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Articles 1 - 13 of 13
Full-Text Articles in Life Sciences
Disease-Reducing Effect Of Calcium Salts Against Postharvest Diseases Of Mango (Mangifera Indica L. Cv. Carabao) Fruits, Melissa P. Montecalvo, Mary Joy C. Mendoza, Teresita U. Dalisay
Disease-Reducing Effect Of Calcium Salts Against Postharvest Diseases Of Mango (Mangifera Indica L. Cv. Carabao) Fruits, Melissa P. Montecalvo, Mary Joy C. Mendoza, Teresita U. Dalisay
The Philippine Agricultural Scientist
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 …
Allelopathy Of Faba Bean Cover Crop To Durum Wheat Under A Semi-Arid Environment, Oussama Oueslati, Arwa Zammali, Raed Hamdi, Ahlem Dhahri, Chaima Melliti, Moncef Ben Hammouda, Robert Kremer
Allelopathy Of Faba Bean Cover Crop To Durum Wheat Under A Semi-Arid Environment, Oussama Oueslati, Arwa Zammali, Raed Hamdi, Ahlem Dhahri, Chaima Melliti, Moncef Ben Hammouda, Robert Kremer
The Philippine Agricultural Scientist
Problems facing farmers practicing conservation agriculture in the semi-arid zone of Tunisia include appropriate cover crop selection, management of allelopathic effects affecting subsequent crop performance, and influence of seasonal variation on allelopathy expression. Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons. The role of phenols in the expression of such potential was also investigated. Analyses of plant samples at three phenological stages (flowering, fruiting, senescence) revealed that leaves were most inhibitory. Allelopathic potential differed among plant components and phenological stages, with …
Development And Characterization Of Rice Lines Carrying Both Sub1 And Anaerobic Germination Tolerance: Sub1a Does Not Inhibit Ag [Research Note], Georgina V. Vergara, Abdelbagi M. Ismail
Development And Characterization Of Rice Lines Carrying Both Sub1 And Anaerobic Germination Tolerance: Sub1a Does Not Inhibit Ag [Research Note], Georgina V. Vergara, Abdelbagi M. Ismail
The Philippine Agricultural Scientist
Accelerated coleoptile elongation in flooded soils allowed seedling shoots to reach the water surface to maintain gas exchange and CO2 fixation. Rice genotypes with tolerance of flooding during germination (anaerobic germination, AG) exhibited fast coleoptile elongation as an escape mechanism. On the other hand, tolerance of complete submergence during the vegetative stage, conferred by SUB1A, involved growth retardation to conserve energy for maintenance metabolism, with resumption of growth upon de-submergence. Combining genes controlling flood tolerance at these two stages with contrasting mechanisms was necessary in flood-prone areas for protection during germination under direct seeding and during vegetative stage. …
Yield Component Compensation As Affected By Seeding Rates In Dry Direct Seeded Rice, Crisanta S. Bueno, Rene B. Carandang, John Kenneth L. Motilla, Pompe C. Sta Cruz
Yield Component Compensation As Affected By Seeding Rates In Dry Direct Seeded Rice, Crisanta S. Bueno, Rene B. Carandang, John Kenneth L. Motilla, Pompe C. Sta Cruz
The Philippine Agricultural Scientist
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 …
Effects Of Polishing And Cooking On The Phytochemical Properties And Antioxidant Activities Of Selected Philippine Rice Cultivars [Research Note], Rodel M. Bulatao, Charleo S. Zapanta, Maricar B. Castillo, Reniel P. Tubera, Joel R. Salazar
Effects Of Polishing And Cooking On The Phytochemical Properties And Antioxidant Activities Of Selected Philippine Rice Cultivars [Research Note], Rodel M. Bulatao, Charleo S. Zapanta, Maricar B. Castillo, Reniel P. Tubera, Joel R. Salazar
The Philippine Agricultural Scientist
This paper evaluated the effects of different polishing times and regular cooking on the phytochemical properties and antioxidant activities of black rice Brillante, red rice Minaangan, and white rice NSIC Rc 160. Rice samples were polished for 0, 15, 30, and 45 s, and were cooked using their optimum cooking water ratio. The samples were then characterized for their phytochemical properties [total anthocyanin content (TAC), total phenolic content (TPC), and total flavonoid content (TFC)] and antioxidant activities [DPPH-radical scavenging activity (DPPH-RSA) and ferric reducing antioxidant power (FRAP)]. Pearson’s correlation analysis (PCA) was employed to determine the strength of …
Physico-Chemical Characteristics Of Ensiled Cassava (Manihot Esculenta Crantz) And Sweetpotato (Ipomoea Batatas L. (Lam.)) Foliage, And Fermentation Kinetics Of Cassava Silage, Arnel N. Del Barrio, Christian V. Lualhati, Kimberly I B. Turaja, Ralph Jovi B. Saldajeno, Mauricio P. Bayubay Jr, Chesa A. Elenterio, Babylyn T. Salazar, Gerard F. Guadayo, Kamla Zyra G. Lavadia, Menandro M. Loresco
