J. R. Pardales, Jr. ABSTRACT The natural flowering habit of taro was studied in a population comprising of 299 cultivars. The floral biology and the development of fruits and seeds were also determined. Very few cultivars readily produced flowers under natural conditions. Flowering in the field commenced in May and reached its peak in July …
Nerelito P. Pascual ABSTRACT The impact of small-scale communal irrigation project on income distribution was determined among factors of production, among earners, and across households. Farm survey data from Quezon Province, Philippines were obtained and analyzed using the “with-without” and “before-after” project comparative methods. Analysis of the relative factor shares was also made using the …
The Impact of Small-Scale Communal Irrigation Project on Income Distribution Read More »
Dolores L. Alcober ABSTRACT The innovative performance of coconut farmers in Leyte and Southern Leyte was determined. The respondents had an average age of 52 years with an average farming experience of 23 years. Their mean educational attainment was 5 years; average number of household members, 6, and an average annual income of P5,969.47. Majority …
Innovative Performance of Coconut Farmers in Leyte and Southern Leyte, Philippines Read More »
C.A. Eronico, R.G. Escalada and R.M. Trenuela ABSTRACT Storing cuttings of BNAS-51 variety of sweet potato for 15 days caused significant decrease in leaf area index (LAI) during the first two months after planting. However, there were no significant variations in LAI and fresh herbage at harvest. Generally, plants that originated from the unstored cuttings …
Rodolfo G. Escalada ABSTRACT Pruning and intercropping affected plant height and fresh herbage yield of ipil-ipil. Both parameters declined as the crop was cut back periodically. Plant population also compounded the effect. At high plant population, the pruned plants developed thin and elongated stems which reduced herbage yield per plant per unit area. However, the …
A. L. Acedo Jr., E. C. Manoto and O. K. Bautista ABSTRACT The use of ethylene dibromide (EDB) and phostoxin in controlling sweet potato weevil was evaluated. Larvae and pupae were effectively controlled when EDB was used at the rate of 32 ml/cu m. However, phostoxin at 10.5 tablets/cu m was more effective than EDB …
Post-harvest Fumigation of Tubers for the Control of Sweet Potato Weevil Read More »
E. H. Estrada and M. K. Palomar ABSTRACT Two-week old groundnut seedlings (Coronadal variety) were inoculated with rust, Puccinia arachidis Speg. and mottle virus alone or in combination, either simultaneously or a week earlier than the other. Plant height was significantly reduced in plants inoculated with rust a week earlier than the virus but was …
Effect of Rust and Mottle Virus Infection on the Growth and Yield of Groundnut Read More »
Lualhati M. Noriel ABSTRACT Rice seedlings of C-168 cultivar were markedly inhibited by butachlor up to shoot emergence stage while those of IR-36 showed greater inhibition up to the second leaf stage. Treated rice seedlings up to shoot emergence stage have comparatively less weights than the untreated control in both cultivars. Protein synthesis was severely …
O. C. E. Diongzon, Jr. and D. P. Gapasin ABSTRACT The biology of taro hornworm, Hippotion celerio L., was studied in the laboratory. The eggs were laid singly or in groups on the nether surface of the leaf. Incubation period of eggs was from 3 to 5 days with 97% hatchability. The total developmental period …
Ruben M. Gapasin ABSTRACT Pre-plant treatment of different nematicides, in pot experiments, using the manufacturers’ recommended rates had variable effects on the growth of sweet potato and cassava and on the population of Meloidogyne incognita and Rotylenchulus reniformis 4 months after application. Low gall and egg mass ratings were obtained in chemical-treated plants, except those …