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Rapeseed

About: Rapeseed is a research topic. Over the lifetime, 2945 publications have been published within this topic receiving 51790 citations. The topic is also known as: Brassica napus & rape.


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Journal ArticleDOI
TL;DR: Leaf proline accumulation, leaf chlorophyll stability, and germination at low osmotic potentials have previously been suggested as possible selection criteria for drought resistance in turnip rape and rapeseed and were under significant genetic control and responsive to selection.
Abstract: Leaf proline accumulation, leaf chlorophyll stability, and germination at low osmotic potentials have previously been suggested as possible selection criteria for drought resistance in turnip rape (Brassica campestris) and rapeseed (B. napus) (Richards, 1978a). The feasibility of using these characters in a breeding program is reported. These characters were under significant genetic control and were responsive to selection. Broad sense heritabilities ranged from 40% for proline accumulation in both species to 55% for germination rate in B. campestris and 64% for chlorophyll stability in B. napus, however, narrow sense heritabilities for proline and germination were substantially lower. Their use as selection criteria for yield in a Mediteranean drought would be restricted since in B. campestris these characters were not related to yield while in B. napus only a weak association was observed between yield under drought and proline accumulation.

19 citations

Journal ArticleDOI
TL;DR: In this paper, the authors compared linseed, rapeseed, sunflower and protein crops of faba bean and white lupin for grain production, residual plant dry matter and nitrogen.

19 citations

Journal ArticleDOI
TL;DR: The results showed that T1 transgenic plants had lower malondialdehyde content, higher super oxide dismutase (SOD), and peroxidase (POD) activities than non-transformants, whereas disease resistance was related to low MDA content and high SOD and POD activities.
Abstract: Rapeseed (Brassica napus L.) is one of the most important economic crops worldwide, and Sclerotinia sclerotiorum is the most dangerous disease that affects its yield greatly. Lipid transfer protein (LTP) has broad-spectrum anti-bacterial and fungal activities. In this study, B. napus was transformed using Agrobacterium tumefaciens harboring the plasmid-containing LTP gene to study its possible capability of increasing plant’s resistance. First, we optimized the petiole genetic transformation system by adjusting the days of explants, bacterial concentrations, ratio of hormones, and cultivating condition. Second, we obtained 8 positive plants by PGR analysis of T0 generation. The PGR results of T1 generation were positive, indicating that the LTP gene had been integrated into B. napus. Third, T1 transgenic plants inoculated by detached leaves with mycelia of S. sclerotiorum showed better disease resistance than non-transformants. Oxalic acid belongs to secondary metabolites of S. sclerotiorum, and several studies have demonstrated that the resistance of rapeseed to oxalic acid is significantly consistent with its resistance to S. sclerotiorum. The result from the seed germination assay showed that when T1 seeds were exposed to oxalic acid stress, their germination rate was evidently higher than that of non-transformant seeds. In addition, we measured some physiological changes in T1 plants and control plants under oxalic acid stress. The results showed that T1 transgenic plants had lower malondialdehyde (MDA) content, higher super oxide dismutase (SOD), and peroxidase (POD) activities than non-transformants, whereas disease resistance was related to low MDA content and high SOD and POD activities.

19 citations

Journal ArticleDOI
TL;DR: In this paper, genetically developed low-erucic varieties of Brassica campestris and Brassica napus are expected to become a major part of the Canadian and European rapeseed crops within the next few years.
Abstract: Because of evidence that erucic acid may be undesirable in edible products, genetically developed low-erucic varieties ofBrassica campestris andBrassica napus are expected to become a major part of the Canadian and European rapeseed crops within the next few years. In contrast the objective of work on crambe and related oilseeds in the U.S. is a reliable domestic source of oil high in erucic acid for industrial purposes. Whether the oil is produced for edible or nonfood uses, however, the glucosinolates that are characteristically present in oilseeds of the mustard family unfavorably influence the use of the byproduct meals as feed. These glucosinolates are the subject of current intensive research, both chemical and genetic. Development of convenient, accurate and sensitive analytical methods has markedly facilitated this research. To achieve optimum meal quality, procedures involving aqueous extraction of unreacted glucosinolates are under study. Genetically, a Polish variety ofB. napus called Bronowski has been found to produce seed having very low glucosinolate content, and individual low-glucosinolate plants ofB. campestris have been discovered. Crambe exhibits significantly less observable variability than rapeseed. Consequently the approaches based on chemical research seem more promising, but the possibility of developing a low-glucosinolate, high-erucicBrassica adapted to agricultural production in the U.S. to complement or even compete with crambe is not being overlooked.

19 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023384
2022870
2021101
2020140
2019123