Vol. 106, No. 3 (https://doi.org/10.62550/RI0910603)
Mango (Mangifera indica L.) cv. Carabao. This export cultivar, known for its superior taste and quality, has limited marketability and shelflife due to its perishability and susceptibility to postharvest diseases. A study conducted by Montecalvo et al. (2023) explored the disease-reducing effect of generally regarded as safe (GRAS) compounds like calcium salts against stem end rot and anthracnose diseases. Results showed that calcium chloride and calcium carbonate have antifungal activity against the fungal pathogens inciting these diseases. Their control efficacy was comparable with the standard postharvest hot water treatment (HWT) but HWT was more effective in reducing anthracnose disease. Validation studies could indicate their potential benefit as postharvest treatments.
{Photograph courtesy of Ms. Melissa P. Montecalvo, College of Agriculture and Food Science, University of the Philippines Los Banos)
Categories
Articles
Influence of Capacity Building on Nutrition Sensitivity of the Municipal Agriculture Development Plan in Calabarzon, Philippines
Kim Leonard G. dela Luna, Maria Theresa M. Talavera, Leila S. Africa, Clarissa B. Juanico, Nancy A. Tandang, and Marison Felicidad R. Dy
Received: April 22, 2022/ Revised: April 29, 2023/ Accepted: May 08, 2023
https://doi.org/10.62550/DJ041022
To improve the nutrition sensitivity of the Municipal Agriculture Development Plan (MADP) of Calabarzon, a one-group pre-test post-test design quasi-experimental study was conducted involving the Local Agriculture Planners (LAP) of 57 municipalities in the region from March to December 2021. Wilcoxon Paired Signed Rank was used to determine significant differences in the nutrition sensitivity of the MADP and level of knowledge, attitude, and self-efficacy of the LAP before and after the intervention. Binary logistic regression analysis was also performed to model the change in the level of the nutrition sensitivity of the MADP. The LAP's level of knowledge, attitude, and self-efficacy as ...
To improve the nutrition sensitivity of the Municipal Agriculture Development Plan (MADP) of Calabarzon, a one-group pre-test post-test design quasi-experimental study was conducted involving the Local Agriculture Planners (LAP) of 57 municipalities in the region from March to December 2021. Wilcoxon Paired Signed Rank was used to determine significant differences in the nutrition sensitivity of the MADP and level of knowledge, attitude, and self-efficacy of the LAP before and after the inter...
Disease-reducing Effect of Calcium Salts Against Postharvest Diseases of Mango (Mangifera indica L. cv. Carabao) Fruits
Melissa P. Montecalvo, Mary Joy C. Mendoza, and Teresita U. Dalisay
Received: July 24, 2022/ Revised: April 28, 2023/ Accepted: May 05, 2023
https://doi.org/10.62550/GH076022
Mango fruits (Mangifera indica L. cv. Carabao) are susceptible to fungal infection, resulting in postharvest diseases. Chemical pesticides are used for disease management but may have a health impact and are costly. Therefore, alternatives to chemical control are necessary to minimize health risks and losses due to postharvest diseases. This research presented the disease-reducing effect of calcium salts, calcium chloride (CaCl2) and calcium carbonate (CaCO3), against mango stem end rot (SER) (sometimes caused by Lasiodiplodia theobromae) and anthracnose (caused by Colletotrichum gloeosporioides sensu lato). In in vitro assays, mycelial growth of both pathogens was significantly reduced w...
Mango fruits (Mangifera indica L. cv. Carabao) are susceptible to fungal infection, resulting in postharvest diseases. Chemical pesticides are used for disease management but may have a health impact and are costly. Therefore, alternatives to chemical control are necessary to minimize health risks and losses due to postharvest diseases. This research presented the disease-reducing effect of calcium salts, calcium chloride (CaCl2) and calcium carbonate (CaCO3), against mango stem end rot (SER)...
