turcicum leaf blight of maize ppt

The disease appeared in severe form in most of the maize growing areas of Kamataka. 7 [302 0 R 303 0 R 304 0 R 305 0 R 306 0 R 307 0 R 308 0 R 309 0 R 310 0 R 311 0 R on Susceptible and Resistant Corn” (). Management. /Type /Group endobj KwaZulu-Natal and Mpumalanga, it is common and causes serious yield /Font << /Contents 61 0 R �^#�O1X��|�b[}[��� ����u�+oc[˹�v����)��V^v�����h��sFJyk��t��K� �-�� ��)&mG��[��Z� JP Leonard and E.G. The disease has appeared annually in Indiana, and has increased in prevalence since the mid- to late 2000s. Northern corn leaf blight (NCLB) is most devastating maize foliar disease in Himalayan region of the world, caused by fungus Exerohillum turcicum. Penetration of maize leaves by Helminthosporium turcicum. /GS25 49 0 R /Subtype /Image /ExtGState << >> The most important diseases of maize in Nepal are leaf blights (turcicum and maydis leaf blight), ear rot, stalk rot, rust, downy mildews, etc. Until the middle oft the 90s leaf blight of maize was considered to be a problem of warm humid maize growing areas as in our neighbouring countries in the south and overseas. 11 0 obj >> >> CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Globally maize (Zea mays L.) is the first and most important cereal crop gown under diversity of environments unmatched by any other crop, as expansion of maize to new areas and environment still continues due to its range of plasticity. Northern corn leaf spot. K.J. /Contents 63 0 R /P29 52 0 R Caused by the hemibiotrophic fungal pathogen Setosphaeria turcica (anamorph Exserohilum turcicum), NLB is … ;79(3) NORTHERN LEAF BLIGHT HELMINTHOSPORIUM TURCICUM ON MAIZE IN LATVIA. /Annots [65 0 R 66 0 R] 135 0 R 136 0 R 137 0 R 138 0 R 139 0 R 140 0 R 141 0 R 142 0 R 143 0 R 144 0 R 1 111 0 R 2 [112 0 R 113 0 R 114 0 R 115 0 R 116 0 R 117 0 R 118 0 R 119 0 R 120 0 R 121 0 R /Title ( ) Box 29053-00625, Kangemi, Nairobi, Kenya. Maize is native of Mexico and Central America by origin, (Galaniant, 1976, Pursglove, 1972 and Dowswell et al., 1996). Turcicum leaf blight on maize. /ModDate (D:20170307170319) /Font << /Author (User) m�k���N�� 82 0 R 83 0 R 84 0 R 85 0 R 86 0 R 87 0 R 88 0 R 89 0 R 90 0 R 91 0 R << Subsequently108 triple crosses from the 54 F 1 s were evaluated in 2-row plots for both diseases and agronomic performance in Spores are produced on this crop residue when environmental conditions become favourable in the spring and early summer. The crosses were grown in 1-row plots with 2 replications. 265 0 R] endobj /S /Transparency 8 339 0 R] /rgid (PB:314857567_AS:841859274391552@1577726300791) /Tabs /S Turcicum leaf blight (or northern leaf blight) occurs worldwide and particularly in areas where high humidity and moderate temperatures prevail during the growing season. Exserohilum turcicum). 10 0 obj The spots coalesce giving blighted appearance. /Parent 2 0 R 80). /Length 4601 Diseases of Maize << /ParentTree 13 0 R 301 0 R 302 0 R 303 0 R 304 0 R 305 0 R 306 0 R 307 0 R 308 0 R 309 0 R 310 0 R It is currently probably the most widespread leaf disease on maize in South Africa and although especially severe in the eastern parts of the country e.g. Turcicum leaf blight of maize in Uttarakhand, attaining epidemic proportions which resulted in 83 per cent yield reduction. Crazy top - Sclerophthora macrospora /StructParents 3 The diseases chosen were those endemic to the region, and turcicum leaf blight … Leaf blight - Helminthosporium maydis (Syn: H. turcicum) Symptoms The fungus affects the crop at young stage. /Kids [5 0 R 6 0 R 7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R] If