Archives

2013

Cover Page

Vol 96, No 4 (2013)

ABOUT THE COVER:From the article of Evelyn B. Rodriguez et al. (2013), p. 340–348. Digitized  images  of  duck  embryo  chorioallantoic  membranes (CAMs)  for  quantification  of  angiogenesis  through  image analysis.
Photographs  courtesy  of  Ronaniel  A.  Almeda,  Institute  of Chemistry,  College  of  Arts  and  Sciences,  University  of  the Philippines Los Baños, College, Laguna 4031, Philippines.
Cover Page

Vol 96, No 3 (2013)

ABOUT THE COVER: From the article of Ma. Desiree Belina-Aldemita et al. (2013), p. 308–313 Bignay [Antidesma bunius (L.) Spreng.], which is native to the Philippines and often grows in mountainous areas with a tropical climate, has ovoid-shaped fruits clustered together in bunches of 30–40 small fruits. Each fruit ripens unevenly, so the fruits in a bunch vary in shades of color from greens and yellows to reds and purples. The fruit has a sour taste when immature and a tart but sweet taste when ripe. It is highly nutritious and has antioxidant properties. Red wine from bignay is a good source of phytochemicals and contains high amounts of phenolics, flavonoids and anthocyanins. {Photograph courtesy of Dr. Constancio C. de Guzman, Crop Science Cluster, College of Agriculture, University of the Philippines Los Baños, College, Laguna 4031, Philippines}
Cover Page

Vol 96, No 2 (2013)

ABOUT THE COVER: Pleurotus florida on rice straw-based formulation. From the article of Renato G. Reyes et al. (2013), p. 198–204.{Photograph courtesy of Dr. Renato G. Reyes, Center for Tropical Mushroom Research and Development, Department of Biological Sciences, College of Arts and Sciences, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines}
Cover Page

Vol 96, No 1 (2013)

ABOUT THE COVER: External and internal structures of the pili (Canarium ovatum Engl.) fruit. From the article of Ralph Kristoffer B. Gallegos et al. (2013), p. 66-74. {Photograph courtesy of Engr. Ralph Kristoffer B. Gallegos, Agricultural Machinery Division, Institute of Agricultural Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, College, Laguna 4031, Philippines}

2012

Cover Page

Vol 95, No 4 (2012)

ABOUT THE COVER: Main photo: Unrooted neighbour-joining (NJ) circular-style tree with boot strap values of DNA barcodes for 31 domestic chicken breeds and strains, 25 Philippine red jungle fowls, and 6 Gallus species and subspecies from Genebank based on Kimura two-parameter distances (N = 62; 513 positions; diversity = 75.51 ± 5.17%). Photos below (L-R): Australorp, New Hampshire, SASSO range chicken, Babcock commercial hybrid layer, Camarines native chicken, Blue Cochin bantam chicken, Frost Grey gamefowl, Sweater McGinnis gamefowl, red jungle fowl from Mt. Makiling - Laguna, and red jungle fowl from Mt. Guinatungan - Camarines Norte.From the article of Orville L. Bondoc and Rene C. Santiago (2012), p. 358-369.{Photos courtesy of Dr. Orville L. Bondoc, Animal and Dairy Sciences Cluster, College of Agriculture, University of the Philippines Los Baños, College, Laguna 4031, Philippines}
Cover Page

Vol 95, No 3 (2012)

ABOUT THE COVER: Symplastic transport imaging in the different parts of the bulb of Oriental hybrid lily 'Sorbonne' using 6,5-carboxyfluorescein.(From the article of Shasha Wu et al. 2012, p. 236–245) {Photos courtesy of Shasha Wu, College of Landscape Architecture, Beijing Forestry University, 35 Qinghua East Road, Beijing, 100083, P.R. China; and College of Landscape Architecture and Art, Fujian University of Agriculture and Forestry, 350002, Fuzhou City, Fujian Province, P.R. China}
Cover Page

Vol 95, No 2 (2012)

About the Cover: Fruits (inset) and leaves of jatropha (Jatropha curcas L.). The relationships between a portable chlorophyll meter (SPAD) reading and photosynthetic pigments, nitrogen status and chlorophyll fluorescence variables in leaves of jatropha are reported in the article of Nyi Nyi et al. (2012), p. 139–145. {Photos courtesy of Dr. Weeraphan Sridokchan, Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand}
Cover Page

Vol 95, No 1 (2012)

ABOUT THE COVER: Scanning electron micrographs of rhizobacterial isolates Rh1-MSCO, Rh2-MS-CO and Rh3-MS-CO from sago (Metroxylon sagu Rottb.) palms. (From the article of Phoebe S. Nemenzo et al. 2012, p. 99-105) {Photos courtesy of Ms. Phoebe S. Nemenzo, Department of Biological Sciences and Environmental Studies, College of Science and Mathematics, University of the Philippines Mindanao, Davao City, Philippines}

2011

Cover Page

Vol 94, No 4 (2011)

ABOUT THE COVER: Coral reef in Cantillan, Surigao del Sur showing various species of the staghorn coral Acropora. (From the article of Wilfredo Y. Licuanan et al. 2011, p. 384-400). {Photo courtesy of Dr. Wilfredo Y. Licuanan, Biology Department and Br. Alfred Shields FSC Marine Station, De La Salle University, 2401 Taft Avenue, Manila, Philippines}
Cover Page

Vol 94, No 3 (2011)

ABOUT THE COVER: Color retention of the spray-dried red violet pigment of red dragon fruit [Hylocereus polyrhizus (Weber) Britton and Rose] was evaluated as a function of organic acid additives and storage conditions. From the article of K. K. Woo et al. (2011). Photo Courtesy of Dr. K. K. Woo, Department of Chemical Engineering, Universiti Tunku Abdul Rahman, Jalan Genting Kelang, 53300 Setapak, Kuala Lumpur, Malaysia

