Registration of ‘AU Dewey’ Birdsfoot Trefoil

Pedersen, J. F.; Haaland, R. L.; Hoveland, C. S.

doi:10.2135/cropsci1986.0011183x002600050054x

Cited by 11 publications

(3 citation statements)

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“…(Steiner, 1999). Even though both AU Dewey (Pedersen et al, 1986) and Kalo (D. Darris,1996, personal communication) in the core subset are reported to have rhizomes, neither exhibited the trait in this experiment but were also placed in the European pool. PI 234670 was entered into GRIN in 1956, but was not reported to display rhizomes until recently (Steiner and Garcia de los Santos, 2001).…”

Section: Resultsmentioning

confidence: 73%

A Description and Interpretation of the NPGS Birdsfoot Trefoil Core Subset Collection

Steiner

Beuselinck²,

Greene

et al. 2001

Crop Science

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active collection. This should increase evaluation efficiency, reduce the number of accession requests, and re-Systematic evaluations for a range of traits from accessions in duce the frequency and costs for collection regeneration National Plant Germplasm System (NPGS) core subset collections (Greene and McFerson, 1994). Well characterized collecshould assist collection management and enhance germplasm utilization. The objectives of this research were to: (i) evaluate the 48-accession tions can help plant explorers develop plans for collect-NPGS birdsfoot trefoil (Lotus corniculatus L.) core subset collection ing unique genetic materials that are not represented by by means of a variety of biochemical, morphological, and agronomic present ex situ collection holdings (Steiner and Greene, characters; (ii) determine how these characters were distributed among 1996; Greene et al., 1999a,b). the core subset accessions and associations among plant and ecogeo-

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Section: Resultsmentioning

confidence: 73%

A Description and Interpretation of the NPGS Birdsfoot Trefoil Core Subset Collection

Steiner

Beuselinck²,

Greene

et al. 2001

Crop Science

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“…Three of the cultivars were not specifically selected for resistance to Fusarium oxysporum f. sp. loti : AU Dewey (Pederson et al, 1986), Bright (Twamley et al, 1997), and Steadfast or ARS 2620 (Beuselinck and Steiner, 1996). For the two cultivars Exact and Wellington, seed was acquired from Canada and were not expected to have resistance to Fusarium oxysporum f. sp.…”

Section: Methodsmentioning

confidence: 99%

Improving Birdsfoot Trefoil for Resistance to Fusarium Wilt

et al. 2011

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Fusarium wilt (caused by Fusarium oxysporum f. sp. loti) is a serious disease of birdsfoot trefoil, Lotus corniculatus L., reducing yield of forage and seed. In the early 1990s a breeding program was begun to breed a Fusarium wilt‐resistant birdsfoot trefoil. Our objectives were to (i) determine progress from recurrent phenotypic selection for resistance to Fusarium wilt in six birdsfoot trefoil populations and (ii) compare forage yield and persistence of Fusarium wilt‐resistant populations to unselected populations in field trials. Recurrent phenotypic selection was effective in improving resistance in the greenhouse, with mean improvement of 35% across all populations after three cycles of selection. In a field with high natural disease pressure, a population developed after two cycles of selection for resistance had lower levels of disease incidence and yielded 1.33 Mg ha−1 more than the mean of nine cultivars in the seeding year. The Fusarium wilt‐resistant population had 52% higher plant stand than the mean of the other cultivars at the end of the first production year. In a trial inoculated with the Fusarium wilt organism, two cycle 3 populations averaged 28% more yield by June of the fourth production year and 22 more plants per m2 than the mean of the unselected populations. Birdsfoot trefoil with resistance to Fusarium wilt yielded more and persisted longer than other cultivars under Fusarium wilt‐infested field conditions.

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“…B IRDSFOOT TREFOIL has been used as a pasture and hay crop in the northern USA for many years. Cultivars and a germplasm have recently been released that should extend the area of adaptation of this species further south (Fales et al, 1986;Pedersen et al, 1986). Management information for these new releases is lacking, and it has not been determined whether morphological or physiological traits differ from the northern cultivars.…”

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confidence: 99%

Birdsfoot Trefoil Management. I. Root Growth and Carbohydrate Storage

Alison

Hoveland

1989

Agronomy Journal

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Management research is lacking for birdsfoot trefoil (Lotus corniculatus L.) cultivars adapted to the southeastern USA. This study was conducted to determine the effect of harvest interval and stubble height on root growth and carbohydrate storage of five birdsfoot trefoil entries. Two field experiments were conducted on a Cecil sandy loam (clayey, kaolinitic, thermic Typic Hapludult) soil near Athens, GA. One experiment consisted of two birdsfoot trefoil entries ('Fergus' and GA 1), three harvest intervals (21, 28, and 42 d), and two stubble heights (5 and 10 em). The other experiment had five birdsfoot trefoil entries ('AU Dewey', 'Dawn', Fergus, GA 1, and 'Noreen') harvested on 21-d intervals at three stubble heights (3, 5, and 10 em). The AU Dewey and GA 1 entries, selected in Alabama and Georgia, respectively, had greater root weights and diameter than the northern-developed cultivars. In the spring following 2 yr of harvest, root weights of Fergus and GA 1 were reduced 17 and 26%, respectively, when the harvest interval of the previous 2 yr had been 21 instead of 42 d. Raising the stubble height reduced fluctuations in carbohydrate reserves during regrowth. Total nonstructural carbohydrate (TNC) levels were greater in midseason when the stubble height was 10 instead of 3 em. A positive correlation was found between spring herbage yields and the mean TNC level of the 2 preceding years. This correlation suggests a cumulative effect by carbohydrate levels on vigor of birdsfoot trefoil stands and management should be designed to maintain relatively high TNC levels.

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Registration of ‘AU Dewey’ Birdsfoot Trefoil

Cited by 11 publications

References 0 publications

A Description and Interpretation of the NPGS Birdsfoot Trefoil Core Subset Collection

A Description and Interpretation of the NPGS Birdsfoot Trefoil Core Subset Collection

Improving Birdsfoot Trefoil for Resistance to Fusarium Wilt

Birdsfoot Trefoil Management. I. Root Growth and Carbohydrate Storage

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