Claim · model-written summary
Avenu fatua emergence occurred up to the four-leaf stage of the crop.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
t0“competition between Avenu fatua L. and spring barley”
e1“Emergence occurred up to the four‐leaf stages of the crop”
Title
N.C.B. PETERS; B.J. WILSON ARC Weed Research 1983. doi:10.1111/j.1365-3180.1983.tb00553.x
Other claims from this paper (13)
- Observation Avenu fatua plants took a mean of 22 days from drilling to 50% emergence in 1972.
- Observation Avenu fatua plants took a mean of 36 days from drilling to 50% emergence in 1973.
- Observation In 1972, most seeds were shed by early emerging Avenu fatua plants (79%).
- Observation In 1973, most seeds were shed by early emerging Avenu fatua plants.
- Observation In 1972, Avenu fatua plants that had emerged by the two-leaf stage produced 97% of all seed shed.
- Observation In 1973, Avenu fatua plants that had emerged by the two-leaf stage produced 89% of all seed shed.
- Observation 59% of Avenu fatua plants had emerged by the two-leaf stage of the crop.
- Association Avenu fatua plants emerging before the crop produced five times as many seeds per plant as those emerging between the crop two and three-leaf stages.
- Association Mortality of Avenu fatua plants in the crop was significantly related to their spring density.
- Observation The number of Avenu fatua plants emerging by a given crop leaf stage varied largely between sites.
- Intervention effect In 1972, early emerging Avenu fatua at a given density caused greater spring barley yield loss than the same density emerging later.
- Intervention effect In 1971 experiments, early emerging Avenu fatua at a given density also caused spring barley yield loss, to a lesser extent than in 1972.
- Association The earliest emerging Avenu fatua plants were the heaviest and had the most stems per plant.