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A Procedure for One Cycle of Recurrent Selection per Year with Spring‐Sown Small Grains
Author(s) -
Frey K. J.,
McFerson J. K.,
Branson C. V.
Publication year - 1988
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/cropsci1988.0011183x002800050029x
Subject(s) - biology , selection (genetic algorithm) , avena , grain yield , yield (engineering) , greenhouse , agronomy , zoology , microbiology and biotechnology , computer science , physics , thermodynamics , artificial intelligence
The objective was to combine a set of crossing and evaluation techniques into a regime that permits a breeder to conduct one cycle of recurrent selection for protein or grain yield of oats ( Avena sativa L.) per year. Parental strains are crossed in the greenhouse during September to December, S 0 plants are propagated in the greenhouse during December to March, S 0.1 lines are evaluated in a replicated multilocation experiment in the field during April to July, and data summary and selection of parental lines for a new cycle occur during August. The schedule is repeated for each cycle. Over three cycles, the gain per cycle (and per year) was 4.7% for protein yield and 5.4% for grain yield. Techniques employed to permit completion of a cycle of recurrent selection in 1 year were: (i) approach method of crossing, (ii) evaluating S 0.1 lines, (iii) hill plots for field evaluation, (iv) infrared analyzer for N determinations, and (v) computer data analyses and line selection.