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December 2019 – Vol. 102, No. 4

Carica papaya is one of the most economically important fruit crops in the Philippines. Its production has been affected by a disease caused by Papaya ringspot virus (PRSV) and the development of new hybrid varieties is one approach to circumvent this problem. Three new F1 hybrids that are moderately tolerant to PRSV were developed by the Papaya Breeding team of the Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños. The parents of the hybrids were PRSV-tolerant. They also possess desirable characteristics. These new F1 hybrids were tested in a few locations in Southern Tagalog. In addition to moderate reaction to PRSV, ‘Hirang’ (Hybrid 097 x 4172), ‘Liyag’ (Hybrid 5648 x 336), and ‘Timyas’ (Hybrid 4173 x 5648) are prolific bearers of fruits which are sweet and firm, and have juicy flesh. ‘Hirang’ has red-orange flesh while ‘Liyag’ and ‘Timyas’ have yellow to yellow orange flesh. The trees are semi-dwarf and have a thick stem.

{Photographs courtesy of Alangelico O. San Pascual Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, Laguna, Philippines}


List of Articles

Effects of Moringa oleifera Leaf Meal on Plasma Ghrelin and Insulin-Like Growth Factor-1 Levels in Swine and its Potential Role in Improving Sow Productivity
Rainier Kent Emerson B. Gonzales, Izza Rona Abina-Artuz, Christine B. Adiova, Antonio A. Rayos and Renato SA. Vega 

Genotype Differences in Seed Germination and Growth, Pollen Fertility and Fruit Traits of Three Promising Papaya (Carica papaya L.) F1 Hybrids
Pablito M. Magdalita and Alangelico O. San Pascual

SSR Markers for Fingerprinting, Hybridity Testing and Diversity Analysis of Important Varieties and Promising Lines of Papaya in the Philippines
Kharen C. Cimagala, Maribel M. Zaporteza, Arnelyn C. Doloiras-Laraño, Roberta N. Garcia and Evelyn Mae Tecson-Mendoza

Antioxidant Enzyme Activities and Dry Matter of Rice Plant as Affected by Interactions of Lead, Phosphorus and Zinc
S. Mardomi, N. Najafi, R. Reyhanitabar and G. Dehgan

Effects of Hot Air and Vacuum Drying Methods on Drying Kinetics and Some Quality Characteristics of Traditionally Produced Couscous in Turkey
Soner Çelen and Türkan Aktaş

Predictive Modeling for Chickpea Blight (Ascochyta rabiei) Occurrence in Semi-Arid Zone Using Meteorological Data from Faisalabad, Pakistan
Salman Ahmad, Muhammad Aslam Khan, Irfan Ahmad, Ejaz Ashraf, Hafiz Muhammad Aatif, Amjad Ali, Muhammad Ehsan Safdar, Muhammad Zohaib Anjum and Waqas Raza

Morpho-Cultural Identification of Wood-Damaging Fungi in the Historic Baker Memorial Hall at the University of the Philippines Los Baños
Cheek S. Fadriquela and Mark Paul S. Rivarez

Research Notes

Morphological Characterization and SSR-Based DNA Fingerprinting of Cassava (Manihot esculenta Crantz) Varieties Released by the National Seed Industry Council (NSIC)
Grace B. Vinarao, Mariecris Rizalyn R. Mendoza, Neilyn O. Villa, Celia B. Dela Viña, Mary Ann M. Abustan and Antonio G. Lalusin

Infusion of Pineapple (Ananas comosus) Wine with Rangoon Creeper (Quisqualis indica L.) Flower
Audrey Mae V. Orillaza and Baby Richard R. Navarro

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