BSU RESEARCH JOURNAL Editor in Chief: ...

BSU RESEARCH JOURNAL
Editor in Chief:

Wilma L. Marquez
Lay-out Artist/
Circulation Assistant:

May Flor P. Magciano
Technical Editors:
Referees
Percival Alipit
Rhoda B. Galangco, PhD
Ruth Batani
Assistant Professor and BS Education (BSED)
Inez Gonzales
Program Chairperson
Silvestre Kudan
University of Baguio
Carlito P. Laurean
Janet S. Luis
Atty. Samuel D. Gallardo
Valentino L. Macanes
Legal Officer and OIC-Division Chief
Luciana M. Villanueva
Business Regulation and Consumer Welfare Division
DTI-CAR
Editorial Consultants:

Beatriz S. Malab, MSc

Julia A. Solimen
Associate Professor VI
Vice President for Research
College of Agriculture and Forestry
and Extension
Mariano Marcos State University

Rogelio D. Colting
Teresita F. Marcos, PhD

University President
Retired Associate Professor V (Scientist I)
Mariano Marcos State University
Erlinda C. Palaganas
OUR COVER:
Professor VI
Research and
Institute of Management
University of the Philippines (UP)
Extension
Baguio City
Complex, BSU
Compound, Balili
Road, La Trinidad,
Pepita S. Picpican, MSc
Benguet
Acting Planning Officer and
Regional Technical and Evaluation
Committee (RTEC) Chairman
Photo by: Jamesly T. Andres
DOST-CAR
Instructor I and Head of Training and Outreach
Office of Extension Services

BSU RESEARCH JOURNAL
No. 62 January - June 2009

EVALUATION OF POTATO GENOTYPES GROWN FROM ROOTED
STEM CUTTINGS UNDER MID-MOUNTAIN ZONE
D. K. Simongo, F. D. Gatawa, and G. A. Payangdo

INSECTS ASSOCIATED WITH YACON (Smallanthus sonchifolius Poepp & Endl)
PLANTS IN LA TRINIDAD, BENGUET
Bonie S. Ligat, Sr. and Gemma P. Sabas
PILOT COMMERCIALIZATION OF DEHYDRATED STRAWBERRY PRODUCTS
Jane K. Avila and Lory C. Balaoing
THE IDEAL VEGETABLE ATTRIBUTES BASED ON CONSUMER PREFERENCES:
A CONJOINT ANALYSIS APPROACH
M.K.T. Dagupen, M. A. B. Lubrica, D. D. Tagarino, X. Gellynck,
J. Viaene, B. B. Gumihid
KNOWLEDGE AND PRACTICES OF SAGPAT WOMEN ON
INDIGENOUS HEALING AND REPRODUCTIVE HEALTH
R. S. Batani, M. D. Gapasin, B. Sa-ao, H. Bolislis, G. Taag,
R. Sa-ao, T. Sagandoy, L. Samonte and A. S. Cuyan
RELATIONSHIP BETWEEN CLASS SIZE AND STUDENTS’
ACADEMIC PERFORMANCE
Maria Azucena B. Lubrica, Marcos A. Buliyat,
Rosaline D. Dongbo, and Joel V. Lubrica2

EVALUATION OF POTATO GENOTYPES GROWN FROM ROOTED
STEM CUTTINGS UNDER MID-MOUNTAIN ZONE
D. K. Simongo1, F. D. Gatawa2, and G. A. Payangdo3
ABSTRACT

Rooted stem cuttings of six Potato genotypes; 5.19.2.2, 380241.17, 573275, 676070,
2.21.6.2, and MILUSA, and check varieties Granola and Igorota were evaluated for yield in mid-
mountain zones.

Itwasobservedthatthereweresignificantdifferencesonplantsurvival,height,andweight
of marketable tubers. Genotype 676070 had the highest plant survival of 100%, and Granola had
the lowest survival of only 76%. Genotype 5.19.2.2 were the tallest plants at 75 DAP (28.45 cm).
Genotype 380241.17 produced the highest marketable tuber weight (4.76kg/5m2) with highest
computedyieldof22.36t/ha,andthehighestprofit.Genotypes5.19.2.2,and2.21.6.2produced
comparable yield of 8.83t/ha and 8.2t/ha respectively. Granola produced the lowest yield and
negativeprofit.

