Violeta S. Panggoy and Lorenza B. de Pedro ABSTRACT The coconut two-colored beetle, Plesispa reichei. Chapuis, underwent 4 developmental stages, namely; egg, larva, pupa and adult. The larval stage had 4 instars with a total developmental period of 49.66 days for the females and 45.11 days for the males. An adult female laid an average …
Biology of the Coconut Two-Colored Beetle, Plesispa reichei Chapuis Read More »
Lydia A. Gloria, Fe C. Abogadie, Carolina M. Bermoy, Felix M. Salas, Ana Gina T. Sembrano and Elizabeth M. Sombilon ABSTRACT The nutrient and protein content of 15 local foodstuffs were chemically and biologically evaluated. Plant proteins were found to be inferior in quantity and quality especially in terms of their protein digestibility and amino …
Chemical and Biochemical Evaluation of Some Local Foodstuffs Read More »
Merlene B. Capuno and Lorenza B. de Pedro ABSTRACT Five mite-based biological parameters were used to determine the effect of the coconut varieties Baybay Tall, Malayan Orange Dwarf (MOD) and MAWA on the biology of spider mite Oligonychus velascoi Rimando. Parameters like total developmental period, fecundity of females and adult longevity indicated that Baybay Tall …
P. Venkatasubbaiah and K. M. Safeeulla ABSTRACT Incorporation of sand in the soil influenced the disease severity of collar rot in coffee while lime significantly reduced the occurrence of the disease. Rice-straw mulching was found to increase the growth and degree of infection of R. solani while exposing the seedbeds without mulching was found unsuitable …
Effect of Cultural Practices in the Control of Collar Rot Infection in Coffee Seedlings Read More »
Alejandro D. Solis and Nelson Esguerra ABSTRACT Eggs of black leafhopper, Ricania speculum Walker, were laid in batches on the nether surface of patola leaves (Luffa clyindrica (L) Roem) and were commonly covered with white mealy secretions. Incubation period of eggs on both detached and undetached leaves lasted 17 days. Total development period ranged from …
Rolinda L. Talatala ABSTRACT The root and shoot elongation as well as the anatomy of IR-36 and RD-19 rice seedlings treated with different concentrations of NA (1,8- naphthalic anhydride), thiobencarb (S-4-chlorobenzyl diethylthlocarba-mate) and NA + thiobencarb was observed. Root elongation in the 2 cultivars was adversely affected by thiobencarb but not by NA treatment. Generally. …
P. Venkatasubbaiah, K.M. Safeeulla and M. Satishchandra Prabhu ABSTRACT In vitro seed treatment with carboxin, carbendazirn, benomyl, guinto-zene. triadimefon and thiophanate-methyl enhanced the percent germina-tion of Coffea arabica and C. canephora. The percentage of seed germina-tion and the relative growth of hypocotyl were closely related to the con-centration of the fungicide used. There were no …
J. R. Pardales, Jr., F.M. Melchor and R.S. de la Peña ABSTRACT Taro (Colocasia esculenta (L) Schott) plants exposed to 28°C water temperature exhibited better plant growth and leaf area development, more and longer roots and higher dry matter content than those grown at other water temperature, i.e., 18-22°C (normal) and 37°C. Inferior vegetative growth …
Effects of Water Temperature on the Early Growth and Development of Taro Read More »