Technology/Information Identified for Dissemination/Promotion/ Commercialization
(Excerpts from the Regional R&D Symposium FY 2002)

Identification of Virus-Like Diseases Infecting Chayote by Symptomatology, Spectrophotometry and
Transmission Electron Microscopy

Julio S. Ligat, Benguet State University

Summary/Description

The artificially inoculated and naturally infected chayote leaves were diagnosed at the Department of Plant Pathology Laboratory, Benguet State University. Further studies as in the purification of the virus were done at the Virology Laboratory, Department of Plant Pathology, UPLB; transmission electron microscopy at Biotechnology Laboratory; and, spectrophotometry at the Virology Laboratory, International Rice Research Institute, Los Baños, Laguna. The study was conducted to document symptoms of virus-like diseases in naturally-infected and artificially –inoculated chayote; purify the virus-like pathogen; and, confirm the identity of purified antigen by spectrophotometry and transmission electron microscopy.

Based on the findings of the study, the chayote leaf samples (artificially-inoculated and naturally-infected) were infected with chayote mosaic virus, a tymovirus as confirmed by symptomatology, spectrophotometry, and transmission electron microscopy.

It is therefore recommended that further purification and other molecular virological activities as western blot, hybridization, sequencing and immunological assays be done to confirm the true identity of the virus on strains or relation to other tymovirus group. Proper disease management should be employed to avoid further dissemination of chayote mosaic virus within the area or nearby plantation of chayote.


Inter-agency Agricultural Extension Delivery Project in Linusod, Beckel, La Trinidad, Benguet
Janette C. Visayan, ATI-CAR

Summary/Description

Through the inter-agency project, efforts are concerted, focused and resources are maximized. The Inter-agency Agricultural Extension Delivery Project in Linusod, Beckel, La Trinidad, Benguet came to be through the spirit of volunteerism by the Benguet State University, Land Bank of the Philippines, Agricultural Training Institute-Cordillera Administrative Region, National Irrigation Administration-Benguet, Department of Agriculture, Department of Agrarian Reform, Highland Agriculture and Resources Research and Development Consortium and the Magsasaka Siyentista and the Local Government Unit of La Trinidad, Benguet.

In August 1999, the agency heads of BLAD (BSU Extension Department, Land bank of the Philippines, La Trinidad Branch, Agricultural Training Institute Center and the Department of Agrarian Reform Benguet) decided to form themselves into a volunteer group that would share resources and deliver extension services together in order to create an impact on the lives of the farmers. The four offices cater to the same clientele and with the limited resources from the four offices, the impact of services rendered will be very minimal if they were to act individually as compared to putting all the resources together.

The Volunteer Group’s concern, their working harmony and the spirit of volunteerism has brought them together to help build the future of the Linusod Multi-purpose Cooperative. Through the developed research on chrysanthemum production and the appropriate extension delivery system the Linusod farmers have products that are competitive and that they themselves are also competitive thus farmers are economically stable.


Inflow and Outflow of Major Highland Vegetables in Baguio City (Entry/Exit Points)
Beverly T. Pekas, Magdalena T. Wanawan, Jerry N. Damoyan, Cipriano G. Santiago, Anthony D. Bantog, Patricio A. Ananayo, Pansy Kary Piluden, DA-CAR

Summary/Description

Farmers from Benguet and Mountain Province rely on the vegetable industry as their source of income. While they have aggressively produced highland vegetables using appropriate technology coupled with the favorable climate that make vegetable production a profitable venture, they have been able to fully realize expected profits based on “tsamba-tsamba” only due to fluctuations in prices and supplies. Compounded by these is the lack of organized and scientific strategies or decisions. If there are available data, it is perceived to be unreliable. As such, farmers are at the mercy of traders or middlemen who dictate their prices. At other times, the farmers produce so much of a particular commodity at a time when that commodity commands a very low price.

The results show that for the period covered (January to December 2001), the total inflow volume of vegetables brought in to Baguio City was 137,382 tons. The bulk of vegetables brought in was cabbage (41,446 tons) followed by potatoes (30,933 tons). The least volume shipped in was beans (2,718 tons). Fig. 1 illustrates that the major source of these vegetables was Buguias (17%) followed by Atok (12%) and the least volume came from Bokod (1%). The other sources were Mankayan (12%), Mt. Province (11%), Kibungan (10%), Bakun (8%), Kabayan (7%), Kapangan (7%), Tublay (7%), La Trinidad (4%), Tuba and Itogon (2% each) and Bokod (1%).

For the inflow trend, there was an influx of major highland vegetables in Baguio City during the months of March (16, 925 tons), April (17,151 tons) and May (1,6911 tons). While there was least inflow volume during the month of August (7,346 tons), there was just ample rainfall during the months of February to May (39.5 mm – 291 mm), thus favoring vegetable production while there was heavy rains from June to September aside from the strong storms that visited the production areas.

