Leaf senescence and N uptake parameters as selection traits for nitrogen efficiency of oilseed rape cultivars

Erley, Gunda Schulte auf ́m; Wijaya, Ketut-Anom; Ulaş, Abdullah; Becker, Heiko C.; Wiesler, Franz; Horst, Walter J.

doi:10.1111/j.1399-3054.2007.00921.x

Cited by 66 publications

(33 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Large research projects investigating and generating genetic diversity for NUE in rapeseed have been recently completed or are currently in progress, in France ( R A P S O D Y N : w w w. r a p s o d y n . f r ) , i n G e r m a n y (PreBreedYield: Samans et al 2013), and in the UK (NUECrops: http://research.ncl.ac.uk/nefg/nuecrops/). Good et al (2007) demonstrated the promise of alternative breeding technologies in generating new diversity by improving the NUE of rapeseed through the overexpression of a barley alanine aminotransferase gene in the roots.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen use efficiency in rapeseed. A review

Bouchet

Laperche

Bissuel-Bélaygue

et al. 2016

Agron. Sustain. Dev.

179

View full text Add to dashboard Cite

Mineral nitrogen fertilization has improved crop yield over the last century but has also caused air and water pollution. Reduction of nitrogen inputs and maintaining high yields are therefore essential to ensure a more sustainable agriculture. Improving the nitrogen use efficiency (NUE) of crops is therefore needed. Rapeseed, Brassica napus, depends on nitrogen fertilization due to its low NUE, with the ratio of plant nitrogen content to nitrogen supplied often not exceeding 60 %. Here, we review the major phenotypic traits associated with NUE in B. napus, with special emphasis on winter oilseed rape. We discuss the genetic diversity available and potential breeding strategies. The major points are the following: (1) rapeseed seed yield elaboration is complex, with overlapping phases of nitrogen uptake and remobilization during the crop cycle; (2) traits related to nitrogen uptake, such as root length and the amount of nitrogen absorbed after flowering, and traits related to nitrogen remobilization, such as the "staygreen" phenotype, have been identified as possible levers to improve NUE in rapeseed; (3) a substantial body of studies investigating the genetic control of NUE traits have already published and potential candidate genes identified; and (4) rapeseed genetic diversity may be enriched by exploiting interpopulation genetic variation and the closely related gene pools of Brassica rapa and Brassica oleracea.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Genetic variation in the activity of various nitrate and ammonium transporters, which move N across membranes, could be relevant for nitrogen uptake efficiency in rapeseed (Schulte auf 'm Erley et al 2007) and should be further studied (reviewed in Xu et al 2012).…”

Section: Nitrogen Uptake Efficiency Must Be Improved To Maintain a Himentioning

confidence: 99%

Nitrogen use efficiency in rapeseed. A review

Bouchet

Laperche

Bissuel-Bélaygue

et al. 2016

Agron. Sustain. Dev.

179

View full text Add to dashboard Cite

show abstract

“…N fertilization was calculated using the balance sheet method that is commonly used in France for the main arable crops (Rémy and Hébert 1977;Parnaudeau et al 2009). The N doses were calculated as follows:…”

Section: Management Of N Fertilizationmentioning

confidence: 99%

Genetic control of yield and yield components in winter oilseed rape (Brassica napus L.) grown under nitrogen limitation

et al. 2014

View full text Add to dashboard Cite

Despite its high nitrogen absorption capacity, oilseed rape (OSR) has a low apparent nitrogen use efficiency (NUE), which makes its production highly dependent on nitrogen fertilization. Improving NUE in OSR is therefore a main target in breeding. The objectives of the present work were to determine the genomic regions (QTLs) associated with yield and to assess their stability under contrasted nitrogen nutrition regimes. One mapping population, AM, was tested in a French location for three growing seasons (2011, 2012 and 2013), under two nitrogen conditions (optimal and low). Eight yield-related traits were scored and nitrogen-responsive traits were calculated. A total of 104 QTLs were detected of which 28 controlled flowering time and 76 were related to yield and yield components. Very few genotype 9 nitrogen interactions were detected and the QTLs were highly stable between the nitrogen conditions. In contrast, only a few QTLs were stable across the years of the trial, suggesting a strong QTL 9 year interaction. Finally, eleven critical genomic regions that were stable across nitrogen conditions and/or trial years were identified. One particular region located on the A5 linkage group appears to be a promising candidate for marker assisted selection programs. The different strategies for OSR breeding using the QTLs found in the present study are discussed.

