Kabacan, Philippines

University of Southern Mindanao

www.usm.edu.ph
Kabacan, Philippines

The University of Southern Mindanao, formerly Mindanao Institute of Technology , is a university in the Southern Philippines. It provides instruction and professional training in the fields of science and technology, particularly agriculture and industry. The university was founded by Bai Hadja Fatima Matabay Plang, an educator and philanthropist. It formally open on October 1, 1954, and achieved university status on March 13, 1978. Its 1,024 hectare main campus is located in Kabacan, Cotabato. The University of Southern Mindanao is one of the four State University and Colleges to achieve excellence in agricultural education and one of the nine to hold Level IV status. Across its 3 campuses USM holds a total of 5, 129.97 hectares of land, mostly for agricultural teaching and reseach. Wikipedia.


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Qing X.,Ghent University | Bert W.,Ghent University | Steel H.,Ghent University | Quisado J.,University of Southern Mindanao | De Ley I.T.,University of California at Riverside
Nematology | Year: 2015

Summary - The nematode diversity in soil and litter was investigated on Mount Hamiguitan, the Philippines, along four eco-habitats from elevations of 75-1600 m a.s.l. A total of 155 and 467 nematodes were identified to 39 and 62 genera from litter and soil, respectively. The nematode assemblages and diversity did not show any relation to eco-habitat or elevation. Bacterivorous nematodes were the most common group (37.5%). Acrobeloides was most abundant from the soil and Aphelenchoides from the litter. Bicirronema hamiguitanense n. sp. is herein described based on morphology, morphometrics and molecular data. The new species has the following diagnostic features: a wide lateral field one-fifth of its body diam. with four incisures forming two ornamented ridges; gubernaculum with proximal thickening; spicules (35-38 μm) and gubernaculum (18-20 μm) longer than B. caledoniense; and with 37 molecular autapomorphies supporting its new species status. The phylogenetic position of the new species within Cephalobomorpha is discussed. © Koninklijke Brill NV, Leiden, 2015.


PubMed | University of Southern Mindanao
Type: Journal Article | Journal: Tropical life sciences research | Year: 2016

Birds are crucial to maintaining the balance of many ecosystems by providing various ecological services. The diversity of birds and their feeding guilds in different land-use types were investigated in south-central Mindanao to elucidate the effect of disturbance and habitat modification on bird communities. Point count method was employed to identify birds in three habitat types: i) agroforests; ii) ricefields; iii) roads and heavily disturbed areas. A total of 1114 bird sightings were recorded that included 33 species of 24 families; of these, 3 were Philippine endemics, and 5 were migrant species. Among all of the habitat types, the highest species diversity was found in agroforests (1/D = 16.148), and the lowest was recorded from roads and heavily disturbed habitats. The species composition of agroforests was more similar to ricefields than to areas with high levels of disturbance, such as roads. The characteristic of the vegetation and the availability of food resources may be vital to the diversity of birds in every habitat as evidenced by the high species richness of frugivores and insectivores in agroforests and ricefields, respectively, where food source is largely available. The observation of Streptopelia tranquebarica was a new record for Mindanao, and it was particularly sighted in ricefields. Therefore, this study indicates that land-use change and modification may alter bird diversity structure, and the maintenance of the vegetation in land-use types as food and resource, and as habitat is essential to the conservation of the native and ecologically-important bird species in south-central Mindanao.


Kumar A.,International Rice Research Institute | Bellafiore S.,IRD Montpellier | Cabasan M.T.N.,Catholic University of Leuven | Cabasan M.T.N.,University of Southern Mindanao | And 4 more authors.
Nematology | Year: 2014

The root-knot nematode, Meloidogyne graminicola, can cause substantial rice yield losses. Understanding the mechanisms of resistance to this nematode species in known resistant rice genotypes may help to improve rice genotypes, aiming at developing and implementing environment-friendly and cost-effective nematode management strategies. Using susceptible and resistant rice genotypes, a comparative analysis of histological response mechanisms was made during two phases of the nematode colonisation: i) root penetration; and ii) subsequent establishment and development by M. graminicola second-stage juveniles (J2). Two types of defence response mechanisms could be distinguished in the resistant rice genotypes. The early defence response consisted of a hypersensitive response (HR)-like reaction in the early stage of infection characterised by necrosis of cells directly affected by nematode feeding. This HR-like reaction was observed only in the M. graminicola-resistant Oryza glaberrima genotypes and not in the M. graminicolasusceptible O. sativa genotypes. The late defence response took place after the induction of giant cells by the J2. Giant cells usually collapsed and degenerated before J2 developed into adults. Structural features of the roots of the susceptible O. sativa showed greater root and stele diam. and cortex thickness than the resistant O. glaberrima genotypes. Desired features of plants with resistance to M. graminicola elucidated in this study can be used for selection of plants for breeding programmes. © Koninklijke Brill NV, Leiden, 2014.


