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Vegetative phase change among sweet corn ( Zea mays L.) hybrids varying for reaction to common rust ( Puccinia sorghi Schw.)
Author(s) -
Chandler M. A.,
Tracy W. F.
Publication year - 2007
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.2007.01402.x
Subject(s) - biology , hybrid , rust (programming language) , zea mays , agronomy , poaceae , vegetative reproduction , resistance (ecology) , botany , horticulture , programming language , computer science
In maize, timing of vegetative phase change has been implicated in the response to certain pests and environmental stresses. Common rust is the most serious disease of sweet corn in the north central United States. Sweet corn hybrids differing for resistance to common rust were evaluated for vegetative phase change traits. There were significant differences among hybrids for all vegetative phase change traits measured, as well as resistance to common rust. Certain hybrids displayed rapid transition (within two leaves) from juvenile to adult vegetation, while others displayed prolonged transition (within four leaves). There were no significant correlations between vegetative phase change traits and common rust severity among the commercial sweet corn hybrids evaluated in this experiment.