The potential of tetraploid red clover and its role in the United Kingdom

Frame, J.

doi:10.1111/j.1365-2494.1976.tb01124.x

Cited by 32 publications

(38 citation statements)

References 47 publications

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“…Infrequent grazing has been shown to promote high yields from red clover (Brougham 1959;Frame 1976;Pineiro & Harris 1978). This also occurred in the present study except during autumn and winter for grass/clover mixtures, and winter for monocultures.…”

supporting

confidence: 63%

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Comparative performance of three early-flowering red clovers under sheep grazing in Southland

Hickey¹,

Harris²

1989

New Zealand Journal of Agricultural Research

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Three early-flowering red clovers (Trifolium pratense L.) were evaluated under nyo grazing frequencies either as monocultures or WIth Bromus willdenowii Kunth 'Grasslands Matua' prairie grass or Lolium perenne L. 'Grassl~~s Nui' perennial ryegrass for herbag~ pr?rluctlv~ty and persistence. In monoculture, the diplOldexpenmental hybrid G21 (released as 'Grasslands Colenso') and tetraploid G22 gave better cool-season growth than 'Grasslands Hamua'. G22 gave superior spring and summer growth and persisted longer than the diploids. G21 showed more susceptibility to alfalfa mosaic virus than either Hamua or G22. With a companion grass, clover growth and persistency were higher with Nui ryegrass. G22 was inferior to G21 and Hamua when associated with either grass but was more affected by Matua prairie grass. Red clover yields were greater under infrequent grazing.

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supporting

confidence: 63%

“…The major reason for G22's yield superiority over the diploids was its ability to develop plants with larger shoots. Frame (1976) cites several examples of the superior productivity and persistency of tetraploids.…”

Section: Discussionmentioning

confidence: 99%

Comparative performance of three early-flowering red clovers under sheep grazing in Southland

Hickey¹,

Harris²

1989

New Zealand Journal of Agricultural Research

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“…Fodder production in such systems may be increased by 13% by introducing legumes, and previous work has attributed the growth promotion to the fixation of atmospheric N 2 by legumes [12]. In China, clover and ryegrass are commonly grown together in mixtures for fodder production on soils of low P availability.…”

Section: Introductionmentioning

confidence: 99%

Bi-directional transfer of phosphorus between red clover and perennial ryegrass via arbuscular mycorrhizal hyphal links

Yao

et al. 2003

European Journal of Soil Biology

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Perennial ryegrass and red clover were grown in low-P soil in separate compartments within rhizoboxes. The compartments were separated by 30-µm pore nylon mesh and a buffer compartment to prevent root-to-root contact but allow hyphal penetration. Both plant species were established as donor and receiver plants. Donors were inoculated with an arbuscular mycorrhizal (AM) fungus, Glomus mosseae, forming hyphal links between donors and receivers. Two rates of P (50 and 100 mg P kg -1 ) were applied to the soil in the receiver compartments. All other compartments received 50 mg P kg -1 . In one experiment 32 P tracer was applied to the roots of the donors after 6 weeks' growth to detect P transfer from donors to receivers. In a second experiment, plants harvested 2 weeks later were examined for root AM colonisation, shoot yield and P uptake. Arbuscular mycorrhizal fungal inoculation of donor roots led to increased yield, P concentration and P uptake of receiver shoots. Shoot P concentrations were higher in non-mycorrhizal ryegrass than in non-mycorrhizal clover. The 32 P tracer study showed a lower apparent P transfer rate from ryegrass to clover than from clover to ryegrass despite a comparable amount of P transferred. Internal P requirements of the host plants may influence P transfer rates. The AM hyphae formed an important link between the plants but no appreciable net transfer of P was likely to occur.

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“…In several normally diploid crop species, autotetraploids yielding more forage of higher nutritional quality than ancestral diploids have been produced (Frame 1976;Wit 1958). Observations concerning grain yield (Dudley and Alexander 1969) and grain nutritional quality (Freeman et al I 967) of autotetraploid (henceforth referred to as "tetraploid") maize have been reported, but no data are apparently available concerning forage yield or digestibility.…”

mentioning

confidence: 99%

Comparison of Growth, Forage Yield and Nutritional Quality of Diploid and Autotetraploid Maize Synthetics

Atlin¹,

Hunter²

1984

Can. J. Plant Sci.

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Three autotetraploid maize synthetics were compared with four diploid synthetics of similar adaptation in yield trials and growth analysis experiments at several southern Ontario locations, in order to assess the potential of tetraploid maize as a source of forage. No differences were observed among ploidy levels in productivity of whole-plant dry matter, or in nutritional quality of forage. Tetraploids appeared to be lower in dry matter content at harvest and through much of their period of growth.Key words: Silage corn, forage corn, autotetraploid, (Zea mays L.) [

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The potential of tetraploid red clover and its role in the United Kingdom

Cited by 32 publications

References 47 publications

Comparative performance of three early-flowering red clovers under sheep grazing in Southland

Comparative performance of three early-flowering red clovers under sheep grazing in Southland

Bi-directional transfer of phosphorus between red clover and perennial ryegrass via arbuscular mycorrhizal hyphal links

Comparison of Growth, Forage Yield and Nutritional Quality of Diploid and Autotetraploid Maize Synthetics

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