Fernandez L.,International Rice Research Institute | Cabasan M.T.N.,International Rice Research Institute | Cabasan M.T.N.,Catholic University of Leuven | Cabasan M.T.N.,University of Southern Mindanao | And 3 more authors.
Archives of Phytopathology and Plant Protection | Year: 2014

The life cycle of the rice root-knot nematode, Meloidogyne graminicola, was studied in an indoor growth chamber on the susceptible Asian rice cultivar UPLRi-5 at 29/26 and 36/32 °C (day/night temperature) under non-flooded and flooded conditions. Adult females were observed 11 days after inoculation (DAI) at 36/32 °C under non-flooded conditions and at 29/26 °C under flooded conditions. At 29/26 °C under non-flooded conditions, adult females were observed at 13 DAI. Completion of the life cycle from the second-stage juvenile (J2) to the second-generation J2 at 29/26 °C under non-flooded conditions was 20 days, and 19 days at 29/26 and 36/32 °C under flooded and non-flooded conditions, respectively. At 36/32 °C under non-flooded conditions, about one-third more adult females were observed compared with the other treatments but this did not result in more second-generation J2. The number of second-generation J2 was significantly higher (more than 15 times) at 29/26 °C under flooded conditions compared with the other treatments. At 25 DAI (i.e. after the second-generation J2 had been generated), a significant 3.5 fold increase in the number of galls per root system was observed on the plants grown at 29/26 °C under non-flooded conditions compared with the other treatments. © 2013 Taylor & Francis.


Cabasan M.T.N.,Catholic University of Leuven | Cabasan M.T.N.,International Rice Research Institute | Cabasan M.T.N.,University of Southern Mindanao | Kumar A.,International Rice Research Institute | And 3 more authors.
Nematology | Year: 2012

Migration, penetration, development and reproduction of the rice root-knot nematode, Meloidogyne graminicola, in the resistant African rice genotypes TOG5674, TOG5675, CG14 and RAM131, and in the susceptible Asian rice genotypes IR64 and UPLRi-5 were studied and compared. The number of second-stage juveniles (J2) that had migrated horizontally and vertically towards the rhizosphere at 48 h after inoculation was comparable in both resistant and susceptible rice genotypes. Penetration of J2 was significantly lower in the resistant rice genotypes compared with the susceptible rice genotypes at 3 and 7 days after inoculation (DAI). Nematode development in the resistant rice genotypes was slower than in the susceptible rice genotypes. Nematode reproduction was significantly lower in the resistant rice genotypes, which supported fewer eggs per g of roots and eggs per female. A significantly higher percentage of egg-laying females was found in the susceptible rice genotypes. Mature females that had developed in the resistant rice genotypes were significantly smaller than the ones in the susceptible rice genotypes. The resistant rice genotypes had significantly fewer galls than the susceptible rice genotypes. © 2012 Koninklijke Brill NV, Leiden.


Tanalgo K.C.,University of Southern Mindanao | Teves R.D.,University of Southern Mindanao | Salvana F.R.P.,University of Southern Mindanao | Baleva R.E.,University of Mindanao | Tabora J.A.G.,University of Southern Mindanao
Wildlife Biology in Practice | Year: 2016

In the tropics, bats are essential component of many natural ecosystems, through providing various ecological services including pollination and insect pest control, in addition to seed dispersal. Many Philippine bat species roost in caves and underground habitats. However, many caves are disturbed by people exploiting resources for food, recreation, and mineral and guano extraction. Misunderstanding on the importance of bats to the ecosystem is also considered a threat to many cave roosting species. Understanding the conflicts between humans and ecosystems, which provide essential services, is important to maintain ecosystem service provision. A total of 100 local respondents from the village of Pisan, Kabacan North Cotabato in South central Mindanao were interviewed using a semi-structured questionnaire and focus group discussions. Respondents were asked about their views, levels of knowledge, use, interaction, and awareness towards both the caves and bats in their locality. The survey found that most of the respondents are aware of the presence of bats from the caves in their locality. Unfortunately, a large proportion of the respondents noted that bats are hunted in caves for bush meat and trade, and most people perceived bats as a pest to fruit crops such as durian. These are some factors of the extirpation of many bat colonies in caves of south central Mindanao. In general, cave bats are underappreciated species in caves. The unregulated tourism, hunting for bushmeat and trade, and guano extraction is among the threats occurring for both caves and bats in the locality and possibly in other cave sites in the country. Furthermore, the establishment of strong and effective model conservation education programs and the strengthening the participation of local government, academy, and community are essential steps to preserve the current state of cave bats in the area. © 2016 K.C. Tanalgo, R.D. Teves, F.R.P. Salvaña, R.E. Baleva & J.A.G. Tabora.


