absorption, solubility as well as the performance of the biocups in terms of plant growth (no. of leaves), plant mortality and pH level when used as plant containers in Kratky method were gathered through a completely randomized design and analyzed using the analysis of variance (ANOVA) and the Least Significant Difference (LSD) test at 1% and 5% levels. Only the treatment yielding the best results in terms of quality were evaluated for hydroponic application. Statically, the results indicate that the density and water absorption of the cups from the three treatments significantly varied with a P-value of 0.0055 and 0.0127 respectively. However, no significant difference was observed for the solubility of the biocups among the treatment with a P- value of 0.0827. Based on the results, treatment 3 exhibited the highest density and lowest values for solubility and water absorption among the treatments and was selected with the commercially available styrofoam cups as plant containers in Kratky method hydroponics set-up. For the duration of the observation period, all petchay plants survived resulting in a mortality rate of 0%. Furthermore, there was a significant difference in the number of leaves, as indicated by the P-value of 0.0059 while pH level was found to be lower (6.38) for treatment 3 than the control (6.40). The results suggest that biofoam cups are not best to be used as plant container in hydroponics, but due to its higher density, low water absorption and solubility it implies potential suitability for other planting materials, such as for seedlings.
  • Thumbnail Image
    Item
    Water consumption and growth of spring onion (Allium fistulusom L.) under different nutrient solution depths in kratky hydroponics under shaded conditions
    Dabalos, Marc Jay P. (Davao del Sur State College, 2024-06)
    The study was conducted at Davao del Sur State College (DSSC), Brgy. Matti, Digos City, Davao del Sur, to investigate the effect of varying depths of nutrient solution on the water consumption and growth of spring onion. The experiment followed a Completely Randomized Design (CRD) with three treatments and three replications. The treatments were T1 (15cm depth of nutrient solution), T2 (10 cm depth of nutrient solution), T3 (5 cm depth of nutrient solution). The effect of the depths of nutrient solution was determined with regards to the water consumption, plant height, stem diameter, number of leaf, root length, number of shoots per plant and the temperature of nutrient solution. The gathered data was statistically evaluated using analysis of variance (ANOVA) at a significance level of 1% to 5% based on the results of the study, the nutrient solution depths showed no significant effect on the water consumption and growth response of spring onion (Allium fistulusom L.) and also to the nutrient solution temperature.
  • Thumbnail Image
    Item
    The influence of coco peat and coco coir media on germination of lettuce using hydroponic
    Bastida, Inna Mae (Davao del Sur State College, 2024-05)
    The study able to determine the germination of lettuce under SNAP hydroponics nutrient solution. Using different mixture of treatment and nutrient solution. The root length, plant height, number of leaves, germination rate, and water pH were determined. The data was gathered using a Randomized Complete Block Design. The result that root length average range 4.3-5.1 cm. While plant height average range 3.5-8.2 cm. In number of leaves average range 2.4-3 pcs. Germination rate average range 7.3-7.4. There's no significant difference in terms of root length, plant height, number of leaves and germination rate of lettuce.
  • Thumbnail Image
    Item
    Evaluation and processing of yacon (Smallanthus sonchifolius) tubers as alternative sweetener and granulation contents
    Sedon, Rozelle (Davao del Sur State College, 2024-06)
    The study was conducted to develop a Yacon tuber food-grade granule sugar and determine brix level mineral content to produce an alternative sweetener. The study employed a completely randomized design with three treatments and three replications associated with determining the level of sugar in Yacon tubers. Treatment 1 with a physical color of Pale White and is considered as fresh Yacon tubers has a mean of 10.00 with a sugar concentration of 100 grams per liter while treatment 2 with a physical color of Yellow has been stored for 3 days has a mean of 14.00 and has a sugar concentration of 140 grams per liter. Treatment 3 with a physical color of Mild Orange has a mean ratio of 14.67 with a sugar concentration of 146.7 grams per liter. The study reveals that the physical color Yellow (Treatment 2) and Mild Orange (Treatment 3) has a significant difference in the level of sugar concentration of Yacon tubers as an alternative sweetener. The findings indicate that the level of brix content has a significant effect on the physical color of Yacon tubers according to the number of days of storage. Furthermore, treatment 3 has the highest sugar concentration among all treatments.
  • Thumbnail Image
    Item
    Physical characterization of coconut fruit (Cocos nucifera L.)
    Andallaza, Leamae B. (Davao del Sur State College, 2024-06)
    This study investigated the physical characteristics of Tacunan Green Dwarf (TACD) coconuts from a farm in Barangay Harada Butai, Padada, Davao del Sur. The farm spans 4 hectares, with 16-year-old trees grown at an elevation of 18 meters in clay soil. Farming practices involved fertilizer application and intercropping. Key parameters examined include major diameter, minor diameter, intermediate diameter, flesh thickness, shell thickness, geometric mean diameter, sphericity, surface area, fruit weight, shell weight, husk weight, coconut water weight, and flesh weight. A Complete Randomized Design (CRD) was used to evaluate the data using three treatments: Young coconut fruits (Treatment 1), fairly mature coconut fruits (Treatment 2), and mature coconut fruits (Treatment 3). The physical characteristics of young, fairly mature, and mature coconut fruits differ significantly (p < 0.05) according to the results of the Analysis of Variance (ANOVA) test. The mean major diameter (length) decreases as the coconut matures, wherein T1 had the highest value of 130.96 mm. T2 has the highest mean minor diameter of 116.17 mm and intermediate diameter of 117.48 mm. Flesh thickness was highest in T2 with 4.55 mm. The geometric mean diameter, sphericity, and surface area were also highest in T2, with values 119.66 mm, 0.94, and 45281.18 mm2, respectively, indicating optimal size and shape during the fairly mature stage. Weight components varied, with T2 having the highest mean fruit weight of 1075.32 g and water weight of 467.89 g, and T3 the highest flesh weight (384.82 g), while shell and husk weights were highest in T1, having values of 319.36 g and 2268.76 g respectively, and decreased with maturity. This study underscores the significant differences in the physical characteristics of coconut fruit across different maturity stages, providing essential insights into their growth and development patterns.