It was analyzed in this article of the maize germplasm foundation and heterosis model and the situation of maize breeding in Liaoning province through the ten years' varieties verified in Liaoning province.
In order to enhance the QPM germplasm basis and convert elite normal lines into QPM,the markers were used to detect o2 gene in backcross generations,and it has proved that it is a powerful tool in the breeding.
Petota) present a valuable germplasm base for cultivar improvement.
Our results indicate that breeders averted the narrowing of the wheat germplasm base and subsequently increased the genetic diversity through the introgression of novel materials.
The cell fusion, selection, and regeneration scheme developed herein should provide a general means to expand the germplasm base of cultivated Citrus by intergeneric hybridization with related sexually incompatible genera.
wrightii and attributed to a restricted germplasm base.
These results indicate that it may not be possible to eliminate P34 from the food supply by breeding with an improved germplasm base.