For the inflow trend of beans, the greatest volume of beans was brought in during the months of March (439 tons), April (392 tons) and May (338 tons). The least volume of beans was brought in during the months of August (80 tons). Majority of farmers start planting during the months of February until April so consequently the bulk of harvest is during the months of April to June. For the second cropping, they start planting from October to November thus, there is also a high volume during the months of December and January. There was least production during the month of August as it is a rainy month and the months (June to July) preceding it are also rainy months. Typhoon also visit the production areas during the months of June to September.

For the outflow months trends, the bulk of vegetables was shipped out during the months of March, April, may (74,781 tons) followed by December (90-41 tons). The least volume was shipped out last August 2001 (3,685 tons). This is so since bulk of the inflow and thereby production was during the months of March, April, May and December 2001. There was heavy rains during the months of June, July and August which was affected vegetable production, thus the low outflow volume. An increase in the inflow volume results to an increase in outflow volume.

The retail prices were much higher than the wholesale price which indicates that traders have more profit than farmers.


Evaluation of Livestock and Poultry for Agroforestry Systems in the Highlands
Sonwright B. Maddul, Benguet State University

Summary/Description

Rabbit and Muscovy duck productivity were evaluated as separate components of different agroforestry systems in Benguet. Study 1 showed that rabbits reared in cages an on range systems had similar performances. Results indicate the potential of raising rabbits to utilize undergrowth vegetation in Benguet pine stands as feed. Study 2 also found positive results from integrating Muscovy ducks with rice and vegetable crop productivity.

Study 1. Rabbit Production as Component of Agroforestry
The mean gestation period for all experimental does was 30.13 days. Litter size at birth and at weaning was similar for all does in the cage and range systems. The overall mean litter size at birth was 6.25 and at weaning 4.63.
At the weaning age of 6 weeks, litters produced in outdoor cages 738.23 g and on the range without burrows (866.88g) were significantly heavier than those raised indoors (586.5 g) and in burrows (631.00g).
Preliminary results show promising potential for raising rabbits on the range, especially with surface shelters and burrows. This system can provide a better environment for the rabbits raised at household level.

Rabbit manure, has 2.4% nitrogen and 1.4% phosphoric acid which are relatively higher than those animal manures. Its potash content of 0.6% is comparable with those of other animals except goats and sheep. Moreover, rabbit manure is not hot during decomposition. Thus, it is only animal manure that will not burn plants.
It was calculated that 15 does, two bucks and their litters will produce approximately 1 ton of rabbit manure in one year.


Study 2. Muscovy Duck Production as Component of various Agroforestry Systems

Ducks fed with rice bran (Ration I) gained the most and were the most efficient in feed conversion. Those given either white (Ration II) or brown wheat bran (Ration III) had similar gain in weight and feed efficiency. However, carcass yield was not significantly different between ducks fed rice bran-based ration and those on brown wheat bran ration. In order to produce a kilogram of duck, white wheat bran ration required the highest cost of feed.
Water pond resulted in heavier weights of Muscovy ducks, especially the black strain, than if no pond was provided. This means that raising ducks with water pond in an agroforestry farm improves their gain in weight. The experiment also showed that ducks with pond were more efficient in converting feed into body weight than those without pond. Consequently, feed cost to produce a kilogram of duck was significantly reduced with the provision of water pond. Although carcass yield was not affected by treatments, the farmer-cooperator was very delighted that his ducks were satisfied swimming in the water ponds.
It is concluded that rabbits and Muscovy ducks can be integrated in a rice and vegetable-based agroforestry systems in Benguet. For proper monitoring and management, rabbits should be confined in cages made of welded wire mesh. As an alternative to this conventional system of rearing, rabbits can be kept on the range, especially with burrows, to cut on labor cost. Range rearing also provides the rabbit an environment similar to their natural habitat.


Sitio Electrification Utilizing the Micro-Hydro Generator, Micro-Hydro Load Stabilizer and Excess Electrical Energy Absorber
Engr. Danilo C. Falgui, Kalinga Apayao State College

Summary/Description

The Sitio Electrification is a newly coined word that aims to reach out to the really poor people in every remote communities, which are small and detached. The micro-hydro electric generator installation does not need a powerhouse, penstock and it is easily maintained, cheap and readily available in the market.
The Micro-Hydro Electric Load Stabilizer is an electric apparatus for providing an almost constant load for the micro-hydro electric plants, micro-hydro electric generators, generators sets and wind turbines.

