This list is a little out of date, only 600 of the more than 1000 images currently in the GrainGenes database. The list will be updated soon.
... Much later, 9mar00: Sorry about that. Now there are 2117 of them. No point in maintaining a static list like this anyway. For the current list as of whenever you're looking, go straight to the database by clicking here.
... jan01: There's a graphical browser through thumbnails of the images at http://wheat.pw.usda.gov/ggpages/ggimages/
- Dave
Image Description
Ahn-S, 1993 Fig. 1 Ahn-S, 1993 Fig. 2 Appels 1B comparison map Appels Tt 1D map Appels 1D comparison map Appels 1R comparison map Adult English grain aphids on a wheat leaf... Wheat heads containing...English grain aphids.... Adult Russian wheat aphid... Leaf streaking and leaf rolling... A wheat head distorted by Russian wheat aphid... Greenbug adult and nymphs.... Wireworm larvae consume seed,... BYD symptoms...appear as chlorotic blotches... Stunted, chlorotic plants in a small area... Black chaff infected wheat seedlings... ...black chaff infected leaf showing necrotic regions... ...characteristic darkening of wheat glumes... Soft white wheat kernels discolored by... Ergot sclerotia among normal soft white wheat kernels. ...yellow pustules of stripe rust... Stem rust pustules erupting... Patches of powdery mildew... Pruned roots and crown rot symptoms... Wheat curl mites Adult root-knot nematode... Freeze bands on spring barley seedlings. Spring-freeze damaged winter wheat stems... Distorted heads of winter barley... Freeze ring on winter wheat... Sterile wheat heads have awns bent... Spring barley showing severe lodging... ...barley...with banded P...darker green than plants with no phosphorus... Russian wheat aphids on a barley leaf.... Light-colored streaks on leaves... Light-colored areas in spring barley.. Barley yellow dwarf symptoms initially appear... Advanced stages of black chaff... Symptoms of common root rot... Barley stripe appears as... Dark purplish ergot sclerotia... Brown spots are the spot form... White tufts of fungus mycelium... Stripe rust on spring barley.... Scab or head blight on spring barley... ...The centers of the dark brown lesions... Symptoms of take-all on wheat... Puparia on seedling spring wheat Adult on wheat Eggs on wheat Larvae on spring wheat Puparia on jointed wheat Spring wheat seedling stunted by Hessian Fly Stunted spring wheat seedlings... Four-tillered spring wheat seedling... Closeup of dwarf tiller... Stunted wheat Stunted wheat heads (left) and normal heads Thin wheat stand caused by fly Powdery mildew symptoms pBCD12 BROWS autoradiogram pBCD240 BROWS autoradiogram pBCD249 BROWS autoradiogram pBCD266 BROWS autoradiogram pBCD304 BROWS autoradiogram pBCD327 BROWS autoradiogram pBCD334 BROWS autoradiogram pBCD342 BROWS autoradiogram pBCD348 BROWS autoradiogram pBCD349 BROWS autoradiogram pBCD385 BROWS autoradiogram pBCD386 BROWS autoradiogram pBCD395 BROWS autoradiogram pBCD589 BROWS autoradiogram pBCD734 BROWS autoradiogram pBCD738 BROWS autoradiogram pBCD809 BROWS autoradiogram pBCD828 BROWS autoradiogram pBCD855 BROWS autoradiogram pBCD926 BROWS autoradiogram pBCD938 BROWS autoradiogram pBCD1072 BROWS autoradiogram pBCD1087 BROWS autoradiogram pBCD1088 BROWS autoradiogram pBCD1127 BROWS autoradiogram pBCD1262 BROWS autoradiogram pBCD1338 BROWS autoradiogram pBCD1381 BROWS autoradiogram pBCD1426 BROWS autoradiogram pBCD1434 BROWS autoradiogram pCDO213 