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Fungicidal Seed Treatment and Foliar Spray in Relation to Rhizoctonia solani Infection in Coffee

Volume 4 No. 4 October – December 1982 / By

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 …

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Effects of Water Temperature on the Early Growth and Development of Taro

Volume 4 No. 4 October – December 1982 / By

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 …

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Effect of Chlorine Sources and Ammonium Sulfate on the Growth of Coconut Seedlings Grown on Four Soil Types

Volume 4 No. 3 July – September 1982 / By

Antonio V. Veloso and Tung Ly ABSTRACT Fertilizer requirements of coconut seedlings belonging to Baybay Tall variety grown on four most Important “coconut soil” types (Palo clay loam, Maasin clay, Gulnbala-on clay and Fara-on clay) in the Island of Leyte were studied. Four fertilizer rates were tried, namely: 30 g (NH4),SO4 + 35 g KCI, …

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Effect of Antioxidants and Fungistatic Agents on Rancidity in Dried Split-Salted Bisugo (Nemipterus taeniopterus Cuvier and Valencienes)

Volume 4 No. 3 July – September 1982 / By

Dennis C. Varron and E.C. Sison ABSTRACT The effects of antioxidants butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and propyl gallate (PG) and fungistatic agents potassium sorbate, sodium propionate and sodium benzoate on the stability of dried bisugo against oxidative rancidity were evaluated using sensory and chemical analyses as indices. Each of the antioxidants and fungistatic …

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Biology of the Greater Spike Moth, Tirathaba rulivena Walker

Volume 4 No. 3 July – September 1982 / By

Lorenza B. de Pedro, Dely P. Gapasin and Lucia M. Maramara ABSTRACT The biology of the greater spike moth Tirathaba rufivena Walker, an important insect pest of coconut, was studied in the laboratory. The Insect underwent 5 larval festers and Its developmental period from egg hatching to adult emergence varied slightly between sexes, the males …

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Time of Naphthalic Anhydride Application and its Influence on Thiobencarb Selectivity in Rice

Volume 4 No. 3 July – September 1982 / By

Rolinda L. Talatala ABSTRACT A greenhouse experiment was conducted to determine thiobencarb (S-4-chlorobenzyl diethylthiocarbamate) toxicity to IR-36 and RD-19 rice cultivars as affected by the time of NA (1,8-naphthalic anhydride) application. Both cultivars responded similarly to time and sequence of NA and thiobencarb application. Application of both NA and thiobencarb at planting was the least …

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Isolation and identification of Acetic Acid and Lactic Acid Bacteria from Tuba and Lambanog Toddy

Volume 4 No. 3 July – September 1982 / By

Jesusito L. Lim and William L. Fernandez ABSTRACT Tuba and lambanog toddy were sampled for identification of acetic acid and lactic acid bacteria using tryptone glucose yeast extract brom-cresol green actidione agar, Beijerinck agar with Andrade’s indicator plus actidione and tomato juice agar plus actidione. Acetic acid bacteria isolated from tuba and lambanog toddy were …

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Life History and Behavior of Eggplant Fruit Borer, Leucinodes orbonalis Guenee

Volume 4 No. 3 July – September 1982 / By

Anita M. Maureal, Ma. Flerida A. Carino, Lualhati M. Noriel and Nelson M. Esguerra ABSTRACT The life history and behavior of the eggplant fruit borer, Leucinodes orbonalis Guenee, were studied in the laboratory with pieces of eggplant fruit as food. The insect had five larval instars, with a total developmental period of 23.45 days for …

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Irrigation Water Management Studies for Rice by Computer Simulation

Volume 4 No. 3 July – September 1982 / By

M.C. Escalante, H.P. Johnson and C. Anderson ABSTRACT A computer simulation model developed using the concept of rotation irrigation was used to estimate the optimal irrigation time interval, determine the effects of subdividing the irrigable area into rotation area on the yield of rice, estimate the maximum area that would give the highest yield and …

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Performance of Taro Under Lowland Condition as Affected by Genotype, Nutritional Status and Population Density

Volume 4 No. 3 July – September 1982 / By

J. R. Pardales Jr., M. R. Villanueva and F. R. Cotejo Jr. ABSTRACT The local taro variety Kalpao performed better than the Introduced variety Big Lehua. Kalpao had higher yield, shorter growing period and was relatively resistant to adverse growing conditions than Big Lehua. Nitrogen was a more Important nutrient than P and K for …

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