Plant Breeding for Biological Nitrogen Fixation: A Review

Kennedy, Peter; Leonforte, Antonio; Butsch, Mirella

doi:10.1002/9781119053095.ch106

Cited by 2 publications

(2 citation statements)

References 48 publications

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“…With regional needs and Wayman et al's (2017) grower survey in mind, Boots-Haupt et al (2022) and Brasier et al (2021) reported the results of research that aimed to improve the BNF of faba bean cover crop varieties in the western United States. Long-term legume breeding efforts continue to demonstrate the complexity of traits controlling BNF, indicating a need for more directed studies on the physiology and genetics of N fixation (Alves et al, 2003;Kennedy et al, 2015).…”

Section: Core Ideasmentioning

confidence: 99%

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages

Dugger,

Brasier,

Pahlavani

et al. 2024

Crop Science

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Modern legumes are engineered to enhance nutrient allocation to grains and maximize harvest index (HI) and yield. Breeding legumes for cover crop requires optimizing source‐sink relationship to prolong nutrient allocation to vegetative organs, support post‐flowering nodule activity, and extend biological nitrogen fixation (BNF). We studied the variation of faba bean (Vicia faba) germplasm for biomass (DM) and nitrogen (N) allocation to plant organs at the lower and upper parts of the canopy. Three genotypes were established during the 2019 and 2020 growing seasons, and DM, N, and δ15N of upper and lower leaves, stems, pods, seeds, and pod shells were quantified at vegetative, first‐pod, and full‐pod stages. Of the three genotypes, PI 678631 displayed early vigor, allocated more DM and N in vegetative organs, and accumulated more total DM and N than Windsor and PI 655333 by first‐pod stage. The advantage of PI 678631 over the other two genotypes seemed to be associated with smaller allocation of DM and N in pods at early reproductive phase. These findings support existing variations within faba bean germplasm that can be used to improve its ecosystem service as cover crop. Within‐plant variation of δ15N was minimal, suggesting that under favorable soil N and moisture where N remobilization is low, vegetative organs can serve as proxies to estimate the entire plant %Ndfa (proportion of plant N derived from the atmosphere) prior to plant maturity. The δ15N of plant organs at vegetative and early‐pod stages were similar and consistent with the only whole plant δ15N measurement in 2020.

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Section: Core Ideasmentioning

confidence: 99%

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages

Dugger,

Brasier,

Pahlavani

et al. 2024

Crop Science

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“…These traits often include resistance to pathogens and nematodes, improved fatty acid profiles (expression of a higher level of oleic acid), pod and quality characteristics that address needs for specific markets, and increasing yield potential in both the presence and absence of biotic and abiotic stresses (Holbrook et al., 2016). Research in genetics and breeding is also underway to address the complicated issues of aflatoxin contamination, drought stress, nitrogen fixation efficiency, and pod and seed maturity (Desmae et al., 2018; Devi, Rowland, Payton, Faircloth, & Sinlcair, 2013; Holbrook et al., 2016; Kennedy, Leonforte, & Butsch, 2015). However, selection for new traits for improved insect and weed management, nutrient use efficiency, and other production limitations has not been a significant component of public commercial cultivar development programs.…”

Section: Importance Of Improved Cultivars In Peanut Production Systemsmentioning

confidence: 99%

Risk to sustainability of pest management tools in peanut

Jordan

Dunne

Stalker

et al. 2020

Agricultural & Env Letters

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A diversity of pests can adversely affect peanut (Arachis hypogaea L.) yield, quality, and financial return. Farmers rely heavily on applied chemicals to suppress many of the economically important pests present in peanut. The effectiveness of this approach to pest management may not be sustainable, however, due to evolved resistance in pests to chemicals, reluctance of basic chemical manufacturers to invest in product development because of the relatively small market for peanut compared with other crops, cost to initially register or re‐register chemicals, and the desire for peanut buyers and processors to capture international markets that may have varying agrochemical residue restrictions for peanut. Heavy reliance on chemical control could leave peanut production systems vulnerable to yield loss; thus, a more concerted research effort is needed to increase the number and availability of nonchemical tools that protect peanut from pests in order to ensure long‐term sustainability of peanut production systems.

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Plant Breeding for Biological Nitrogen Fixation: A Review

Cited by 2 publications

References 48 publications

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages

Risk to sustainability of pest management tools in peanut

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Plant Breeding for Biological Nitrogen Fixation: A Review

Cited by 2 publications

References 48 publications

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ115N variation of faba bean at different growth stages

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ115N variation of faba bean at different growth stages

Risk to sustainability of pest management tools in peanut

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Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages

Steps toward developing legume cover crop varieties: Study of biomass and nitrogen partitioning and within‐plant δ1¹⁵N variation of faba bean at different growth stages