BROWS autoradiogram pCDO244 BROWS autoradiogram pCDO328 BROWS autoradiogram pCDO344 BROWS autoradiogram pCDO365 BROWS autoradiogram pCDO370 BROWS autoradiogram pCDO373 BROWS autoradiogram pCDO385 BROWS autoradiogram pCDO395 BROWS autoradiogram pCDO405 BROWS autoradiogram pCDO407 BROWS autoradiogram pCDO455 BROWS autoradiogram pCDO456 BROWS autoradiogram pCDO457 BROWS autoradiogram pCDO464 BROWS autoradiogram pCDO470 BROWS autoradiogram pCDO475 BROWS autoradiogram pCDO480 BROWS autoradiogram pCDO484 BROWS autoradiogram pCDO497 BROWS autoradiogram pCDO506 BROWS autoradiogram pCDO507 BROWS autoradiogram pCDO520 BROWS autoradiogram pCDO524 BROWS autoradiogram pCDO542 BROWS autoradiogram pCDO545 BROWS autoradiogram pCDO590 BROWS autoradiogram pCDO658 BROWS autoradiogram pCDO665 BROWS autoradiogram pCDO669 BROWS autoradiogram pCDO678 BROWS autoradiogram pCDO680 BROWS autoradiogram pCDO686 BROWS autoradiogram pCDO718 BROWS autoradiogram pCDO795 BROWS autoradiogram pCDO1081 BROWS autoradiogram pCDO1158 BROWS autoradiogram pCDO1173 BROWS autoradiogram pCDO1174 BROWS autoradiogram pCDO1199 BROWS autoradiogram pCDO1328 BROWS autoradiogram pCDO1335 BROWS autoradiogram pCDO1380 BROWS autoradiogram pCDO1395 BROWS autoradiogram pCDO1406 BROWS autoradiogram pCDO1417 BROWS autoradiogram CS C-bands, A genome CS C-bands, B genome CS C-bands, D genome (Left) Wheat scab is characterized by...(Right) Salmon pink fungus growth... Uredia of stem rust...on wheat... Urediospores of P. graminis... Urediospores of P. recondita... Urediospores of P. hordei... Urediospores of P. striiformis... Urediospores of P. coronata... Heavy infection of stem rust on triticale.... Uredia of P. graminis.... Urediospores of P. graminis... Teliospores of P. Graminis... Aecia developing on an alternate host... Uredia of P. recondita on a wheat leaf. Urediospores of P. recondita... Teliospores of P. recondita. Uredia of P. hordei... Urediospores of P. hordei... Uredia of P. striiformis on a wheat leaf.... Uredia of P. striiformis on wheat florets... Urediospores of P. striiformis (10x40). Uredia of P. coronata on an oat leaf. Urediospores of P. coronata (10x40). Teliospores of P. coronata... Black pycnidia of D. filum... Whitish to light grey cirrhi... Conidia of D. filum (10x40). Early leaf-spotting symptoms... Conidia of H. sativum (10x40). Conidia of H. tritici-repentis (10x40). Conidia of H. avenae (10x40). Conidia and dark conidiophores... Conidia of H. gramineum (10x40). Helminthosporium giganteum... Conidia of H. giganteum-the long, cylindrical,... Conidia of H. spiciferum (10x40). Typical leaf-spotting symptoms... Barley seedlings infected by H. savitum.... Sporulation on H. sativum... Spot blotch lesions on a durum wheat leaf,... Typical spot blotch lesions... Conidiophores of H. sativum... Conidia of H. sativum... Typical yellow leaf blotch... More advanced leaf spotting... Conidia of H. tritici-repentis... Perithecia of Pyrenophora triciti-repentis... A closer view of a perithecium... Asci containing ascospores of P. tritici-repentis.... Leaf blotch of oats, caused by... Sporulation of H. avenae... Conidia of H. avenae.... Early symtoms of net blotch... Advanced symptoms of net blotch... Conidia and dark conidiophores... Early symptoms of barley stripe,... Advanced symptoms of barley stripe.... Sporulation of H. gramineum...barley leaf... Conidia of H. gramineum (10x40). Distinctive zonate eyespot lesion... Advanced symptoms of zonate