Claim · model-written summary
All Zn fertilization treatments increased shoot dry matter by more than 50% at the 10-leaf stage.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Organ / stage
- 10-leaf stagee1
- Treatment
- Zn fertilization treatmentse1
- Outcome
- shoot dry mattere1
- Direction
- increasee1
- Value
- >50%e1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“In a glasshouse study, the response of oilseed rape seedlings to post-transplanting Zn supply and to root pruning was examined”
e1“All Zn fertilization treatments resulted in a large increase (>50%) in shoot dry matter at 10-leaf stage”
Title
Response of Transplanted Oilseed Rape to Zinc Placement and Root Pruning
R. W. Bell; Z. G. Lu; J. Li; et al. Journal of Plant Nutrition 2004. doi:10.1081/pln-120028871
Other claims from this paper (15)
- Intervention effect Zinc supply increased shoot dry matter from the first harvest at 10 days after transplanting.
- Intervention effect Root pruning had no effect on shoot dry matter at 10 days.
- Intervention effect Root pruning depressed shoot dry matter at 20 days and thereafter.
- Association The effects of root pruning on the growth response to Zn were additive to those of Zn supply.
- Observation Zn uptake was lacking between 10 and 20 days after transplanting in oilseed rape with 75% of roots pruned.
- Mechanism The 10-20 day lack of Zn uptake may be the critical period for Zn response in the field.
- Intervention effect With only 50% or none of the roots pruned, Zn uptake appeared to be unimpaired, compared with 75% of roots pruned.
- Intervention effect Banding of Zn increased final seed yield by an average of 10% in two field experiments.
- Intervention effect Zn in irrigation water increased final seed yield by an average of 10% in two field experiments.
- Intervention effect Root dipping of transplants in ZnO increased final seed yield by an average of 10% in two field experiments.
- Intervention effect Broadcasting ZnSO4 at transplanting had no significant effect on seed yield.
- Observation At the 10-leaf stage, plants contained more than adequate Zn in their young leaves for growth.
- Mechanism Oilseed rape experienced only a temporary Zn deficiency after transplanting.
- Intervention effect Post-transplanting impairment of Zn uptake was reduced by placing Zn fertilizer close to the roots.
- Intervention effect Post-transplanting impairment of Zn uptake was reduced by minimizing root damage during transplanting.