Physico-Chemical Characteristics Of Ensiled Cassava (Manihot Esculenta Crantz) And Sweetpotato (Ipomoea Batatas L. (Lam.)) Foliage, And Fermentation Kinetics Of Cassava Silage, Arnel N. Del Barrio, Christian V. Lualhati, Kimberly I B. Turaja, Ralph Jovi B. Saldajeno, Mauricio P. Bayubay Jr, Chesa A. Elenterio, Babylyn T. Salazar, Gerard F. Guadayo, Kamla Zyra G. Lavadia, Menandro M. Loresco
The Philippine Agricultural Scientist
This study was conducted to determine the physico-chemical characteristics of ensiled cassava (Manihot esculenta Crantz) and sweetpotato (Ipomoea batatas L. (Lam.)) foliage with or without additives molasses and rice bran. Six treatment combinations were from two crop species (cassava and sweetpotato) and three additives (without additive, 10% molasses, and 10% rice bran). The physical (color, odor, texture) and chemical characteristics (pH, total soluble sugars, Flieg point, dry matter, organic matter, ash, crude protein, NDF, ADF, hemicellulose) of the samples were evaluated following standard procedures. Fermentation kinetics of cassava foliage silage and ruminal in situ DM degradability of cassava …
Compositional Properties Of Flours And Starches From The Philippine National Seed And Industry Council-Registered Root Crops, Edgardo E. Tulin, Chinelo M. Cardaño, Anabella B. Tulin, Ma. Theresa P. Loreto, Ea Kristine Clarisse B. Tulin, Ma. Villa N. Yu
Compositional Properties Of Flours And Starches From The Philippine National Seed And Industry Council-Registered Root Crops, Edgardo E. Tulin, Chinelo M. Cardaño, Anabella B. Tulin, Ma. Theresa P. Loreto, Ea Kristine Clarisse B. Tulin, Ma. Villa N. Yu
The Philippine Agricultural Scientist
Based in the Visayas State University, Philippines, the germplasm collection of the Philippine Root Crops Research and Training Center (PhilRootcrops) is home to several varieties that have not been fully characterized for their potential use in the production of functional foods. This study evaluated the compositional properties, amylose/amylopectin ratio, and glycemic index of flour and starches of 10 varieties of cassava (Manihot esculenta Crantz), sweet potato (Ipomoea batatas L. (Lam)), and taro (Colocasia esculenta L. Schott); 8 varieties of yam (Dioscorea alata L.); and 5 varieties of arrowroot (Maranta arundinacea L.), which was the recommended …
Dry Matter Production Of Two Rice Cultivars With Contrasting Root Plasticity Expression Under Different Topographic Conditions Subjected To Soil Moisture Fluctuation, Stella Owusu Nketia, Roel Rodriguez Suralta, Yoshiaka Inukai, Shiro Mitsuya, Mana Kano Nakata, Peter Amoako Ofori, Dinh Thi Ngoc Nguyen, Akira Yamauchi
Dry Matter Production Of Two Rice Cultivars With Contrasting Root Plasticity Expression Under Different Topographic Conditions Subjected To Soil Moisture Fluctuation, Stella Owusu Nketia, Roel Rodriguez Suralta, Yoshiaka Inukai, Shiro Mitsuya, Mana Kano Nakata, Peter Amoako Ofori, Dinh Thi Ngoc Nguyen, Akira Yamauchi
The Philippine Agricultural Scientist
In rainfed lowland rice fields characterized by sloping terrains and the presence of a hardpan in a flat topography, plants are often exposed to soil moisture fluctuation (SMF) stress due to erratic rainfall patterns. Root plasticity is one of the key traits that play important roles in plant adaptation under such conditions. In this study, two contrasting genotypes, KDML105 and IRAT109, were examined to quantify the expression of plasticity in root branching at different positions in the toposequence (TP) and in a flat topography with a hardpan, both without a groundwater table, and subjected to SMF. Results showed that KDML105 …
Exogenous Application Of Growth Regulators Improves The Growth And Quality Of Dahlia Variabilis L., Shahbaz Khan, Naeem Abbas, Zuhair Hasnain, Sami Ullah, Imran Hussain, Afroz Rais, Muhammad Atif Ghafoor, Danish Ibrar, Sohail Irshad, Maham Saddique, Muhammad Amjad Bashir, Samra Naseem, Muhammad Musawir Khan, Jawaher Alkahtani
Exogenous Application Of Growth Regulators Improves The Growth And Quality Of Dahlia Variabilis L., Shahbaz Khan, Naeem Abbas, Zuhair Hasnain, Sami Ullah, Imran Hussain, Afroz Rais, Muhammad Atif Ghafoor, Danish Ibrar, Sohail Irshad, Maham Saddique, Muhammad Amjad Bashir, Samra Naseem, Muhammad Musawir Khan, Jawaher Alkahtani
The Philippine Agricultural Scientist
Dahlia (Dahlia variabilis L.), a bulb crop sold as cut flower, garden ornamental/potted plant, becomes a popular cut flower in the world. This experiment was designed to study the effects of foliar applied gibberellic acid, zinc, ascorbic acid, and thiamine on the growth and flower attributes of dahlia. The study was conducted under greenhouse conditions at the Floriculture Research Area, University of Agriculture, Faisalabad, Pakistan. There were thirteen treatment with three levels each; gibberellic acid, zinc sulphate, ascorbic acid, and thiamine. First, foliar application was done at vegetative stage (after 45 d of transplantation) and second, at the flowering …