Busico-Salcedo N.,James Cook University | Busico-Salcedo N.,University of Southern Mindanao | Owens L.,James Cook University
Indian Journal of Virology | Year: 2013

Vibrio owensii is one of the most virulent vibrios known being able to kill crustacean larvae at 102 CFU ml-1. This study describes virulence changes to naïve strains of Vibrio harveyi and Vibrio campbellii when infected with the bacteriophage VOB from a closely related species V. owensii 47666-1. The bacteriophage from V. owensii was induced into lytic phase by using mitomycin C at 100 ng ml-1. One strain of V. harveyi and two strains of V. campbellii from 29 tested containing no prophage were susceptible to lysogenic conversion with VOB. Virulence changes induced in Harveyi clade bacteria included the up-regulation of protein secretion, statistically significant increased haemolysin and chitinase production and increased mortality to nauplii of Penaeus monodon. No change in siderophore production was observed. Bacteriophage VOB is likely to be responsible for some of the virulence factors expressed by V. owensii. As this bacteriophage is able to infect strains of V. harveyi and V. campbellii this phage may contribute to increased virulence of other vibrios in aquaculture and in the natural environment. © 2013 Indian Virological Society.


Agduma A.R.,University of Southern Mindanao | Agduma A.R.,University of the Philippines | Sese M.D.,University of the Philippines
Tropical Life Sciences Research | Year: 2016

The biochemical changes in two Selaginella species namely, S. tamariscina (Beauv.) Spring and S. plana (Desv. ex Poir.) Heiron., as induced by desiccation and subsequent rehydration were explored. Plants were allowed to dehydrate naturally by withholding irrigation until shoot’s relative water content (RWC) reached <10%. After which, dehydrated plants were watered until fully rehydrated states were obtained which was about 90% RWC or more. Desiccation-tolerance characteristics were observed in S. tamariscina while desiccation-sensitivity features were seen in S. plana. Membrane integrity was maintained in S. tamariscina but not in S. plana as evidenced in the relative electrolyte leakage measurements during desiccation phase and the subsequent rehydration stage. Pigment analyses revealed conservation of some chlorophylls and carotenoids during desiccation and reaching control levels following rehydration in S. tamariscina. Very low pigment contents were found in S. plana during desiccation phase and the pigments were not recovered during rehydration attempt. Meanwhile, compatible solute determination showed rise in total sugar and proline contents of desiccated S. tamariscina only, indicating presence of biochemical protection machineries in this species and absence of such in S. plana during dehydrating conditions. These data indicate that one key element for desiccation-tolerance in lower vascular plants is the ability to protect tissues from severe damages caused by intense desiccation. © Penerbit Universiti Sains Malaysia, 2016.


Tanalgo K.C.,University of Southern Mindanao | Pineda J.A.F.,University of Southern Mindanao | Agravante M.E.,University of Southern Mindanao | Amerol Z.M.,University of Southern Mindanao
Tropical Life Sciences Research | Year: 2015

Birds are crucial to maintaining the balance of many ecosystems by providing various ecological services. The diversity of birds and their feeding guilds in different land-use types were investigated in south-central Mindanao to elucidate the effect of disturbance and habitat modification on bird communities. Point count method was employed to identify birds in three habitat types: i) agroforests; ii) ricefields; iii) roads and heavily disturbed areas. A total of 1114 bird sightings were recorded that included 33 species of 24 families; of these, 3 were Philippine endemics, and 5 were migrant species. Among all of the habitat types, the highest species diversity was found in agroforests (1/D = 16.148), and the lowest was recorded from roads and heavily disturbed habitats. The species composition of agroforests was more similar to ricefields than to areas with high levels of disturbance, such as roads. The characteristic of the vegetation and the availability of food resources may be vital to the diversity of birds in every habitat as evidenced by the high species richness of frugivores and insectivores in agroforests and ricefields, respectively, where food source is largely available. The observation of Streptopelia tranquebarica was a new record for Mindanao, and it was particularly sighted in ricefields. Therefore, this study indicates that land-use change and modification may alter bird diversity structure, and the maintenance of the vegetation in land-use types as food and resource, and as habitat is essential to the conservation of the native and ecologically-important bird species in south-central Mindanao. © Penerbit Universiti Sains Malaysia, 2015


Gomez N.,University of Southern Mindanao
International Journal of Climate Change Strategies and Management | Year: 2015

Purpose - This paper aims to assess the vulnerability of the farmer-respondents in Southern Philippines, specifically Region XI and XII, to climate change. Design/methodology/approach - This study conducted an empirical analysis of the impact of climate change on maize (Zea mays), banana (Musa sapientum) and durian (Durio zibethinus) production. Furthermore, it estimated the determinants of adaptation to climate change and its corresponding effect on farm productivity. The analysis used primary data from 541 farmer-respondents producing maize, banana and durian in the 6 provinces and 18 municipalities of the sample areas. Findings - Based on the probit estimate results, farmers adaptation decisions were influenced by information about future climate change conditions, social capital, access to formal extension and farmer-to-farmer extension. The author found from the stochastic frontier estimation in the production function that climate change adaptations exerted a significant impact on farm productivity. It helped in coping with the adverse effects and risk of climate change while increasing agricultural productivities of the farmer-respondents. Originality/value - This research paper will be an addition to the body of knowledge on the socioeconomic aspects on the climate change and adaptation on the production of maize, banana and durian in the case of a developing country like Southern Philippines. This will bring more insights into the adaptation strategies that are crucial to cope with climatic variability and change. © EmeraldGroupPublishingLimited.

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