Claim · model-written summary
Selection reduced lodging by 1.1% per cycle without nitrogen fertilizer.
- Treatment
- selectione0
- Outcome
- lodginge0
- Direction
- decreaseinferrede0
- Value
- -1.1%e0
- Qualifier
- zero fertilizer Ne0
Zea maysNot reportedComparator
Verbatim
t0“maize”
e0“progress per cycle of selection for grain yield, days to mid-silk, plant height, and lodging were 1.6, -0.6, -1.5, -1.1% at zero fertilizer N”
Title
Progress from selection in la posta maize population evaluated underthree nitrogen fertilizer levels
TSpace 1998
Other claims from this paper (19)
- Intervention effect Mean grain yield rose across the three nitrogen rates from 3.0 to 4.7 to 5.2 Mg ha-1.
- Intervention effect As nitrogen increased, grain yield, plant height and lodging increased.
- Intervention effect Ear rating increased with fertilizer nitrogen.
- Intervention effect Days to mid-silk decreased with increasing fertilizer nitrogen.
- Intervention effect Grain moisture and ears per plant did not change as fertilizer nitrogen increased.
- Observation The greatest response to applied nitrogen across traits was at 80 kg N ha-1.
- Observation Nitrogen response patterns were similar across selection cycles.
- Intervention effect Selection increased grain yield per cycle by 1.6% without nitrogen fertilizer.
- Intervention effect Selection advanced mid-silk by 0.6% per cycle without nitrogen fertilizer.
- Intervention effect Selection reduced plant height by 1.5% per cycle without nitrogen fertilizer.
- Intervention effect Selection increased grain yield by 2.1% per cycle at 80 kg N ha-1.
- Intervention effect Selection decreased days to mid-silk by 0.8% per cycle at 80 kg N ha-1.
- Intervention effect Selection decreased plant height by 1.5% per cycle at 80 kg N ha-1.
- Intervention effect Selection decreased lodging by 3.5% per cycle at 80 kg N ha-1.
- Intervention effect At 160 kg N ha-1, selection increased grain yield by 1.8% per cycle.
- Intervention effect At 160 kg N ha-1, selection decreased days to mid-silk by 0.7% per cycle.
- Intervention effect At 160 kg N ha-1, selection decreased plant height by 1.4% per cycle.
- Intervention effect At 160 kg N ha-1, selection decreased lodging by 2.8% per cycle.
- Observation Recurrent selection had little effect on the population’s nitrogen fertilizer response.