Sowing date influence on winter oilseed rape overwintering in Estonia

Lääniste, P.; Jõudu, J.; Eremeev, Viacheslav; Mäeorg, Erkki

doi:10.1080/09064710601029554

Cited by 11 publications

(8 citation statements)

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“…Finch-Savage et al [ 55 ] suggested that vigorous early root growth is essential for small seeded crops such as Brassica to acquire resources before desiccation occurs. A fast-growing, thick root collar contains large amounts of soluble carbohydrates which will enable the plant to withstand frost and afford a rapid re-growth in spring [ 58 ]. Thus, sufficient early root growth is necessary for winter crop survival and may have been selected for based on yield in previous breeding programs, whereas spring sown crops have less need for a rapid development to ensure hardiness.…”

Section: Resultsmentioning

confidence: 99%

Root morphology and seed and leaf ionomic traits in a Brassica napus L. diversity panel show wide phenotypic variation and are characteristic of crop habit

et al. 2016

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BackgroundMineral nutrient uptake and utilisation by plants are controlled by many traits relating to root morphology, ion transport, sequestration and translocation. The aims of this study were to determine the phenotypic diversity in root morphology and leaf and seed mineral composition of a polyploid crop species, Brassica napus L., and how these traits relate to crop habit. Traits were quantified in a diversity panel of up to 387 genotypes: 163 winter, 127 spring, and seven semiwinter oilseed rape (OSR) habits, 35 swede, 15 winter fodder, and 40 exotic/unspecified habits. Root traits of 14 d old seedlings were measured in a ‘pouch and wick’ system (n = ~24 replicates per genotype). The mineral composition of 3–6 rosette-stage leaves, and mature seeds, was determined on compost-grown plants from a designed experiment (n = 5) by inductively coupled plasma-mass spectrometry (ICP-MS).ResultsSeed size explained a large proportion of the variation in root length. Winter OSR and fodder habits had longer primary and lateral roots than spring OSR habits, with generally lower mineral concentrations. A comparison of the ratios of elements in leaf and seed parts revealed differences in translocation processes between crop habits, including those likely to be associated with crop-selection for OSR seeds with lower sulphur-containing glucosinolates. Combining root, leaf and seed traits in a discriminant analysis provided the most accurate characterisation of crop habit, illustrating the interdependence of plant tissues.ConclusionsHigh-throughput morphological and composition phenotyping reveals complex interrelationships between mineral acquisition and accumulation linked to genetic control within and between crop types (habits) in B. napus. Despite its recent genetic ancestry (<10 ky), root morphology, and leaf and seed composition traits could potentially be used in crop improvement, if suitable markers can be identified and if these correspond with suitable agronomy and quality traits.Electronic supplementary materialThe online version of this article (doi:10.1186/s12870-016-0902-5) contains supplementary material, which is available to authorized users.

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Section: Resultsmentioning

confidence: 99%

Root morphology and seed and leaf ionomic traits in a Brassica napus L. diversity panel show wide phenotypic variation and are characteristic of crop habit

et al. 2016

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“…Luteman and Dixon [1] and Sieling et al [2] observed a reduced autumn and winter growth by delayed plant establishment, especially if it was later than 10 September, increasing the risk of winter kill [3][4][5]. While Luteman and Dixon [1] found only small yield penalties, Uzan et al [6] reported a decline in seed yield of canola cultivars with a delay in sowing date under Mediterranean environment conditions due to shortening the length of the reproductive period and consequently the potential grain-filling period.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sowing Method and N Application on Seed Yield and N Use Efficiency of Winter Oilseed Rape

