Yield and agronomic responses of soybean to cotyledon and unifoliolate node removal

Jeffrey A. Coulter, Emerson D Nafziger

Research output: Contribution to journalArticle

Abstract

Field experiments were conducted over two years at two locations in Illinois to investigate the response of soybean [Glycine max (L.) Merr.] to simulated hail injury applied at the cotyledon (VC) stage. Removal of one or both cotyledons from all plants or of both cotyledons from alternating plants did not reduce mature plant height or yield in any environment. Cutting the stem off just below the unifoliolate node, alone or in conjunction with the removal of a single cotyledon, reduced yield by 11 to 21% in three of the four environments. It appears that soybean cotyledons are of little importance once the unifoliolate leaves have expanded.

Original languageEnglish (US)
Pages (from-to)353-356
Number of pages4
JournalCrop Science
Volume48
Issue number1
DOIs
StatePublished - Jan 1 2008

ASJC Scopus subject areas

  • Agronomy and Crop Science

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