Phenological development of Brassica campestris, B. juncea, B. napus and B. carinata grown in controlled environments and from 14 sowing dates in the field

Nanda, R.; Bhargava, S. C.; Tomar, Deepali; Rawson, HM

doi:10.1016/0378-4290(95)00090-9

Cited by 31 publications

(13 citation statements)

References 22 publications

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“…Rapeseed growth is controlled from the seedling emergence to flowering by photo-thermal factors and from flowering to maturity by temperature [12]. In winter rapeseed, the juvenile growth with emergence, overwintering and stem elongation is the longest growth phase.…”

Section: Introductionmentioning

confidence: 99%

Dissection of Year Related Climatic Variables and Their Effect on Winter Rapeseed (Brassica Napus L.) Development and Yield

Marjanović-Jeromela

Terzić

Jankulovska³

et al. 2019

Agronomy

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Winter oilseed rape (WOSR) production is dependent on weather conditions, but is also characterized by low nitrogen (N) use efficiency. The objectives of this study were to: (i) evaluate sources of variability for the seed yield and oil content of four rapeseed cultivars under the influence of three sowing dates (SD trial) and five nitrogen dosages (N trial) during four growing seasons; (ii) understand year-related interactions and the effect of climatic variables in different growth stages; and (iii) assess the presence of interactions cultivar by year (C × Y) and treatment by year (T × Y). Six climatic factors were observed, during germination, overwintering, budding, flowering and ripening. The mixed effect split-plot analysis of variance was used, as well as factorial regression models. The C × Y interaction was the most important for the oil content in both trials. The precipitation at budding stage (75.8%), relative air humidity at overwintering (63.3%) and flowering stage (53.0%) accounted for the highest proportion of T × Y interaction for the seed yield, as well as precipitation at flowering (92.0%) and ripening (85.0%) for the oil content. Water availability was the main determinant of the seed yield and/or oil content accompanied with cooler temperatures during the seed development. The study successfully dissected the effect of year-related climatic variables on the agronomical traits in winter rapeseed. Based on this, appropriate agronomic practices can be applied at specific growing stages to ensure a high seed and oil yield.

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Section: Introductionmentioning

confidence: 99%

Dissection of Year Related Climatic Variables and Their Effect on Winter Rapeseed (Brassica Napus L.) Development and Yield

Marjanović-Jeromela

Terzić

Jankulovska³

et al. 2019

Agronomy

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“…Although both temperature and photoperiod can be readily controlled in a growth cabinet, the photoperiodic response can be affected by radiant flux density, leading in some cases to different phenological responses to daylength between growth cabinets and field conditions (Nanda et al, 1996). Under field conditions, unlike in a growth cabinet, neither the photoperiod nor the temperature can be controlled, but the interactions between these environmental parameters are the ones to which we are really interested.…”

Section: Introductionmentioning

confidence: 99%

Key phenological events in globe artichoke (Cynara cardunculus var.scolymus) development

Virdis

Motzo

Giunta

2009

Annals of Applied Biology

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A priority for the field vegetable grower is to be able to schedule a regular supply of product throughout the growing season. This requires a predictive framework, based on the identification of key developmental events of the crop, and an understanding of how genotypic and environmental factors interact to determine plant development. Four globe artichoke (Cynara cardunculus var. scolymus) cultivars, representing the existing phenological range, were grown in a field experiment, and a range of environmental conditions was imposed by varying both the timing of the first irrigation (which determines the initiation of regrowth) and by repeating the experiment across two locations and 2 years. The timing of the appearance of the main stem capitulum was sensitive to both the growing environment and the cultivar. These differences persisted till flowering and were correlated with final leaf number. As the plant developed, the phyllochron decreased, resulting in three values of phyllochron, each of which was responsive to genotype, and hardly to environment. The timing of the first change in phyllochron was associated with the final leaf number and the appearance of the capitulum. For all the cultivars, the rate of development fell and the final leaf number increased as the length of the photoperiod increased. The later flowering cultivars shared a similar vernalisation requirement, but 'Spinoso sardo' did not require a cold period to flower. Leaf length reached a peak before the beginning of stem elongation, and maximum leaf length was correlated with final leaf number. The sensitiveness of the phyllochron to the genotype, and of the number of leaves and the timing of the appearance of the capitulum to both genotype and environment makes them suitable as variables in developmental models. The importance of the final number of leaves is not only because of its phenological significance, but also because of its effect on the ability of the canopy to intercept radiation. Key phenological events in globe artichoke developmentA. Virdis et al.

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“…The projected climate change also indicates an increase in extreme weather conditions such as high temperatures during the growing season (Qian et al, 2010). Studies based on crop experiments show that the development of Brassica species responds significantly to the environment, especially to temperature (Morrison et al, 1989;Nanda et al, 1996), as heat stress during flowering can result in a reduction in seed yield (Morrison and Stewart, 2002). Therefore, the projected warmer future climate is suspected to be unfavorable to cool-season crops such as canola.…”

Section: Simulated Canola Yield Responses To Climate Change and Adaptmentioning

confidence: 99%

Simulated Canola Yield Responses to Climate Change and Adaptation in Canada

et al. 2018

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A projected future warmer climate implies signifi cant impacts on canola (Brassica napus L.) production in Canada. We aimed to use a modeling approach to simulate climate change impacts on canola yield in Canada and to evaluate potential adaptation measures. Th e CSM-CROPGRO-Canola model was used to simulate the responses of canola to the projected climate change at Brandon on the Prairies, and West Nipissing and Normandin in eastern Canada. Future climate scenarios for the near (2041-2070) and distant (2071-2100) future under two representative concentration pathways (RCP4.5 and RCP8.5) were developed based on climate change simulations by a regional climate model CanRCM4. Seeding dates were estimated from air temperature, precipitation, and soil moisture to account for the potential of earlier seeding as an adaptation measure. Compared to the baseline climate, simulated seed yield reduction was 42, 21, and 24% in the near future and of 37, 27, and 23% in the distant future, under RCP4.5, respectively for Brandon, West Nipissing, and Normandin. A larger reduction was simulated under RCP8.5, especially in the distant future at Brandon and West Nipissing. Th e simulated seed yield reduction was associated with increases in heat and water stresses under rainfed conditions with current N fertilizer application rates. Coping with heat and water stresses is a big challenge for canola production in Canada under the projected climate change, especially on the Canadian Prairies.

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Phenological development of Brassica campestris, B. juncea, B. napus and B. carinata grown in controlled environments and from 14 sowing dates in the field

Cited by 31 publications

References 22 publications

Dissection of Year Related Climatic Variables and Their Effect on Winter Rapeseed (Brassica Napus L.) Development and Yield

Dissection of Year Related Climatic Variables and Their Effect on Winter Rapeseed (Brassica Napus L.) Development and Yield

Key phenological events in globe artichoke (Cynara cardunculus var.scolymus) development

Simulated Canola Yield Responses to Climate Change and Adaptation in Canada

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