Significant Impact/Effect of the Program/Activity

a. Product Marketability

With the conduct of the Barangay Electrification Program of the Department of Energy and the Department of Science and Technology, most of the bigger renewable sources of energy like the micro-hydro power plants have already been built. But most of the remote areas cannot be benefited by the program because of the absence of enough energy sources to be used for the micro-hydro electric plants. However, areas with smaller potential water energy sources can now be served electricity by using the Micro-hydro Electric Generator, which is a low capacity and low head turbine-driven generator. Hence, the Sitio Electrification Program can now reach those areas that cannot be reached by the Barangay Electrification Program.
All the raw materials needed for the project is locally available in huge volumes. The Philippine Electronics Industries (PEI) currently markets the Micro-Hydro Electric Generator. This researcher and Mr. Alrin Falgui (student from TNHS and son of the researcher) locally fabricates the Micro-Hydro Load Stabilizer and the Excess Electrical Energy Absorber. The cement, steel roads, electric posts and other accessories are locally available.

b. Economic Significance

With the use of the Load Stabilizer and the Excess Electrical Energy Absorber, the excess energy will be used to charge a battery. Excess energy is available when few household lamps are in use, e.g. from 9:00 pm to 5:00 am when the people are asleep. Income could be derived from battery charging, which in turn will be used by other distant household for electricity at night thus “extending” the capacity of the micro-hydro electric generator. The battery could be connected to an inverter to convert the electricity to 220 volts alternating current, which will be used by other income-generating activities.
This successful extension project has taken the attention of the Department of Energy. The Department of Energy has considered the completed project at Sitio Patiking as a model unit. It has requested for technical assistance for the installation of 28 units at the Municipality of Calanasan, Province of Apayao. Two units of the MHG will be also be installed at Mayaoyao, two units were installed at the Cavite State University. Another two is currently being installed at Sitio Patiking of Tabuk, Kalinga. This extension project has introduced many innovations, which this researcher wants to keep secret lest the commercial prospects be sacrificed.


Community-Based Micro – Hydro Power Generation Project
ARANIAS, Josephine A., BUENAFE, Menandro B., DEPONIO, Melchor P., Department of Science and Technology-Abra

Summary/Description

The project was piloted and demonstrated at Dulao and Gacab, Maligcong, Abra from January 1996 to April 2000. It was jointly funded by the PCIERD-DOST, DOST-CAR, and the Provincial Government of Abra and implemented by the Diocese of Bangued, DOST-CAR-PSTC-Abra, Pangasinan State University, De La Salle University, Municipality of Maligcong and Barangay’s Dulao and Gacab with their contributions ranging from financial support, technical expertise and labor counterpart.

The 7.5 kW micro-hydro power plant at Dulao, Maligcong now provides electricity to forty-eight (48) households, allowing every house with 40 watts of power for lightning during low flows and maximum of 160 watts during peakflows. In addition, each house has a convenience outlet for radio and stereo plugging, and battery charging. The village was also provided with five streetlights at 100-watt bulb each. Likewise, the church was installed with two 20-watt flourescent lamps while the barangay hall has two 100-watt incandescent bulbs and a convenience outlet. Aside from lighting the plant mechanically drives a rice-mill. The management of the power plant was turned over to the community.

While the 20 kW power plant at Gacab, Maligcong provides electricity for rice milling and lighting of eighty (80) households, the barangay hall, the church and pathways around the community. The management and operation of the micro-hydro power plant was turned over to the Banagan Micro-Hydro Multipurpose Cooperative in Gacab, Maligcong, Abra.

Significant Impact / Effect of the Program:

A) POVERTY ALLEVIATION

1) Generation of Employment – The establishment and growth of Cottage industries like Furniture Shops, Welding and Iron Works Shops, Loom Weaving and other handicraft have spurred economic activities.
2) Increased of Farm Income – There are additional farm activities and labor distribution like construction of Fishponds in the adjacent farm areas, two cropping and planting of vegetables to their rice fields after first cropping. This was made possible through the ready supply of irrigation water during daytime.
3) Increased Family Savings – This was realized with the low cost electric bills, rice milling and other agricultural products processing. Aside from this low billing, they are saving their money for transportation in buying kerosene and have reduced the hauling cost of provisions from Bangued.
4) Provision of Electrical Lighting to Houses and Path-lights around the Community – The advantage of Micro Hydro Power over the grid connection is the avoidance of brownouts, power disruptions and the additional payment of PPA.

B) PEOPLE EMPOWERMENT

1) Develop a Self-Reliant Community – Community- based projects like this would enable the Barangay leaders and the people to manage, handle, and decide for themselves the policies, rules and regulations on the operation and maintenance of the project.
2) Develop a Sustainable Agriculture – The irrigation component of the project is a facility that has developed interest of the people on entrepreneurial projects like planting of high value crops, fruit trees, Agro-forestry and on the improvement of pasture areas in the community.
3) People are more Responsive and Innovative – The people received timely information through their transistor, radio or television and thus are updated with news reports or current events, weather forecasts, etc.