eyespot... Sporulation of H. giganteum on wheat.... The nearly colorless conidia and dark conidiophores of... Typical symptoms of cereal leaf blotch... Sporulation of H. spiciferum... Conidia of H. spiciferum (10x40). Conidia of S. tritici (10x40). Speckled leaf blotch on wheat... Conidia of S. nodorum (10x40). Conidia of S. avenae (10x40). Conidia of S. passerini (10x40). Conidia of Ascochyta graminicola (10x40). Conidia of Phaeoseptoria vermiformis (10x40). Typical symptoms of speckled leaf blotch... Advanced symptoms of speckled leaf blotch.. It is the dark pycnidia of S. tritici that gives... Under moist conditions, white to buff-colored cirrhi... Conidia of S. tritici... Typical leaf symptoms of glume blotch... Symptoms of glume blotch... Compare the typical symptoms of black chaff...with...glume blotch... Pinkish cirrhi of S. nodorum... Conidia of S. nodorum (10x40). Perithecia of Phaeosphaeria nodorum... Ascospores of P. nodorum (10x40). Septoria black stem on oats... Early symptoms of septoria leaf blotch... Advanced symptoms of septoria... A single pycnidium releasing conidia of S. avenae (10 x 10). Conidia of S. avenae (10x40). Asci and ascospores of Phaeosphaeria avenaria,... Typical leaf blotch symptoms on barley,... A close look at S. passerinii... Typical conidia of S. passerinii (10x40). Somewhat different conidia of S. passerinii... Symptoms of ascochyta leaf spot... Variants of Ascochyta graminicola... Large-spored variants of Ascochyta graminicola... Phaeoseptoria leaf blotch symptoms... Relatively large, black pycnidia of P. vermiformis.... Conidia of P. vermiformis (10x40). A barley spike displaying the black spore masses... Teliospores typical of Ustilago species (10x40). Teliospores typical of Tilletia species (10x40). Teliospores of Tilletia indica (10x40). Teliospores typical of Urocystis species (10x40). A barley spike with loose smut,... What remains of a barley spike... Teliospores of U. nuda (10x40). Teliospores of U. nuda germinating... Oat spikes with two kinds of smut... A barley spike with black loose smut... A barley spike with covered smut,... Oat panicles with covered smut,... Teliospores of U. hordei... Dwarf bunt, caused by Tilletia controversa,... Wheat spikes with bunt... Two wheat spikes with common bunt... A comparison: normal wheat kernels;... Teliospores of T. caries (10x40). Teliospores of T. foetida (10x40). Wheat spike with karnal bunt,... Wheat kernels with karnal bunt.... Distinctive black teliospores of Tilletia indica (10 x 40). Wheat leaves with flag smut,... Wheat plants affected by flag smut... Teliospores of Urocystis agropyri.... Fusarium head scab is easily recognized... Conidia of F. graminearum (10x40). Conidia of F. culmorum (10x40). Conidia of F. avenaceum (10x40). Conidia of F. equiseti (10x40). Conidia of F. nivale (10x40). Fruiting structures (conidial masses and aerial mycelium)... Conidia of F. graminearium (10x40). Perithecia of Gibberella zeae... Ascospores of Gibberella zeae (10x40). Durum wheat spikes with head scab... Conidial development of head scab... Shrivelled, nonviable triticale seed,... Conidia of F. culmorum (10x40). Rye spikes infected by F. avenaceum. Conidial development of F. avenaceum... Conidia of F. avenaceum (10x40). Conidial development of F. equiseti... A closer view of a fruiting structure of F. equiseti... Conidia of F. equiseti (10x40). Early symptoms of fusarium leaf blotch... The lesions of fusarium leaf