Important ecological traits for selecting <i>Biserrula pelecinus</i> L. (biserrula) genotypes for their potential introduction into agricultural systems

Loi, A.; Franca, Antonello; Nutt, Bradley; Yates, Ron; D’Antuono, M.; Howieson, John

doi:10.1111/gfs.12139

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…From this collection two cultivars were developed (Ovalle et al ., ; del Pozo et al ., ). Other annual legume species were introduced, particularly those with small and hard seeds, including biserrula (Loi et al ., ), French and yellow serradellas and balansa, arrowleaf and Persian clovers, as well as new cultivars of subterranean clover. Despite their remarkable productivity, seed yield (Ovalle et al ., ,b; del Pozo and Ovalle, ) and N‐fixation levels (Ovalle et al ., ; Espinoza et al ., ) in the interior dryland and Andean foothills, the adoption of these species remains low.…”

Section: Plants In Mediterranean Grasslandsmentioning

confidence: 99%

Grasslands in ‘Old World’ and ‘New World’ Mediterranean‐climate zones: past trends, current status and future research priorities

Porqueddu

Ateş²,

Louhaichi³

et al. 2016

Grass and Forage Science

100

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Despite their ecological, economic and social importance, grasslands in areas with Mediterranean climates continue to receive limited scientific, political and media attention. The main objectives of this review are to compare and contrast dryland grasslands in the ‘Old World’ regions of the Mediterranean basin (southern Europe, western Asia and North Africa) with those of ‘New World’ regions with Mediterranean climates (Australia and Chile) and to identify common research priorities. The common characteristics and differences in climate, soils, native vegetation, importance of the livestock sector and the socio‐economic background for the different Mediterranean environments are examined. Past trends and the current status of temporary and permanent Mediterranean grasslands are also described. Some common issues between these regions are as follows: (i) adaptation to climate change; (ii) increasing persistence and drought survival of both annual and perennial species; (iii) the important role of forage legumes; (iv) maintaining grassland plant diversity; and (v) improved ecosystem services, such as carbon sequestration, control of soil erosion and wildfires, and preservation of both wild and domestic biodiversity. The favourable climate in these regions, which allows year‐round grazing and the growth of legumes, should be exploited to improve the sustainability of grassland‐based, extensive farming systems and the quality of their animal products, while at the same time improving ecosystem services. The decreasing support for grassland research and development programmes requires increased international scientific and technical cooperation among the few institutions operating in the different Mediterranean‐climate areas of the World to provide innovative and sustainable solutions to farmers.

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Section: Plants In Mediterranean Grasslandsmentioning

confidence: 99%

Grasslands in ‘Old World’ and ‘New World’ Mediterranean‐climate zones: past trends, current status and future research priorities

Porqueddu

Ateş²,

Louhaichi³

et al. 2016

Grass and Forage Science

100

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“…FV is generally assumed by measuring dry matter production from ungrazed swards at peak biomass in spring (e.g. Loi et al 2015) and only considered in the very last step as a means of meeting duty of care requirements of novel species prior to commercialisation (Norman et al 2005;Masters et al 2006;Wilmot et al 2023). There appears to be little effort to match measurement of FV to the critical times in the livestock production cycle when it has the highest consequence.…”

Section: Designing Pasture Improvement Pathwaysmentioning

confidence: 99%

Livestock preference and feeding value as key determinants for forage improvement – why not ask the consumers?

Norman

Masters

2023

Anim. Prod. Sci.

