Effects of populations and selection methods applied in wheat segregating generations

Two experiments were carried out during the years 1979 and 1980, as the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, in Guaíba, Rio Grande do Sul State, Brazil, aiming to determine the effects of a selection pressure cycle in six methods (SSD – single seed descent, honeycomb method, massal populational method, bigger bulk and small bulk), applied in F2 and tested in F3 generations of 16 populations of hexaploid wheat. A positive shift was noted in these populations, on account of the methods of selection for the characters grain yield, kernel weight, biological yield, tillering number/m2, harvest index and plant stature. Results on certain agronomic characters indicated that the methods of selection honeycomb, mass selection and bigger bulk based on quantitative observations could be practiced with certain advantages and without adverse response for most of these characters. Practical implications of these findings are discussed.

Bibliographic Details

Main Authors:	Cruz, Pedro Jacinto, Carvalho, Fernando I. F. de, Federizzi, Luiz Carlos
Format:	Digital revista
Language:	por
Published:	Pesquisa Agropecuaria Brasileira 2014
Online Access:	https://seer.sct.embrapa.br/index.php/pab/article/view/15294
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