Maintaining Constant Grain Yield of Thinopyrum Intermedium: Navigating Through the Physiology of Perennial Grasses and its Response to Various Agronomic Management Techniques DOI
Laura Fagnant, Olivier Duchêne, Florian Celette

и другие.

Опубликована: Янв. 1, 2023

Thinopyrum intermedium subsp. (Host) Barkworth & D.R. Dewey is a perennial grass proposed as dual-use crop for both forage and grain. Being in the nascent stage of domestication, its yield potential still low compared to annual counterparts. The understanding grain (GY) elaboration Th. field limited along with response agronomic management. To identify interrelations between development traits their influence on GY, various measurements were evaluated during 4 growing seasons grown conducted under autumn defoliation operations nitrogen (N) fertilizations. Under some treatments, GY remained constant over four years experiment mean 1t ha-1resulting from spike fertility density level above 400spikes m-2. However, significant regression inhibition reproductive growth tillers can occur when number too high and/or resources scarce (i.e., unfertilized plots or water deficiencies). In addition, excessive aboveground production at beginning phase be detrimental final through negative tiller biomass (DMtot) per spike. highest was observed second year means 1447tillers m-2 16t DM ha-1 harvest. Although N fertilization positively associated density, DMtot could enhanced by fertilization. this way, 50kg combined tillering sustain without hampering production. autumn, plant regrowth only first value 1.9t ha-1. Autumn decreased next reduce but it has been compensated higher TKW no indicating that had impact GY. Therefore, fertile soil conditions good stand establishment, early induced tillers, overproduction spikes, we demonstrated maintained ageing. future, breeding should enable greater allocation grains increasing rationalizing new rhizome propagation compromising vigor environmental performances.

Язык: Английский

Tailored policies for perennial woody crops are crucial to advance sustainable development DOI
Carlos Martínez‐Núñez, Elena Velado‐Alonso, Jacques Avelino

и другие.

Nature Sustainability, Год журнала: 2024, Номер unknown

Опубликована: Дек. 19, 2024

Язык: Английский

Процитировано

0

David Pimentel consistently promoted perennial grains as the future of agriculture DOI
Timothy E. Crews,

Siena Polk

Environment Development and Sustainability, Год журнала: 2023, Номер unknown

Опубликована: Авг. 7, 2023

Язык: Английский

Процитировано

0

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

и другие.

Research Square (Research Square), Год журнала: 2023, Номер unknown

Опубликована: Окт. 10, 2023

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

Язык: Английский

Процитировано

0

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

Процитировано

0

Maintaining Constant Grain Yield of Thinopyrum Intermedium: Navigating Through the Physiology of Perennial Grasses and its Response to Various Agronomic Management Techniques DOI
Laura Fagnant, Olivier Duchêne, Florian Celette

и другие.

Опубликована: Янв. 1, 2023

Thinopyrum intermedium subsp. (Host) Barkworth & D.R. Dewey is a perennial grass proposed as dual-use crop for both forage and grain. Being in the nascent stage of domestication, its yield potential still low compared to annual counterparts. The understanding grain (GY) elaboration Th. field limited along with response agronomic management. To identify interrelations between development traits their influence on GY, various measurements were evaluated during 4 growing seasons grown conducted under autumn defoliation operations nitrogen (N) fertilizations. Under some treatments, GY remained constant over four years experiment mean 1t ha-1resulting from spike fertility density level above 400spikes m-2. However, significant regression inhibition reproductive growth tillers can occur when number too high and/or resources scarce (i.e., unfertilized plots or water deficiencies). In addition, excessive aboveground production at beginning phase be detrimental final through negative tiller biomass (DMtot) per spike. highest was observed second year means 1447tillers m-2 16t DM ha-1 harvest. Although N fertilization positively associated density, DMtot could enhanced by fertilization. this way, 50kg combined tillering sustain without hampering production. autumn, plant regrowth only first value 1.9t ha-1. Autumn decreased next reduce but it has been compensated higher TKW no indicating that had impact GY. Therefore, fertile soil conditions good stand establishment, early induced tillers, overproduction spikes, we demonstrated maintained ageing. future, breeding should enable greater allocation grains increasing rationalizing new rhizome propagation compromising vigor environmental performances.

Язык: Английский

Процитировано

0