Results 41 to 50 of about 815 (193)
The evolution of separate sexes in waterhemp is associated with surprising chromosomal diversity and complexity. [PDF]
PLoS BiolThe evolution of separate sexes is hypothesized to occur through distinct pathways involving few large-effect or many small-effect alleles. However, we lack empirical evidence for how these different genetic architectures shape the transition from quantitative variation in sex expression to distinct male and female phenotypes.
Kreiner JM +8 more
europepmc +4 more sources
HortTechnology, 2022 The impacts of weed interference on hemp (Cannabis sativa) yield are largely unstudied despite causing serious economic losses in most cropping systems.
Avery Shikanai, Karla L. Gage
doaj +1 more source
Controlling Herbicide Resistant Waterhemp in Soybeans: 2020 Trials [PDF]
, 2020 Herbicide resistant tall waterhemp (Amaranthus tuberculatus) continues to be one of the most problematic weeds in US field crops. Thus far, it has primarily established in western and central New York.
Brown, Bryan
core +5 more sources
Agronomy, 2021 Very long chain fatty acid (VLCFA)-inhibiting herbicides (Herbicide group (HG) 15) have been applied to corn and soybean fields in Iowa since the 1960s.
Eric A. L. Jones, Micheal D. K. Owen
doaj +1 more source
Agrosystems, Geosciences & Environment, 2023 Giant ragweed (Ambrosia trifida L.) and waterhemp (Amaranthus tuberculatus [Moq.] J.D.Sauer) are highly competitive and the most troublesome weeds in corn (Zea mays L.) and soybean (Glycine max Merr.) cropping systems in Wisconsin. Field experiments were
Rodrigo Werle +3 more
doaj +1 more source
Climatic Constraints to the Potential of Microsphaeropsis amaranthi as a Bioherbicide for Common Waterhemp [PDF]
Phytopathology®, 2006 The fungal plant pathogen Microsphaeropsis amaranthi is a candidate bioherbicide for the control of weedy Amaranthus species since it grows and sporulates readily in culture, is a pathogen of a number of important weed species, and is host-restricted to the family Amaranthaceae.
David A, Smith +3 more
openaire +2 more sources
Performance of Two Bioherbicide Fungi for Waterhemp and Pigweed Control in Pumpkin and Soybean [PDF]
Plant Disease, 2011 Common waterhemp (Amaranthus rudis) and pigweeds (Amaranthus spp.) are troublesome weeds in many cropping systems and have evolved resistance to several herbicides. Field trials to further develop Microsphaeropsis amaranthi and Phomopsis amaranthicola as bioherbicides for control of waterhemp and pigweeds were conducted to test the effectiveness of ...
Loretta M, Ortiz-Ribbing +3 more
openaire +2 more sources
Multiple herbicide-resistant waterhemp control with Group 15 herbicides
Weed Technology, 2023 AbstractWaterhemp has evolved resistance to seven herbicide modes of action in the United States and to five in Canada, which limits weed control options for producers. The objective of this research was to quantify the level and duration of residual control of multiple herbicide-resistant (MHR) waterhemp with five Group 15 herbicides (acetochlor ...
Hannah E. Symington +5 more
openaire +1 more source
Distinct Detoxification Mechanisms Confer Resistance to Mesotrione and Atrazine in a Population of Waterhemp [PDF]
Plant Physiology, 2013 Abstract Previous research reported the first case of resistance to mesotrione and other 4-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides in a waterhemp (Amaranthus tuberculatus) population designated MCR (for McLean County mesotrione- and atrazine-resistant).
Rong, Ma +8 more
openaire +2 more sources
Frontiers in Agronomy, 2021 Roundup Ready 2 Xtend® [glyphosate- and dicamba-resistant (DR)] soybean is a novel trait option for postemergence (POST) control of herbicide-resistant broadleaf weeds in soybean.
Sarah Striegel +5 more
doaj +1 more source