Potential impact of weedy Brassicaceae species on oil and meal quality of oilseed rape (canola) in Australia

Salisbury, P. A.; Potter, T. D.; Gurung, Allison M.; Mailer, Rodney J.; Williams, W. M.

doi:10.1111/wre.12296

Cited by 9 publications

(7 citation statements)

References 33 publications

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“…Weeds can cause several agronomic problems in oilseed rape (OSR), for example, by competition for nutrients, water, light, and space, and thus lead to a reduction in yield and seed quality [1][2][3]. Weeds can also cause harvest complications due to their moisture content, and slow the mechanical harvest process.…”

Section: Introductionmentioning

confidence: 99%

Hoeing as a Possibility for Mechanical Weed Control in Winter Oilseed Rape (Brassica napus L.)

Schwabe

Gruber

Claupein

2022

Crops

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The framework conditions for chemical weed control in oilseed rape (OSR) are becoming increasingly unfavorable in Central Europe. On the one hand, weed resistance is spreading and, on the other, there is a growing social desire to reduce or eliminate the use of chemical crop protection products. In a field experiment, hoeing, as a weed control measure performed two times per growing season (one time in autumn and one time in spring) in oilseed rape (Brassica napus; two varieties), was compared to chemical control by herbicides and a combination of hoeing and herbicide application (five treatments altogether). The chemical control by herbicides consisted of a broad-spectrum pre-emergence treatment and a post-emergence graminicide application. The trial was set up in each of three periods (years 2014/2015, 2015/2016, and 2016/2017) at the experimental station Ihinger Hof, University of Hohenheim, Stuttgart, Germany. The effect of the treatments on weed plant density, weed biomass at the time of harvesting, and on OSR grain yield was investigated. Weed plant density was measured four times per trial year, each time before and after hoeing. In 2015/2016 after spring hoeing, and in 2016/2017 at all data collection times, weed plant density was significantly higher in hoeing without herbicide application than in the other variants. No significant differences occurred at the other data collection times. The weed plant density ranged from 0.5 to 57.8 plants m−2. Regardless of the trial year, pure hoeing always resulted in a significantly higher weed biomass at the time of harvesting than the herbicide applications or the combinations. The weed biomass at the time of harvesting ranged between 0.1 and 54.7 g m−2. No significant differences in grain yield between hoeing and herbicide application occurred in all three trial years. According to the results, hoeing is a suitable extension of existing integrated weed control strategies in OSR.

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Section: Introductionmentioning

confidence: 99%

Hoeing as a Possibility for Mechanical Weed Control in Winter Oilseed Rape (Brassica napus L.)

Schwabe

Gruber

Claupein

2022

Crops

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“…Many studies have indicated that the nutrient allocation of seeds might be controlled by phylogenetic history. For example, seeds from Brassicaceae have higher oil content and those from Fabaceae have higher protein content (Salisbury et al ., 2018; Dornbos and Mullen, 1992). Thus, the variation in nutrient allocation of seeds collected from an alpine meadow was predicted to be controlled by the phylogenetic groups.…”

Section: Introductionmentioning

confidence: 99%

The evolutionary correlation associated with seed mass and altitude on nutrient allocation of seeds

Zhang

Zhao

et al. 2019

Seed Sci. Res.

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Seed reserves play vital roles in seed germination and seedling growth and their variation may be related to various environment factors, plant traits and phylogenetic history. Here, the evolutionary correlation associated with seed mass and altitude and carbon (C), nitrogen (N) and phosphorus (P) allocation of seeds among 253 alpine herbaceous plants was tested. In this study, phylogeny had strong limitations on nutrient allocation of seeds across species, and species from younger phylogenetic groups tended to have higher N and P contents, which might be considered as the evolutionary selection of seed plants. Higher seed N and P content would help seedlings to gain more survival chance and stronger competitive capacity, and their progeny would be more likely to be preserved. When phylogeny was considered, altitude only had a significant positive effect on P content, but the negative effects on seed mass were all expressed. The independent effects of altitude and seed mass suggest that the nutrient allocation of seeds might be affected by both environment and plant traits. In addition, altitude and seed mass displayed partial overlapping effects on nutrient allocation of seeds. The negative effects of seed mass were affected slightly by altitude, whereas altitude only had a significant positive effect on P content when seed mass was controlled. Above all, seed P content showed obvious and general correlations with seed mass, altitude and age of clade, which indicated that higher seed P content might be an adaptive selection of species associated with growth and survival of progeny.

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“…Sahara mustard (Brassica tournefortii; Family: Brassicaceae) is a facultative autogamous (i.e., primarily self-fertilizes but outcrossing is possible) diploid annual that is native to the Mediterranean basin and much of the Middle East into western India (Aldhebiani & Howladar, 2013;Prain, 1898;Thanos, Georghiou, Douma, & Marangaki, 1991). It is a pest species in agriculture fields in parts of its native range and Australia (Ahmed, Fawzy, Saeed, & Awad, 2015;El-Saied, El-Ghamry, Khafagi, Powell, & Bedair, 2015;Salisbury, Potter, Gurung, Mailer, & Williams, 2018), but it also has traditional dietary uses and economic value in regions where it is cultivated (Guarrera & Savo, 2016;Singh, Semwal, & Bhatt, 2015). Sahara mustard is an invasive throughout much of Australia (Chauhan, Gill, & Preston, 2006), South Africa (McGeoch, Kalwij, & Rhodes, 2009), Chile (Teillier, Prina, & Lund, 2014), and more recently, western North America (Li, Dlugosch, & Enquist, 2015).…”

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confidence: 99%

Multiple introductions and population structure during the rapid expansion of the invasive Sahara mustard (Brassica tournefortii)

Winkler

Chapin

Ochsenbein

et al. 2019

Ecology and Evolution

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The specific mechanisms that result in the success of any species invasion case are difficult to document. Reproductive strategies are often cited as a primary driver of invasive success, with human activities further facilitating invasions by, for example, acting as seed vectors for dispersal via road, train, air, and marine traffic, and by producing efficient corridors for movement including canals, drainages, and roadways. Sahara mustard ( Brassica tournefortii ) is a facultative autogamous annual native to Eurasia that has rapidly invaded the southwestern United States within the past century, displacing natives, and altering water‐limited landscapes in the southwest. We used a genotyping‐by‐sequencing approach to study the population structure and spatial geography of Sahara mustard from 744 individuals from 52 sites across the range of the species’ invasion. We also used herbaria records to model range expansion since its initial introduction in the 1920s. We found that Sahara mustard occurs as three populations in the United States unstructured by geography, identified three introduction sites, and combined herbaria records with genomic analyses to map the spread of the species. Low genetic diversity and linkage disequilibrium are consistent with self‐fertilization, which likely promoted rapid invasive spread. Overall, we found that Sahara mustard experienced atypical expansion patterns, with a relatively constant rate of expansion and without the lag phase that is typical of many invasive species.

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Potential impact of weedy Brassicaceae species on oil and meal quality of oilseed rape (canola) in Australia

Cited by 9 publications

References 33 publications

Hoeing as a Possibility for Mechanical Weed Control in Winter Oilseed Rape (Brassica napus L.)

Hoeing as a Possibility for Mechanical Weed Control in Winter Oilseed Rape (Brassica napus L.)

The evolutionary correlation associated with seed mass and altitude on nutrient allocation of seeds

Multiple introductions and population structure during the rapid expansion of the invasive Sahara mustard (Brassica tournefortii)

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