A5086396639- Nematode management and characterization studies
- Cassava research and cyanide
- Soybean genetics and cultivation
- Legume Nitrogen Fixing Symbiosis
- Plant Pathogens and Fungal Diseases
- Banana Cultivation and Research
- Plant Pathogenic Bacteria Studies
- Plant-Microbe Interactions and Immunity
- Plant pathogens and resistance mechanisms
- Wildlife Ecology and Conservation
- Mycorrhizal Fungi and Plant Interactions
- Zoonotic diseases and public health
- Transboundary Water Resource Management
- Species Distribution and Climate Change
- Environmental and Biological Research in Conflict Zones
- Plant Parasitism and Resistance
- Conservation, Biodiversity, and Resource Management
- Agricultural Systems and Practices
University of Southern Mindanao
2015-2025
International Rice Research Institute
2012-2018
KU Leuven
2012-2018
Abstract The current state of global biodiversity is confronted with escalating threats arising from human-induced environmental changes and a growing array unpredictable challenges. However, effective conservation efforts are often hindered by limited knowledge, especially in developing economies such as the Philippines. limitations imposed these shortfalls knowledge hamper capacity to protect light continuing extinction crisis. Our study revealed that areas higher conflict levels exhibited...
Human activities have severely impacted many species and ecosystems. Thus, understanding the local biodiversity situation is crucial for implementing effective conservation interventions. Mindanao in southern Philippines home to various unique species, particularly its pristine However, available data terrestrial vertebrates key areas remain incomplete. To address this issue, we synthesized published literature related from 2000 2022 Mindanao. Moreover, analysis used four (amphibians,...
The root-knot nematode, Meloidogyne graminicola , can cause substantial rice yield losses. Understanding the mechanisms of resistance to this nematode species in known resistant genotypes may help improve genotypes, aiming at developing and implementing environment-friendly cost-effective management strategies. Using susceptible a comparative analysis histological response was made during two phases colonisation: i ) root penetration; ii subsequent establishment development by M....
Migration, penetration, development and reproduction of the rice root-knot nematode, Meloidogyne graminicola , in resistant African genotypes TOG5674, TOG5675, CG14 RAM131, susceptible Asian IR64 UPLRi-5 were studied compared. The number second-stage juveniles (J2) that had migrated horizontally vertically towards rhizosphere at 48 h after inoculation was comparable both genotypes. Penetration J2 significantly lower compared with 3 7 days (DAI). Nematode slower than genotypes, which...
The life cycle of the rice root-knot nematode, Meloidogyne graminicola, was studied in an indoor growth chamber on susceptible Asian cultivar UPLRi-5 at 29/26 and 36/32 °C (day/night temperature) under non-flooded flooded conditions. Adult females were observed 11 days after inoculation (DAI) conditions At conditions, adult 13 DAI. Completion from second-stage juvenile (J2) to second-generation J2 20 days, 19 respectively. about one-third more compared with other treatments but this did not...
Abstract Background Fusarium odoratissimum ( Foc TR4) is a devastating fungal pathogen that causes Panama wilt in Cavendish banana, high value crop generates significant revenue. The excessive use of synthetic fungicides for disease control poses risks to both human health and the environment. Consequently, there pressing need eco-friendly alternatives manage this disease. One potential approach utilization biocontrol agents, which have shown promise control. This study aimed evaluate...
Summary Host response of BC 2 F 3 recombinant inbred line (RIL) population derived from a cross between African rice (CG14) and Asian (IR64) genotypes was evaluated in the field quantitative trait loci (QTLs) that confer resistance tolerance to Meloidogyne graminicola were mapped using SSR markers. Of 155 progenies evaluated, 23 resistant six partially based on number second-stage juveniles (J2) per root system J2 g roots. Based yield reduction, identified as tolerant 14 less sensitive M....
Understanding farmers’ perception is important in the development of sustainable and cost-effective integrated pest management strategies. Hence, on rice insect pests pesticide use was evaluated by selected 112 farmers composed 77% males 23% females, over growing areas North Cotabato, Central Mindanao, Philippines. 62% that were interviewed pesticides based presence pests. These identified white stem borer leaf folder as most encountered local crops. Due to these pests, production became...
The rice root-knot nematode (RKN), Meloidogyne graminicola, is an important pathogen affecting production in South and Southeast Asia. Efficacy of resistance tolerance selected M. graminicola-resistant African genotypes TOG5674, TOG5675 CG14 -susceptible Asian IR64 UPLRi-5 were examined under a range initial population densities (Pi) water regimes. Resistance to graminicola resistant was not broken with increasing pressure (Pi = 15,000 60,000 J2/plant). Resistant even tolerant the damage...
Summary Five populations of Meloidogyne graminicola isolated from different rice-growing areas in the Philippines were characterised. The showed little phenotypic variability second-stage juveniles and female perineal pattern. Differences reproduction among M. not observed on mature resistant Oryza glaberrima varieties ‘TOG5674’, ‘TOG5675’, ‘RAM131’ ‘CG14’, or susceptible O. sativa ‘IR64’ ‘UPLRi-5’. In all infected rice varieties, plant growth yield-contributing traits no differences...
The host response of 25 rice genotypes belonging to Oryza glaberrima and sativa Meloidogyne graminicola infection was examined in a hydroponic system. M. can build up high population densities Resistance this nematode species found O. which supported significantly lower numbers per plant unit root than genotypes. graminicola-infected showed higher galling index the system is efficient reliable method examine infection, be useful for fast screening selection graminicola-resistant germplasm...
The effect of different rice-based crop rotation sequences on the population densities Meloidogyne graminicola and yield rice was evaluated in a microplot experiment under lowland field conditions. Ten treatments cropping were grown four successive growing seasons: continuous susceptible cultivar Thihtatyin (rice-rice-rice-rice), 1- season (rice-rice-chickpea-rice, rice-rice-black gram-rice, rice-rice-soybean-rice, rice-rice-cowpea-rice), five 2-season (groundnut-rice-chickpea-rice, green...
The host response to Meloidogyne graminicola infection of 30 advanced breeding lines developed from crosses between high-yielding and drought-tolerant Oryza sativa genotypes was evaluated in outdoor raised beds. None the showed resistance M. comparable graminicola-resistant African rice (O. glaberrima) genotype TOG5674. However, IR86815-23-4-1-2 identified tolerant which no yield reduction even when infected with graminicola. IR82635-B-B-143-1, IR85733-19-4-1-1, IR85733-19-4-2-4,...
Summary The bio-protective effect of a root-nodulating strain (CNPAF 512) the nitrogen-fixing rhizobium, Rhizobium etli , against both sedentary ( Meloidogyne incognita ) and migratory Radopholus similis endoparasitic nematode in common bean Phaseolus vulgaris was examined using an vitro autotrophic tripartite culture system. Two assays were carried out with each species. Each assay consisted two treatments: plants either inoculated rhizobial or remained non-inoculated (control plants). To...