Respostas fenológicas de cultivares brasileiras de trigo à vernalização e ao fotoperíodo

Ribeiro, T. L.; Cunha, G. R. da; Pires, J. L. F.; Pasinato, A.

doi:10.1590/s0100-204x2009001100003

Cited by 13 publications

(5 citation statements)

References 17 publications

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“…In 2019, four cultivars (BRS 48, BRS 52, BRS 55, and BRS 68) were registered, a result of over 30 years of studies in the Germplasm Bank (BGU) (Ribeiro 2019). This study plays an essential role in the long-term conservation of the umbuzeiro by lling information gaps about a natural population of the species in the state, through a detailed characterization of its trees, fruits, endocarps, and seedlings.…”

Section: Introductionmentioning

confidence: 99%

Spondias tuberosa Arr. Câm.: a natural population in Sergipe - contributions to the understanding of genetic variability and conservation of the species

Santana,

Nunes,

Silva

et al. 2024

Preprint

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The umbuzeiro, a fruit-bearing tree endemic to the Caatinga biome, stands out for its socioeconomic and environmental relevance. Although natural to Sergipe, there is a lack of information about its populations in the state. This study aimed to characterize a natural population of umbu trees in Sergipe, covering individual characteristics to the attributes of their fruits, endocarps, and seedlings. Of the 551 fruits collected from these matrices, the majority had predominantly yellow (62%) with orange (23%) peels. The endocarps, averaging 1.83 cm in length by 1.17 cm in width, significantly influenced the fresh mass of the seedlings, with larger area endocarps associated with greater mass. Endocarps stored for different periods showed no variation in germination rate and speed. These findings not only enrich the understanding of this population but also provide crucial insights for conservation and genetic improvement programs of the species in Sergipe.

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Section: Introductionmentioning

confidence: 99%

Spondias tuberosa Arr. Câm.: a natural population in Sergipe - contributions to the understanding of genetic variability and conservation of the species

Santana,

Nunes,

Silva

et al. 2024

Preprint

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“…Durum wheat grain yield are dependent on the environment, genetic factors and the interaction between them (Coventry et al, 2011). Optimum sowing date positively affect grain yield of wheat, resulting in better adjustment to the physiology, phenology and environmental conditions (Ribeiro et al, 2009, Silva et al, 2011. The appropriate sowing date also affects the water, temperature and solar radiation available for the crop.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sowing Date on Grain Yield, its Components and Some Morpho-Phenological Traits of Durum Wheat (Triticum durum Desf.) In Semi-Arid Zone in Algeria

Oulmi¹,

Frih²,

Guendouz³

et al. 2022

IJBSM

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This study was conducted at Setif Agricultural Experimental Station in 2017−2018 crop season, the experimental material used in this study consisted of 5 cultivars (Triticum durum Desf.) based on their difference between early and late cultivation. The genotypes tested were sowing in in a random block design with three replications, each plot consisted of 2 rows of 2.5 m long spaced of 20 cm. The aim of this study is to assess the impact of the choice of sowing date on grain yield, these components as well as some morpho-phenological traits in order to have an idea on the best sowing date. Two-way analysis of variance showed that the effect of sowing date was significant (p<0.001−0.05) with the variables above ground biomass (BIO), spike weight (SW), Thousand kernels weight (TKW), Flag leaf area (LA), plant height (PH), number of days to heading (DH) and canopy temperature (CT), this effect caused the decrease of major parameters studied and mainly grain yield (GY), accompanied by decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH. Ofanto is shown to be the most suitable genotype for the late sowing date (January). The correlation analysis show that GY was significantly, strongly and positively correlated (p<0.001) under both sowing date with BIO and SW. CT was negatively correlated with GY, BIO, SW and HI (p<0.05) who suggest that our plants underwent water stress during the second sowing date.

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“…A elevação da temperatura global interfere no ciclo das plantas, com reflexos diretos e nem sempre positivos sobre sua fenologia (BUITENWERF et al, 2015). Dentre os elementos meteorológicos que interferem no desenvolvimento da cultura do trigo, estão a temperatura e o fotoperíodo (RIBEIRO et al, 2009). O fato de o trigo necessitar de exposição a horas de frio não congelante para que ocorra indução ao florescimento (PAULSEN, 1987) e, principalmente, ter sua maior vulnerabilidade a altas temperaturas durante o período reprodutivo, em especial no espigamento (MARCELLOS; SINGLE, 1972;MOTA, 1989), impõe à cultura riscos em cenários de mudança de clima, pelo aumento de temperatura esperado (MARENGO et al, 2007;TRAVAS-SO et al, 2008;SOLOMON et al, 2009) e observado (MAREN-GO; CAMARGO, 2008) para a região do estudo.…”

Section: Introductionunclassified

Impacto de cenários futuros de clima no zoneamento agroclimático do trigo na região Sul do Brasil

Santi¹,

Vicari²,

Pandolfo³

et al. 2018

AgroM

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As mudanças climáticas ampliam o risco sobre a oferta global de alimentos por afetarem significativamente as condições de crescimento e desenvolvimento das plantas. O trigo tem papel preponderante na alimentação humana e animal e é altamente responsivo aos elementos climáticos, sendo então vulnerável à mudança de clima. O objetivo deste trabalho foi avaliar o impacto de cenários futuros de clima no zoneamento agroclimático da cultura do trigo na região Sul do Brasil. O estudo considerou dois cenários climáticos futuros estabelecidos pelo Painel Intergovernamental sobre Mudança do Clima, centrados no período 2071 - 2100: o A2, ou mais pessimista, e o B2, ou mais otimista, que foram comparados ao cenário Atual (1961 - 1990). O período de cultivo do trigo indicado pelo zoneamento agroclimático será reduzido em toda a região Sul do País, com a temperatura sendo a principal responsável pela limitação do número de decêndios aptos à semeadura. A cultura do trigo terá sua área de semeadura potencial reduzida principalmente no Paraná, em ambos cenários, e no oeste do Rio Grande do Sul somente no pior cenário.

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Respostas fenológicas de cultivares brasileiras de trigo à vernalização e ao fotoperíodo

Cited by 13 publications

References 17 publications

Spondias tuberosa Arr. Câm.: a natural population in Sergipe - contributions to the understanding of genetic variability and conservation of the species

Spondias tuberosa Arr. Câm.: a natural population in Sergipe - contributions to the understanding of genetic variability and conservation of the species

Effect of Sowing Date on Grain Yield, its Components and Some Morpho-Phenological Traits of Durum Wheat (Triticum durum Desf.) In Semi-Arid Zone in Algeria

Impacto de cenários futuros de clima no zoneamento agroclimático do trigo na região Sul do Brasil

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