Productivity and persistence of Trifolium hirtum, T. michelianum, T. glanduliferum and Ornithopus sativus sown as monocultures or in mixtures with T. subterraneum in the south-eastern Australian wheat belt

Dear, Brian; Sandral, Graeme; Wilson, B. C. D.; Rodham, Craig; McCaskie, P.

doi:10.1071/ea01138

Cited by 20 publications

(27 citation statements)

References 6 publications

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“…Low seed yields for some of the entries did not necessarily translate into fewer seedlings the year following the trial (Table 6) BEBLK black medic had the greatest seed yield, over 1700 kg ha −1 yr −1 when averaged over years and harvest regimes. Seed yields for some species were greater than those reported in other trials with the same species (Muir et al, 2001; Dear et al, 2002). George black medic was the only entry, among the lower seed producers, whose forage yields the second season may have been negatively affected by low first‐season seed yields.…”

Section: Resultsmentioning

confidence: 54%

Trade‐Offs in Forage and Seed Parameters of Annual Medicago and Trifolium Species in North‐Central Texas as Affected by Harvest Intensity

2005

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value and seed production is likewise affected by climate and soil (Cocks, 1995). The trade-off between early spring harvest of cool-season annualMore information is needed, however, on the approforage legumes and summer seed production may shed light on subsepriate management of naturalized and cultivated annual quent yearly stand regeneration. Sixteen annual clover and medic cullegume stands. Although seed production is essential tivars or locally collected accessions were seeded in the autumn of for stand persistence (Muir et al., 2001) and can be af-1999 at Stephenville, TX, on a Windthorst (fine, mixed thermic Udic Paleustalf) fine sandy loam and allowed to self-reseed in the autumn fected by harvest regime (Muir and Reed, 1998) and of 2000 and 2001. During the first 2 yr, three harvest treatments were climate (Cocks, 1995), little is known about the tradeimposed: harvest at 5 cm from crown whenever branches reached off between forage and seed production as affected by 10 cm from crown, harvest at 10 cm when branches attained 15 cm, plant harvest height, particularly as herbage removal and a single April harvest. Forage yields showed a year ϫ species influences stand regeneration in subsequent years. The interaction (P ϭ 0.001) and ranged up to 6 Mg ha Ϫ1 yr Ϫ1 . Plants harobjective of this study was to examine the effects of vested in April only were consistently more productive than the 5-cm harvest height on seed production and season-long forharvest and yielded nearly 4.9 Mg ha Ϫ1 in Year 1. Forage acid detergent age production and nutritive value of sixteen self-reseedfiber and crude protein concentrations reflected entry ϫ harvest ϫ ing winter annual forage legumes.year interactions (P Ͻ 0.05). Seed yields varied considerably among entries, and all the annual clovers and most medics were able to self-

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Section: Resultsmentioning

confidence: 54%

Trade‐Offs in Forage and Seed Parameters of Annual Medicago and Trifolium Species in North‐Central Texas as Affected by Harvest Intensity

2005

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“…It produces the smallest seed of these annual clovers (Hackney et al 2007). Studies conducted in New South Wales, Australia found that gland clover out-yielded subterranean clover in the first year but declined rapidly as it struggled to compete with subterranean clover seedlings in the autumn (Dear et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Effects of closing date on seeding and hardseededness of balansa, gland, Persian and arrowleaf clovers on East Coast dryland

MacFarlane¹,

Crofoot²,

Muir³

2015

Journal of NZ Grasslands

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Four annual clovers (Arrowleaf (Trifolium versiculosum), balansa (T. michelianum), Persian (T. resupinatum) and gland (T. glanduliferum)) were sown on five East Coast dryland farms and one moist Taranaki site. Hardseededness was measured at all sites and seed production and hardseededness was measured at three sites following different closing dates. There were no differences in seed size for any species between sites or closing dates. High levels of seed (500-700 kg/ha) were set by balansa and arrowleaf clovers after an early closing date (early September). Flowering and seed production decreased with later closings. Gland clover was the earliest to flower and with Persian clover was very susceptible to early grazing. Gland clover produced virtually no seed as flowers had already been grazed prior to the first closing. Arrowleaf clover produced very high levels (>92%) of hard seed and Persian very low levels (

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“…The forage species associated with sweet clover disease do not feature in Australian grazing systems and the pasture species used in Australia do not normally have high levels of coumarins. However, recent interest in gland clover (Trifolium glanduliferum; Dear et al 2002;Masters et al 2006), which contains coumarins, suggests the need for some caution until the quantitative effects of gland clover coumarins are evaluated. In the recent work by Masters et al (2006), coumarin levels in gland clover were of the order of 300 mg/kg DM and coumarin intakes by sheep were less than 600 mg/day.…”

Section: Vitamin Kmentioning

confidence: 99%

Nutrient Requirements of Domesticated Ruminants

Freer¹,

Dove²,

Nolan³

2007

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Nutrient Requirements of Domesticated Ruminants draws on the most up-to-date research on the energy, protein, mineral, vitamin and water requirements of beef and dairy cattle, sheep and goats. It defines the responses of animals, in weight change, milk production and wool growth, to quantitative and qualitative changes in their feed supply. It has particular application to grazing animals. Factors affecting the intake of feed are taken into account and recommendations are given according to the production systems being used; for instance, the feed intake of a grazing animal is affected by a larger number of variables than a housed animal. Examples of the estimation of the energy and nutrients required for the different production systems are given, as well as the production expected from predicted feed intakes. The interactions between the grazing animal, the pasture and any supplementary feeds are complex, involving herbage availability, diet selection and substitution. To facilitate the application of these recommendations to particular grazing situations, readers are directed to decision support tools and spreadsheet programs. Nutrient Requirements of Domesticated Ruminants is based on the benchmark publication, Feeding Standards for Australian Livestock: Ruminants, published in 1990 by CSIRO Publishing on behalf of the Standing Committee on Agriculture. It provides comprehensive and useful information for graziers, livestock advisors, veterinarians, feed manufacturers and animal nutrition researchers. The recommendations described are equally applicable to animals in feedlots or drought yards.

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Productivity and persistence of Trifolium hirtum, T. michelianum, T. glanduliferum and Ornithopus sativus sown as monocultures or in mixtures with T. subterraneum in the south-eastern Australian wheat belt

Cited by 20 publications

References 6 publications

Trade‐Offs in Forage and Seed Parameters of Annual Medicago and Trifolium Species in North‐Central Texas as Affected by Harvest Intensity

Trade‐Offs in Forage and Seed Parameters of Annual Medicago and Trifolium Species in North‐Central Texas as Affected by Harvest Intensity

Effects of closing date on seeding and hardseededness of balansa, gland, Persian and arrowleaf clovers on East Coast dryland

Nutrient Requirements of Domesticated Ruminants

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