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This review presents a new model for a multidisciplinary approach to development of modern forage cultivars to enable high-value meat and wool production in the mixed farming zones of Australia. Many pasture improvement activities focus on biomass production, filling novel agro-ecological niches, fixing nitrogen and phenotypic markers. Key traits that drive profitability of livestock, such as feeding value (FV), and nutritive value (NV), are rarely considered in a timely manner. Farmers are often not seriously engaged until late in the development pipeline. Of the nearly 10 000 publications that reference forage improvement or breeding and Australia, less than 5% also reference ruminant production factors such as FV, metabolisable energy, digestibility, methane or toxicity in the abstract, title or keywords. We make the case that the late engagement of livestock science and farmers results in early discarding of potentially valuable genetic material. This in turn may contribute to market and nutritional limitations that contribute to the high failure rate of new pasture cultivars. Four case studies demonstrated the within and among species variation in FV and NV. The first showed the variability in dry matter digestibility and crude protein of 20 species of herbaceous perennials at different stages of maturity. A second study with annual legumes, grasses and brassicas indicated highly significant differences in the rate of decline of NV over time and across species. The third case study focused on commercial and experimental accessions of lucerne and demonstrated highly significant differences among accessions in NV, with a doubling of livestock growth expected with the lowest and highest NV accessions. These case studies demonstrated the potential risks associated with evaluation of FV and NV after most of the germplasm has been excluded. The final case study described a different model that was used in the identification and commercialisation of a woody perennial species. This process incorporated a multidisciplinary team, farmers and livestock-relevant characteristics from the start. In 9 years, Anameka™ oldman saltbush was selected for higher palatability, 20% higher organic-matter digestibility and eight times more biomass than the average of the original genetic material.

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“…), yellow serradellas ( Ornithopus compressus L.), biserrula ( Biserrula pelecinus L.), gland clover ( Trifolium glanduliferum Boiss. ), bladder clover ( Trifolium spumosum L.) and eastern star clover ( Trifolium dasyurum L. ) (Howieson et al , 2000, Loi et al , 2001, 2005, 2014, Nutt et al , 2021 a ). These species have also been selected for their deep root systems (which extend the growing period), seed dormancy mechanisms that protect seeds from germinating during out-of-season rainfall and allow regeneration after a cropping phase (Loi et al ., 2005; Nutt et al , 2021 a ), tolerance to pests and diseases and ability to harvest large quantities of seed with non-specialist machinery (Howieson et al , 2000; Loi et al , 2005, 2008, 2010 and 2012).…”

Section: Introductionmentioning

confidence: 99%

Cereal and oil seed crops response to organic nitrogen when grown in rotation with annual aerial-seeded pasture legumes

Loi

Thomas²,

Yates³

et al. 2022

J. Agric. Sci.

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Nitrogen fixation from pasture legumes is a fundamental process that contributes to the profitability and sustainability of dryland agricultural systems. The aim of this research was to determine whether well-managed pastures, based on aerial-seeding pasture legumes, could partially or wholly meet the nitrogen (N) requirements of subsequent grain crops in an annual rotation. Fifteen experiments were conducted in Western Australia with wheat, barley or canola crops grown in a rotation that included the pasture legume species French serradella (Ornithopus sativus), biserrula (Biserrula pelecinus), bladder clover (Trifolium spumosum), annual medics (Medicago spp.) and the non-aerial seeded subterranean clover (Trifolium subterraneum). After the pasture phase, five rates of inorganic N fertilizer (Urea, applied at 0, 23, 46, 69 and 92 kg/ha) were applied to subsequent cereal and oil seed crops. The yields of wheat grown after serradella, biserrula and bladder clover, without the use of applied N fertilizer, were consistent with the target yields for growing conditions of the trials (2.3 to 5.4 t/ha). Crop yields after phases of these pasture legume species were similar or higher than those following subterranean clover or annual medics. The results of this study suggest a single season of a legume-dominant pasture may provide sufficient organic N in the soil to grow at least one crop, without the need for inorganic N fertilizer application. This has implications for reducing inorganic N requirements and the carbon footprint of cropping in dryland agricultural systems.

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Important ecological traits for selecting Biserrula pelecinus L. (biserrula) genotypes for their potential introduction into agricultural systems

Cited by 6 publications

References 23 publications

Grasslands in ‘Old World’ and ‘New World’ Mediterranean‐climate zones: past trends, current status and future research priorities

Grasslands in ‘Old World’ and ‘New World’ Mediterranean‐climate zones: past trends, current status and future research priorities

Livestock preference and feeding value as key determinants for forage improvement – why not ask the consumers?

Cereal and oil seed crops response to organic nitrogen when grown in rotation with annual aerial-seeded pasture legumes

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