Fatty acids composition of oilseed rape genotypes as affected by solar radiation and temperature

Gauthier, Marion; Pellet, Didier; Monney, Corinne; Herrera, Juan M.; Rougier, M.–B.; Baux, Alice

doi:10.1016/j.fcr.2017.07.013

Cited by 25 publications

(18 citation statements)

References 37 publications

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“…). This result suggests that cultivar‐specific responses to photo‐thermal conditions during the seed‐filling period are involved in quinoa as it was reported among sunflower hybrids and oilseed rape cultivars . Future studies should evaluate the underlying mechanism, which explains the differential thermal stability of desaturase enzymes in sea‐level quinoa cultivars in response to their fatty acid composition.…”

Section: Resultssupporting

confidence: 54%

Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

et al. 2019

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BACKGROUND: There is renewed interest in quinoa as a potential source of vegetable oils; however, there is no information about how environmental conditions affect its fatty acid composition, a critical indicator of its oil quality. The fatty acid concentrations of four cultivars adapted to temperate environments were compared at three sowing dates to evaluate the effect of environmental conditions during the seed-filling period on the variation in oil quality. RESULTS: The interaction between cultivar and sowing date was the main source of variation explaining the changes in the lipid content and fatty acid concentrations in quinoa. Most of the variation in the concentration of unsaturated fatty acids was attributed to the temperature and solar radiation during the seed-filling period; cultivar-specific responses to photo-thermal conditions were observed among the sea-level quinoa cultivars evaluated.CONCLUSION: The lipid content and concentration of fatty acids in quinoa are affected by sowing date. This effect is exerted through changes in temperature and solar radiation conditions. This managing practice can therefore be used to achieve quinoa oil with different qualities.

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Section: Resultssupporting

confidence: 54%

Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

et al. 2019

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“…() reported that when both years were combined, the oil content was independent of SD for irrigated spring‐seeded canola, brown mustard, and camelina. The reason offered for the reduction of grain oil concentration for late sowing oilseed crops is that high temperature during grain filling reduced oil synthesis of oilseed crops (Aksouh‐Harradj, Campbell, & Mailer, ; Gauthier, Pellet, Monney, Herrera, & Rougier, ; Saldivar, Wang, Chen, & Hou, ; Yaniv, Schafferman, & Zur, ), which may have been the case in our study. The cultivar effect on oil concentration of camelina in this study was not uncommon as several studies have reported differences in oil concentration among camelina genotypes (Gesch, ; Guy et al., ; Jiang, Caldwell, & Falk, ; Sintim et al., ), but the factors imposed in our study may have had a more profound effect on cultivar response hence, the difference.…”

Section: Discussionmentioning

confidence: 61%

Sowing date and sowing method influence on camelina cultivars grain yield, oil concentration, and biodiesel production

Neupane

Solomon

Mclennon

et al. 2019

Food and Energy Security

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Sowing date and sowing method can have a profound influence on the productivity of alternative crops like camelina in semiarid agroecosystems. The objective of this study was to determine the effects of sowing date, sowing method, and cultivar on morphology, phenology, grain yield, oil concentration, oil, and biodiesel production of camelina. A 2‐year study was carried out at the University of Nevada, Reno Main Station Field Laboratory, during the spring to early summer of 2016 and 2017. Treatments were two sowing dates (SD) of 18 March 2016 (early SD) and 17 April 2016 (late SD) in Year 1 and 11 April 2017 (early SD) and 11 May 2017 (late SD) in Year 2. The change in SD in the second year was due to the excessively wet field condition preventing land preparation and sowing. There were two sowing methods (SM) imposed (broadcast and drill) and three cultivars of camelina (Blaine Creek, Columbia, and Pronghorn) arranged in a 3 × 2 × 2 factorial in a randomized complete block design experiment with four replications. Responses were considered different if p < 0.05. Grain yield of camelina was influenced by SD in Year 1 and SD × SM interaction in Year 2. In Year 1, grain yield was greater for early (921 kg/ha) compared to late SD (503 kg/ha, SE = 101). In Year 2, for early SD grain yield was not different between SM (average = 594 kg/ha), but for late, it was greater for drill (676 kg/ha) than broadcast (130 kg/ha, SE = 75). For broadcast SM, grain yield was greater for early (587 kg/ha) compared to late SD (130 kg/ha, SE = 75), but for drill SM, grain yield was not different between SD (average = 639 kg/ha). Oil concentration was affected by SD in both years, and in Year 1, for example, it was greater for early (295 g/kg) versus late SD (284 g/kg SE = 2.7). Both oil and biodiesel production followed a similar pattern to grain yield in this study. Based on the magnitude of differences observed in both years of this study, late SD and broadcast sowing are not viable options for farmers who want to venture into camelina production in Nevada.

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“…It utilizes ATP and reduces ions produced by photosynthesis. Seed filling is a sensitive stage of rapeseed, during which a change in temperature and solar radiation affects the fatty acid composition indirectly through the accumulation of photoassimilates and the modification of the source-sink ratio 47 . Ruuska et al .…”

Section: Discussionmentioning

confidence: 99%

Alteration in yield and oil quality traits of winter rapeseed by lodging at different planting density and nitrogen rates

Khan

Anwar

Kuai

et al. 2018

Sci Rep

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Lodging is a factor that negatively affects yield, seed quality, and harvest ability in winter rapeseed (Brassica napus L.). In this study, we quantified the lodging-induced yield losses, changes in fatty acid composition, and oil quality in rapeseed under different nitrogen application rates and planting densities. Field experiments were conducted in 2014–2017 for studying the effect of manually-induced lodging angles (0°, 30°, 60°, and 90°), 10, 20 and 30 d post-flowering at different densities and nitrogen application rates. The fertilization/planting density combination N270D45 produced the maximum observed yield and seed quality. Timing and angle of lodging had significant effects on yield. Lodging at 90° induced at 10 d post-flowering caused the maximum reduction in yield, biomass, and silique photosynthesis. Seed yield losses were higher at high N application rates, the maximum being at N360D45. Lodging decreased seed oil content and altered its fatty acid composition by increasing stearic and palmitic acid content, while decreasing linoleic and linolenic acid content, and deteriorating oil quality by increasing erucic acid and glucosinolate content. Therefore, lodging-induced yield loss and reduction in oil content might be reduced by selecting optimum N level and planting density.

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Fatty acids composition of oilseed rape genotypes as affected by solar radiation and temperature

Cited by 25 publications

References 37 publications

Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

Sowing date and sowing method influence on camelina cultivars grain yield, oil concentration, and biodiesel production

Alteration in yield and oil quality traits of winter rapeseed by lodging at different planting density and nitrogen rates

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