Agriculture Commons^™

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 …

Medicago Littoralis - 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 Strand medic (Medicago littoralis). Strand medic is a temperate annual pasture legume native to the calcareous sandy soils along the coast of the Mediterranean. It is adapted to well drained soils with a slightly acid (pHCa >5.8), neutral and alkaline conditions (AAR 275-500mm). Used as a self-regenerating autumn-to-spring growing annual pasture. A minor pasture species …

Urochloa Mosambicensis - 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 Sabi grass (Urochloa mosambicensis). Sabi grass is a creeping, tropical, perennial grass of variable size and growth habit usually with short stolons or tufted and sometimes rooting and branching from the lower nodes. Sabi grass is native to central and southern Africa (i.e. Kenya, Tanzania, Uganda, Malawi, Mozambique, Zambia, Zimbabwe, Botswana, South Africa and Swaziland). …

Allium Cepa - 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 Allium cepa. Onions are a root vegetable which are widely cultivated around the world. A. cepa is only known from cultivation, however onions are part of the Allium genus which contains over 300 species.

Vigna Radiata Subsp. Radiata - 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 Mung bean (Vigna radiata subsp. radiata) There are two subspecies of Mung bean; V. radiata subsp. radiata (var. setulose) is the exotic Mung bean native to the Indian subcontinent and Vigna radiata subsp. sublobata which is native to northern Australia and the Kimberley Region in Western Australia including IBRA Regions: Central Kimberley, Dampierland, Northern Kimberley, …

Stylosanthes Guianensis Var. Guianensis - 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 Common stylo (Stylosanthes guianensis var. guianensis). Common stylo is a tropical, erect to semi-erect, short-lived perennial legume adapted to acid infertile soils.

Trifolium Subterraneum - 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 Subterranean clover (Trifolium subterraneum). Subterranean clover is a grazing tolerant annual pasture legume from the Mediterranean Basin which is sown over 8 million hectares (ha) in Western Australia (WA) and 29 million ha across southern Australia. It is used in permanent pastures and in rotation with crops. A range of cultivars are available for areas …

Vicia Faba - 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 Faba beans (Vicia faba). Faba beans are a winter growing pulse (legume) crop which are adapted to well-drained medium- to fine-textured soils with a neutral to alkaline pH. In Western Australia (WA), faba beans is a niche crop and production is currently around 6,000 tonnes. Vicia faba minor is grown under broadscale farming conditions in …

Megathyrsus Maximus - 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 Panic grass (Megathyrsus maximus). Panic grass (Megathyrsus maximus) is a warm season (C4), perennial grass which is widely used in South America, Japan, India, and sub-tropical Queensland and more recently in the northern agricultural region of Western Australia. It is a productive forage grass for pasture, green-forage, hay and silage. The panic grasses are shade …

Bothriochloa Pertusa - 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 Bothriochloa pertusa. Indian bluegrass is a stoloniferous, mat-forming, tropical (C4) perennial grass.

Remote Sensing For Quantifying C3 And C4 Grass Ratios In Pastures, Jordyn Alyssa Bush

Theses and Dissertations--Plant and Soil Sciences

The following studies investigate the accuracy and practicality of exploiting the color dichotomy present between C₃ and C₄ grass species to estimate their respective proportions from drone or camera captured imagery. Understanding the proportions of C₃ and C₄ grasses in pastures is vital to sound decision making for livestock production. The ability to monitor these proportions remotely will also allow for large scale monitoring as well as detection of changes in botanical composition over time and in response to weather events, management, or climate change. A free green canopy cover (GCC) analyzing software, Canopeo, was used …

A Non-Destructive Approach For Measuring Rice Panicle-Level Photosynthetic Responses Using 3d-Image Reconstruction, Jaspinder Singh Dharni, Balpreet Kaur Dhatt, Puneet Paul, Tian Gao, Tala Awada, Paul Staswick, Jason Hupp, Hongfeng Yu, Harkamal Walia

Department of Agronomy and Horticulture: Faculty Publications

Our understanding of the physiological response of rice inflorescence (panicle) to environmental stresses is limited by the challenge of accurately determining panicle photosynthetic parameters and their impact on grain yield. This is primarily due to lack of a suitable gas exchange methodology for panicles, as well as non-destructive methods to accurately determine panicle surface area. To address these challenges, we have developed a custom panicle gas exchange cylinder compatible with the LiCor 6800 Infra-red Gas Analyzer. Accurate surface area measurements were determined with a 3D panicle imaging platform to normalize the panicle-level photosynthetic measurements. We observed differential responses in both …

Evaluation Of Uav-Derived Multimodal Remote Sensing Data For Biomass Prediction And Drought Tolerance Assessment In Bioenergy Sorghum, Jiating Li, Daniel P. Schachtman, Cody F. Creech, Lin Wang, Yufeng Ge, Yeyin Shi

Department of Agronomy and Horticulture: Faculty Publications

Screening for drought tolerance is critical to ensure high biomass production of bioenergy sorghum in arid or semi-arid environments. The bottleneck in drought tolerance selection is the challenge of accurately predicting biomass for a large number of genotypes. Although biomass prediction by low-altitude remote sensing has been widely investigated on various crops, the performance of the predictions are not consistent, especially when applied in a breeding context with hundreds of genotypes. In some cases, biomass prediction of a large group of genotypes benefited from multimodal remote sensing data; while in other cases, the benefits were not obvious. In this study, …

Field Validation Of A Farmer Supplied Data Approach To Close Soybean Yield Gaps In The Us North Central Region, José F. Andrade, Spyridon Mourtzinis, Juan I. Rattalino Edreira, Shawn P. Conley, John Gaska, Herman J. Kandel, Laura E. Lindsey, Seth Naeve, Scott Nelson, Maninder P. Singhi, Laura J. Thompson, James E. Specht, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

CONTEXT: Producer-reported data can be used to identify suites of management practices that lead to higher yield and profit. However, a rigorous validation of the approach in relation to its potential impact on farmer yield and profit is lacking.

OBJECTIVE: This study aimed to validate a producer-data approach on its capability to guide on-farm evaluation of management practices with greatest potential for increasing producer yield and profit. We show proof of concept using soybean in the North Central US region as a case study.

METHODS: We used a combination of regression tree analysis and a spatial framework to determine practices …

Predicting Munsell Color For Turfgrass Leaves, William L. Berndt, Roch E. Gaussoin

Department of Agronomy and Horticulture: Faculty Publications

Linking turfgrass color to hue, value, chroma (H V/C) in the Munsell Plant Tissue Color Book is a visual comparison process for specifying and communicating plant color. If subjectivity of visual comparison can be mitigated, then accuracy of color matching may be improved. Research was conducted to develop an algorithm predicting H V/C from CIE-xyY color (xyY) in digital images of leaves of four turfgrasses. First, value-chroma (V/C) arrays for Munsell hue groups 5Y, 2.5GY, 5GY, 7.5GY, 10GY, and 2.5G were converted to xyY. Next, chromaticity (xy) plots from each array were fitted with …