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Use of Self‐Incompatibility to Produce Commercial Seed‐Propagated F 1 Bermudagrass Hybrids 1
Author(s) -
Burton Glenn W.,
Hart Richard H.
Publication year - 1967
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/cropsci1967.0011183x000700050035x
Subject(s) - biology , hybrid , diallel cross , agronomy , clone (java method) , hybrid seed , forage , field experiment , botany , horticulture , gene , genetics
Many clones of bermudagrass exhibit a high degree of self‐incompatibility. Most of these appear to be crosscompatible. Six superior clones set an average of six times more seed when mutually pollinated with the other five clones than when selfed. Four of the 15 diallel (mutual pollination) crosses involving these six clones tested in plots established from seed yielded as much (or more) forage as the best vegetatively propagated clone in the test. One clone, unrelated to the others, gave high‐yielding hybrids and high general combining ability effects when crossed with the other five dories. Commercial F 1 hybrid seed could be produced by harvesting all seed from a field vegetatively planted to alternate rows of two such clones. These clones may not yield enough seed, however, to make hybrid bermudagrass seed production competitive with alternate land uses in Arizona.