Effects of weather conditions during different growth phases on yield formation of winter oilseed rape

Weymann, Wiebke; Böttcher, Ulf; Sieling, Klaus; Kage, Henning

doi:10.1016/j.fcr.2015.01.002

Cited by 78 publications

(71 citation statements)

References 38 publications

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“…In accordance with our analysis, Weymann et al [55] showed that at the beginning of the pod and seed formation process, temperature and water-stress negatively influenced oilseed rape yield, whereas during the last phase of crop cycle, seed yield and oil content were only temperature-dependent. In 2008, rainfall absence during the period flowering-seed filling resulted in low water soil availability for crops.…”

Section: Methodssupporting

confidence: 67%

“…In 2008, rainfall absence during the period flowering-seed filling resulted in low water soil availability for crops. This environmental condition determined a reduction in production levels [55]. Indeed, at the seed-filling stage in 2010, no water-stress condition occurred because of the wetter spring season.…”

Section: Methodsmentioning

confidence: 99%

“…The oilseed rape yield is significantly influenced by the rainfall amount during the period between flowering and maturing [54,55], since there is a close and positive relation between the length of reproductive stages (flowering and maturing) and seed production. However, in typically Mediterranean climate, seasons may be either mild and wet or extremely dry.…”

Section: Methodsmentioning

confidence: 99%

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Low-Input Herbicide Management: Effects on Rapeseed Production and Profitability

et al. 2018

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Abstract:The oilseed rape conventional system can be moved to a more sustainable one by reducing herbicide application whilst ensuring at the same time effective weed control, maintaining oilseed rape yield, and quality and increasing profitability. Over three growing season periods, two field experiments at two different Southern Italy locations were carried out. In both sites, a conventional weed-control management system (recommended label dose), four alternative low-herbicide treatments, and an untreated control were compared. We monitored weeds and crop response to herbicide treatments, and calculated the net economic return, within site and year, for each treatment. In experiment 1, a half dose of herbicide did not show any significant difference in seed yield with respect to conventional treatment in two of three growing seasons. In experiment 2, compared with the conventional system, weedy control and the lowest applied herbicide dose treatment (25% of the recommended label dose) did not underline significant differences with regard to yield level. Net returns from the half dose of metazachlor herbicide were not significantly lower than net returns from conventional treatment in experiment 1 (on a three-year average 748 vs. 812 € ha −1 , respectively). Our findings suggest that the herbicide dose might be cut by at least 50% in order not to jeopardize negative effects on production and economic performances.

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Section: Methodssupporting

confidence: 67%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Low-Input Herbicide Management: Effects on Rapeseed Production and Profitability

et al. 2018

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“…Its shortage at the onset of flowering resulted in yield decrease. As reported by Weymann et al (2015) the period of oilseed rape, extending from 50-65 BBCH, is crucial for the onset of pods and seeds. Based on the own study, it can be concluded that the degree in Mg concentration change (ΔMg c ) during the stem extension (YFP) is a very important characteristic of oilseed rape nutritional status.…”

Section: Resultsmentioning

confidence: 75%

Nutritional status of winter oilseed rape in cardinal stages of growth as the yield indicator

Szczepaniak¹,

Grzebisz²,

Potarzycki³

et al. 2015

Plant Soil Environ.

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Nutritional status of the seed crop during its vegetative growth is a tool for a reliable yield prognosis. This approach has been validated for oilseed rape in three 2007/2008, 2008/2009, and 2009/2010 seasons. The field experimental design was: untreated control, NP, NPK, NPKMgS1 (1/3 total MgS rate, spring applied), NPKMgS2 (total rate, autumn), NPKMgS3 (2/3 -autumn, 1/3 -spring). The concentrations of N, P, K, Ca, Mg, Mn, Zn, and Cu were measured in two stages: rosette (whole plant) and flowering (leaves). The yield prognosis was based on path analysis and stepwise regression. The elevated concentration of P, Ca, and Zn in plants at the rosette stage was the early symptom of nutrient imbalance. The Mg concentration in plant leaves at flowering was revealed as the decisive yield predictor. The manner of its management in plant canopy during the yield forming period (YFP) was crucial for the harvested yield. It was documented that each factor leading to increase in Ca but decrease in Mg concentration resulted in yield decrease. The key reason of Mg shortage was its low uptake during the YFP and simultaneous increase in Mn concentration.

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“…In general, increased nitrogen fertilization has been linked with a decrease in the proportion of oleic acid, but an increase in linoleic, linolenic and erucic acid content . Here, the 20.8% lower precipitation during important plant development stages in 2011/2012 may have affected seed quality because nitrogen use efficiency may be hindered by water availability, resulting in a reduced ability of plants to benefit from chemical sources of nitrogen in the INT production . Therefore, the expected statistically significant results of the individual quality components of the rapeseed samples were not observed during the 2011/2012 production year, and the mineral nitrogen fertilization in the INT production system did not affect the fatty acid composition of rapeseed as expected.…”

Section: Resultsmentioning

confidence: 67%

Effects of intensive and alternative production systems on the technological and quality parameters of rapeseed seed (Brassica napus L. ‘Siska’)

Turinek

Bavec

Repič³

et al. 2016

J Sci Food Agric

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Effects of weather conditions during different growth phases on yield formation of winter oilseed rape

Cited by 78 publications

References 38 publications

Low-Input Herbicide Management: Effects on Rapeseed Production and Profitability

Low-Input Herbicide Management: Effects on Rapeseed Production and Profitability

Nutritional status of winter oilseed rape in cardinal stages of growth as the yield indicator

Effects of intensive and alternative production systems on the technological and quality parameters of rapeseed seed (Brassica napus L. ‘Siska’)

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