Early Changes in Carbon Uptake and Partitioning Moderates Belowground Carbon Storage in a Perennial Grain DOI
Stella Woeltjen, Jacob M. Jungers, Anna M. Cates

и другие.

Опубликована: Янв. 1, 2023

There is increasing interest in perennial crops to build soil carbon (C) agricultural production systems, but the mechanisms underlying C accrual croplands remain unclear. Research that directly tracks intra-annual fluxes through crop-microbial-soil pools necessary evaluate capacity of over intra-decadal time periods. We conducted a 13C isotope-tracer study compare within-season uptake and partitioning patterns between 1-year-old (IWG-1) 2-year-old (IWG-2) novel grain crop, intermediate wheatgrass (IWG; Thinopyrum intermedium (Host) Barkworth Dewey). compared these an annual spring wheat (Triticum aestivum L.). Crop shoots, roots, soil, respired-C were sampled ten times 90-day chase period. also measured incorporation recently assimilated into microbial biomass (13C PLFA) functional groups first 7 days post-label application. IWG incorporated little new pools, with only average 12% 8% total IWG-1 IWG-2, almost 25% soil. Compared other cropping higher proportion was retained roots (14%) arbuscular mycorrhizal fungi, suggesting invests developing root-mycorrhizal networks during its year. By second year, very allocated belowground, 50% aboveground tissues remainder respired as CO2. expect changes are associated shift from acquisitive conservative growth strategy occurs years, which may substantially limit potential for rapid systems.

Язык: Английский

Adapting crops for climate change: regaining lost abiotic stress tolerance in crops DOI Creative Commons
Michael Palmgren,

Sergey Shabala

Frontiers in Science, Год журнала: 2024, Номер 2

Опубликована: Дек. 5, 2024

It is often stated that agricultural outputs need to increase substantially meet the demands for more food posed by a growing population. However, when accounting climate change, we argue current projected increases are unrealistic and realistic goal would be maintain yields per area of production. This will require breeding crops with increased tolerance abiotic stresses such as drought, salinity, waterlogging, high temperatures. can accomplished in one two ways: introducing stress genes into present high-yielding or increasing already tolerant orphan and/or wild plants. We first strategy easing restrictions on use gene editing technologies making substantial improvements cell-based phenotyping identify available pool crop its relatives. The success second depend number domestication selected order obtain comparable present-day cultivars. still too early conclude which strategies, rewilding (bringing lost from ancestors back domesticated crops) de novo (domesticating resilient plants underutilized directly), most effective future sustainable agriculture. given importance issue, some rapid action needs taken.

Язык: Английский

Процитировано

9
Early changes in carbon uptake and partitioning moderate belowground carbon storage in a perennial grain DOI Creative Commons
Stella Woeltjen, Jacob M. Jungers, Anna M. Cates

и другие.

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 370, С. 109033 - 109033

Опубликована: Май 3, 2024

There is increasing interest in perennial crops to build soil carbon (C), but the mechanisms underlying C accrual croplands remain unclear, especially over time first years of crop growth. To address this gap, research needed that directly tracks intra-annual fluxes through crop-microbial-soil pools, evaluating capacity intra-decadal periods. We conducted a 13C isotope-tracer study compare within-season uptake and partitioning patterns between 1-year-old (IWG-1) 2-year-old (IWG-2) stands novel grain crop, intermediate wheatgrass (IWG; Thinopyrum intermedium (Host) Barkworth Dewey). compared these common annual spring wheat (Triticum aestivum L.). Crop shoots, roots, soil, respired-C were sampled ten times 90-day chase period. also measured incorporation recently assimilated into microbial biomass (13C PLFA) functional groups 7 days post-label application. Overall, IWG-1 almost 1670 mg m−2 during period, nearly twice IWG-2 or wheat, neither IWG system retained significant amounts new soil. Rather, higher proportion was root tissues (14%) arbuscular mycorrhizal fungi when other cropping systems, while 50% total aboveground tissues. expect shift from retention belowground root-mycorrhizal networks associated with an acquisitive conservative growth strategy occurs second production years. The observed potential change limited allocation as aged, adding valuable context our understanding why establishment seldom leads gains several following establishment.

Язык: Английский

Процитировано

5
Perenniality: From model plants to applications in agriculture DOI Creative Commons
Bo Zhao, Jiawei Wang

Molecular Plant, Год журнала: 2023, Номер 17(1), С. 141 - 157

Опубликована: Дек. 19, 2023

To compensate for their sessile nature, plants have evolved sophisticated mechanisms enabling them to adapt ever-changing environments. One such prominent feature is the evolution of diverse life history strategies, particularly that annuals reproduce once followed by seasonal death, while perennials live longer cycling growth seasonally. This intrinsic phenology primarily genetic and can be altered environmental factors. Although evolutionary transitions between annual perennial strategies are common, account most species in nature because they survive well under year-round stresses. proportion, however, reversed agriculture. Hence, crops promise likewise protect enhance resilience agricultural ecosystems response climate change. Despite significant endeavors been made generate crops, progress slow barriers studying perennials, many developed await further improvement. Recent findings model illustrated simply rewiring existing networks lead lifestyle variation. implies engineering plant strategy achieved manipulating only a few key genes. In this review, we summarize our current understanding basis perenniality discuss major questions challenges remain addressed.

