Loading…
Early selection of resilient progenies to seed yield in soybean populations/Selecao precoce de progenies resilientes para produtividade de sementes em populaçoes de soja
This study carried out early selection of soybean progenies that are productive and resilient to environmental conditions. The experiment took place at the Genetic Breeding Program of UNIJUI (University of the Northwest of the State of Rio Grande do Sul), located in Ijui - RS, Brazil. The experiment...
Saved in:
Published in: | Ciência rural 2024-08, Vol.54 (8), p.1 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | This study carried out early selection of soybean progenies that are productive and resilient to environmental conditions. The experiment took place at the Genetic Breeding Program of UNIJUI (University of the Northwest of the State of Rio Grande do Sul), located in Ijui - RS, Brazil. The experiment used augmented blocks design with interim checks. The regular treatments correspond to 24 soybean [F.sub.2] populations and the common treatments were 18 commercial checks, arranged in four replications. At full physiological maturity, in each experimental unit, five plants were randomly collected to obtain seed weight per plant (SWP, g). The Jinks and Pooni methodology was used to calculate the probability of extracting superior lineages from the evaluated populations. The best control and promising cultivars to compose the parent bank are BMX FORCA RR, FUNDACEP 66 RR and TMG 7062 IPRO. Jinks and Pooni's methodology identified populations [IRC.sub.001], [IRC.sub.002], [IRC.sub.017], [IRC.sub.019], [IRC.sub.028], [IRC.sub.030], [IRC.sub.032], [IRC.sub.033], [IRC.sub.035], [IRC.sub.036], [IRC.sub.039] and [IRC.sub.040] as having high extraction of superior lineages. Key words: Glycine max, genetic parameters, Jinks and Pooni method, plant breeding. O objetivo desse estudo foi realizar a seleção precoce de progénies de soja produtivas e resilientes as condiçoes ambientais. O experimento foi realizado no Programa de Melhoramento Genético da Universidade do Noroeste do Estado do Rio Grande do Sul (UNIJUI), localizado em IjuÃ, Rio Grande do Sul, Brasil. Foi utilizado o delineamento incompleto de blocos aumentados com testemunhas intercalares. Os tratamentos regulares correspondem a 24 populaçoes de soja F2 e os tratamentos comuns foram 18 testemunhas comerciais, arranjadas em quatro repetiçoes. Em plena maturidade fisiológica, em cada unidade experimental, cinco plantas foram coletadas aleatoriamente para obtenção do peso de sementes por plantas. Utilizou-se a metodologia de Jinks e Pooni para calcular a probabilidade de extração de linhagens superiores das populaçoes avaliadas. As cultivares de melhor controle e promissoras para compor o banco parental foram BMX FORÃA RR, FUNDACEP 66 RR e TMG 7062 IPRO A metodologia de Jinks e Pooni identificou as populaçoes [IRC.sub.001], [IRC.sub.002], [IRC.sub.017], [IRC.sub.019], [IRC.sub.028], [IRC.sub.030], [IRC.sub.032], [IRC.sub.033], [IRC.sub.035], [IRC.sub.036], [IRC.sub.039], e [IRC.sub.040] como de alto |
---|---|
ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20230287 |