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Direct and indirect effects of planting density, nitrogenous fertilizer and host plant resistance on rice herbivores and their natural enemies
Horgan, Finbarr G.; Crisol-Martínez, Eduardo; Stuart, Alexander M.; Villegas, James M.; Peñalver-Cruz, Ainara; Mundaca-Ortega, Enrique; Pérez, Marivic O.; Bernal, Carmencita C.; Almazan, Maria Liberty P.; Fame Ramal, Angelee (2022)In rice ecosystems, seeding densities can be adjusted to compensate for lower nitrogen levels that reduce GHG emissions, or to increase farm profitability. However, density-induced changes to plant anatomy could affect ...
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Heterosis for interactions between insect herbivores and 3-line hybrid rice under low and high soil nitrogen conditions
Horgan, Finbarr G.; Bernal, Carmencita C.; Fame Ramal, Angelee; Almazan, Maria Liberty P.; Mundaca-Ortega, Enrique; Crisol-Martínez, Eduardo (2024)Hybrid rice results from crossing a male-sterile line (the A line) with a pollen doner (the restorer or R line). In 3-line hybrid breeding systems, a fertile B line is also required to maintain A line populations. Heterosis ...
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Heterosis for resistance to insect herbivores in a 3-line hybrid rice system
Horgan, Finbarr G.; Bernal, Carmencita C.; Fame Ramal, Angelee; Almazan, Maria Liberty P.; Mundaca-Ortega, Enrique; Crisol-Martínez, Eduardo (2024)Three-line hybrid rice is produced by crossing male sterile (A line) rice with a fertility-restorer (R line). Fertile lines (B lines) are also required to maintain A line seed for breeding programs. We used a range of ...
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Stem borers revisited: Host resistance, tolerance, and vulnerability determine levels of field damage from a complex of Asian rice stemborers
Horgan, Finbarr G.; Romena, Angelita M.; Bernal, Carmencita C.; Almazan, Maria Liberty P.; Fame Ramal, Angelee (2021)Yield losses from rice stem borers depend on the nature of the rice variety, the timing of attack, and the composition of the stem borer species assemblage. This study uses a range of phenotyping methods to distinguish ...