Background and AimsSeed germination is negatively affected by salinity, which thought to be due both osmotic ion-toxicity effects. We hypothesize that salt absorbed seeds, allowing them generate additional potential, germinate in conditions under they would otherwise not able germinate.

Journal Article A Modified Self-thinning Equation to Describe Size/Density Relationships for Defoliated Swards Get access C. Matthew, Matthew Search other works by this author on: Oxford Academic PubMed Google Scholar G. Lemaire, Lemaire N. R. Sackville Hamilton, Hamilton A. Hernandez-Garay Annals of Botany, Volume 76, Issue 6, December 1995, Pages 579–587, https://doi.org/10.1006/anbo.1995.1135 Published: 01 1995

The aim of this study was to investigate the effect salinity stress on root growth at phytomer level in wheat provide novel site-specific understanding damage roots. Seedlings 13 varieties were grown hydroponically. Plants exposed three concentrations NaCl, 0 (control), 50 and 100mM, from 47 days after sowing. In a destructive harvest 12 later we determined number live leaves, adventitious roots, seminal roots newly formed youngest phytomer; length diameter main axes; hairs their per...

Grazing strategies promote changes in sward structure that can affect patterns of herbage accumulation and flexibility to management. This experiment evaluated structural characteristics Mombaça guinea grass (Panicum maximum Jacq. cv. Mombaça) subjected rotational stocking managements. Treatments involved grazing when swards reached either 95 or 100% interception the incident light (LI), post-grazing heights 30 50 cm, were allocated 2,000 m² paddocks according a randomised complete block...

Genetic improvement programs for livestock and pasture plants have been central to the development of New Zealand (NZ) pastoral industry. Although genetic is easily shown improve animal production on-farm, link between less direct. For several reasons, gains in farm output arising from improved plant performance are more difficult confirm than those improvement, which has led some debate industries about traits prioritise future breeding deliver greatest benefit. This review investigates...

Summary Plant disease occurs simultaneously with insect attack. Arbuscular mycorrhizal fungi (AMF) modify plant biotic stress response. and pathogens may volatile organic compound (VOC) production behavior. Nevertheless, such effects are rarely studied, particularly for mesocosms where component organisms interact each other. Plant‐mediated of leaf pathogen ( Phoma medicaginis ) infection on aphid Acyrthosiphon pisum infestation, role AMF Rhizophagus intraradices in modifying these...

Zhang XX, Li CJ, Nan ZB & Matthew C (2011). Neotyphodium endophyte increases Achnatherum inebrians (drunken horse grass) resistance to herbivores and seed predators. Weed Research 52 , 70–78. Summary grass), a grass that is intoxicating grazing animals commonly found within native grasslands of China, host symbiotic endophyte, gansuense . In laboratory tests, N. infections A. increased mortality rates reduced the survival an aphid Rhopalosiphum padi mite Tetranychus cinnabarinus Both...

Asexual cool-season grass endophytes of the genus Epichloë (Ascomycota: Clavicipitaceae) are strictly vertically disseminated. The hosts these mutualistic fungi express no symptoms during fungal lifecycle that takes place entirely within plant, while their receive beneficial outcomes. These distributed in two major locations mature seeds hosts; namely, embryo (including scutellum, coleoptile, plumule, radicle, and coleorhiza tissues) between aleurone pericarp layers, with latter hyphae...

It has been an observation of mine over the last few years that in articles dealing with animal allocation to pasture or rangeland various countries, there are differences between authors units used for some common terms such as stocking rate, density grazing intensity when reporting experiment treatments and data. Some using incorrectly, my opinion. Hence, I thought it would be useful write editorial Grassland Research, setting out a logical framework authors' consideration preparing...

There is uncertainty among plant breeders as to which characteristics select for optimize grass growth dynamics. The objective was study the relationship between leaf length and tillering in perennial ryegrass ( Lolium perenne L.). Two long‐leaved two short‐leaved genetic lines were grown simulated shade near‐full sunlight (control) environments. New Zealand cultivars Ellett (long‐leaved) Grasslands Ruanui (short‐leaved), both early flowering. other late‐flowering divergent selections ‘LL’...

A field study was made of the tiller dynamics New Zealand perennial ryegrass (Lolium perenne L.) cultivars Grasslands Ruanui, selected from a Hawke's Bay ecotype, and Ellett, Mangere ecotype. The work tested whether nitrogen (N) fertiliser or irrigation (Irr) could manipulate persistence strategies these morphologically distinct ecotypes, represented by cultivars. Tiller births deaths, survival, were monitored over 2 years, under rotational grazing dairy cows. Patterns cultivar birth death...

Abstract The objective of this study was to investigate the effects timing and duration lax spring grazing on tiller dynamics in perennial ryegrass swards, with without white clover. Two periods grazing—short release (SR) from 26 October 8 December long (LR) 15 September December—were compared a conventional hard grazing—early control (EC). These treatments were applied swards ryegrass, clover, grazed by sheep. Tiller weight, population density, appearance death, stolon analysed factorial...

Abstract Greenhouse gas (GHG) emissions from livestock grazing systems are contributing to global warming. To examine the influence of yak on GHG fluxes and relationships between environmental factors, we measured carbon dioxide (CO 2 ), methane (CH 4 ) nitrous oxide (N O) over three key seasons in 2012 2013 a range potential sources, including: alpine meadows, dung patches, manure heaps night pens, Qinghai-Tibetan Plateau. We also estimated total annual warming (GWP, CO -equivalents) family...

The objective of this study was to evaluate the occurrence tiller size/density compensation mechanism in Tifton 85 bermudagrass swards grazed by sheep under continuous stocking. Treatments corresponded four sward steady state conditions (5, 10, 15, and 20 cm surface height), maintained grazing. experimental design a complete randomized block with replicates. Pasture responses evaluated include: population density, mass, leaf mass area per tiller, herbage mass. Tiller volume, index, leaf/stem...

Abstract Two lucerne ( Medicago sativa ) varieties, an anecdotally waterlogging‐intolerant old New Zealand variety, Grasslands Wairau, and a reputedly waterlogging‐tolerant new Pioneer 54Q53, were subjected to waterlogging stress range of physiological agronomic measurements performed. Waterlogging was characterized by measurement soil oxygen depletion carbon dioxide accumulation. Both varieties exhibited strong responses stress, including reduction in leaf soluble protein concentration,...