2017

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Abstract:In northern Europe, replacing winter barley with winter wheat as the preceding crop for winter oilseed rape (Brassica napus L.; WOSR) often results in a delayed WOSR sowing and poor autumn growth. Based on data from a field experiment running in 2009/2010, 2010/2011, and 2012/2013, this study aims (i) to investigate how a delayed sowing method affects seed yield, N offtake with the seeds, and apparent N use efficiency (NUE) of WOSR; (ii) to test the ability of autumn and spring N fertilization to compensate for the negative effects of a delayed sowing method; and (iii) to estimate the minimum autumnal growth for optimal seed yield. In order to create sufficiently differentiated canopies, a combination of four sowing methods (first week of August until the third week of September) and four autumn N treatments (0, 30, 60, and 90 kg·N·ha −1 ) was established. Each of these 16 different canopies was fertilized with 5 N amounts (0/0, 40/40, 80/80, 120/120, 140/140 kg·N·ha −1 ) in spring in order to estimate separate N response curves. Above-ground N accumulation in autumn and seed yield and N offtake by the seeds were determined. Plant establishment after mid-September significantly decreased seed yield. Autumn N fertilization of at least 30 kg·N·ha −1 increased seed yield and N offtake by the seeds without any significant interaction with sowing method and spring N supply. However, the pathway(s) remain(s) unclear. Spring N fertilization up to 130 kg·N·ha −1 (estimated by a Linear-Plateau N response curve) increased seed yield. NUE decreased with increasing N supply, where WOSR used autumn N to a lesser extent than spring N. An above-ground N uptake of at least 10-15 kg·N·ha −1 at the end of autumn growth was required to achieve high seed yields. From an environmental point of view, optimal autumn growth should be attained by choosing an adequate sowing method, not by applying additional N in autumn.

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“…The quantity and quality of oilseed rape seed yield is affected by the cultivar (Yousaf et al, 2002;Novickiene et al, 2010;Sattar et al, 2013), environmental conditions and cultivation technology (Montvilas and Mittas, 2000;Pritchard et al, 2000;Balodis and Gaile, 2016). The sowing date of winter oilseed rape is one of the most important elements of cultivation technology (Lääniste et al, 2007;Lääniste et al, 2008;Turhan et al, 2011;Balalić et al, 2017;Ratajczak et al, 2017). Velička et al (2011) reported that the time when winter oilseed rape should be sown depends primarily on the climatic conditions prevailing in the area.…”

Section: Introductionmentioning

confidence: 99%

The influence of delayed sowing of winter rape on the quantity and quality of seed yield

Jarecki¹,

Jamro²

2019

JCEA

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The sowing date of winter oilseed rape affect plant development and yield to a large extent, but yield components have not been well documented yet in the conditions of Poland. Therefore, research was undertaken to determine the impact of the delayed date of winter oilseed rape on the development of plants and the quantity and quality of the seed yield. A field study was conducted in the seasons 2013/2014 -2015/2016 at the Experimental Institute of Cultivar Assessment in Skołoszów, Poland. Experimental factors were: the seed sowing date (optimal, delayed) and winter oilseed rape cultivars (Monolit, Arsenal F 1 ). This study has indicated that sowing the seeds in a delayed time affected shortening of the plant growing period, but it did not differentiate the seed yield. It has been found that the optimal sowing date increased the plant density prior to harvest, whereas a delayed sowing date resulted in an increase in the number of seeds per silique. The cultivar Arsenal F 1 increased seed yield by 0.87 t/ha as compared with the cultivar Monolit.Delayed sowing date increased the content of fibre and zinc in seeds, and decreased the content of protein, phosphorus and potassium as compared with the optimal time.

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Sowing date influence on winter oilseed rape overwintering in Estonia

Cited by 11 publications

References 5 publications

Root morphology and seed and leaf ionomic traits in a Brassica napus L. diversity panel show wide phenotypic variation and are characteristic of crop habit

Root morphology and seed and leaf ionomic traits in a Brassica napus L. diversity panel show wide phenotypic variation and are characteristic of crop habit

Effect of Sowing Method and N Application on Seed Yield and N Use Efficiency of Winter Oilseed Rape

The influence of delayed sowing of winter rape on the quantity and quality of seed yield

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