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Gamete Selection in Two Early Maturing Corn Varieties 1
Author(s) -
Giesbrecht John
Publication year - 1964
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/cropsci1964.0011183x000400010007x
Subject(s) - selection (genetic algorithm) , citation , library science , crop , agriculture , biology , computer science , history , agronomy , artificial intelligence , archaeology
THE number of inbreds of corn (Zea mays L.) which have high combining ability for yield and acceptable performance for other agronomic characters is generally limited within a maturity group. Frequently, many of the acceptable inbreds are closely related and consequently are of restricted use in hybrid production. The need for new sources of unrelated inbreds is especially critical in the fringes of the corn belt where the breeding effort has been modest and the number of elite lines identified has been relatively small. Many of the local open-pollinated varieties have not been adequately sampled but are potential sources of new inbreds. In 1944 Stadler (15) proposed gamete selection as an efficient procedure for extracting high combining inbreds from open-pollinated varieties. Obviously, a system which is more efficient than the standard inbreeding and selection procedure would be very valuable. This paper summarizes the experience with gamete selection for grain yield and ear moisture in the two early maturing varieties 'Falconer' and 'Rainbow Flint'.