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Articles 61 - 90 of 133
Full-Text Articles in Weed Science
Brassica Rapa - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Brassica Rapa - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Brassica rapa (turnips). Turnips along with ‘Swedes’ (Brassica napus var. napobrassica) are members of the brassica or crucifer family which also includes cauliflower, broccoli, cabbage, radish and Brussels sprouts. The edible portion is called a 'root’ but is the enlarged base of the stem. They are biennial plants grown commercially as annuals. The species also …
Cenchrus Ciliaris - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cenchrus Ciliaris - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Buffel grass (Cenchrus ciliaris). Buffel grass (Cenchrus ciliaris) is a perennial grass forming tufted tussocks to 1m which is native to large parts of Africa, Arabian Peninsula, western Asia, Middle East and the Indian sub-continent (Humphreys 1967). Seedheads form a dense, hairy cylindrical spike, with straw-coloured burrs or fascicles comprising 1-4 spikelets which are light …
Vigna Unguiculata - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Vigna Unguiculata - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Vigna unguiculata (cowpea). Vigna unguiculata (cowpea) originates from West Africa (Cook et al. 2020) with an additional centre of genetic diversity in Southern India (Krishna 2014). Ba et al. (2004) found that domesticated cowpea showed a high genetic variability. Combined with high morphological diversity this has resulted in a complex taxonomy which has been reviewed …
Medicago Truncatula - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Medicago Truncatula - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Barrel medic (Medicago truncatula). Barrel medic is a temperate annual pasture legume native to the Mediterranean region which is adapted to a wide range of soils from sandy loams to clays but prefers a neutral to alkaline pH (pHwater > 6.5), and not prone to waterlogging or salinity. It is more productive and persistent in low …
Desmanthus Virgatus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Desmanthus Virgatus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Desmanthus (Desmanthus virgatus). Desmanthus is a summer-growing, perennial legume adapted to neutral to alkaline, clay soils.
Stylosanthes Guianensis Var. Intermedia - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Stylosanthes Guianensis Var. Intermedia - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Fine stem stylo (Stylosanthes guianensis var. intermedia) Fine stem stylo is a tropical, low growing, perennial legume adapted to low fertility soils.
Cichorium Intybus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cichorium Intybus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Chicory (Cichorium intybus). Chicory is a short-term (two to five years) perennial pasture herb native to Europe, temperate and tropical Asia and North Africa. It has been cultivated as both a summer forage and as a ‘coffee substitute’ for centuries and was introduced into Australia in the 19th century. In experimental trials in northern Western …
Dactylis Glomerata - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Dactylis Glomerata - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Cocksfoot (Dactylis glomerata). Cocksfoot (also orchard grass) is a cool-season (temperate) perennial bunch pasture grass native to Europe, northern Africa and temperate Asia. It has been introduced to other temperate parts of the world including North and South America, South Africa, New Zealand and Australia because of its value as a pasture plant. Cocksfoot is …
Panicum Coloratum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Panicum Coloratum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Bambatsi panic (Panicum coloratum). Bambatsi panic is a sub-tropical, tufted perennial grass adapted to fertile, clay soils. It will persist on sandy soils but with low productivity.
Cajanus Cajan - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cajanus Cajan - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Pigeon pea (Cajanus cajan). Pigeon pea is an annual or perennial legume which is widely cultivated in tropical and sub tropical regions around the world for both human consumption and as a forage/cover crop.
Lolium Multiflorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Lolium Multiflorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Italian ryegrass (Lolium multiflorum). Italian ryegrass is a long season annual or biennial pasture grass which are diploid or tetraploid hybrids. It is used as a short-term pasture or as a high-yielding silage/hay crop and so requires regular re-seeding. In south-western Australia Italian ryegrass is included in pasture mixes in high rainfall dairy pastures. In …
Medicago Polymorpha - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Medicago Polymorpha - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Burr medic (Medicago polymorpha). Burr medic is a temperate annual pasture legume native to the Mediterranean region which is adapted to a range of soils from sandy loams to clays of moderate fertility because it is adapted to slightly acidic (pHCa >4.8) to alkaline (pHwater < 9.0) soils and can tolerate transient waterlogging. Burr medic is widely naturalised in southern Western Australia (WA) and commercial use followed the identification of cultivars without spines, which contaminate wool (Gillespie 2001; Howie et al. 2007). In experimental trials in northern WA the annual legumes and herbs had good feed quality but in general, with low forage yields under irrigation, are unlikely to be economically viable (Moore et al. 2021). In the southern rangelands, burr medic is widely naturalized in the Goldfields region.
Vaccinium Corymbosum Hybrids - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Vaccinium Corymbosum Hybrids - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Blueberry hybrids, Vaccinium corymbosum L. x Vaccinum ashei x Vaccinum darrowi. The blueberry (Vaccinium spp.) is an evergreen perennial shrub, growing up to 3m tall. The fruit is a many-seeded blueberry, with white or pale green flesh. Varieties grown in Australia are classified into Southern Highbush, Rabbiteye and Northern Highbush which require varying levels of …
Cenchrus Purpureus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cenchrus Purpureus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Elephant grass (Cenchrus purpureus). Elephant grass (syn. Pennisetum purpureum) is a very tall growing warm season (C4) that is native to Zimbabwe but has now been introduced into most sub-tropical and tropical countries. In Queensland, elephant grass is a highly productive pasture in the humid tropics (850-2,500mm). Elephant grass is planted vegetatively as cuttings because …
Cenchrus Americanus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cenchrus Americanus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Pearl millet (Cenchrus americanus). Pearl millet (Cenchrus americanus) is a robust annual grass used for both animal feed and for human consumption. It most likely originates from Sahelian Africa where it has been domesticated for more than 4,000 years. Pearl millet is an important staple food in hot, semi-arid regions of Africa and India due …
Beta Vulgaris - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Beta Vulgaris - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Beta vulgaris. Fodder beet (mangelwurzel) is a cultivated root vegetable used to feed livestock either in situ or harvested, although it has also been used for human consumption in Europe. Considered a crop for cool-temperate climates, fodder beet sown in autumn can be grown as a winter crop in warm-temperate to subtropical climates. A very …
Citrullus Lanatus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Citrullus Lanatus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Watermelon (Citrullus lanatus). Watermelon is a flowering plant species of the Cucurbitaceae family and the name of its edible fruit. A scrambling and trailing vine-like plant, it is a highly cultivated fruit worldwide. Watermelons are thought to be native to northeastern Africa and have been domesticated since ancient times.
