Year: 1975
Type: article
Abstract: A high degree of inheritance for resistance and susceptibility in sweet corn ( Zea mays L.) to acute ozone leaf injury under field conditions was shown during 2 and 3 generations of breeding with 3 series of cultivars. Crosses of highly susceptible × resistant inbreds gave notably susceptible F 1 's. F 2 families segregated quantitatively but extremes were sometimes recovered. Distribution in F 2 was skewed toward low injury. Resistant X resistant crosses gave almost fully resistant F 1 's and F 2 's. A study involving a second series of inbreds also showed a close relationship between susceptibility in a parent and in its derived F 1 's. Three generations of selection and inbreeding, beginning with a segregating population, resulted in near fixation in resistant sublines but showed continued segregation in progenies from susceptible selections.
Author: James W. Cameron
Institution: University of California, Riverside
Language: English
Topic: Genetics and Plant Breeding
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $3,500
OpenAlex ID: W2277975435