Results 131 to 140 of about 564,741 (174)

When West Meets East: The Origins and Spread of Weedy Rice Between Continental and Island Southeast Asia. [PDF]

G3 (Bethesda), 2019
Neik TX, Chai JY, Tan SY, Sudo MPS, Cui Y, Jayaraj J, Teo SS, Olsen KM, Song BK.   +8 more
europepmc   +1 more source

Control of weedy rice on nontillage direct seeded rice fields

Journal of Weed Science and Technology, 2000
openaire   +2 more sources

Weedy rice in sustainable rice production. A review [PDF]

Agronomy for Sustainable Development, 2017
AbstractWeedy rice refers to the unwanted plants of the genus Oryza that have some undesirable agronomic traits and pose a major threat to sustainable rice production worldwide. Widespread adoption of direct seeded rice and hybridization or gene flow between cultivated rice and their wild relatives has resulted in the creation and dissemination of ...
Dong Sun Lee
exaly   +3 more sources

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The origins of weedy rice

Molecular Ecology, 2007
AbstractWhere do weeds come from? How do they evolve from nonweedy ancestors? In this issue of Molecular Ecology, Londo and Schaal examine the origin of weedy rice (Oryza sativa) populations in the USA. Analysing nuclear DNA sequence and microsatellite data, they show the importance of parallel evolution, hybridization, gene flow, and migration in the ...
Nolan C, Kane, Eric J, Baack
openaire   +4 more sources

Competitive N uptake between rice and weedy rice

Field Crops Research, 2006
Abstract Weedy rice, red rice ( Oryza sativa L.), is a serious problem in rice-producing areas of the southern U.S. and various regions worldwide. It competes for production inputs, increases weed control cost, reduces yield and grain quality, and could eliminate economic returns.
Nilda R Burgos, Richard J Norman
exaly   +2 more sources

Signatures of adaptation in the weedy rice genome

Nature Genetics, 2017
Crop domestication provided the calories that fueled the rise of civilization. For many crop species, domestication was accompanied by the evolution of weedy crop relatives, which aggressively outcompete crops and reduce harvests. Understanding the genetic mechanisms that underlie the evolution of weedy crop relatives is critical for agricultural weed ...
Lin-Feng Li, Ya-Ling Li, Yulin Jia, Ana L Caicedo, Kenneth M Olsen   +4 more
openaire   +2 more sources

Evolving insights on weedy rice

Ecological Genetics and Genomics, 2018
Abstract Agricultural weeds that have evolved from de-domesticated (feral) crop plants cause millions of dollars in annual yield losses worldwide and are one of the primary barriers to global crop productivity. Weedy rice (Oryza sativa f. spontanea) is a de-domesticated form of rice that has evolved multiple times independently from different ...
Marshall J. Wedger, Kenneth M. Olsen
openaire   +1 more source

Modeling the Development of Cultivated Rice and Weedy Red Rice

Transactions of the ASABE, 2011
Development models are an important part of crop simulation models and are useful tools for field operations. The objective of this study was to simulate the development of cultivated rice and weedy red rice with a linear model (thermal time model) and with a non-linear model (WE model).
null N. A. Streck, null I. Lago, null F. B. Oliveira, null A. B. Heldwein, null L. A. de Avila, null L. C. Bosco   +5 more
openaire   +1 more source

Weedy rice: An expanding problem in direct-seeded rice in the Philippines

Weed Biology and Management, 2020
AbstractWeedy rice is morphologically similar to cultivated rice (Oryza sativa L.). It has biological characteristics that identify it as a weed. Its important weedy characteristics, that is, early and heavy seed shattering, makes it very difficult to control.
Leylani Juliano
exaly   +2 more sources

Population Genomics of Weedy Crop Relatives: Insights from Weedy Rice

2020
Weedy crop relatives can evolve as a byproduct of the domestication process, and most modern crop species have conspecific or congeneric weedy relatives. These weedy relatives invade crop fields and aggressively outcompete desirable cultivars through a suite of weediness traits. Weedy rice (Oryza sativa f. spontanea) is a highly morphologically diverse
Lin-Feng Li, Kenneth M. Olsen
openaire   +1 more source