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Performance of Advanced Generations of Autotetraploid Maize ( Zea mays L.) Synthetics 1
Author(s) -
Dudley J. w.,
Alexander D. E.
Publication year - 1969
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/cropsci1969.0011183x000900050030x
Subject(s) - zea mays , biology , agronomy , poaceae , grain yield , yield (engineering) , horticulture , botany , physics , thermodynamics
Four, five, and nine generations, depending on the synthetic, of four autotetraploid maize ( Zea mays L.) synthetics created by the “elongate” method were compared for 2 years at Urbana, Ill. In all four synthetics, percent seed set, yield, plant height, and ear height increased with advancing generations. Large increases occurred between particular cycles followed by cycles where no changes occurred. Possible reasons for this type of increase rather than a steady increase over all cycles are discusse