Yield Component Compensation as Affected by Seeding Rates in Dry Direct Seeded Rice
Crisanta S. Bueno, Rene B. Carandang, John Kenneth L. Motilla, and Pompe C. Sta Cruz
Received: May 18, 2023/ Revised: August 23, 2023/ Accepted: August 25, 2023
https://doi.org/10.62550/EN052023
Sustainability of the transplanted and flooded rice system is threatened by water and labor availability in many Asian countries including the Philippines. Dry direct seeding instead of transplanting is evolving as a viable crop establishment option to deal with labor and water shortages. Two experiments from July 2020 to June 2021 were conducted to determine the effect of different seeding rates [20 kg ha-1 (SR20), 40 kg ha-1 (SR40), 60 kg ha-1 (SR60), and 120 kg ha-1 (SR120)] on the growth, grain yield, and yield components of 2 rice varieties that were established through direct seeding in dry tilled soil and subsequently grown under flooded conditions. Seeding rates of SR40, SR60, and...
Sustainability of the transplanted and flooded rice system is threatened by water and labor availability in many Asian countries including the Philippines. Dry direct seeding instead of transplanting is evolving as a viable crop establishment option to deal with labor and water shortages. Two experiments from July 2020 to June 2021 were conducted to determine the effect of different seeding rates [20 kg ha-1 (SR20), 40 kg ha-1 (SR40), 60 kg ha-1 (SR60), and 120 kg ha-1 (SR120)] on the growth,...
Digestible and Metabolizable Energy in Ground Yellow Corn, Rice Bran, and Copra Meal Fed to 10 to 15 kg Philippine Native Pigs (Benguet Strain)
Mary Arnel D. Garcia
Received: January 05, 2023/ Revised: March 02, 2023/ Accepted: March 23, 2023
https://doi.org/10.62550/AAB002023
The experiment was conducted to determine the digestible energy (DE), metabolizable energy (ME), and apparent total tract digestibility (ATTD) of gross energy in ground yellow corn, rice bran, and copra meal when fed to Philippine native pigs. Nine barrows with an average initial bodyweight of 10 kg and ages ranging from 60 to 75 d old were housed individually in metabolism crates and randomly allotted to a triplicated incomplete 3 × 2 Latin square design with three diets and two periods. A corn-based diet containing 94.89% yellow corn and two diets containing 66.42% yellow corn and 30% rice bran or copra meal were fed to the native pigs for 10 d, which included a 5 d adaptation period an...
The experiment was conducted to determine the digestible energy (DE), metabolizable energy (ME), and apparent total tract digestibility (ATTD) of gross energy in ground yellow corn, rice bran, and copra meal when fed to Philippine native pigs. Nine barrows with an average initial bodyweight of 10 kg and ages ranging from 60 to 75 d old were housed individually in metabolism crates and randomly allotted to a triplicated incomplete 3 × 2 Latin square design with three diets and two periods. A c...
Alternate Day Feeding as a Cost-effective Strategy for Tank Culture of the Pacific Shortfin Eel Anguilla bicolor pacifica
Frolan A. Aya, John Carlo L. Unida, Maria Rowena Romana-Eguia, and Nerissa D. Salay
Received: November 21, 2022/ Revised: February 19, 2023/ Accepted: June 06, 2023
https://doi.org/10.62550/KK111022
There is a growing interest in the aquaculture of tropical anguillid eels as an export commodity. However, studies on feeding strategies, and the present demand to reduce feed costs need to be addressed to ensure the economic viability of eel farming. In this study, the effects of daily (DF) and alternate day (ADF) feeding on growth, feed utilization, body composition, blood chemistry, liver and intestinal morphology, and economic viability in the Pacific shortfin eel Anguilla bicolor pacifica were examined. Each feeding group of 30 elvers (166.25 ± 16.23 g mean initial wt) were randomly stocked in triplicate 4 m3 outdoor concrete tanks. These were fed for 155 d with formulated eel powder...
There is a growing interest in the aquaculture of tropical anguillid eels as an export commodity. However, studies on feeding strategies, and the present demand to reduce feed costs need to be addressed to ensure the economic viability of eel farming. In this study, the effects of daily (DF) and alternate day (ADF) feeding on growth, feed utilization, body composition, blood chemistry, liver and intestinal morphology, and economic viability in the Pacific shortfin eel Anguilla bicolor pacific...