Cover Page

Vol 94, No 2 (2011)

About the Cover: Tuber mustard (Brassica juncea var. tumida Tsen and Lee) plant (left), stem (upper right) and pickled product (lower right). From the article of F.B. Chen et al. (2011) pages 124-131. (Photographs courtesy of Dr. F.B. Chen, Maize Research Institute, Sichuan Agricultural University, Yaan, P.R. China; and Fuling Agricultural Science Institute of Chongqing, Fuling, P.R. China)
Cover Page

Vol 94, No 1 (2011)

About the Cover: Market chains and marketing practices were analyzed in a study of the brown rice market in some provinces of Luzon, Philippines in 2009. Charts are from the article of Isabelita M. Pabuayon and Antonio Jesus A. Quilloy (2011), pages 54-65.

2010

Cover Page

Vol 93, No 4 (2010)

Specimens of endemic Philippine silver perch, Leiopotherapon plumbeus (Perciformes: Terapontidae), locally known as “ayungin”, were studied to determine shape variation in their populations through the use of landmark-based geometric more phometrics (From the article of Brian S. Santos et al., p. 406-419).
Cover Page

Vol 93, No 3 (2010)

Lilium `Siberia´, a hybrid cultivar of Oriental Lily grown from bulbs and widely cultivated as a cutflower in China, was used in a study  to understand  the relationship between dormancy release and changes in endogenous abscisic acid, gibberrellic acid, zeatin and indoleacetic acid concentration in the different bulb tissues during the different stages of bulb development.
Cover Page

Vol 93, No 2 (2010)

Some steps in the organic production of black carrot (Daucus carota L.) in Konya, Turkey: Field production (upper left), harvesting (upper right), washing after harvest (lower right) and packing (lower left).
Cover Page

Vol 93, No 1 (2010)

About the Cover: Isothermal images of the vacuum cooling process for cut rose (Rosa hybrida L. cv. First Red) at different times. A, 08:29:24; B, 08:30:09; C, 08:31:44; D, 08:34:34. All images used different temperature scales ranging from red, representing the lowest temperatures, to green, representing the highest temperatures. Temperature unit (°C).

2009

Cover Page

Vol 92, No 4 (2009)

About the Cover: Upper left, different samples of native chicken from China. Upper right, phylogenetic tree showing 52 partial 16S rRNA gene sequences carrying microsatellite locus. Bottom, geographic distribution of different microsatellite structures within 16S rRNA gene.
Cover Page

Vol 92, No 3 (2009)

About the Cover: Centennial Mussaendas: M. 'Emerlinda R. Roman' (clockwise, from top left to bottom right) and M. 'Clara L. Davide' (bottom, left) were released as new mussaenda varieties by the Institute of Plant Breeding, Crop Science Cluster, College of Agriculture, University of the Philippines Los Baños in 2008 and 2009, respectively.
Cover Page

Vol 92, No 2 (2009)

About the Cover: DAPI staining of human colon cancer cells, Col 2. Cells treated with 50 μg mL-1 (79.6 μM) of murihexocin C, isolated from the leaves of Annona squamosa L., at 12 h (A & B) showing cell death characterized by membrane blebs and nuclear condensation. Cells treated with DMSO (C & D), show minimal fluorescence signals. Doxorubicin, which causes DNA damage, at 0.25 μg mL-1 (0.43 μM) induced cell death (E & F) evidenced by fluorescence signals. Figures A, C and E under bright field and figures B, D and F under fluorescence and with DAPI staining.

Cover Page

Vol 92, No 1 (2009)

About the cover: Photos of flowers of  ampalaya (Momordica charantia L.).

2008

Cover Page

Vol 91, No 4 (2008)

About the Cover: (Inset, top): Southern view of the crater of Mt. Makiling, Luzon Island, Philippines. The view encompasses Sipit watershed showing the forest as seen just below the summit. (Below, left): Land use/ land cover and spatial distribution over the geodatabase grids, including the three representative grids used in the study of Nathaniel C. Bantayan et al. in this issue. (Below, right): The sampled GAME units – from grids, quadrants, cells and into squares (c). Note further the precision at granule level (d).

{Photographs courtesy of Dr. Emmanuel Rodantes G. Abraham, College of Forestry and Natural Resources, University of the Philippines Los Baños}
Cover Page

Vol 91, No 3 (2008)

About the Cover: Ilang-ilang (Cananga odorata) flowers and shoot buds and plantlets regenerated in vitro from young leaves of the essential oil plant. The tissue culture of ilang-ilang is described in the article by Lindain et al. in this issue.

Photographs courtesy of Ms. Andrea F. Lindain, Crop Physiology Division, Crop Science Cluster, College of Agriculture, University of the Philippines Los Baños, College, Laguna 4031, Philippines

Cover Page

Vol 91, No 2 (2008)

About the Cover: (Inset) Adult female of Pharnacia magdiwang Lit & Eusebio, sp. nov., a new stick insect species on mango trees from Sibuyan Island, Philippines {Photograph taken by Orlando L. Eusebio; courtesy of the University of the Philippines Los Baños (UPLB) Museum of Natural History}
Cover Page

Vol 91, No 1 (2008)

About the Cover: Corona shape diversity in selected species of Hoya {Photographs courtesy of Dr. Cesar G. Demayo, Department of Biological Sciences, College of Science and Mathematics, MSU-Iligan Institute of Technology, Iligan City, Philippines}

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For more communications and information on this journal, please contact the Editor-in-Chief at TeleFax: +63 049 536 2379, E-mail: pas@mozcom.com, Website: http://www.pas-uplbca.edu.ph/