Volume 23 No. 1 January – June 2001

Caesar Joventino M. Tado ABSTRACT The present level of rice mechanization in the Philippines is still insufficient to significantly reduce the cost of rice production and for farmers to attain high level of competitiveness relative to those of neighboring rice-producing countries. Sustained support and a consistent mechanization policy of the government are needed. for agricultural …

Mechanization of rice production in the Philippines: trends and perspectives Read More »

Lemuel M. Diamante ABSTRACT The main objective of the study was to obtain the desorption isotherms of sweetened maturing coconut meat at different temperatures (50, 60 and 70°C). A static gravimetric technique was used for the desorption isotherm determination of the material using a standard procedure. Results revealed that the desorption isotherms of sweetened maturing …

Desorption isotherms of sweetened maturing coconut meat at different temperatures Read More »

Julie D. Tan ABSTRACT Bacteriocins arc natural proteinaceous bactericidal substances produced by certain strains of bacteria and act against some other strains of the same or closely related species. This study was conducted to increase the level of bacteriocin production by Enterococcus faecalis VRE 1492 using selected growth media. Results showed that bacteriocin production by …

Bacteriocin production by Enterococcus faecalis VRE 1492 using different media at varying pH and temperatures Read More »

K.C. Narayanaswamy ABSTRACT The study evaluated the influence of olatiles emanating from crushed leaves of Eucalyptus citriodora Hook. on the growth and development. of uzi fly (Exorista bombycis Louis), a serious endoparasitoid of silkworm (Bombyx mori Exposure of freshly laid eggs of E. bombycis (Louis) to volatiles from the leaves of E. citriodora Hook. for …

Influence of leaf volatiles of Eucalyptus citriodora Hook. on the growth and development of Exorista bombycis (Louis) Read More »

Ricardo A. Esplanada Jr. and Romel B. Armecin ABSTRACT A rapid, non-destructive and precise method for leaf area (LA) determination in two varieties (Inosa and Laylay) of abaca (Musa textiles Nee) was developed from linear measurements. Combining both length (L) and width (W) in the model could predict accurately the actual leaf area of abaca. …

Estimation of leaf area in two abaca (Musa textiles Nee) varieties by regression methods Read More »

S.K. Naskar and Archana Mukherjee ABSTRACT The stability in sweetpotato (Ipomea batatas L.) was evaluated using the methods of Eberhart and Russel (1966), Shukla (1972.) and Francis and Kannenberg (1978). Eight sweetpotato lines along with a check local cultivar were grown for three years in eight environments across Orissa. India. Variances due to genotypes, environments, …

Evaluation of stability in sweetpotato using different methods Read More »

Archana Mukherjee ABSTRACT Micropropagation through axillary shoot proliferation is a simple technique which ensures genetic stability of the propagules. To enhance the rate of multiplication, different doses of sucrose and NaC1 were used for axillary shoot proliferation in sweetpotato. Murashige and Skoog’s basal medium supplemented with growth regulators [NA A (0.5 mg/l) + BA (1.0 …

Effect of NaCl on axillary shoot proliferation in sweetpotato Read More »