J
J.C O’Toole
Researcher at Rockefeller Foundation
Publications - 10
Citations - 898
J.C O’Toole is an academic researcher from Rockefeller Foundation. The author has contributed to research in topics: Drought tolerance & Upland rice. The author has an hindex of 9, co-authored 10 publications receiving 834 citations.
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Yield response of rice (Oryza sativa L.) genotypes to different types of drought under rainfed lowlands - Part 1. Grain yield and yield components
TL;DR: It is suggested that variations in flowering time, potential yields and drought patterns need to be considered for development of drought-resistant cultivars using specific physiological traits.
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Yield response of rice (Oryza sativa L.) genotypes to drought under rainfed lowlands
TL;DR: Under less severe and prolonged drought conditions, genotypes that could achieve higher plant dry matter at anthesis were desirable and had less delay in flowering, higher grain yield and higher drought response index, indicating the importance of ability to grow during the prolonged stress period.
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Yield response of rice (Oryza sativa L.) genotypes to drought under rainfed lowlands. 2. Selection of drought resistant genotypes
TL;DR: The results indicate that with the use of irrigated-control and drought test environments, genotypes with drought resistance can be identified by using DRI or delay in flowering, however, selections will differ depending on the type of drought condition.
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Screening rice for drought resistance at the reproductive phase
D.P. Garrity,J.C O’Toole +1 more
TL;DR: A mass screening method is proposed that involves staggered planting, interruption of irrigation during the flowering period, visual scoring for spikelet fertility, and regression analysis to adjust for differences in flowering date.
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Rice root morphological traits are related to isozyme group and adaptation
TL;DR: Rice accessions from the International Rice Research Institute (IRRI) germplasm bank were evaluated for root traits of 40-day-old plants grown in soil in the greenhouse, highlighting the wide range of variability for constitutive root traits in rice.