blotch... Pinkish-colored sporodochia of F. nivali... A closer look at a single sporodocium of F. nivali.... Conidia of F. nivale (10x40). Perithecia of Calonectria nivalis... A closer view of the perithecia of C. nivalis.... Asci containing ascospores of C. nivalis,... Winter wheat suffering from snow mold... Foot rot symptoms of take-all... Sporodochia of Cephalosporium gramineum. Dark mycelial strands and perithecial initials... Eyespot lesion typical of...Psuedocercosporella herpotrichoides... Spherical sclerotia and white mycelia... Fruiting structures typical of...Colletotrichum graminicola. Symptoms typical of...Sclerophthora macrospora. Leaf-striping symptoms of cephalosporium stripe... Sporodochia of C. gramineum... Conidia of C. gramineum (10x40). A patch of spring wheat... Wheat spikes and grain... Lower culms and roots... Dark mycelial strands and perithecial initials of O. graminis... A mature perithecium of O. graminis... Ascospores of O. graminis (10x40). Advanced symptoms of eyespot... Eyespot lesions occur at or near the soil line... A typical eyespot lesion... A barley plant showing symptoms of sclerotium wilt... Young sclerotia and white mycelia... A closer view of young sclerotia... Sclerotia of S. rolfsii turn brown... Sclerotia of S. rolfsii are sometimes... Black fruiting structures (acervuli)... A closer view of the acervuli... A closer view of the long, dark spines... Downy mildew developing on spring wheat... Wheat plants with downy mildew... Triticale infected by Sclerophthora macrospora... Oospores of Sclerophthora macrospora... Symptoms of ergot: honeydew and sclerotia... Hyphae of Erysiphe graminis on rye. Older lesions produced by Rhynchosporium secalis... A lesion typical of...Cercospora apii A wheat head with the sclerotia... Powdery mildew on wheat,... The superficial mycelium and fruiting structures... Conidia of E. graminis (10x40). Cleistothecia of E. graminis... Immature asci are released... Early leaf symptoms of scald... An early scald lesion... Scald lesions merge and... Conidia of Rhyncosporium secalis (10x40). A dark elongated cercospora... Clusters of dark conidiophores... A closer view of a fruiting... A conidium of Cercospora apii. Honeydew being exuded from...a barley spike... Ergot bodies (sclerotia) of Claviceps purpurea.... Stromata developing from an ergot sclerotium... Typical sooty mold on wheat spikes... Leaf blight on wheat,... Conidiophores of Alternaria species (50x). Conidia of (wild) saprophytic Alternaria species (10x40). Larger conidia of Alternaria triticina (10x40)... Lesion on a wheat leaf... A dense, sporulating colony... Conidia of Stemphylium botryosum (10x40). Fruiting structures of Cladosporium species (50x).... A cluster of conidiophores of Cladosporium species... Two conidiophores of Cladosporium species... Conidia of Cladosporium species (10x40).... A colony of perithecia of Pleospora... Perithecia of Pleospora species... Two perithecia and the asci... Ascospores of Pleospora species... Stems, spike, and grain of wheat... Dark, thick-walled conidia of Torula... Phoma species developing on leaves... Wheat spikelets covered with the pycnidia... The pycnidia of Phoma species... The pycnidia of Phoma species often develop... Two pycnidia of Phoma species... Unicellular conidia of Phoma glomerata (10x40). Sporodochia of Epicoccum nigrum... A closer view of a sporodochium... Conidia of Epicoccum nigrum (10x40). Yellowish red lesion