P. Venkatasubbaiah and K.M. Safeeulla ABSTRACT Rhizophere and rhizoplane microflora of coffee seedlings were studied by the dilution plate technique. The number of fungi, yeast and bacteria was higher in the rhizosphere than in the non-rhizosphere and rhizoplane. Rhizoctonia solani, the incitant of collar rot of coffee seedlings, altered the rhizosphere and rhizoplane microflora. The …
Ma. Teofila O. Oben, Andrea C. Matarong and Nelson M. Esguerra ABSTRACT In the small plot trial; diazinon, permethrin, malathion, methyl parathion and endosulfan at the manufacturers’ recommended rates and sprayed 4 times starting at flowering significantly controlled the nymphs of the black leafhopper. Highest yield and net return were obtained in malathion-treated plants. Diazinon …
Roberta Dizon-Lauzon, Roger Roy P. Garana and Linda B. Mabesa ABSTRACT The physico-chemical characteristics of cocoyam flour were evaluated. The fiber, ash and carbohydrate contents of cocoyam flour were higher than those of wheat flour. Gelatinization of the starch fraction was noted to be between 68 and 72°C. Least gelating concentration was optimum at 8%; …
Evaluation of Physio-Chemical Properties of Cocoyam (Xanthosoma) Flour Read More »
Josefina C. Nayga and Ruben M. Gapasin ABSTRACT Sweet potato plants inoculated with scab at 2 and 4 weeks after planting (WAP) were severely infected as shown by deformation of leaves and stunted plant growth. Scab infection also caused early death of main vines. However, this was not observed in plants inoculated at 6 and …
Richard N. McArdle and John C. Bouwkamp ABSTRACT Addition of either cellulose or pectinase mixture to pre-heated sweet potato mashes at the time of yeast inoculation increased ethanol production up to twice that of untreated mashes, possibly by enhancing the post-heating activity of the native amylase and/or by lowering the viscosity of the mash, thus …
Simon, Liliian Dada, Ogunwolu, Emmanuel Oludele, Okoroafor, Eunice and Edache Ernest Ekoja ABSTRACT Roselle, Hibiscus sabdariffa L., is cultivated extensively for food and income generation in Africa, but research on biotic constraints to its production has been scanty. A 48-plot (5m×5m wide each) field experiment laid in randomized complete block design was used to document …
Antonia Cecilia Y. Sandoval and Saloma M. Binoya ABSTRACT A total of 1,233 staff members of rural development and private agencies in Eastern, Western and Central Visayas served as respondents in determining the socio-demographic profile and in-service training needs of rural development workers in the Visayas. Also, 630 client-respondents from 42 municipalities were interviewed to …
Alfredo B. Escasinas, Rodolfo G. Escalada and Mario E. Baliad ABSTRACT Sweet potato yield was not significantly affected by fertilizer application even at the rate of 90-60-60 kg NPK/ha. Similar result was noted in cassava root yield. Fertilizer application in gabi at the rate of 0-60-60 kg NPK/ha resulted in 4.98 t of corms per …
Root Crops-Legumes Rotation at Varying Fertilizers Levels Read More »
Letecia Q. Sarong, Bernadita F. Quirol and Marianito R. Villanueva ABSTRACT Generally, plants that received NPK fertilizer had better stand than those that did not receive either N or K. However, nitrogen had greater influence than potassium on the vegetative growth of the plant, Root formation and yield were significantly improved as the amount of …
Effects of Different N:K Ratios and Levels on Sweet Potato Read More »
Cecile Joy Y. Duatin and Lorenzo B. de Pedro ABSTRACT The biology of the taro planthopper was studied in the laboratory using taro as food. The total developmental periods of the male and female plant-hoppers are ± 30.86 days and ± 31.29 days, respectively. The insect under¬goes five nymphal instars with a duration of 1.31 …
Biology and Host Range of the Taro Planthopper, Tarophagus Proserpina Kirk Read More »