show abstract

“…O teor de clorofila total indica a eficiência na absorção da radiação solar pelas folhas e, como consequência, uma maior taxa fotossintéti-ca e maiores rendimentos de grãos (Mahama et al, 2016). A avaliação indireta de clorofila é uma importante ferramenta para determinações de práticas de manejo do milho e de outras culturas, visando à obtenção de altas produtividades aliadas à utilização racional de fertilizantes nitrogenados (Schulte et al, 2007).…”

unclassified

Plantas De Cobertura Sobre Atributos Agronômicos Do Milho Na Região Sudoeste Da Amazônia

Aker

Passos

Marcolan

et al. 2016

RBMS

View full text Add to dashboard Cite

RESUMO -O sistema plantio direto é uma estratégia sustentável de produção que preconiza a manutenção da cobertura vegetal como prática conservacionista do solo. Objetivou-se avaliar o efeito de plantas de cobertura sobre atributos fisiológicos e agronômicos do milho na região sudoeste da Amazônia. Foram avaliadas 15 estratégias de sucessões de culturas com o milho e a influência sobre o rendimento de biomassa, de grãos, altura de plantas e inserção da espiga, índice de espiga, massa de 100 grãos, teor foliar de nitrogênio e clorofilas total, a e b em plantas de milho.Observou-se efeito das plantas de cobertura sobre o rendimento de grãos, de biomassa fresca e seca, na massa de grãos e nos teores de clorofila. Os efeitos sobre os teores de clorofila foram mais pronunciados na clorofila b e nos estádios fenológicos finais da cultura. O feijão-de-porco promoveu as maiores produtividades de grãos (7.539,3 kg ha -1 ) e potencial de silagem (16,2 Mg ha -1 de biomassa seca). A adequada escolha das espécies que compõe um sistema de plantio direto é preponderante para o apropriado desempenho agronômico do milho na região sudoeste da Amazônia. Palavras-chave:Zea mays, intensificação ecológica, sustentabilidade, integração lavoura-pecuária, plantio direto. CROPPING SYSTEMS ON THE PERFORMANCE OF CORN PLANTS IN THE SOUTHWESTERN AMAZONABSTRACT-A sustainable strategy for agricultural systems is the use of cover crops in no-tillage systems, as a conservationist soil practice. This paper aimed to evaluate the short-term effects of different cover crops on some physiological and agronomic attributes of corn crop in the Southwestern Amazon region. The effects of 15 cover plants on the biomass and grains yield, plant height, ear insertion height, ear index, mass of 100 grains, leaf nitrogen content and a, b and total chlorophyll levels of corn plants were evaluated. A randomized complete block design was used with four replications. Grain yield, fresh and dry biomass yield, mass of 100 grains and chlorophyll content were affected by some cover crops. Jack bean promoted the highest grain yield (7,539.3 kg ha -1 ) and biomass yield (16.2 Mg ha -1 dry matter) among the options assessed. Cover crops provided different levels of total, a and b chlorophyll levels, on the corn plants. Some cover crops presented the potential to improve the agronomic performance of the succeeding corn crop in the Southwestern Amazon region. The proper agronomic performance of corn in a no-till system depends on the adequate choice of cover plants to compose the system. Sorgo, v.15, n.3, p. 531-542, 2016 RESUMO -O sistema plantio direto é uma estratégia sustentável de produção que preconiza a manutenção da cobertura vegetal como prática conservacionista do solo. Objetivou-se avaliar o efeito de plantas de cobertura sobre atributos fisiológicos e agronômicos do milho na região sudoeste da Amazônia. Foram avaliadas 15 estratégias de sucessões de culturas com o milho e a influência sobre o rendimento de biomassa, de grãos, altura de plantas e inserção da e...

show abstract

Leaf senescence and N uptake parameters as selection traits for nitrogen efficiency of oilseed rape cultivars

Cited by 66 publications

References 41 publications

Nitrogen use efficiency in rapeseed. A review

Nitrogen use efficiency in rapeseed. A review

Genetic control of yield and yield components in winter oilseed rape (Brassica napus L.) grown under nitrogen limitation

Plantas De Cobertura Sobre Atributos Agronômicos Do Milho Na Região Sudoeste Da Amazônia

Contact Info

Product

Resources

About