2009
DOI: 10.1590/s0100-204x2009001100003
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Respostas fenológicas de cultivares brasileiras de trigo à vernalização e ao fotoperíodo

Abstract: Phenological responses of Brazilian wheat cultivars to vernalization and photoperiodThere was an interaction between photoperiod and cultivar cycle for the first sowing date. For all the cultivars, the cycle was reduced with the increase of the photoperiod. However, for the second and third sowing dates, there was also an interaction between cultivars and vernalization. These variables accelerated the crop cycle, and affected the duration of important subperiods for the composition of yield grain components.

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Cited by 13 publications
(5 citation statements)
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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%
“…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%
“…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%
“…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