Selection indexes based on genotypic values applied to Brazilian tropical wheat breeding

نویسندگان

چکیده

Although Brazil is one of the main agricultural countries in world, it historically an importer wheat. For this reason, strategies aimed at expansion wheat country, to areas that are not traditionally producing (warmer), paramount importance. In breeding, phenotypic values ​​are usually used simultaneous selection, however, they do always correspond with genetic superiority. Therefore, objective work was evaluate efficiency five selection indexes applied genotypic ​​of wheat, coincidence between and select most promising lines. this, we evaluated a panel 41 genotypes tropical for traits: days flowering, disease note, plant height, hectoliter weight grain yield. Data were submitted REML/BLUP analysis estimate parameters values. We on BLUPs rank summation index, multiplicative genotype- ideotype distance additive index FAI-BLUP index. There variation shown by deviance all traits. presented different estimates gains from according applied. observed higher genotype-ideotype indexes. High similarity through coefficient Eight lines selected simultaneously three or more Lines VI 14047, 14774 14980 showed best performance among eight Z

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ژورنال

عنوان ژورنال: Agronomy Science and Biotechnology

سال: 2022

ISSN: ['2359-1455']

DOI: https://doi.org/10.33158/asb.r171.v8.2022