Comparison of white clover varieties under cutting and grazing

Swift, Gabriel; Morrison, M. W.; Cleland, A.; Smith-Taylor, C. A. B.; Dickson, J. M.

doi:10.1111/j.1365-2494.1992.tb02241.x

Cited by 30 publications

(16 citation statements)

References 8 publications

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“…The lesser growth of S184 than of Sonja indicates less use of available resources by the clover with S 184 than with Sonja, even if their growth dynamics are similar. The lesser growth of small-leafed than larger-leafed varieties is in agreement with what is known from cut swards (Swift et al, 1992). In the first year of the experiments, the winter was colder and the estimated amount of white clover much larger than in the third year, indicating that the differences among varieties in winter hardiness were more important in the first year than in the third.…”

Section: Discussionsupporting

confidence: 77%

Influence of White Clover Traits on Biomass and Yield in Winter Wheat- or Winter Oilseed Rape-Clover Intercrops

Bergkvist

2003

Biological Agriculture & Horticulture

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The potential to usc differences in traits of white clover (Trifolium repens L.) varieties to improve mature yield of winter wheat or winter oilseed rape (Brassica napus L.) sown in white clover living mulch was studied in two field experiments conducted in Southern Sweden. The clover varieties Sonja, S 184 and AberCrest, differing in leaf size and winter hardiness, were undersown in spring barley. Three consecutive crops of winter wheat or one crop of winter rape sown at two densities followed the barley. In the first year, the mature yields of wheat and high density rape equalled yields without white clover when AberCrest was used, while Sonja reduced the wheat yield by one third and the rape yield to nothing. S 184 was intermediate. White clover increased yields by 14-19% in the second wheat crop, but had no effect in the weed infested third wheat crop. The average amount of white clover at t1owering of wheat was always largest with Sonja, which increased its biomass earlier in spring than AberCrest. It was concluded that white clover traits are important when developing the intercropping system for large mature yields, especially when herbicides are avoided.

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Section: Discussionsupporting

confidence: 77%

Influence of White Clover Traits on Biomass and Yield in Winter Wheat- or Winter Oilseed Rape-Clover Intercrops

Bergkvist

2003

Biological Agriculture & Horticulture

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“…Under rotational grazing, variation among earlymaturing cultivars was significant in both production years, while variation among late-maturing cultivars was significant only in 1990 (Table I and Fig. 1 (Calder et al 1970;Frame and Hunt 1971;Jones and Roberts 1986;Swift et al 1992 For personal use only. (Tables 8 and 9).…”

Section: Results and Discussion Dry Matter Productionmentioning

confidence: 99%

Differences among orchardgrass cultivars in response to hay and rotational grazing management

Papadopoulos¹,

Price²,

Laflamme³

et al. 1995

Can. J. Plant Sci.

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This study was conducted to compare orchardgrass (Dactylis glomerata L.) cultivar performance under contrasting management systems (hay vs. rotational grazing) during the first two production years. The trial consisted of eight orchardgrass cultivars broadcast seeded in a randomized complete-block design, with three replications. The perimeter of each replication was fenced, and the area was divided into two sections. The first section was managed as a simulated hay production system. The second section was managed by simulating a rotational grazing system using crossbred ewes. Dry matter (DM) yield was determined before harvesting or grazing. Tiller density (TD) and leaf area index (LAI) were measured on four cultivars prior to harvesting and grazing. Excellent DM yield and persistence were obtained from all cultivars in both years under hay management but varied considerably under grazing management. Cultivar ranking according to DM yield under hay management was different from ranking based on performance under pasture management. One group of four cultivars had a decrease in yield of 19.9% in the second year of grazing, over the first year, but yield of the remaining group increased by 5.7% (SED = 9.83). Production of hay was similar for both groups. Early-maturing cultivars yielded 7% more DM and had higher crop growth rates (CGR), LAI and TD than late-maturing cultivars. Growth characteristics of orchardgrass cultivars as measured by DM yield, CGR, LAI and TD were modified by management practice. As a result, evaluating orchardgrass varieties under a hay management system was not effective in determining their performance under grazing. Key words:Dactylis glomerata, cultivar evaluation, cultivar development, grazing, yield, yield components

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“…1975 Description: Large-leaved (Frame 1987;Gilliland 1992;Swift et al 1992). Intermediate leaf size, acyanogenic (Caradus et al 1989a) but also described as having moderate HCN production (Wheeler & Vickery 1989;Crush & Caradus 1995;Lehmann et al 1995) and low HCN production (Mika 1984;Mowat & Shakeel 1989).…”

Section: Milka IImentioning

confidence: 99%