Abstract
Data obtained from the measurement of drought tolerance by several methods in six by six sweet corn ( Zea mays L.) diallel crosses constituted the basis for an analysis of the inheritance of drought tolerance. Variance‐covariance regressions imply that, within the sample measured, the inheritance of drought tolerance in sweet corn follows a pattern of partial to nearly complete dominance. Combining ability estimates indicate that inbreds which exhibit high general combining ability for drought tolerance produce the greatest number of drought‐tolerant hybrids. Frequency distributions of germination percentages for the F 2 and both F 1 backcross generations germinated in mannitol solution suggest that drought tolerance in sweet corn is under the genetic control of no less than three gene pairs, although in some families only one major gene may be segregating.
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Claims 4
Claim · model-written summary
Sweet corn drought tolerance shows partial to nearly complete dominance in this sample.
- Taxon
- sweet corne0
- Material
- sweet corne0
- Outcome
- inheritance of drought tolerancee0
- Qualifier
- partial to nearly complete dominancee0
Not reportedDirection
Verbatim
e0“the inheritance of drought tolerance in sweet corn follows a pattern of partial to nearly complete dominance”
Claim · model-written summary
Inbreds with high general combining ability for drought tolerance produce the most drought tolerant hybrids.
Verbatim
e0“inbreds which exhibit high general combining ability for drought tolerance produce the greatest number of drought‐tolerant hybrids.”
e1“sweet corn ( Zea mays L.)”
Claim · model-written summary
Drought tolerance in sweet corn appears controlled by at least three gene pairs.
Not reportedDirection
Verbatim
e0“drought tolerance in sweet corn is under the genetic control of no less than three gene pairs”
Claim · model-written summary
Some sweet corn families may segregate one major gene for drought tolerance.
Not reportedDirection
Verbatim
e0“although in some families only one major gene may be segregating.”
e1“drought tolerance in sweet corn is under the genetic control”