Through the use of handled radio, it could help facilitate communication and escape the rigors or delay of transportation caused by slides and flooding within the road networks.

There was an observed change of attitudes and perceptions of the people towards conservation of nature and awareness of environmental issues.


Management of Leafminer on Selected Crops
Lita M. Colting, Bonie S. Ligat, L. B. Mang-oy and Casiano S. Pagadan, Benguet State University

Summary/Description

This is a three-year project (2002-2005) to develop and package an integrated management strategy against Potato Leafminer (PLM) on high value vegetables and avoid an outbreak, as was the case on potato in 1999.

One cropping season (January to May, 2002) was done on bush bean, garden pea and lettuce at the Balili Experimental Farm of Benguet State University, La Trinidad, Benguet.

Promising varieties, insecticides and yellow sticky trap (YST) were identified. The monthly fluctuation on the pest population is shown.


Coir Dust Combined with Rooting Hormones Enhance Rootings of Coffea arabica Cuttings
Avelina M. Galacio and Josephine B. Ayban, Bureau of Plant Industry-BNCRDC

Summary/Description

The study was conducted from February to April 2002, which aimed to evaluate effectiveness of different rooting media for arabica cuttings and identify the most effective rooting hormone and the best rooting medium for arabica cuttings.

Clonal cuttings as propagation technique reproduce true to type generation of planting materials. The conventional method of propagation with the use of seeds requires a minimum of four years from germination to berry production. On the other hand, rooted cuttings can produce berries in 18 months after transplanting. Moreover, there is an increasing interest in the mass propagation of coffee seedlings throughout the country because of the expanding growing areas and the rehabilitation of old coffee plantations. However, studies on the use of rooting hormones and appropriate rooting medium which initiate early rooting of cuttings and hasten seedling growth and development is limited, hence the technology is recommended.

Hormex solution and Indole Butyric Acid (IBA) were both effective in the root initiation and root development of cuttings of Coffee Arabica. Furthermore, coir dust alone used as a medium for sticking Coffee Arabica cuttings had initiated rooting of the cuttings by 19 days compared to the control (garden soil) which rooted in 37.75 days from sticking. This was attributed to the porous characteristics of coir duct and the good water holding capacity of ht medium which enhanced root initiation and development.


Management of Clubroot in Crucifers Using Microbial Antagonist, Lime and PCNB
Luciana M. Villanueva, Bernard S. Tad-awan and Alfonso O. Fagcayang, Benguet State University

Summary/Description

Clubroot caused by Plasmodiophora brassicae Wor. is the most destructive disease of crucifers worldwide. It causes substantial yield loss that could range from 5-10% during rainy season to as high as 100% during dry season. From among the various techniques employed to manage this disease, biological control is the newest. It involves the use of antagonistic microorganisms that either directly or indirectly control the clubroot pathogen.

The study was conducted at BSU experimental Station, Balili, La Trinidad, Benguet to validate the efficacy of the three microbial antagonists against clubroot when applied alone or when integrated with lime and sub-lethal dose of Pentachloronitrobenzene (PCNB).

Clubroot infection was significantly reduced when microbial antagonists were integrated with lime and sub-lethal dose of PCNB. Similarly, yield was significantly higher in plants applied with microbial antagonists than in the untreated control.

Return on investment (ROI) was highest using Paecilomyces sp. followed by Pseudomonas sp. alone; lime; Flavobacterium sp. and sub-lethal dose of PCNB; and PCNB alone with 137.03; 124.26; 105.09; and 101.07%, respectively. The use of such integration is cost-effective, easy to mass produce, and safe to apply. This technology will prevent the development of resistance when rotated in control program with compatible chemicals.

Treatments using Flavobacterium sp., Pseudomnas sp., and Paecilomyces sp. and integrated with lime and sublethal dose of PCNB gave the least number of wilted plants
Significant reduction in clubroot infection was noted when microbial antagonists were integrated with lime and sub-lethal dose of PCNB.
Yield was significantly higher in plants applied with microbial antagonists than in the control.
Return on Investment (ROI) was highest using Paecilomyces sp. alone followed by Pseudomonas sp. alone, lime, Flavobacterium sp, + sub-lethal dose of PCNB, and PCNB alone with 137.03, 124.26, 105.09, and 101.07%, respectively.
The microbial antagonists, namely: Flavobacterium sp., Pseudomonas sp., and Paecilomyces sp. when integrated with lime and sub-lethal dose of PCNB are effective for the management of clubroot infection in Chinese Cabbage.
The use of such integration is cost-effective, easy to mass-produce, and safe to apply.
This technology will prevent the development of resistance when rotated in control program with compatible chemicals.



         

   
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