Claim · model-written summary
The paddy plots contained 52 weed species.
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e0“Altogether 52 weed species (27 dicot and 25 monocot) belonging to 32 genera and 15 families infested the paddy.”
Title
Weeds of Paddy Field at Kirtipur, Kathmandu
Sailaza Manandhar; Bharat B Shrestha; Hari D Lekhak Scientific World 1970. doi:10.3126/sw.v5i5.2665
Other claims from this paper (13)
- Observation Weed density peaked in September at 105 pl/m2.
- Association Weedy plots had significantly reduced straw yield.
- Association Weedy plots had significantly reduced grain yield.
- Association Weed species richness was negatively correlated with straw yield.
- Association Crop weed competition reduced straw yield by 13% to 38%.
- Association Crop weed competition reduced grain yield by 25% to 47%.
- Association Weed growth changed soil pH.
- Association Weed growth reduced soil nitrogen and phosphorus content.
- Intervention effect Dominant weed extracts had a weak effect on paddy seed germination.
- Intervention effect Most weed extracts inhibited paddy root and shoot elongation.
- Observation Root elongation was more sensitive to allelopathic inhibition than shoot elongation.
- Intervention effect Stem extracts caused higher inhibition of paddy seedling growth than leaf and root extracts.
- Intervention effect For Ageratum conyzoides, root extract had the highest inhibition.