Genotype 380241.17, 5.19.2.2, and 2.21.6.2 grown from rooted cuttings are favorable in
mid-mountain zone.
KEYWORDS: potato genotypes, rooted stem cutting, potato genotype evaluation, mid-mountain
zone
1Researcher, Northern Philippines Root Crops Research and Training Center, BSU
2Student of Bachelor of Science in Agronomy
3Adviser, College of Agriculture, Benguet State University, La Trinidad, Benguet

INSECTS ASSOCIATED WITH YACON (Smallanthus sonchifolius Poepp & Endl)
PLANTS IN LA TRINIDAD, BENGUET
Bonie S. Ligat, Sr.1 and Gemma P. Sabas2
ABSTRACT

This study was conducted to identify the different insects and other arthropods that were
found on yacon (Smallanthus sonchifolius Poepp & Endl) plants; to classify these arthropods;
and,todeterminethedegreeofinjuryinflictedbytheinsectsontheyieldoftheyaconplants.

There were twenty nine (29) species of insects, 2 species of spiders and 1 specie of mites
that were found on yacon plants.

Thespeciesofarthropodswereclassifiedaspotentialinsectpests,predators,parasitoids,
and visitors.

The species of chewing insects had a sound (1) to slight (3) injury while the species of
sucking insects had a sound or no injury on yacon plants. Both injuries were observed on the
leaves of the yacon plants.
KEYWORDS: Yacon, insect pests, arthropod, predator and parasitoid.
1Faculty member Department of Entomology,
College of Agriculture, La Trinidad, Benguet
2Research Assistant

PILOT COMMERCIALIZATION OF DEHYDRATED STRAWBERRY PRODUCTS
Jane K. Avila1 and Lory C. Balaoing2
ABSTRACT

Dehydrated strawberry products namely: Infused-dried strawberries, strawberry pinwheel,
and strawberry champoy were pilot tested. Procedures were standardized and a cost and return
analysis was done. Results show that the optimum temperature for drying is 70ºC for 36 hours.
In descending order, the recovery rates for the three products are the following: strawberry
champoy (38%), infused-dried strawberries (33.75%), and strawberry pinwheel (29%). The
Moisture contents after drying were: infused-dried strawberries (3.37%); strawberry pinwheel
(3.70%); and strawberry champoy (4.87%).

Dehydrated strawberry products contain appreciable amounts of energy, calcium,
phosphorusandminimalamountsofiron,proteins,anddietaryfiber.Infused-driedstrawberry
and strawberry pinwheel were rated as “liked very much” while strawberry champoy was “liked
moderately”. All these dehydrated strawberry products show high market potential among
tourists and local market.
KEYWORDS: Strawberry, Dehydrated products, Commercialization, La Trinidad, Benguet
1Manager, Food Processing Center and faculty, College of Home Economics
and Technology, Benguet State University, La Trinidad, Benguet
2Dean, College of Home Economics and Technology, Benguet State
University, La Trinidad, Benguet

THE IDEAL VEGETABLE ATTRIBUTES BASED ON CONSUMER PREFERENCES:
A CONJOINT ANALYSIS APPROACH
M.K.T. Dagupen1, M. A. B. Lubrica2, D. D. Tagarino3, X. Gellynck,
J. Viaene4, B. B. Gumihid5
ABSTRACT

Consumers’ purchase decisions are influenced by the attributes that they attach to the
product. This study was conducted in the major vegetable markets of the Philippines from
April 2005 to April 2007 to understand the relevant attributes and the respective attribute levels
thatconsumersidentifiedwithcarrotsandcabbage.Italsoaimedtoidentifymarketsegments
according to relevant vegetable attributes assigned.

The important product attributes of carrot for consumers, according to order of importance
are: price, origin, freshness, size, and color. Similarly, cabbage consumers gave the highest
importance value to price followed by production method, origin, shape, and freshness.

The market segments were: Cluster 1 – “Origin-sensitive” and Cluster 2 – “Price-conscious”.
Origin-sensitive consumers prefer carrots coming from Baguio-Benguet while price-conscious
consumers prefer a low price of PhP15/kg.

