File:Avena sativa habit6 NC - Flickr - Macleay Grass Man.jpg
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DescriptionAvena sativa habit6 NC - Flickr - Macleay Grass Man.jpg | Introduced, cool season, annual, semi-prostrate to erect, tufted grass to 1.5m tall. Flowerheads are open panicles to 40cm long. Spikelets are 1.7–2.5 cm long (without the awns), each with 1–7 florets. Glumes are 1.5–3 cm long. Lemmas are 1.2–2.5 cm long, hairless, 2-toothed and the lowest lemma usually awned, others usually unawned; awn, when present, usually straight, 15–45 mm long, inserted at about middle of lemma to below sinus. Flowering is in spring. A native of Europe, it is sown as a crop and/or forage on more fertile soils. It has slight aluminium tolerance; although this varies between varieties (Saia more tolerant). Has potential for high production of quality feed in the winter feed gap if fertilized. Sow mid-February to early April for all varieties. Can be direct drilled into kikuyu, but not till kikuyu has gone dormant. Don’t graze until plants are well anchored. Don’t graze below 5 cm for prostrate varieties or 10 cm for erect varieties for best recovery. Doesn’t recover from grazing once it has started to run to head. Can be susceptible to rust, and barley yellow dwarf virus. Produces feed earlier than ryegrass, but not as long into spring. |
Date | |
Source | Avena sativa habit6 NC |
Author | Harry Rose from Dungog, Australia |
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This image was originally posted to Flickr by Macleay Grass Man at https://flickr.com/photos/73840284@N04/23038701374. It was reviewed on 5 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
5 November 2016
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:15, 5 November 2016 | 4,000 × 3,000 (7.14 MB) | Josve05a (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Introduced, cool season, annual, semi-prostrate to erect, tufted grass to 1.5m tall. Flowerheads are open panicles to 40cm long. Spikelets are 1.7–2.5 cm long (without the awns), each with 1–7 flore... |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/800 sec (0.00125) |
F-number | f/4 |
ISO speed rating | 80 |
Date and time of data generation | 09:42, 7 September 2015 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Picasa |
File change date and time | 15:03, 11 December 2015 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 09:42, 7 September 2015 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 9.65625 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Unique image ID | 192b333d59236bdfcb82224df767fb74 |
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IIM version | 4 |