Response to reciprocal recurrent selection for double cross improvement in maize
Graterol, E.J.
Response to reciprocal recurrent selection for double cross improvement in maize - Mexico, DF (Mexico) CIMMYT : 2003 - p. 270-271 - Printed
Recurrent selection schemes designed to improve the cross between two populations are known as reciprocal recurrent selection (RRS). At the University of Wisconsin, J.H. Lonnquist initiated the W577 full-sib RRS program in the early 1970s. W577 is a double cross hybrid [(W64A x A295)(Oh43 x W374R)]. Six cydes of the W577 RRS program have been completed, starting with the F2 of each single parental hybrid as the origina1 A (W64A x A295) and B (Oh43 x W374R) populations. Selection was based on increased grain yield and decreased grain moisture. Direct and indirect responses of selection and estimated inbreeding depression for several agronomic traits were examined.
English
Crossbreeding
Experimentation
Grain yield
Inbred lines
Maize
Genetic resources
Hybrids
631.53 / BOO
Response to reciprocal recurrent selection for double cross improvement in maize - Mexico, DF (Mexico) CIMMYT : 2003 - p. 270-271 - Printed
Recurrent selection schemes designed to improve the cross between two populations are known as reciprocal recurrent selection (RRS). At the University of Wisconsin, J.H. Lonnquist initiated the W577 full-sib RRS program in the early 1970s. W577 is a double cross hybrid [(W64A x A295)(Oh43 x W374R)]. Six cydes of the W577 RRS program have been completed, starting with the F2 of each single parental hybrid as the origina1 A (W64A x A295) and B (Oh43 x W374R) populations. Selection was based on increased grain yield and decreased grain moisture. Direct and indirect responses of selection and estimated inbreeding depression for several agronomic traits were examined.
English
Crossbreeding
Experimentation
Grain yield
Inbred lines
Maize
Genetic resources
Hybrids
631.53 / BOO