Abstract
A high degree of inheritance of resistance and susceptibility of sweet corn (leaves) to acute ozone injury under field conditions was shown during 2 and 3 generations of breeding with 3 series of cultivars. Crosses of highly susceptible X resistant inbreds gave notably susceptible F/sub 1/'s which segregated quantitatively over a wide range of injury levels in F/sub 2/. Resistant X resistant crosses gave nearly fully resistant progenies. A 2-generation study involving a second series of inbreds also showed close correlation between susceptibility in a parent and in related F/sub 1/'s. Three generations of selection combined with inbreeding, starting with a segregating population, resulted in nearly fixation for resistant sublines, but gave a continued wide range of segregation in progenies of susceptible selects.
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Claims 7
Claim · model-written summary
Resistance and susceptibility of sweet corn leaves to acute ozone injury showed a high degree of inheritance under field conditions over 2 and 3 generations of breeding.
- Taxon
- sweet corne0
- Organ / stage
- leavese0
- Outcome
- inheritance of resistance and susceptibilitye0
- Setting
- field conditionse0
Not reportedDirection
Verbatim
e0“A high degree of inheritance of resistance and susceptibility of sweet corn (leaves) to acute ozone injury under field conditions was shown”
Claim · model-written summary
Crosses of highly susceptible by resistant sweet corn inbreds gave notably susceptible F1 progeny.
- Taxon
- sweet cornt0
- Material
- highly susceptible X resistant inbredse0
- Outcome
- notably susceptible F/sub 1/'se0
Not reportedDirection
Verbatim
e0“Crosses of highly susceptible X resistant inbreds gave notably susceptible F/sub 1/'s”
t0“sweet corn”
Claim · model-written summary
The susceptible by resistant crosses segregated quantitatively over a wide range of ozone injury levels in the F2 of sweet corn.
- Taxon
- sweet cornt0
- Organ / stage
- F/sub 2/e0
- Outcome
- segregated quantitatively over a wide range of injury levelse0
Not reportedDirection
Verbatim
e0“which segregated quantitatively over a wide range of injury levels in F/sub 2/”
t0“sweet corn”
Claim · model-written summary
Resistant by resistant sweet corn crosses gave nearly fully resistant progenies.
Not reportedDirection
Verbatim
e0“Resistant X resistant crosses gave nearly fully resistant progenies”
t0“sweet corn”
Claim · model-written summary
In a 2-generation study with a second series of inbreds, susceptibility in a parent correlated closely with susceptibility in related F1 plants.
- Taxon
- sweet cornt0
- Material
- a second series of inbredse0
- Outcome
- susceptibility in a parent and in related F/sub 1/'se0
Not reportedDirection
Verbatim
e0“A 2-generation study involving a second series of inbreds also showed close correlation between susceptibility in a parent and in related F/sub 1/'s”
t0“sweet corn”
Claim · model-written summary
Three generations of selection with inbreeding from a segregating population gave nearly fixed resistant sublines.
- Taxon
- sweet cornt0
- Treatment
- Three generations of selection combined with inbreedinge0
- Outcome
- nearly fixation for resistant sublinese0
Not reportedDirection
Verbatim
e0“Three generations of selection combined with inbreeding, starting with a segregating population, resulted in nearly fixation for resistant sublines”
t0“sweet corn”
Claim · model-written summary
The progenies of susceptible selects continued to segregate over a wide range after three generations of selection with inbreeding.
- Taxon
- sweet cornt0
- Material
- progenies of susceptible selectse0
- Outcome
- continued wide range of segregatione0
Not reportedDirection
Verbatim
e0“but gave a continued wide range of segregation in progenies of susceptible selects”
t0“sweet corn”