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Strong Sour Tamarind Flavor of Methyl-2,3,4-trihydroxyhexanoate, a new compound isolated from Leaves of Tamarindus indica, L. plays a role in plant defense mechanisms

Volume 34 No. 2 July - December 2012 / By

Suprana M. Biswas,Nabanita Chakraborty and Supriya Chakraborty ABSTRACT Flavoring compounds of plants play a significant role in plant defense mechanism. Compound responsible for strong sour tamarind flavor has been isolated and identified from Methanol fraction of tamarind leaves (TrMF). Chromatographic and spectral analyses of TrMF revealed the compound to be methyl 2,3,4- trihydroxyhexanoate. This compound …

Strong Sour Tamarind Flavor of Methyl-2,3,4-trihydroxyhexanoate, a new compound isolated from Leaves of Tamarindus indica, L. plays a role in plant defense mechanisms Read More »

Managing Rice Residues and Fertilization to Improve Nutrient Use and Productivity of Irrigated Lowland Rice

Volume 34 No. 2 July - December 2012 / By

Michelle B. Castillo1*, Cezar P. Mamaril1, Erlinda S. Paterno2, Pompe C. Sta. Cruz3, Pearl B. Sanchez2 and Rodrigo B. Badayos2 ABSTRACT Two field experiments were conducted in two sites with different soil properties to determine the appropriate management of rice residues coupled with cultural practices, including land preparation and fertilization to improve the nitrogen use …

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Employment Outcomes of Graduates in Selected Higher Educational in Eastern Visayas, Philippines

Volume 34 No. 1 January - June 2012 / By

Jane A. Austero, Pedro T. Armenia and Moises Niel V. Seriño ABSTRACT This study aimed to describe the socio-demographic profile of graduates and determine the major factors that affect employment outcomes of HEI graduates in Eastern Visayas, Philippines. It used secondary data from the graduate tracer studies in 2008, involving 2,097 sample graduates who were …

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Outcomes of Learning Online: The Case of Farmers and Extension Workers in the Philippines

Volume 34 No. 1 January - June 2012 / By

Marjhurhy Ann S. Federicos and Rotacio S. Gravoso ABSTRACT The Philippines is now adopting information and communication technology (ICT) to promote agricultural sustainability and rural development. Among the development programs that apply ICT is the Open Academy for Philippine Agriculture (OPAPA) E-Learning Project by the Philippine Rice Research Institute (PhilRice), the agency mandated to spearhead …

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Genetic Diversity and Inbreeding in a Captive Population the North Persian Leopard (Panthera pardus saxicolor L.)

Volume 34 No. 1 January - June 2012 / By

Ana Marquiza M. Quilicot1 and Roswitha Baumung2 ABSTRACT Information on the degree of inbreeding is very important in the effective management of captive populations of animals in zoos. For the North Persian leopard (Panthera pardus saxicolor), in particular, no report on this aspect is available. This study evaluated the effect of inbreeding on fitness traits …

Genetic Diversity and Inbreeding in a Captive Population the North Persian Leopard (Panthera pardus saxicolor L.) Read More »

Quantification of the Relative Virulence of White Spot Syndrome Virus (WSSV) in the Penaeid Shrimps Litopenaeus vannamei (Boone, 1931) and Farfantepenaeus duorarum (Burkenroad, 1939) by Quantitative Real Time PCR

Volume 34 No. 1 January - June 2012 / By

Rey J. dela Calzada1 and Jeffrey M. Lotz2 ABSTRACT The relative virulence of the China isolate of white spot syndrome virus (WSSV-CN) in the penaeid shrimps Litopenaeus vannamei and Farfantepenaeus duorarum, was assessed by a comparison of 7-d median lethal dose (LD50), survival curve, and mean lethal load after exposure by injection. Shrimps were injected …

Quantification of the Relative Virulence of White Spot Syndrome Virus (WSSV) in the Penaeid Shrimps Litopenaeus vannamei (Boone, 1931) and Farfantepenaeus duorarum (Burkenroad, 1939) by Quantitative Real Time PCR Read More »

Development of In vitro Slow Growth Culture for Yam (Dioscorea alata L.)

Volume 34 No. 1 January - June 2012 / By

Villaluz Z. Acedo and Catherine C. Arradaza ABSTRACT Germplasm collections, the lifeblood of breeding programs, are traditionally maintained in the field. Field genebanks are expensive, subject to genetic erosion, and require several quarantine measures for safe movement of genetic materials. These problems are more serious in long-duration, non-flowering and vegetatively propagated crops like yam. This …

Development of In vitro Slow Growth Culture for Yam (Dioscorea alata L.) Read More »

2-bromo-1-(2-hydroxyphenyl)-3,4-dimethylpentan-1-one: A New Bromo-Compound with Stimulatory Activity Isolated from the Shed Leaves of Teak, (Tectona grandis L.)

Volume 34 No. 1 January - June 2012 / By

Suparna Mandal Biswas ABSTRACT A new Bromo isotopic compound has been isolated and purified from the Methanol Fraction of Teak leaves (MFTk). Chromatographic and spectral analyses (TLC, UV, MS, NMR, and IR) indicated the compound to be 2-bromo-1-(2-hydroxyphenyl)-3,4-dimethylpentan-1-one, in short, BrHPDMP with molecular wieghts 285 and 287. The whole leaf leachate of teak showed strong …

2-bromo-1-(2-hydroxyphenyl)-3,4-dimethylpentan-1-one: A New Bromo-Compound with Stimulatory Activity Isolated from the Shed Leaves of Teak, (Tectona grandis L.) Read More »

Response of in vitro Cultured Palm Oil Seedling Under Saline Condition to Elevated Carbon Dioxide and Photosynthetic Photon Flux Density

Volume 34 No. 1 January - June 2012 / By

Pet Roey Pascual1, Krienkai Mosaleeyanon2, Kanokwan Romyanon2 and Chalermpol Kirdmanee2 ABSTRACT Salt stress elicits various physiological and growth responses of oil palm. A laboratory experiment was conducted to determine the responses of oil palms cultured in vitro under varying salinity levels (0, 85.5, 171.11, 342.21 and 684.43 mM NaCl) to elevated CO2 (1000 μmol CO2/mol) …

Response of in vitro Cultured Palm Oil Seedling Under Saline Condition to Elevated Carbon Dioxide and Photosynthetic Photon Flux Density Read More »

Comparative Performance of Biofertilizers on Irrigated Lowland Rice (Oryza sativa L.)

Volume 34 No. 1 January - June 2012 / By

Michelle B. Castillo and Cezar P. Mamaril ABSTRACT Biofertilizers have been claimed as an alternative source of nutrients for plants in order to increase yield and reduce the inorganic fertilizer use by 50%. Sixteen trials were undertaken nationwide covering the provinces of Ilocos Norte, Isabela, Nueva Ecija, Laguna, Camarines Sur, Negros Occidental, Leyte, Samar, Bohol, …

Comparative Performance of Biofertilizers on Irrigated Lowland Rice (Oryza sativa L.) Read More »

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