| α-d-galactosidase deficiency in coconut endosperm: its possible pleiotropic effects in makapuno CV Mujer, DA Ramirez, EMT Mendoza Phytochemistry 23 (4), 893-894, 1984 | 47 | 1984 |
| Chromosomal localization of four isozyme loci by trisomic analysis in rice (Oryza sativa L.) S Ranjhan, JC Glaszmann, DA Ramirez, GS Khush Theoretical and applied genetics 75, 541-545, 1988 | 43 | 1988 |
| Relationship between chlorophyll and carotenoid biosynthesis in dirty-red (green-flesh) mutant in tomato DA Ramirez, ML Tomes Botanical Gazette 125 (3), 221-226, 1964 | 41 | 1964 |
| Coconut α-d-galactosidase isoenzymes: isolation, purification and characterization CV Mujert, DA Ramirez, EMT Mendoza Phytochemistry 23 (6), 1251-1254, 1984 | 37 | 1984 |
| Galactomannan degrading enzymes in maturing normal and makapuno and germinating normal coconut endosperm JL Samonte, EMT Mendoza, LL Ilag, B Norberto, DA Ramirez Phytochemistry 28 (9), 2269-2273, 1989 | 34 | 1989 |
| The cytogenetics of sterility in F1 hybrids of indice x indica and indica x javanica varieties of rice (Oryza sativa L.). LM Engle, TT Chang, DA Ramirez | 34 | 1969 |
| Studies on floral biology, fruit set and fruit development in durian (Durio zibethinus Murr.). RV Valmayor, RE Coronel, DA Ramirez | 28 | 1965 |
| Coconut peroxidase isoenzymes: isolation, partial purification and physicochemical properties CV Mujer, EMT Mendoza, DA Ramirez Phytochemistry 22 (6), 1335-1340, 1983 | 26 | 1983 |
| Modern Biotechnology and Agriculture: a history of the commercialisation of biotechnology maize in the Philippines L Gonsales, E Javier, D Ramirez, F Cariño, A Baria Los Banos, Philippines: Strive Foundation, 2009 | 22 | 2009 |
| Cytological and histological studies of sterility in F1 hybrids of twelve indica-japonica crosses. EG Velasco-Demeterio, S Ando, DA Ramirez, TT Chang | 18 | 1965 |
| The cytology of the developing endosperm of the normal and the mutant (Macapuno) coconut. SSD Cruz, DA Ramirez | 17 | 1968 |
| Geographical patterns of diversity in the Philippine edible yam collection. VMV Cruz, NC Altoveros, MS Mendioro, DA Ramirez | 15 | 1999 |
| Parthenocarpy and apomixis in Lansium domesticum Correa. FA Bernardo, CCJ Jesena, DA Ramirez | 14 | 1961 |
| Cytology of Philippines plants V. Psophocarpus tetragonolobus (Linn.) DC. DA Ramirez | 14 | 1960 |
| Gene introgression in maize (Zea mays ssp mays L.). DA Ramirez | 13 | 1997 |
| The Cytogenetics of F1 Hybrids from Oryza nivara Sharma et Shastry× O. sativa L. RC Dolores, C TT, R DA Cytologia 44 (3), 527-540, 1979 | 13 | 1979 |
| The amount and distribution of carotenoids in the mungbean seed (Vigna radiata Wilczek). TH Harina, DA Ramirez | 13 | 1978 |
| Cytology of Philippine plants: VI. Sandoricum koetjape (Burm. F.) Merr. DA Ramirez | 13* | 1961 |
| The cytology of sterility in F2, F3, and F4 hybrids of indica× japonica crosses of rice (Oryza sativa L.) LM Engle, DA Ramirez, C TT Cytologia 34 (4), 572-585, 1969 | 10 | 1969 |
| Makapuno mutant coconut DA Ramirez | 8 | 1998 |