on an oat leaf,... Dense clusters of the fruiting structures... Greyish conidia of C. graminis... Bacterial stipe on barley leaves... Droplets of bacterial exudate... Xanthomonas translucens on a barley leaf.... Cloudy, yellowish bacterial exudate,... Symptoms of black chaff... Bacterial stripe blight lesions... Symptoms typical of basal glume rot,... The staining caused by P. atrofaciens... Typical early lesion of halo blight... As the lesions of halo blight of oats age,... The lesions caused by P. coronafaciens... Distorted flag leaves and...sticky exudate... A wheat spike, normal seed and the seed galls... A closer view of a seed gall... Lesions typical of those produced on wheat... Streaking, general chlorosis and yellowing... A wheat leaf showing symptoms... Severe dwarfing, sterility and...discoloration... Several aphid species serve as common vectors... Greenbugs (Schizaphis graminis) act as vectors... Aphid vectors of Free state streak... Distorted, chlorotic barley spikes... A winged adult Russian grain aphid... Young Russian grain aphids (D. noxia). Typical leaf symptoms of wheat striate... Later symptoms of wheat striate mosaic... The leafhopper, Endria inimica,... A leafhopper nymph of the genus Cicadulina (50x). Leaf enations and distortions... The leafhopper, Macrosteles fascifrons,... General chlorosis and yellowing... Barley spikes affected by aster yellows... Leaves and spike of wheat with African cereal streak.... Dwarfing that is characteristic of African cereal streak... A closer view of the symptoms...of African cereal streak. A comparison of the effects of European wheat striate mosaic... Leaf symptoms produced on wheat by European wheat striate mosaic... The planthopper, Javesella pellucida,... Leaf symptoms of three different mite-transmitted... Wheat curl mites (Aceria tulipae)... Leaf symptoms of wheat streak mosaic... Leaf symptoms of agropyron mosaic... Leaf symptoms of rye grass mosaic... Leaf symptoms of wheat spot mosaic... The soil inhabiting fungus, Polymyxa graminis,... Wheat soil-borne mosaic... Fleshy, distorted and sterile wheat spikes... Leaf symptoms of wheat spindle streak mosaic,... Leaf symptoms typical of those... Stunting and excessive tillering... Nematodes are small transparent worms... Distorted wheat nodes infested with nematodes. A comparison of seed galls... Seed galls are filled with dormant nematodes... Wheat roots infested with oat cyst nematodes.... Symptoms of a root knot nematode... Greenbugs on a triticale leaf.... Damage caused by Hessian fly larvae. Pupae of Hessian flies in wheat... Sawfly larvae in a wheat stem... Grasshopper feeding on a durum wheat spike... Corn leaf aphids on a barley leaf... Thrips on barley (photo: S. Fuentes). Cereal leaf beetle larvae... Cereal leaf beetle larvae spray their backs... Typical damage (feeding pattern) of cereal leaf beetle... Clay tunnels built by termites... Grain weevils taken from infested triticale seed. A sample of damaged triticale grain,... Damage typical of that caused by birds.... Durum wheat nursery plots... An example of chromosomal instability... Physiological leaf spots on barley leaves. A mild form of hybrid necrosis... Brown necrosis on wheat spikelets... Symptoms of black chaff,... Symptoms of glume blotch,... Brittle rachis, resulting in shattering... Preharvest sprouting in triticale spikes. Blast in oats (right)... Symptoms of nitrogen deficiency... Test plots in phosphorous deficient