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Morphological Basis for Poor Emergence in Inbred Oh43 Corn
Author(s) -
Tapper Diane Currie,
Nevins Donald
Publication year - 1974
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1974.0011183x001400040027x
Subject(s) - coleoptile , biology , seedling , zea mays , hybrid , inbred strain , agronomy , botany , genetics , gene
Studies on the seedling emergence of corn ( Zea mays L.) inbred Oh43 indicated that poor stand establishment under field conditions was associated with a structural defect of the coleoptile. The ultimate length of Oh43 coleoptiles is comparable to that of other inbreds, but many of the former develop a longitudinal fissure extending abaxially from near the tip to the coleoptile node. In some seedlings this fissure continues as a dual furrow along the abaxial side of the first internode. Although most (ca. 75%) Oh43 seedlings produce such coleoptiles, this feature was not apparent in other inbreds except one derived from Oh43. Hybrids resulting from crosses with Oh43 showed no evidence of this coleoptile anomaly.