Analysis of <i>Brassica oleracea</i> early stage abiotic stress responses reveals tolerance in multiple crop types and for multiple sources of stress

Beacham, Andrew M; Hand, Paul; Pink, David; Monaghan, James

doi:10.1002/jsfa.8411

Cited by 23 publications

(17 citation statements)

References 16 publications

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“…For all the other cultivars and seasons, the weight was around 400 to 450 g per inflorescence, with no significant differences. It has been reported that when multiple abiotic stresses were applied to different Brassica oleracea L. crop types, no relevant differences were found among them, which is promising for the development of more environmentally robust lines (Beacham et al, 2017). Therefore, if we consider the different temperatures and day lengths of the seasons as additional stresses to salinity, this can explain the differing responses of the cultivars studied.…”

Section: Discussionmentioning

confidence: 99%

Growing broccoli under salinity: the influence of cultivar and season on glucosinolates content

Ríos

Agudelo²,

Moreno

et al. 2020

Sci. agric. (Piracicaba, Braz.)

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Section: Discussionmentioning

confidence: 99%

Growing broccoli under salinity: the influence of cultivar and season on glucosinolates content

Ríos

Agudelo²,

Moreno

et al. 2020

Sci. agric. (Piracicaba, Braz.)

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“…The increased popularity of broccoli is largely due to its many desirable nutrients, antioxidants, and other bioactive compounds [ 2 , 4 ]. Broccoli is considered a cool season crop and, like many crops, is vulnerable to several abiotic stresses that might limit productivity [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Ascorbic Acid Preconditioning Effect on Broccoli Seedling Growth and Photosynthesis under Drought Stress

MacDonald

Kannan

Jayaseelan

2022

Plants

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Drought is an abiotic stress that decreases crop photosynthesis, growth, and yield. Ascorbic acid has been used as a seed preconditioning agent to help mitigate drought in some species, but not yet in broccoli (Brassica oleracea var. italica). The objective was to investigate the effect of ascorbic acid on growth, photosynthesis, and related parameters in watered and drought-stressed broccoli seedlings. A 2 × 4 factorial experiment was designed where stress (watered or drought) was the first factor and ascorbic acid preconditioning (untreated, 0 ppm, 1 ppm, or 10 ppm) was the second factor. Positioning within the greenhouse was included as a blocking factor and the experiment was replicated three times. All seedlings were watered for 8 weeks and then half had water withheld for 7 days to impose drought while the other half continued to be watered. Ascorbic acid preconditioning increased shoot dry mass, root dry mass, water use efficiency, and photosynthesis in all seedlings while also increasing chlorophyll, relative water content, and leaf area in droughted seedlings. Ascorbic acid preconditioning also decreased membrane injury in droughted seedlings to the point that membrane injury was not significantly different than the watered control. There was strong evidence to support ascorbic acid as a successful seed preconditioning agent in watered and droughted broccoli.

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“…A series of short-term abiotic stress assays have recently been developed to screen B. oleracea lines for resilience to drought, waterlogging, high salinity, heat and freezing stress ( Figure 1 and Beacham et al, 2017). This study used assay systems that aimed to provide a close approximation of transplant stress while allowing sufficient throughput for effective population screening.…”

Section: Studies In Leafy Vegetable Cropsmentioning

confidence: 99%

“…An example assay system for the investigation of short-term stress resilience in Brassica oleracea (Beacham et al, 2017). Brassica oleracea seedlings are grown in module trays to the 3–4 true leaf stage before the imposition of short-term (<1 week) stress treatments.…”

Section: Improving Crop Stress Resiliencementioning

confidence: 99%

Addressing the threat of climate change to agriculture requires improving crop resilience to short-term abiotic stress

et al. 2018

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Climate change represents a serious threat to global agriculture, necessitating the development of more environmentally resilient crops to safeguard the future of food production. The effects of climate change are appearing to include a higher frequency of extreme weather events and increased day-to-day weather variability. As such, crops which are able to cope with short-term environmental stress, in addition to those that are tolerant to longer term stress conditions are required . It is becoming apparent that the hitherto relatively little studied process of post-stress plant recovery could be key to optimizing growth and production under fluctuating conditions with intermittent transient stress events. Developing more durable crops requires the provision of genetic resources to identify useful traits through the development of screening protocols. Such traits can then become the objective of crop breeding programmes. In this study, we discuss these issues and outline example research in leafy vegetables that is investigating resilience to short-term abiotic stress.

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Analysis of Brassica oleracea early stage abiotic stress responses reveals tolerance in multiple crop types and for multiple sources of stress

Cited by 23 publications

References 16 publications

Growing broccoli under salinity: the influence of cultivar and season on glucosinolates content

Growing broccoli under salinity: the influence of cultivar and season on glucosinolates content

Ascorbic Acid Preconditioning Effect on Broccoli Seedling Growth and Photosynthesis under Drought Stress

Addressing the threat of climate change to agriculture requires improving crop resilience to short-term abiotic stress

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