Yield and quality losses caused by common rust (Puccinia sorghi Schw.) in sweet corn (Zea mays) hybrids

J. V. Groth, R. J. Zeyen, D. W. Davis, B. J. Christ

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Yield and quality of fresh ears were measured in field plots of selected hybrids of sweet corn (Zea mays L.) that were affected by rust (Puccinia sorghi Schw.) or were nearly rust-free (mancozeb-sprayed). In 1978, 28 hybrids were tested. Losses in total yield ranged from zero in the more resistant entries to nearly 50% in more susceptible entries. In 1979, three cultivars were planted. Yield losses of these cultivars were similar in ranking order to those in 1978, although the loss was greater in late-planted plots because of the greater final severity of the disease. Losses in total yield in late-planted sweet corn were 18%, 26% and 49% for cv. Sugarloaf (most resistant), cv. Jubilee (intermediate) and cv. Style Pak (most susceptible), respectively.

Original languageEnglish (US)
Pages (from-to)105-111
Number of pages7
JournalCrop Protection
Volume2
Issue number1
DOIs
StatePublished - Mar 1983

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

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