Results 11 to 20 of about 1,229 (143)

Something old, something new: Evolution of Colombian weedy rice (Oryza spp.) through de novo de-domestication, exotic gene flow, and hybridization. [PDF]

Evol Appl, 2020
Abstract Weedy rice (Oryza spp.) is a worldwide weed of domesticated rice (O. sativa), considered particularly problematic due to its strong competition with the crop, which leads to reduction in yields and harvest quality. Several studies have established multiple independent origins for weedy rice populations in the United States and various parts of
Hoyos V, Plaza G, Li X, Caicedo AL.
europepmc   +2 more sources

Resistance and susceptibility QTL identified in a rice MAGIC population by screening with a minor-effect virulence factor from Xanthomonas oryzae pv. oryzae. [PDF]

Plant Biotechnol J, 2021
Summary Effective and durable disease resistance for bacterial blight (BB) of rice is a continuous challenge due to the evolution and adaptation of the pathogen, Xanthomonas oryzae pv. oryzae (Xoo), on cultivated rice varieties. Fundamental to this pathogens’ virulence is transcription activator‐like (TAL) effectors that activate transcription of host ...
Huerta AI, Delorean EE, Bossa-Castro AM, Tonnessen BW, Raghavan C, Corral R, Pérez-Quintero ÁL, Leung H, Verdier V, Leach JE.   +9 more
europepmc   +2 more sources

Allelic variation for broad-spectrum resistance and susceptibility to bacterial pathogens identified in a rice MAGIC population. [PDF]

Plant Biotechnol J, 2018
Summary Quantitative trait loci (QTL) that confer broad‐spectrum resistance (BSR), or resistance that is effective against multiple and diverse plant pathogens, have been elusive targets of crop breeding programmes. Multiparent advanced generation intercross (MAGIC) populations, with their diverse genetic composition and high levels of recombination ...
Bossa-Castro AM, Tekete C, Raghavan C, Delorean EE, Dereeper A, Dagno K, Koita O, Mosquera G, Leung H, Verdier V, Leach JE.   +10 more
europepmc   +2 more sources

Development and field performance of nitrogen use efficient rice lines for Africa. [PDF]

Plant Biotechnol J, 2017
Summary Nitrogen (N) fertilizers are a major input cost in rice production, and its excess application leads to major environmental pollution. Development of rice varieties with improved nitrogen use efficiency (NUE) is essential for sustainable agriculture.
Selvaraj MG, Valencia MO, Ogawa S, Lu Y, Wu L, Downs C, Skinner W, Lu Z, Kridl JC, Ishitani M, van Boxtel J.   +10 more
europepmc   +2 more sources

Trends in rice research: 2030 and beyond

Food and Energy Security, Volume 12, Issue 2, March 2023., 2023
We have analysed the trends in rice research in the past three decades in both Asian (Oryza sativa) and African (O. glaberrima) rice, with their impact on rice cultivation. We have also analysed the trends in population growth, rice cultivation, production, price, consumption and varietal release along with their projections for 2030 and beyond ...
A. N. M. Rubaiyath Bin Rahman, Jianhua Zhang   +1 more
wiley   +1 more source

Testes multiambientais na seleção de genótipos de arroz utilizando o modelo de regressão nos sítios ou locais Multi-environment tests in the selection of rice genotypes using sites regression model

Ciência Rural, 2009
A análise da interação genótipo x ambiente utilizda no melhoramento de plantas tem sofrido mudanças na última década, melhorando a sua eficiência quanto à seleção dos genótipos sob diferentes condições ambientais. O objetivo deste trabalho foi analisar a
Lina Maria Ramos, Adhemar Sanches, José Miguel Cotes   +2 more
doaj   +1 more source

Cosecha de Alcances: Valoración de las transformaciones producidas por las Mesas Técnicas Agroclimáticas (MTA) en Latinoamérica [PDF]

, 2020
Durante el 2019 se realizó un proceso de análisis de las transformaciones que han generado las Mesas Técnicas Agroclimáticas (MTA), en los territorios en que han sido establecidas durante los últimos 6 años.
Camacho, Kemly, Giraldo Mendez, Diana Carolina, Martinez- Baron, Deissy, Navarro-Racines, Carlos Eduardo, Prager, Steven D., Ramírez Villegas, Julian   +5 more
core  

Rates of nitrogen from nitric and ammoniacal sources required by upland rice genotypes originating from Brazil and Colombia

Semina: Ciências Agrárias, 2016
The aim of this study was to evaluate the initial growth, nitrogen (N) uptake, and agronomic efficiency after the use of N fertilizers in upland rice cultivation.
Hector Augusto Sandoval Contreras, Mario Sandoval Contreras, Renan Ribeiro Barzan, João Pedro Silvestre, Osmar Rodrigues Brito   +4 more
doaj   +1 more source

Potencial agroalimentario del almid?n de arroz de tres variedades cultivadas en el departamento del Tolima [PDF]

, 2015
69 p. Recurso Electr?nicoMuestras de almid?n de arroz de tres variedades cultivadas en el departamento del Tolima (Fedearroz 50, Fedearroz 60 y Fedearroz 473) fueron analizadas para determinar sus propiedades fisicoqu?micas y funcionales con el fin de ...
Rodr?guez Torres, Diego
core   +2 more sources

Response of rice plants to heat stress during initiation of panicle primordia or grain-filling phases [PDF]

Journal of Stress Physiology & Biochemistry, 2013
Leaf photosynthesis, a major determinant for yield sustainability in rice, is greatly conditioned by high temperature stress during growth. The effect of short-term high temperatures on leaf photosynthesis, stomatal conductance, Fv/Fm, SPAD readings and ...
Hermann Restrepo-Diaz, Gabriel Garces-Varon   +1 more
doaj