soil. Symptoms of manganese deficiency... Symptoms of copper deficiency in wheat.... Acid soils can drastically retard... Poor drainage can result in a build-up... Differing reactions of wheat... A wheat test plot showing susceptability... Wheat spikes stressed by severe drought,... Leaf necrosis caused by drought,... Early symptoms of water logging... Grey blotch on wheat,... Spikelet deformation in wheat... Yellowing and leaf necrosis in wheat,... Frost damage on wheat leaves... Sterility of the upper portions of wheat spikes,... Damaged spikes, broken stems and split leaves... Strawbreaker footrot symptoms Triticum tripsacoides (Jaub. & Spach.) Bowden spike x0.85,... Triticum tripsacoides (Jaub. & Spach.) Bowden spikelet x10 Triticum tripsacoides (Jaub. & Spach.) Bowden glume x10 Triticum speltoides (Tausch) Gren. ex Richter var. aucheri spike x2 Triticum speltoides (Tausch) Gren. ex Richter var. aucheri terminal spikelet x8 Triticum speltoides (Tausch) Gren. ex Richter var. aucheri lower spikelet x8,... Triticum speltoides (Tausch) Gren. ex Richter var. ligustica spike x2 Triticum speltoides (Tausch) Gren. ex Richter var. ligustica terminal spikelet x9 Triticum speltoides (Tausch) Gren. ex Richter var. ligustica lower spikelet x9 Triticum bicorne Forsk. spike x2 Triticum bicorne Forsk. spikelet x6 Triticum bicorne Forsk. glume x10 Triticum bicorne Forsk. lemma x6 Triticum sharonense L. spike x2 Triticum sharonense L. spikelet x9,... Triticum sharonense L. glume x9,... Triticum sharonense L. lemma x9 Triticum longissimum (Schweinf. & Muschli in Muschli) Bowden spike x1 Triticum longissimum (Schweinf. & Muschli in Muschli) Bowden lemma of terminal spikelet x12,... Triticum longissimum (Schweinf. & Muschli in Muschli) Bowden spikelet x9 Triticum longissimum (Schweinf. & Muschli in Muschli) Bowden glume of lower spikelet x9,... Triticum searsii (Feldman et Kislev) Feldman et Kislev spike x1,... Triticum searsii (Feldman et Kislev) Feldman et Kislev central portion of the large awn x6,... Triticum searsii (Feldman et Kislev) Feldman et Kislev spikelet and associated rachis segment x8 Triticum searsii (Feldman et Kislev) Feldman et Kislev glume of spikelet...x12,... Triticum searsii (Feldman et Kislev) Feldman et Kislev entire lemma with small awn x6 Triticum dichasians (Zhuk.) Bowden spike x3 Triticum dichasians (Zhuk.) Bowden spikelet x6 Triticum dichasians (Zhuk.) Bowden glume of lower spikelet x6 Triticum dichasians (Zhuk.) Bowden glume of terminal spikelet x6 Triticum comosum (Sibth. & Sm.) spike x2 Triticum comosum (Sibth. & Sm.) glume of terminal spikelet x6 Triticum comosum (Sibth. & Sm.) lower spikelet x6,... Triticum comosum (Sibth. & Sm.) glume of lower spikelet x6 Triticum uniaristatum (Vis.) Richter spike x3 Triticum uniaristatum (Vis.) Richter spikelet x7,... Triticum uniaristatum (Vis.) Richter glume of terminal spikelet x7 Triticum monococcum L. spike x3 Triticum monococcum L. spikelet x8,... Triticum monococcum L. glume x12 Triticum timopheevii (Zhuk.) Zhuk. spike x3 Triticum timopheevii (Zhuk.) Zhuk. spikelet x6 Triticum timopheevii (Zhuk.) Zhuk. glume x6 Triticum timopheevii (Zhuk.) Zhuk. Lamina and ligules x6,... Triticum turgidum L. spike x3 Triticum turgidum L. spikelet x7,... Triticum turgidum L. glume x10 Triticum umbellulatum (Zhuk.) Bowden lowest spikelet x6,... Triticum umbellulatum (Zhuk.) Bowden spike x3 Triticum umbellulatum (Zhuk.) Bowden uppermost two spikelets