Claim · model-written summary
Selection for early flowering changed stalk breakage by 2.8% per cycle.
Zea maysNot reportedComparator
Verbatim
e0“Selection effect per cycle averaged: 1.1 q/ha yield increase, 2.2 ears/100 p.lants increase (1‐year data), 1.6 percentage points grain moisture decrease, 2.8% stalk breakage increase, 6.1 cm plant height decrease, 4.1 cm ear height decrease, 1.7 days less to flower, and 0.4 days less silk delay.”
e1“Seven corn ( Zea mays L.) synthetics adapted to southern Iowa”
Title
Selection for Early Flowering in Corn: Seven Late Synthetics
A. F. Troyer; W. L. Brown Crop Science 1976. doi:10.2135/cropsci1976.0011183x001600060007x
Other claims from this paper (16)
- Intervention effect Selection for early flowering changed yield by 1.1 q/ha per cycle.
- Intervention effect Selection for early flowering changed ears/100 p.lants by 2.2 ears/100 p.lants per cycle.
- Intervention effect Selection for early flowering changed grain moisture by 1.6 percentage points per cycle.
- Intervention effect Selection for early flowering changed plant height by 6.1 cm per cycle.
- Intervention effect Selection for early flowering changed ear height by 4.1 cm per cycle.
- Intervention effect Selection for early flowering changed flower by 1.7 days per cycle.
- Intervention effect Selection for early flowering changed silk delay by 0.4 days per cycle.
- Observation Advanced selection cycles were prolific at low density after selection against barrenness at high density.
- Association Flowering date was highly heritable and responded readily to selection.
- Intervention effect Selection for early flowering produced more genetic divergence than early donor breeding schemes.
- Association Earlier flowering increased yield among late flowering corn.
- Association Earlier flowering decreased yield among early flowering corn.
- Association Earlier flowering increased yield in a short, cool season.
- Association Earlier flowering decreased yield in a long, warm season.
- Recommendation The authors recommend early flowering selection to adapt late corn to earlier areas.
- Mechanism The authors interpret earlier flowering yield responses through grain filling period and plant size.