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Selection for Seed Setting in Hybrid Populations of Autotetraploid Barley, Hordeum vulgare L. emend Lam. 1
Author(s) -
Kao K. N.,
Reinbergs E.,
Harvey B. L.
Publication year - 1970
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/cropsci1970.0011183x001000050009x
Subject(s) - biology , heterosis , selection (genetic algorithm) , hybrid , hordeum vulgare , hybrid seed , botany , set (abstract data type) , agronomy , microbiology and biotechnology , horticulture , poaceae , artificial intelligence , computer science , programming language
Selection for increased seed set was carried out in the segregating generations of four hybrid populations derived from intercrosses of five autotetraploid lines. The seed set of the early generations of the hybrid populations was higher than the respective parents and was maintained through the F 5 to F 10 generations. Selection, however, was ineffective in increasing the percentage seed set. The greater seed set of the hybrids was probably not due to heterosis unless a great deal of preferential pairing occurred. Selection was also carried out for reduced seed set and this was also ineffective. The lack of success in selection indicates a need to select on the basis of specific combining ability to improve the seed set of autotetraploid barleys.