Comparison between the SPD and the SPDS methods for segregating generation advancement in soybean

Brazilian Archives of Biology and Technology

Deonisio Destro¹  Henrique Stoco Bizeti¹  Leandro Anderlin Garcia¹  Inês Cristina De Batista Fonseca¹  Ricardo Montalván¹  Édison Miglioranza¹ 

[1] ,Universidade Estadual de Londrina Department of Agronomia Londrina PR ,Brazil

关键词: Glycine max;    breeding methods;    food type soybean;   

DOI  :  10.1590/S1516-89132003000400008

来源: SciELO

【 摘 要 】

The purpose of this work was to compare the SPD (Single Pod Descent) and SPDS (Single Pod Descent with Selection) methods for segregating generation advancement in soybean breeding. Sixteen populations derived from crosses among Japanese and adapted Brazilian soybean were used. The traits, number of days to flowering (NDF) and to maturity (NDM), plant height at flowering (PHF) and at maturity (PHM), and individual plant yield (IPY) were assessed. The populations obtained by SPDS showed values close to the variation in the populations obtained by SPD. Regression through the origin showed that both methods were equivalent for NDM in the F3 generation and for NDF in the F4 generation. For all other trait/generation combinations, SPDS yielded superior means. Therefore, it was preferable to use SPDS because it allowed the advance of generations with smaller population size.

【 授权许可】

CC BY-NC   
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