Cynodon Dactylon - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cynodon Dactylon - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Couch, couch grass, Bermuda grass (Cynodon dactylon). Couch grass is a creeping grass with rhizomes which is commonly grown as a lawn or turf grass and is also grown as a pasture grass, especially in south-eastern United States. There is considerable debate as to whether couch is native to northern Australia, with the general consensus …
Trifolium Alexandrinum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Trifolium Alexandrinum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Berseem clover (Trifolium alexandrinum) Berseem clover (also Egyptian clover, Alexandria clover) is an annual pasture legume originating from eastern Mediterranean regions. It is widely grown in its area of origin as a high quality forage conservation crop, and has been introduced to many other countries, such as India, Pakistan, South Africa, USA and Australia, where …
Solanum Tuberosum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Solanum Tuberosum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Potato (Solanum tuberosum). Potato is a starchy tuber of Solanum tuberosum and is a root vegetable native to the Americas. It has a long history of domestication and is now the world’s fourth most important food crop. Potatoes are an important horticulture crop in Western Australia being the second highest value vegetable crop after carrots, …
Phalaris Aquatica - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Phalaris Aquatica - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Phalaris (Phalaris aquatica). Phalaris is a winter-active, temperate perennial grass native to the Mediterranean region which was introduced into Australia in the late 1800s. It is widely grown in pastures in south-eastern Australia but is a minor pasture species in high rainfall south-western Australia. Phalaris requires annual rainfall greater than 500mm and a growing season …
Ornithopus Sativus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Ornithopus Sativus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses French serradella (Ornithopus sativus). French serradella (pink serradella) is a temperate annual pasture legume native to the Mediterranean region. It is widely sown in south-western Australia as a break crop in a cereal cropping rotation. In experimental trials in northern Western Australia (WA) the annual legumes and herbs had good feed quality but in general, …
Leucaena Leucocephala - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Leucaena Leucocephala - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Leucaena leucocephala. Leucaena is a tropical legume, originating from Central America and the Yucatan Peninsula of Mexico. It is a long-lived shrub or small tree (usually 5-10m, rarely to 20m) which is used for multiple purposes around the world including: firewood, timber, paper pulp, human food, green manure, shade, erosion control and forage.
Centrosema Pascuorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Centrosema Pascuorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Centro (Centrosema pascuorum). Centro is a warm season, annual herbaceous legume native to drier regions of South and Central America (Clements and Williams 1980). It has a twining growth habit with relatively fine stems up to 2m long. The leaves are trifoliate and the leaflets are long (50–100mm) and narrow (5–10mm wide), which can give …
Desmodium Intortum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Desmodium Intortum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Greenleaf desmodium (Desmodium intortum). Greenleaf desmodium is a perennial, tropical forage legume adapted to a range of soils (sands, sandy loams, loams to medium clay) with at least moderate fertility, pH 5.0 to 7.0, and a minimum of 800mm rainfall.
Ipomoea Batatas - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Ipomoea Batatas - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Sweet potato (Ipomoea batatas). The sweet potato (Ipomea batatas) is a member of the morning glory or Convolvulaceae family and is not related to the common potato. The plant has long trailing slender stems and is perennial but is treated as an annual in a cropping system. Sweet potato is a semi-tropical plant that grows …
Ficus Carica - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Ficus Carica - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Figs (Ficus carica). Figs are a species of small deciduous tree in the flowering plant family Moraceae which is native to the Mediterranean and western Asia. It has been cultivated since ancient times and is now widely grown throughout the world, both for its fruit and as an ornamental plant. Figs are a minor horticultural …
Urochloa Decumbens - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Urochloa Decumbens - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Signal grass (Urochloa decumbens) Signal grass is a creeping, tropical perennial grass which can form a dense sward.
Echinochloa Esculenta - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Echinochloa Esculenta - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Japanese millet (Echinochloa esculenta). Japanese millet is a tall, fast-growing annual summer crop that has been domesticated since 2000BC from Japan. It has been cultivated both for human consumption and as a fodder by tribal communities in Asia including in India, Japan, and China (Sood et al. 2015). Japanese (Shirohie) millet is a dual-purpose millet …
Digitaria Milanjiana - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Digitaria Milanjiana - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Finger grass (Digitaria milanjiana). Finger grass is a subtropical to tropical perennial grass native to a wide range in Africa from South Africa to Ethiopia (Cook et al. 2020). It is now cultivated in Africa, Asia (Malaysia; Thailand; Vietnam), Australia (Northern Territory, Queensland), the Caribbean and in the Pacific (Fiji). Finger grass is a highly …