Results 41 to 50 of about 534,227 (288)

QTL Analysis for Resistance to Blast Disease in U.S. Weedy Rice

Molecular Plant-Microbe Interactions, 2015
Understanding the genetic architecture of adaptation is of great importance in evolutionary biology. U.S. weedy rice is well adapted to the local conditions in U.S. rice fields.
Yan Liu, Xinshuai Qi, Dave R. Gealy, Kenneth M. Olsen, Ana L. Caicedo, Yulin Jia   +5 more
doaj   +1 more source

Genomic patterns of nucleotide diversity in divergent populations of U.S. weedy rice

BMC Evolutionary Biology, 2010
Background Weedy rice (red rice), a conspecific weed of cultivated rice (Oryza sativa L.), is a significant problem throughout the world and an emerging threat in regions where it was previously absent.
Olsen Kenneth M, Gross Briana L, Thurber Carrie S, Reagon Michael, Jia Yulin, Caicedo Ana L   +5 more
doaj   +1 more source

Assessing Physiological and Genetic Evidence for Evolution of Shared Weedy Rice Traits at the Vegetative Growth Stage

Frontiers in Agronomy, 2021
Weedy rice (Oryza spp.) has successfully adapted to invasion of cultivated rice (O. sativa L.) fields by being a strong competitor from the early vegetative growth stages to crop harvest.
Zhongyun Huang, Jorge Andres Rodriguez, Rika Matsuo, Ana L. Caicedo   +3 more
doaj   +1 more source

Timing is everything: early degradation of abscission layer is associated with increased seed shattering in U.S. weedy rice

BMC Plant Biology, 2011
Background Seed shattering, or shedding, is an important fitness trait for wild and weedy grasses. U.S. weedy rice (Oryza sativa) is a highly shattering weed, thought to have evolved from non-shattering cultivated ancestors. All U.S.
Hepler Peter K, Thurber Carrie S, Caicedo Ana L   +2 more
doaj   +1 more source

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

Evolutionary Applications, 2020
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.
Verónica Hoyos, Guido Plaza, Xiang Li, Ana L. Caicedo   +3 more
doaj   +1 more source

Studies On Biology And Selected Control Measures Of Weedy Rice(Oryza Sativa Complex) In Rice Cultivation [SB191.R5 Z21 2008 f rb]. [PDF]

, 2008
Survei lapangan telah dilakukan mulai 2003 sehingga 2005 dalam tempoh empat musim berturut-turut menunjukkan terdapat 44 spesis rumpai daripada 29 genera yang tergolong dalam 18 famili dicatatkan di kawasan Muda. Field survey which was conducted from
Hamid, Zainal Abidin Abd
core   +1 more source

Occurrence pattern and morphological polymorphism of Chinese weedy rice

Journal of Integrative Agriculture, 2023
Rice, the main food crop in China, has been sporadically reported to suffer from weedy rice infestation. However, the overall occurrence and distribution pattern of Chinese weedy rice remains unclear because a systematic survey has not been conducted. In
Hao-quan WANG, Wei-min DAI, Zi-xu ZHANG, Meng-shuo LI, Ling-chao MENG, Zheng ZHANG, Huan LU, Xiao-ling SONG, Sheng QIANG   +8 more
doaj   +1 more source

Weedy Rice Infestation in Malaysia: What Do We Know and Where Do We Go?

Agriculture
Weedy rice is a notorious weed in the rice agroecosystem. Its infestation has caused significant economic loss in many rice-production countries, including Malaysia.
Intan Filzah Mahmod, Sharifah Nurnabilah Syed Bakar, Muhamad Shakirin Mispan, Farahaniza Supandi, Zulqarnain Mohamed, Mohd Zuwairi Saiman   +5 more
doaj   +1 more source

Molecular evolution of the rice blast resistance gene Pi-ta in invasive weedy rice in the USA. [PDF]

PLoS ONE, 2011
The Pi-ta gene in rice has been effectively used to control rice blast disease caused by Magnaporthe oryzae worldwide. Despite a number of studies that reported the Pi-ta gene in domesticated rice and wild species, little is known about how the Pi-ta ...
Seonghee Lee, Yulin Jia, Melissa Jia, David R Gealy, Kenneth M Olsen, Ana L Caicedo   +5 more
doaj   +1 more source

Weedy rice (Oryza sativa) II. Response of Weedy Rice to Seed Burial and Flooding Depth

, 2012
Weedy rice is a serious problem of cultivated rice in most of the rice-growing areas in Asia, causing increased production costs and yield losses in rice. A study was conducted to determine the response of weedy rice accessions from India (IWR), Malaysia
Chauhan, Bhagirath Singh
core   +1 more source