Interacão genótipos e locais para rendimento de grãos de linhagens de soja com diferentes ciclos de maturação

Rocha, M. de M.; Vello, Natal Antônio

doi:10.1590/s0006-87051999000100009

Cited by 22 publications

(19 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The three semi-early cultivars also showed attainable yield equal or higher than intermediate cycle cultivars in both seasons (Table 3). Since genotype sensitivity to environment plays a major role in crop performance (Rocha & Vello, 1999), the semi-early yielded better than other cultivars in this study. Knowledge on the performance of the different maturity groups under conditions favorable for ASR epidemic and fungicide control is important for planning decisions of which variety to use and when to plant, with the aim to maximize yield and profits.…”

Section: Resultsmentioning

confidence: 99%

Managing soybean rust with fungicides and varieties of the early/semi-early and intermediate maturity groups

Koga¹,

Canteri²,

Calvo

et al. 2014

Trop. plant pathol.

View full text Add to dashboard Cite

The objectives of this study were to evaluate the influence of soybean cultivar of two maturity groups, early/semi-early (E) or intermediate (I), on the management of Asian soybean rust (ASR) with fungicides and yield. Field trials were conducted during the 2006/07 and 2007/08 growing seasons. Seven cultivars of the two groups were tested in the first season and eight in the second season. All cultivars had plots that were treated (T) or non-treated (NT) with a commercial mixture of pyraclostrobin + epoxiconazole. ASR severity (%) was visually assessed several times during the crop cycle and yield (kg ha -1 ) was determined at harvest. Values of the standardized area under the disease progress curve (AUDPC) calculated from the severity assessments was higher in 2007/08 than in 2006/07, but no differences were found between cultivars of the E and I maturity groups. Differences in yield between between T and NT plots were lower in cultivars of the E group than those of the I group in both the 2006/07 (37.6% and 52.8% respectively) and the 2007/08 season (56.9% and 85.0%, respectively). A higher stability in yield was found for cultivars of the E maturity group compared to those of the I group.

show abstract

Section: Resultsmentioning

confidence: 99%

Managing soybean rust with fungicides and varieties of the early/semi-early and intermediate maturity groups

Koga¹,

Canteri²,

Calvo

et al. 2014

Trop. plant pathol.

View full text Add to dashboard Cite

show abstract

“…Thus, including the population effects prevents the discard of progeny in high-merit populations, just as the inclusion of the genotype × environment interaction effect prevents the discard of progeny in unfavourable environmental conditions. Moreover, ignoring the population effect in the statistical model compromises the prediction of genetic values and the estimate of variance components (Duarte & Vencovsky, 2001;Rocha & Vello, 1999). On this basis, the inclusion of the true explanatory effects of total genetic variance allows for the prediction of the real genetic values weighted by the merit of each effect.…”

Section: Results Obtained For Variances Estimated By the Sipp-blup Indexmentioning

confidence: 99%

“…Moreover, when the population effect is not included, selection gain is likely lower and the breeding-value order of progeny is altered (Duarte & Vencovsky, 2001;Pereira et al, 2017;Rocha & Vello, 1999). Therefore, it is important to apply a selection index of progeny that takes into account the effects of progeny and populations simultaneously (Resende et al, 2016a).…”

Section: Introductionmentioning

confidence: 99%

Selection of inbred soybean progeny (Glycine max): an approach with population effect

et al. 2018

View full text Add to dashboard Cite

To meet the growing demand of the soybean consumer market, cultivars increasingly early, productive and resistant to biotic and abiotic stress are sought. Several populations are obtained in soybean breeding programmes, but progeny are selected without being weighted for their respective population effect. As a consequence, progeny originating from high-merit populations may be discarded too early. Given this scenario, this study proposes to employ the selection index with progeny and population effect via best linear unbiased prediction (SIPP-BLUP) for the genetic selection of early and productive soybean progeny. A total of 180 progeny derived from three populations were evaluated for yield-related traits. Genetic gains from selection, Spearman correlation and coincidence index were used to check the efficiency of the models with and without the population effect. The SIPP-BLUP index achieved greater selection accuracy and was efficient in the identification and future selection of early soybean progeny. Therefore, this study demonstrates that soybean breeding programmes should consider the population effect via SIPP-BLUP in progeny selection to obtain future lines that really contribute to genetic gain. K E Y W O R D Saccuracy, breeding values, earlier-maturing progeny, genetic gain, genotype × environment interaction, mixed models, soybean seed yield

show abstract

“…Conhecer o ciclo de maturação ajuda o produtor no planejamento da safra. As variações ambientais (doenças, pragas, chuvas excessiva, secas, efeitos do fotoperíodo) são levadas mais em consideração, com maior possibilidade de sucesso pelo agricultor Rocha & Vello (1999).…”

Section: Introductionunclassified

Desempenho De Cultivares De Soja Em Latossolos Vermelhos Com Diferentes Classes Texturais

Flores

Tiritan

Câmara³

et al. 2013

BJA

View full text Add to dashboard Cite

Com o objetivo de avaliar o desempenho de cultivares de soja dos ciclos precoce, semiprecoce e médio em Latossolos Vermelhos com diferentes classes texturais, realizou-se experimento no município de Naviraí-MS, no ano agrícola 2008/2009. Adotou-se delineamento experimental em blocos inteiramente casualisados, com quatro repetições. Os cultivares de soja utilizados foram CD 202, CD 208 e CD 214RR de ciclo precoce, BRS 239, BRS CharruaRR e BRS 245RR de ciclo semiprecoce, além dos cultivares CD 219RR e Monsoy 8001 de clico médio. A semeadura foi realizada em novembro de 2008, em sistema de plantio direto sobre a resteva de milho. Foram avaliados os parâmetros número de vagens por planta, número de grãos por vagens, peso de mil grãos e produtividade. Independente da classe textural do solo, a fertilização e manutenção de médios a altos teores de nutrientes nos Latossolos Vermelhos Eutróficos de textura média a muito argilosa possibilita a expressão fenotípica de altas produtividades agrícolas de grãos pelas cultivares de soja.

show abstract

Interacão genótipos e locais para rendimento de grãos de linhagens de soja com diferentes ciclos de maturação

Cited by 22 publications

References 3 publications

Managing soybean rust with fungicides and varieties of the early/semi-early and intermediate maturity groups

Managing soybean rust with fungicides and varieties of the early/semi-early and intermediate maturity groups

Selection of inbred soybean progeny (Glycine max): an approach with population effect

Desempenho De Cultivares De Soja Em Latossolos Vermelhos Com Diferentes Classes Texturais

Contact Info

Product

Resources

About