x6... Triticum umbellulatum (Zhuk.) Bowden glume x6 Triticum ovatum (L.) Raspail spike x3,... Triticum ovatum (L.) Raspail spike x3 Triticum ovatum (L.) Raspail lowest fertile spikelet...x6,... Triticum ovatum (L.) Raspail glume of lowest spikelet x6 Triticum ovatum (L.) Raspail lemma from lower spikelet x9,... Triticum neglecta (Bertol.) Greuter spike x3 Triticum neglecta (Bertol.) Greuter spikelet x6 Triticum neglecta (Bertol.) Greuter glume of lower spikelet x6 Triticum neglecta (Bertol.) Greuter lemma of lower spikelet x6 Triticum recta (Zhuk.) Bowden spike x3 Triticum recta (Zhuk.) Bowden spikelet x6,... Triticum recta (Zhuk.) Bowden glume of lower spikelet x6 Triticum macrochaetum (Schuttl. & Huet. ex Duval-Jouve) Richter glume of lower spikelet x6 Triticum macrochaetum (Schuttl. & Huet. ex Duval-Jouve) Richter spike x1 Triticum macrochaetum (Schuttl. & Huet. ex Duval-Jouve) Richter spikelet x6 Triticum macrochaetum (Schuttl. & Huet. ex Duval-Jouve) Richter glume of upper spikelet x7 Triticum columnare (Zhuk.) Morris & Sears, comb. nov. spike x2 Triticum columnare (Zhuk.) Morris & Sears, comb. nov. glume of lowest spikelet x5,... Triticum columnare (Zhuk.) Morris & Sears, comb. nov. glume from terminal spikelet x6 Triticum columnare (Zhuk.) Morris & Sears, comb. nov. lemma from lowest spikelet x7,... Triticum triunciale (L.) Raspail spike x3 Triticum triunciale (L.) Raspail spikelet x5 Triticum triunciale (L.) Raspail glume from lowest spikelet x5,... Triticum triunciale (L.) Raspail glume from terminal spikelet x5,... Triticum kotschyi (Boiss.) Bowden spike x3 Triticum kotschyi (Boiss.) Bowden spikelet x6 Triticum kotschyi (Boiss.) Bowden glume x6 Triticum kotschyi (Boiss.) Bowden glume x6 Triticum peregrinum Hackel spike x3 Triticum peregrinum Hackel spike x3 of ssp. cylindrostachys Triticum peregrinum Hackel spikelet x7 Triticum peregrinum Hackel glume x7 Triticum tauschii (Coss.) Schmal. spike of var. eusquarrosa x2 Triticum tauschii (Coss.) Schmal. spike of var. strangulata x3 Triticum tauschii (Coss.) Schmal. spikelet of var. strangulata x9 Triticum tauschii (Coss.) Schmal. spikelet of var. eusquarrosa x9 Triticum cylindricum Ces. spike x1 Triticum cylindricum Ces. lower spikelet x6 Triticum cylindricum Ces. glume of lower spikelet x6 Triticum cylindricum Ces. glume of terminal spikelet x6 Triticum cylindricum Ces. lemma of terminal spikelet x6 Triticum ventricosum Ces. spike x3 Triticum ventricosum Ces. spikelet x8 Triticum ventricosum Ces. glume of lower spikelet x10 Triticum ventricosum Ces. glume of terminal spikelet x10 Triticum crassum (Boiss.) Aitch. & Hensl. spike x2 Triticum crassum (Boiss.) Aitch. & Hensl. spikelet x6 Triticum crassum (Boiss.) Aitch. & Hensl. glume x6 Triticum crassum (Boiss.) Aitch. & Hensl. lemma x6,... Triticum juvenale Thell. spike of awnless form x1 Triticum juvenale Thell. spike x1 Triticum juvenale Thell. spikelet x6,... Triticum juvenale Thell. glume x6 Triticum juvenale Thell. lemma x4 Triticum syriacum Bowden spike x2 Triticum syriacum Bowden terminal spikelet x9 Triticum syriacum Bowden lemma of terminal spikelet x12 Triticum syriacum Bowden spikelet x10 Table 1. The occurence of...Triticum...Central Asiatic and East Mediterranean countries. Table 1. The occurance of...Triticum...Other Mediterranean and Southern European countries. Table 3. Artificial hybrid combinations... Triticum bicorne Forsk. (2n=14), root-tip cell,... Triticum aestivum L. (2n=42), root-tip