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Year 2008 Remove constraint 2008: 2008 Subjects genetic variation Remove constraint genetic variation: genetic variation Subjects grass weeds Remove constraint grass weeds: grass weeds

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1. A Survey of Watermelon Germplasm for Inhibitory Seed Exudates

Description:: Includes references
Author:: Harrison, H.F. Jr. , Levi, A. , Kousik, C.S.
Subject:: Citrullus lanatus , watermelons , plant exudates , seeds , seed germination , allelochemicals , seedling growth , Panicum miliaceum , grass weeds , root radicle , root growth , chemical concentration , genotype , genetic variation , Phytophthora capsici , plant pathogenic fungi , fungal diseases of plants , antifungal properties
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008

2. Differential Response of Cultivated and Weedy (Red) Rice to Recent and Projected Increases in Atmospheric Carbon Dioxide

Description:: Includes references
Author:: Ziska, Lewis H. , McClung, Anna
Subject:: Oryza sativa , rice , red rice , grass weeds , carbon dioxide , elevated atmospheric gases , plant growth , biotypes , cultivars , leaf area , root systems , dry matter partitioning , genetic variation , crop-weed competition
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008

3. Maternal and Burial Environment Effects on Seed Mortality of Velvetleaf (Abutilon theophrasti) and Giant Foxtail (Setaria faberi)

Description:: Includes references
Author:: Schutte, Brian J. , Davis, Adam S. , Renner, Karen A. , Cardina, John
Subject:: Abutilon theophrasti , broadleaf weeds , Setaria faberi , grass weeds , seeds , mortality , field experimentation , testa , maternal effect , buried seeds , species differences , genetic variation , soil water potential , Michigan , Ohio
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008

4. Virulence Frequencies in Oat Crown Rust in the United States from 2001 Through 2005

Description:: Includes references
Author:: Carson, M.L.
Subject:: Puccinia coronata , rust diseases , virulence , strains , strain differences , Avena sativa , oats , Avena fatua , wild relatives , grass weeds , genotype , genetic variation , phenology , disease resistance , genetic resistance , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2008