COMPARISON OF THE EFFICIENCIES OF THE DIFFERENT SELECTION PROCEDURES IN THREE POPULATIONS OF EGYPTIAN COTTONS (Gossypium barbadense L.)

MOHAMED, MOHAMED K.; SARY, GABER A.; EL-OKKIAH, AHMED F. H.; EL-LAWENDEY, MOHAMED M.

doi:10.21608/ejar.2008.205726

COMPARISON OF THE EFFICIENCIES OF THE DIFFERENT SELECTION PROCEDURES IN THREE POPULATIONS OF EGYPTIAN COTTONS (Gossypium barbadense L.)

Document Type : Original Article

Authors

¹ Faculty of Agriculture, Moshtohor, Zagazig University, Egypt

² Cotton Research Institute, Agricultural Research Center, Giza, Egypt

10.21608/ejar.2008.205726

Abstract

Different selection methods i e phenotypic individual trait selection, selection index and recurrent selection were used to improve lint yield in three populations of Egyptian cotton, G. 45 x G. 75, G. 87 x G. 89 and G. 86 variety grown in open-pollinated bulks for four years. In population I (G. 45 x G. 75), the direct phenotypic trait selection procedure in F4 generation for lint yield (I_n.,) was superior to the other selection procedures. Concerning population II (G. 87 x G. 89), the recurrent selection and phenotypic trait selection for bolls/plant (I₄) in F₄ generation were more efficient than the other selection procedures. Regarding population III (G. 86 open-pollinated cultivar), both recurrent selection and index I, in S2 generation were superior compared with the other selection procedures.