cell,... Triticum umbellulatum (Zhuk.) Bowden (2n=14) first meiotic metaphase... First meiotic metaphase...of Triticum aestivum L.,... ...a hybrid between Triticum cylindricum Ces....and Triticum tauschii (Coss.) Schmal.... First meiotic metaphase in a tri-generic hybrid involving... A diagrammatic representation...of the U-genome wild wheat species. A diagrammatic representation...of the D-genome wild wheat species. A diagrammatic representation...of the A-genome wild and cultivated... Stages of development of Hessian fly... Snow mold on cereals... Hyphae of snow mold... Leaves of wheat attacked by snowmold. Barley attacked by Typhula rot. Brown fungal sclerotia at the base. Attack by eyespot... Typical signs of eyespot disease... Take-all in wheat... Severe disease [Take-All]... Wheat infected by Helminthosporium sativum... Barley attacked by Helminthosporium sativum... Eyespot symptoms caused by Rhizoctonia spp.... Fusarium attack on wheat... The stems also shows patches... Fusarium fungi can also attack the heads... Head scab of wheat... In severe cases of [barley] leaf stripe,... Leaf symptoms of barley stripe. Barley leaves attacked by net blotch. Net blotch of spring barley. Injury to barley leaves [by scald]. Sporangia of stem rust on wheat stem. Uredosporangia of brown leaf rust... Uredosporangia of leaf rust on leaves... Pockets of stripe rust in wheat crop. Uredosporangia of stripe rust...barley. Uredosporangia of stripe rust...wheat...magnified. Teliosporangia of stripe rust... Uredosporangia of leaf rust...barley leaf Crown rust of oats. Powdery mildew attack on barley. Powdery mildew on barley... Powdery mildew on wheat... Septoria leaf spot [blotch] on wheat. Pseudothecia of Pyrenophora tritici-repentis... Early leaf symptoms of tan spot... Cephalosporium stripe on wheat. Leaf symptoms on oats... Powdery mildew attack of wheat spikelets. Wheat coleoptiles attacked by Septoria nodorum. Infection of wheat stems...Septoria nodorum. Glume blotch in heads of wheat. Head of barley destroyed... Left: Heads...infected...Right: Healthy head. Left: Bunted heads...Right: Healthy head. Oat panicle attacked by loose smut. Dwarf bunt...: healthy heads on left. Stripe smut of rye... Sooty mold fungi... Wheat streak mosaic of wheat... Later symptoms of wheat streak mosaic... Barley yellow dwarf of wheat. Colony of twospotted spider mites. Colony of wheat curl mites. Brown wheat mite. Mormon cricket (top) and twostriped grasshopper (bottom). Adult western flower thrips. Rose grass aphid adults. Oat bird-cherry aphid colony. Greenbug colony. English grain aphid colony on wheat head. Corn leaf aphid colony. Russian wheat aphid. False chinch bug. Adult stinkbug. Sugarbeet wireworm larvae. False wireworm larva. Western corn rootworm immature (left) and adult. Nuttall blister beetle. Adult spotted blister beetle. Ashgray blister beetle adult. Punctured blister beetle adult. Immature form of variegated cutworm. Immature redbacked cutworm. Spotted cutworm immature larva. Immature form of army cutworm. Seedcorn maggot larva and damage. Leather jacket larva on potato. Hessian fly larvae and damage. Wheat stem maggot larvae (left) and typical damage. Wheat sawfly larva feeding. pBCD1434 Rye chromosomes Sprout scoring scale Stem rust uredia Stripe rust infection types T. monococcum glume T. monococcum spike T. monococcum spikelet Sooty mold spikes Transgenic wheat BCD1127/CSpring/EcoRV Wheat chromosomes