2022
DOI: 10.3389/fpls.2022.953400
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Quantitative genetic analysis reveals potential to breed for improved white clover growth in symbiosis with nitrogen-fixing Rhizobium bacteria

Abstract: White clover (Trifolium repens) is integral to mixed pastures in New Zealand and temperate agriculture globally. It provides quality feed and a sustainable source of plant-available nitrogen (N) via N-fixation through symbiosis with soil-dwelling Rhizobium bacteria. Improvement of N-fixation in white clover is a route to enhancing sustainability of temperate pasture production. Focussing on seedling growth critical for crop establishment and performance, a population of 120 half-sibling white clover families w… Show more

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Cited by 3 publications
(7 citation statements)
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“…Recent work by Weith et al . (2022) in a white clover breeding pool characterised the clover quantitative genetics of this symbiosis, indicating opportunities to breed for improved white clover growth in symbiosis with Rlt . In contrast, a study by Moeskjær et al .…”
Section: Discussionmentioning
confidence: 99%
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“…Recent work by Weith et al . (2022) in a white clover breeding pool characterised the clover quantitative genetics of this symbiosis, indicating opportunities to breed for improved white clover growth in symbiosis with Rlt . In contrast, a study by Moeskjær et al .…”
Section: Discussionmentioning
confidence: 99%
“…Seedlings were inoculated with individual rhizobium isolates and grown in a controlled temperature growth room using methods described in Weith et al . (2022). Briefly, 500 g of Grade 3 vermiculite was packed into a 4.4 L container and saturated with 2 L of low-N McKnight’s solution.…”
Section: Methodsmentioning
confidence: 99%
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“…Spill-over benefits of rhizobium have been demonstrated, with the white clover Rhizobium strain TA1 conferring tolerance against Cd toxicity, an impurity in phosphate fertilisers which may have toxic effects on both plant growth and rhizobia activity [167]. Whether variation in nitrogen fixation capacity by genotypes within populations of white clover can be exploited for more effective symbiotic outcomes is yet to be determined [168].…”
Section: Rhizobium Symbiosismentioning
confidence: 99%