Automated Rainout Shelter's Design for Well‐Defined Water Stress Field Phenotyping of Crop Plants

Kant, Surya; Thoday-Kennedy, Emily; Joshi, Sameer; Vakani, Jignesh; Hughes, J. T.; Maphosa, Lancelot; Sadler, A. J.; Menidis, Meri; Slater, Anthony T.; Spangenberg, Germán

doi:10.2135/cropsci2016.08.0677

Cited by 15 publications

(12 citation statements)

References 32 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the greatest challenges in breeding crops for drought tolerance is the simulation of drought at a larger scale. Conducting drought experiments in open field conditions requires a long-term data set as there is a large variation in precipitation and soil moisture conditions (Kant et al, 2017). Additional environmental factors like light intensity, temperature, and canopy cover are also critical in open field experiments, but these factors are highly variable temporally and spatially.…”

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

“…Rainwater shelters can be mobile (Wimmerová et al, 2018) or geographically fixed (Kundel et al, 2018) and either manual, semi-automated or fully automated (Ries and Zachmeier, 1985). Custom-designed, automated and portable shelters are very efficient for stress tolerance phenotyping (Kant et al, 2017). For improving the precision of these shelters, it is important that they are equipped with standard soil moisture sensors, motion cameras, and other tools which essentially add value to precise data recording (Mwadzingeni et al, 2016;Kant et al, 2017).…”

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

“…Custom-designed, automated and portable shelters are very efficient for stress tolerance phenotyping (Kant et al, 2017). For improving the precision of these shelters, it is important that they are equipped with standard soil moisture sensors, motion cameras, and other tools which essentially add value to precise data recording (Mwadzingeni et al, 2016;Kant et al, 2017). One technical issue is that rainwater shelters exclude solar radiation (Wimmerová et al, 2018).…”

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

See 2 more Smart Citations

A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat

et al. 2020

View full text Add to dashboard Cite

In the past, there have been drought events in different parts of the world, which have negatively influenced the productivity and production of various crops including wheat (Triticum aestivum L.), one of the world's three important cereal crops. Breeding new high yielding drought-tolerant wheat varieties is a research priority specifically in regions where climate change is predicted to result in more drought conditions. Commonly in breeding for drought tolerance, grain yield is the basis for selection, but it is a complex, late-stage trait, affected by many factors aside from drought. A strategy that evaluates genotypes for physiological responses to drought at earlier growth stages may be more targeted to drought and time efficient. Such an approach may be enabled by recent advances in high-throughput phenotyping platforms (HTPPs). In addition, the success of new genomic and molecular approaches rely on the quality of phenotypic data which is utilized to dissect the genetics of complex traits such as drought tolerance. Therefore, the first objective of this review is to describe the growth-stage based physio-morphological traits that could be targeted by breeders to develop droughttolerant wheat genotypes. The second objective is to describe recent advances in high throughput phenotyping of drought tolerance related physio-morphological traits primarily under field conditions. We discuss how these strategies can be integrated into a comprehensive breeding program to mitigate the impacts of climate change. The review concludes that there is a need for comprehensive high throughput phenotyping of physio-morphological traits that is growth stage-based to improve the efficiency of breeding drought-tolerant wheat.

show abstract

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

Section: Application Of Controlled Physical Structuresmentioning

confidence: 99%

See 1 more Smart Citation

A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Because of this, results are often not transferable to field conditions (Araus & Cairns, 2014). Rainout shelters exclude untimely rain events from undisturbed field plots (Kant et al, 2017) and are thus a compromise between controlled laboratory and greenhouse conditions and a completely uncontrolled field environment.…”

Section: Introductionmentioning

confidence: 99%

Drought tolerance in perennial ryegrass (Lolium perenne L.) as assessed by two contrasting phenotyping systems

Bothe

Westermeier

Wosnitza

et al. 2018

J Agronomy Crop Science

View full text Add to dashboard Cite

The objectives of this research were to establish a practicable phenotyping platform for assessing the drought stress response of perennial ryegrass (Lolium perenne L.; Lp), and to use this platform for evaluating the variation for drought tolerance among a panel of 39 diverse Lp populations. A moderate‐to‐strong correlation was assessed between the performance of plants grown in a hydroponics system, where the stress was generated by the addition of polyethylene glycol (PEG), and those grown in the field in a rainout shelter. Following the application of drought stress, tetraploid Lp populations, along with a small number of reference Festulolium and Festuca sp. accessions, were able to develop more shoot and root dry matter than diploid Lp populations. The onset of drought symptoms was also delayed within these accessions and the plants recovered better once drought had been relieved. Although most of the diploid Lp populations were drought susceptible, there was a considerable accession‐to‐accession variation for performance under drought stress conditions. Measuring biomass production and post‐drought recovery in rainout shelter experiments in combination with the assessment of root biomass accumulation in PEG‐supplemented hydroponics represented a viable means of screening Lp germplasm for drought tolerance.

show abstract

“…Large phenotyping platforms such as that currently adopted are becoming an important tool for drought tolerance assessment, enabling testing of large genetic pools under conditions that are more reproducible and far less subjected to year‐to‐year climatic variation than field‐based experiments, while resembling more closely actual agricultural conditions than any greenhouse environment (Kant et al., ). The presence of a favourable growing condition beside a stressed one allowed for a reliable assessment of white lupin variation for drought tolerance in terms of genotype × condition interaction and extent of genetic correlation for genotype yield responses across conditions.…”

Section: Discussionmentioning

confidence: 99%

White lupin (Lupinus albus) variation for adaptation to severe drought stress

Annicchiarico¹,

Romani²,

Pecetti³

2018

Plant Breeding

View full text Add to dashboard Cite

This study aimed to reduce the gap of knowledge on white lupin drought tolerance variation, by assessing the grain yield of 21 landraces from major historical cropping regions, one variety and two breeding lines in a large phenotyping platform that imposed controlled severely stressed or moisture‐favourable conditions after an initial stage of favourable growth. Drought stress reduced grain yield by 79%. Genetic correlation coefficients indicated moderate consistency of genotype responses across conditions for grain yield (rg = 0.76), fairly high consistency for straw yield (rg = 0.85) and harvest index (rg = 0.91), and high consistency for flowering time (rg = 0.99). However, low genetic correlation for yield (rg = 0.31) occurred among a subset of genotypes with early phenology. Specific adaptation to either condition implied significant (p = 0.05) genotype × condition interaction of crossover type between well‐performing genotypes. Early flowering was an important stress escape mechanism, but intrinsic drought tolerance could be inferred from responses of a few genotypes. Various landraces out‐yielded the improved germplasm under stressed or favourable conditions.

show abstract

Automated Rainout Shelter's Design for Well‐Defined Water Stress Field Phenotyping of Crop Plants

Cited by 15 publications

References 32 publications

A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat

A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat

Drought tolerance in perennial ryegrass (Lolium perenne L.) as assessed by two contrasting phenotyping systems

White lupin (Lupinus albus) variation for adaptation to severe drought stress

Contact Info

Product

Resources

About