Relationships among oil content, protein content and seed size in soybeans

During 1995/96 and 1996/97, experiments were carried out at Londrina State University, aiming at quantifying the oil and protein contents in two groups of soybean genotypes; estimating the phenotypic, genotypic and environmental correlations existent among oil, protein content and seed size, and ide...

Full description

Bibliographic Details
Main Authors: Mario Marega Filho, Deonisio Destro, Lilian Azevedo Miranda, Wilma Aparecida Spinosa, Mercedes Concórdia Carrão-Panizzi, Ricardo Montalván
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2001-03-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000100004
Description
Summary:During 1995/96 and 1996/97, experiments were carried out at Londrina State University, aiming at quantifying the oil and protein contents in two groups of soybean genotypes; estimating the phenotypic, genotypic and environmental correlations existent among oil, protein content and seed size, and identifying genotypes for direct human consumption with high protein content. The evaluated characters were Weight of a Hundred Seeds (WHS), expressed in grams/100 seeds, Oil Content (OC) and Protein Content (PC), expressed in %. In the experiment carried out in the field, OC ranged from 12 to 20.37 % and PC from 35.66 to 41.75% while in the experiment carried out in the greenhouse OC ranged from 12.26 to 21.79 % and PC from 32.95 to 41.56 % . The correlations between oil and protein were negative and significant. The relationship among WHS with OC and PC was low and higly affected by the time effect. Due to their high protein content and stability to oil and protein contents, there were distinction among the treatments carried out in the field (GA23 and GA20), and those carried out in the greenhouse (PI408251, Waseda, B6F4 (L-3 less), PI423909 and Tambagura).<br>Durante 1995/96 e 1996/97, foram conduzidos experimentos na Universidade Estadual de Londrina, visando: quantificar os teores de óleo e proteína em dois grupos de genótipos de soja tipo alimento; estimar as correlações fenotípicas e genotípicas existentes entre os teores de óleo, proteína e tamanho das sementes; e, identificar genótipos para consumo humano de forma direta, com elevado teor de proteína. Foram avaliados os caracteres Peso de Cem Sementes (PCS, expresso em gramas / 100 sementes), Teor de Óleo (TO), e Teor de Proteína (TP), expressos em %. Na população conduzida a campo, a característica TO variou de 12 a 20,4 %, e TP de 35,7 a 41,8 %. A população conduzida em casa de vegetação apresentou uma variação de 12,3 a 21,8 % para TO, e de 33 a 41,6 % para TP. As correlações entre TO e TP foram negativas e significativas. A relação do PCS com TO e TP mostrou-se baixa e muito afetada pelos efeitos dos anos. Devido aos seus altos teores de proteína e estabilidade para os teores de óleo e proteína, destacaram-se, dentre os tratamentos conduzidos a campo, GA23 e GA20; e, dentre os tratamentos conduzidos em casa de vegetação, PI408251, Waseda, B6F4 (L-3 less), PI423909 e Tambagura.
ISSN:1516-8913
1678-4324