Язык: Английский

Процитировано

9
Origin of current intermediate wheatgrass germplasm being developed for Kernza grain production DOI Creative Commons
Jared Crain, Peggy Wagoner, Steve Larson

и другие.

Genetic Resources and Crop Evolution, Год журнала: 2024, Номер unknown

Опубликована: Март 30, 2024

Abstract Intermediate wheatgrass (IWG, Thinopyrum intermedium [Host] Barkworth & D. R. Dewey) has been developed as a perennial grain crop for human consumption along with providing environmental benefits and ecosystem services. Grain products derived from IWG cultivars improved food production have marketed under the registered trademark, Kernza. Development of began in 1980s phenotypic recurrent selection program Rodale Institute (RI) Big Flats Plant Material Center (BFPMC) used plant introductions (PI) National Germplasm System (NPGS) to improve populations IWG. Initial selections were provided The Land (TLI) where they subsequently production, yet identity founder material improved, food-grade not publicly documented. Recently recovered original documents reconstruct early breeding identify most likely 20 PIs that form founders modern Molecular data using genotyping-by-sequencing current elite material, remnant seed initial RI supporting evidence historical records. genetic origin is focused between Black Sea Caspian Stavropol region Russia, smaller contributions collections distant Kazakhstan east Turkey west. This work connects flow germplasm utility NPGS present day being multiple programs around world.

Язык: Английский

Процитировано

3
Seasonal allocation of dry matter and nitrogen in Th. intermedium across stand ages DOI
Laura Fagnant,

Pierre Aubry,

Olivier Duchêne

и другие.

European Journal of Agronomy, Год журнала: 2025, Номер 164, С. 127522 - 127522

Опубликована: Фев. 2, 2025

Язык: Английский

Процитировано

0
Flour composition, dough, and bread properties of intermediate wheatgrass (Thinopyrum intermedium) compared to annual wheat species DOI Creative Commons
Siri Grandal, Anne Rieder, Tzvetelin Dessev

и другие.

Food Chemistry, Год журнала: 2025, Номер 474, С. 143205 - 143205

Опубликована: Фев. 4, 2025

Язык: Английский

Процитировано

0
Modeling carbon allocation strategies for high-yielding perennial crops DOI
Erin Kilbane, Timothy E. Crews, Lee R. DeHaan

и другие.

European Journal of Agronomy, Год журнала: 2025, Номер 166, С. 127559 - 127559

Опубликована: Март 3, 2025

Язык: Английский

Процитировано

0
Transcriptome and Weighted Gene Co-Expression Network Analysis to Characterize the Expression of Genes Related to Yield Traits in Yunnan Hulled Wheat DOI Open Access

Qianchao Wang,

Chuanli Zhang, Yirui Guo

и другие.

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(6), С. 2542 - 2542

Опубликована: Март 12, 2025

Yunnan hulled wheat (YHW) is a wild ancestor of cultivated and possesses rich genetic variation; however, there limited research on teff at the molecular level. Therefore, in this study, two lines with large differences kernel size were used as materials, their kernels sampled 7, 21, 35, 49 days after flowering; surface area thousand weight measured analyzed; transcriptome sequencing analysis was also performed, which showed that total 88,801 genes annotated by Kyoto Encyclopedia Genes Genomes (KEGG); functional annotation key pathways they involved yield traits mainly enriched gycolysis/gluconeogenesis, pentose glucuronate interconversions, amino sugar nucleotide metabolism, starch, sucrose metabolism pathways, TraesCS5B02G356300, TraesCS7B02G375300, TraesCS7A02G473900, TraesCS2B02G390700 differed significantly different subgroups; significant difference observed between subgroups using weighted gene co-expression network (WGCNA) associated traits. Ten core mined from modules highest correlation target These results provide theoretical reference basis for interpreting expression patterns trait-responsive YHW, further conservation utilization germplasm resources rare wheat, screening high-yielding superior varieties.

Язык: Английский

Процитировано

0
Maintaining grain yield of Th. intermedium across stand age through constant spike fertility and spike density: Understanding its response to various agronomic managements DOI
Laura Fagnant, Olivier Duchêne, Florian Celette

и другие.

European Journal of Agronomy, Год журнала: 2023, Номер 152, С. 127038 - 127038

Опубликована: Ноя. 23, 2023

Язык: Английский

Процитировано

5
Grain Yield Potential of Intermediate Wheatgrass in Western Canada DOI Creative Commons

Patrick M. LeHeiget,

Emma McGeough, Bill Biligetu

и другие.

Agriculture, Год журнала: 2023, Номер 13(10), С. 1924 - 1924

Опубликована: Сен. 30, 2023

Intermediate wheatgrass (Thinopyrum intermedium; IWG) is a temperate perennial grass capable of performing in dual-purpose grain cropping systems. It valued for its ecosystem services and forage yield quality that can be utilized many livestock Development potential has been the focus breeding programs more than two decades, agronomic management becoming important, as commercialization crop occurred. This research focused on nitrogen intercropping components western Canada. Treatments consisting non-fertilized control, an interseeded with IWG/Trifolium hybridum, fertilized treatment (50 kg N ha−1) were investigated at four locations. Drought conditions experienced some years, resulting loss three Fertilization increased harvest years influenced least one instance across Third-year harvests higher or equal to year locations harvested, applied increasing average by 200 ha−1 three. Inflorescence density important component after first production year. The consistent yields reproductive was demonstrated, enhancing sustained productivity.

Язык: Английский

Процитировано

3