Angiotensin I-Converting Enzyme Inhibitory And Antioxidative Activities Of The Bioactive Peptides In The Crude Salt-Soluble Protein Hydrolysates Of Pili Nut (Canarium Ovatum Engl.) Cv. Mayon Kernel, Ella Mae Gamba, Lawrence Yves Uy, Mary Ann Torio
Angiotensin I-Converting Enzyme Inhibitory And Antioxidative Activities Of The Bioactive Peptides In The Crude Salt-Soluble Protein Hydrolysates Of Pili Nut (Canarium Ovatum Engl.) Cv. Mayon Kernel, Ella Mae Gamba, Lawrence Yves Uy, Mary Ann Torio
The Philippine Agricultural Scientist
The in silico enzyme digestion and peptide function annotation of pili nut (Canarium ovatum Engl.) 11S globulin protein sequence revealed the presence of bioactive peptides with antihypertensive and antioxidative activities. Molecular docking simulations showed that the proline-histidine (PH) ligand can better inhibit angiotensin I-converting enzyme (ACE) activity than captopril. This result was verified through biochemical assays. Pili kernel protein was extracted with 0.5 M NaCl buffer using the modified Osborne fractionation method, which yielded 100 mg of protein per gram of defatted pili kernel determined via Bradford assay. SDS-PAGE suggested that the protein extract had a major legumin-like (11S) …
The Use Of Open Data Kit (Odk) In Characterizing The Cacao Industry Sites In Panay Island, Rhea J. Subong-Espina, Reynold D. Tan, Christine Mae D. Hernando
The Use Of Open Data Kit (Odk) In Characterizing The Cacao Industry Sites In Panay Island, Rhea J. Subong-Espina, Reynold D. Tan, Christine Mae D. Hernando
The Philippine Agricultural Scientist
Cacao is one of the world's most valuable export commodities and cash crops. Western Visayas, along with the other regions in the Philippines, has committed to participate in national efforts to strengthen the production capacity of the cacao industry and address prospects and opportunities for the industry growth and development. This paper presents the results of a region-wide study that mapped out and assessed key cacao-producing areas in Western Visayas, specifically Aklan, Antique, Capiz, and Iloilo. The study sought their current production levels, important agricultural properties of farming areas, production densities, and growth potentials. Geospatial data was generated, analyzed, and …
M. ‘Teresita Lantin-Rosario’ And M. ‘Dolores A. Ramirez’ – New Varieties Of Mussaenda [Research Note], Gerlie P. Antesco, Jennelyn C. Bengoa, Maria Luisa D. Guevarra
M. ‘Teresita Lantin-Rosario’ And M. ‘Dolores A. Ramirez’ – New Varieties Of Mussaenda [Research Note], Gerlie P. Antesco, Jennelyn C. Bengoa, Maria Luisa D. Guevarra
The Philippine Agricultural Scientist
An outstanding selections of Mussaenda developed in the Institute of Plant Breeding (IPB), College of Agriculture and Food Science (CAFS), University of the Philippines Los Baños (UPLB) were registered to the National Seed Industry Council as new varieties. These are Mussaenda ‘Teresita Lantin-Rosario’ and Mussaenda ‘Dolores A. Ramirez’, named after an ornamental plant breeder and a National Scientist, respectively, in recognition to their significant contributions in the fields of genetics and plant breeding. Mussaenda ‘Teresita Lantin-Rosario’ is a hybrid and a progeny from a cross between M. ‘Maria Makiling’ and M. ‘Diwata’. The calyx lobes are all petaloid, numerous, and …
Validation Of Newly Designed Ssr Markers For Eight Rice (Oryza Sativa L.) Genotypes With Variable Heat Tolerance Responses Based On Agromorphic Data And Pollen Fertility Analysis [Research Note], Monaliza B. Magat, Norvie L. Manigbas, Jessica D. Rey
Validation Of Newly Designed Ssr Markers For Eight Rice (Oryza Sativa L.) Genotypes With Variable Heat Tolerance Responses Based On Agromorphic Data And Pollen Fertility Analysis [Research Note], Monaliza B. Magat, Norvie L. Manigbas, Jessica D. Rey
The Philippine Agricultural Scientist
Rice is one of the most valuable staple food crops in the world. However, several challenges greatly affect production, one of which is the threat imposed by heat stress. To address this, researchers are developing varieties that are heat stress tolerant with genetic markers aid. In this study, eight rice genotypes, namely Dular, Nagina 22, NSIC Rc 222, Milyang 23, EL15, EL92, EL85, and IR52 were observed for agromorphic data, which included plant height, panicle length, filled and unfilled grains, and grain yield. Flower samples were collected to determine the effect of heat stress on pollen fertility. Molecular markers were …