The market segments for cabbage consumers are the: health-conscious and the price and
origin conscious. The former gave the highest utility score to the attribute level organic under
production method indicating that they connect food much more with their well-being. On the
other hand, the latter gave high importance to cabbage with the lowest price of PhP 10/kg and
cabbage originating from Benguet.
KEYWORDS: Conjoint analysis, consumer preference, vegetable attributes
1Director, Institute of Social Research and Development, Benguet State
University
2Department Chairman, Math-Physics-and-Statistics,
College of Arts and Sciences, Benguet State University
3Vice President for Finance, Benguet State University
4University of Ghent, Faculty of Agricultural and Applied Biological Sciences,
Department of Agricultural Economics, Division Agro-Marketing, Coupure
Links 653, B-9000 Gent, Belgium
5Research Assistant

KNOWLEDGE AND PRACTICES OF SAGPAT WOMEN ON
INDIGENOUS HEALING AND REPRODUCTIVE HEALTH
R. S. Batani, M. D. Gapasin, B. Sa-ao, H. Bolislis, G. Taag,
R. Sa-ao, T. Sagandoy, L. Samonte and A. S. Cuyan 1
ABSTRACT

The study looked into the knowledge and practices on indigenous healing throughout
the life cycle of women respondents in barangay Sagpat, municipality of Kibungan, Benguet,
Philippines. Using key informant interviews and group interviews, 23 purposively selected
women were asked on their worldviews on indigenous healing, their knowledge and use of
medicinal plants as well as their practices related to diagnosing, curing, and preventing illnesses.
The perceived effects of indigenous Knowledge on their health and well-being were ascertained
too.

Results showed that women of Sagpat have a wealth of knowledge when it comes to
indigenous healing systems – both homegrown and traditional. The engagement of the services
of traditional healers and the use and propagation of medicinal herbs are being observed among
women respondents. and knowledge of these are also openly being shared through their informal
networks. The belief on traditional healers as litigators for offended spirits to affect a cure is
strong. This is rooted on their views on the causes of ill health and the prevention and cure of
such. Indigenous knowledge on healing is believed to have come from “Kabunian” as a ‘gift’
and one way of transmitting such ‘gift’ is through dreams.

Interesting data also pointed out that throughout the reproductive cycle of women; it is
replete with taboos on food and diet as well as beliefs and practices related to conception up to
thepostnatalstage.Specificallyduringbirthingstage,men’srolefigureasbirthingattendants.
Documented too, were several birthing positions women take and believed to be much more
convenient for the woman than the conventional hospital birthing positions.

The study pointed out that the indigenous and homegrown healing systems are still the
most workable and viable health alternative, in a resource poor setting..
KEYWORDS: Indigenous knowledge; indigenous healing practices, indigenous reproductive
health practices
1Faculty members, Social Sciences department,
College of Arts and Sciences, Benguet State University,
La Trinidad, Benguet

RELATIONSHIP BETWEEN CLASS SIZE AND STUDENTS’
ACADEMIC PERFORMANCE1
Maria Azucena B. Lubrica, Marcos A. Buliyat,
Rosaline D. Dongbo, and Joel V. Lubrica2
ABSTRACT

This study delved into the relationship between class size and students’ academic
performance at Benguet State University, particularly in the Mathematics-Physics-Statistics
Department.Specifically,itaimedto:1)determineifthereisasignificantdifferenceinacademic
performance between students of smaller and bigger class sizes, and 2) determine if there is a
significantrelationshipbetweenclasssizeandstudents’academicperformance.Theperformance
wasbasedontheaverageofthefinalgradesperclassinthegeneraleducationcourses,particularly
Information Technology (for the subject Basic Computer Education), Mathematics (College
Algebra), Statistics (Priciples and Methods of Statistics), and Physics (General Physics 1).

ForeachteacherintheDepartment,thefinalgradesintheclasseswiththebiggestandthe
smallestclasssizeswereusedindeterminingsignificantdifferencesintheacademicperformances
of students in bigger and smaller class sizes.

Results indicated that in Basic Computer Education (Information Technology), one
outoffourteachershadasignificantlylowerstudents’averagegradeforthesmallerclass.In
Mathematics, two out of four teachers had a similar trend. In Statistics, one of two teachers had
significantlylowerstudents’averagegradeforthesmallerclass.ForPhysics,twooutoffour
teachers had the same result.

Incontrast,oneMathematicsteacherhadsignificantlyhigherstudents’averagegradesin
her smaller class. This is also true for one Physics teacher.

However, for each of the four subject areas, and using all the classes of each teacher,
correlationanalysesshowedthatingeneral,therewasnosignificantrelationshipbetweenclass
size and students’ academic performance.
KEYWORDS: Class size and academic performance, class size, academic performance
1Paper presented during the Math Society of the Philippines Annual Convention,
Cagayan de Oro on May 21, 2009
2Faculty members, Math-Physics-Statistics department, College of Arts and Sciences,
Benguet State University, La Trinidad, Benguet

Document Outline