Gametophytic Selection: A Simple Technique for Thermo Tolerance Genotypes Identification in Maize

Abstract

Temperature of environment increase day by day so present time identification of heat tolerant genotypes is great challenge. Because tolerance to high temperature is a multi-genic character and also many screenable traits are available. But there no single techniques available which give holistic idea about plant level heat tolerance. Gametophytic selection could be one of the alternative strategies. There are many successful attempt have been made to improve the crop plants by gametophytic selection. In this review discuss the advantages of gametophytic selection over sporophytic selection, the effect of high temperature on maize and how gametophytic selection is a potential option for high temperature screening in maize.