perennial

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perennial

a plant that lives from year to year in a form other than seed. Plants with woody stems are generally perennials (e.g. trees, shrubs and woody vines), but so too are many herbaceous plants (e.g. dandelion, daisy and plantain), in which the aerial parts die back during the winter leaving perennating organs (e.g. tubers, corms and bulbs) underground.

Perennial

Present at all seasons of the year.
References in periodicals archive ?
Kentucky bluegrass, perennial ryegrass, tall fescue, and common bermudagrass seeds are planted into the turf with an overseeding machine.
Whether resistance to gray leaf spot in perennial ryegrass is qualitative or quantitative has not been fully elucidated.
In the perennial treatments, cumulative DM production was greatest for the grazed perennial ryegrass and least for the mown perennial ryegrass with other treatments intermediate.
Herbert) Yaegashi & Udagawa] resistance in two genomic regions of perennial ryegrass, and one of the regions appears syntenic with rice linkage group 7.
In autumn, common Bermuda grass can be overseeded with perennial ryegrass for a good-looking winter lawn.
But the runners-up were dairy farmers A & JM Astley, of Cefn Mawr Farm, Deytheur, Llansantffraid, who run a herd producing 8,565 litres-a-cow The Powys Grassland Society members used a two-cut system of perennial ryegrass crops, again using additives.
The team is using high-sugar varieties of perennial ryegrass and experimenting with different soils, fertilisers and companion crops such as white clover, with the aim of reducing dependency on artificial oil-based fertilisers.
Prochloraz was found efficient in eliminating Neotyphodium endophytes from perennial ryegrass and tall fescue seeds.
About one-third of Oregon's perennial ryegrass is grown by farmers who belong to the bargaining association.
They aim to cut production costs by grazing lambs on leys at a rate of 70% perennial ryegrass and 30% red clover.
The three year Grassohol project at Aberystwyth University's Institute of Biological, Environmental and Rural Sciences (IBERS) is focusing on sugar-rich varieties of perennial ryegrass as a raw material for producing bio-ethanol.