you continue browsing the site, you agree to the use of cookies on this website. /Type /Group >> /F5 44 0 R << >> Symptoms With the growing age of plant, leaves in the whorl become chlorotic and … /F3 42 0 R Eventually the growing lesions can lead to complete burning of the foliage. /StructTreeRoot 3 0 R << 4 [175 0 R 176 0 R 177 0 R 178 0 R 179 0 R 180 0 R 181 0 R 182 0 R 183 0 R 184 0 R /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] >> /Parent 2 0 R Kiarie Njoroge1* and Lilian Gichuru2 [1]Faculty of Agriculture, Kabete Field Station, P. O. �c(6�5)f;��j�mki�ұE}��M?Kx��[k��}f�J�'� ��1hV޳�.6��6���"�X�:���7Q��D��9��\���cDTik��3��-�#�Q��7�o�[�G�!�Ў[G�%�$py��J;��n�}��j�-�#�Q���~��!�U�Џ. /Font << /XObject << /Group << >> >> Northern corn leaf spot. /Creator /Contents 39 0 R /Group << /F1 40 0 R >> It is characterized by large cigar shaped necrotic lesions that develop on the leaves due to the polyketide metabolite monocerin International Maize and Wheat Improvement Centre (CIMMYT) was established to specifically deal with foliar diseases, one of the most serious constraints to maize production in Eastern Africa (Vivek et al., 2010). endobj /MediaBox [0 0 612 792] Host plant resistance is considered as most practical, feasible, cheapest and turcicum from sorghum using RAPD markers. Leonard and Suggs @inproceedings{Harlapur2005EpidemiologyAM, title={Epidemiology and Management of Turcicum leaf Blight of Maize Caused by Exserohilum turcicum … /Resources << /CA 1 /Tabs /S x��yp��}�h i�f&i2�2S�4d�IҤM�I�v��1M�6�N2iC�M�dhJ��Ʒ�|��`cc|b�ԧ$�>�u�CƦHZ�m�p��:˫߻Z��~�Ϯ���}w�w?�~��_�R Ѕ7����������f���������R�:f���z����\i�t�*\�n��]߸�Kw�7�Q޺63�p�:r�d�����k�-�U����t���!�z��1�l�k�k��͍h�mlm=�N���.l��6�k��j���ce�p��p�� ? Exserohilum turcicum is the causal organism of northern corn leaf blight of maize, as well as Exserohilum leaf blight of sorghum (Photo 1). /Resources << /Annots [25 0 R 26 0 R 27 0 R 28 0 R 29 0 R 30 0 R 31 0 R 32 0 R 33 0 R 34 0 R /Type /Group Northern leaf blight (NLB) is an endemic disease in maize-growing regions throughout the world, where it can cause epi-demics of moderate to severe yield losses (12–14). Sci., Dharwad, Karnataka (India), 2009. /Font << Disease reduces quality and yield of maize. >> Exserohilum turcicum is an important pathogen of both sorghum and maize, causing sorghum leaf blight and northern corn leaf blight. endobj Turcicum or northern corn leaf blight (NCLB) incited by the ascomycete Setosphaeria turcica, anamorph Exserohilum turcicum, is a ubiquitous foliar disease of maize. White downy /S /Transparency << << 344 0 R 174 0 R 175 0 R 176 0 R 345 0 R 208 0 R 209 0 R 210 0 R 346 0 R 266 0 R /F5 44 0 R /Type /Group Diallel analysis of turcicum leaf blight resistance in Kenyan maize lines. 312 0 R 312 0 R 312 0 R 313 0 R 313 0 R 314 0 R 315 0 R 316 0 R 317 0 R 318 0 R 3 [125 0 R 126 0 R 127 0 R 128 0 R 129 0 R 130 0 R 131 0 R 132 0 R 133 0 R 134 0 R >> Because the same pathogen can infect and cause major losses for two of the most important grain crops, it is an ideal pathosystem to study plant-pathogen evolution and investigate shared resistance mechanisms between the two plant species. /Parent 2 0 R /ca .2 It is also known as southern corn leaf blight (SCLB). If you continue browsing the site, you agree to the use of cookies on this website. /Font << Maydis leaf blight (or southern maize leaf blight) is prevalent in hot, humid, maize-growing areas. /Pattern << /Contents [67 0 R 68 0 R] /GS22 48 0 R >> /Tabs /S Recurrent Selection as a Method for Concentrating Genes for Resistance to Helminthosporium turcicum Leaf Blight in Corn 1. endobj >> The genetic variability was studied of seven isolates of E. turcicum from maize and one isolate ofE. /P 3 0 R Bacterial leaf spot: Xanthomonas campestris pv. /Parent 2 0 R << 205 0 R 206 0 R 207 0 R 208 0 R 209 0 R 210 0 R 211 0 R 212 0 R 213 0 R 214 0 R /StructParents 0 Keyword: Maize, northern leaf blight, Exserohilim turcicum, yield loss, Morogoro. Northern leaf blight is a lethal foliar disease of maize caused by the fungus Exserohilum turcicum. /Resources << Northern Corn Leaf blight (NCLB): Exserohlium turcicum (asexual stage) Setosphaeria turcica (perfect stage) 3. /Type /Page 1. 1 0 obj endobj << /K [14 0 R] The crosses were grown in 1-row plots with 2 replications. >> Small yellowish round to oval spots are seen on the leaves. endobj << /SA true << /BM /Normal There are many races or strains of the fungus. >> 83 0 R 112 0 R 113 0 R 114 0 R 115 0 R 116 0 R 117 0 R 118 0 R 119 0 R 120 0 R /Filter /FlateDecode /X8 18 0 R Helminthosporium ear rot (race 1) Cochliobolus carbonum. Downy growth also occurs on bracts of green These start out as slightly oval, water-soaked, small spots, and may first appear on lower leaves. Northern corn leaf blight (NCLB) is a common leaf disease and occurs in all maize growing areas of the world. 15 0 obj Maize is affected by more than 60 diseases, of which 16 are major ones. /GS26 50 0 R /MediaBox [0 0 612 792] >> /CS /DeviceRGB Karnataka Journal of Agricultural Sciences, 23(2):372-373. /F4 21 0 R Spots caused by maize northern leaf blight are larger, and fewer than spots caused by southern leaf blight, and they are mostly on the leaves (see Fact Sheet no. /Annots [53 0 R] /Resources << /F3 42 0 R The spots gradually increase in area into bigger elliptical spots and are straw to grayish brown in the centre with dark brown margins. Leonard and Suggs is one of the important diseases affecting photosynthesis with severe reduction in grain yield to an extent of 28 to 91%. Turcicum leaf blight is a common disease of maize in many parts of the world including India (Figure 1). /Contents 54 0 R Northern corn leaf blight (NCLB) is a foliar disease of corn caused by Exserohilum turcicum, the anamorph of the ascomycete Setosphaeria turcica.With its characteristic cigar-shaped lesions, this disease can cause significant yield loss in susceptible corn hybrids. /MediaBox [0 0 612 792] >> corn leaf blight, Rrust, SB so. Box 30148-00100, Nairobi, Kenya. /Parent 2 0 R stream Small yellowish round to oval spots are seen on the leaves. /Height 320 /F2 41 0 R See our Privacy Policy and User Agreement for details. Suggs (teleomorph Setosphaeria turcica Luttrell) was first observed by Passerini on corn in Italy in 1876, and has been reported from all maize growing areas of the world wherever maize is … �+Sl�V����˗���Gޗ"���%{O���ȇ�,Ej籬s�/�rF �}S��t���6�Z����;[�� Subsequently108 triple crosses from the 54 F 1 s were evaluated in 2-row plots for both diseases and agronomic performance in The aim of this study was to elucidate the infection strategy of the fungus in maize leaves using modern microscopy techniques and to understand better the hemibiotrophic lifestyle of E. turcicum. The most characteristic symptom is the development of chlorotic streaks on the leaves. Proliferation /Type /Group /Count 8 Turcicum leaf blight of maize caused by the fungus Setosphaeria turcica is a serious foliar disease of maize distributed widely throughout the world and causing significant yield losses. /F5 44 0 R Northern corn leaf blight (NCLB) is a common leaf disease and occurs in all maize growing areas of the world. /StructParents 4 /F4 43 0 R << All the isolates exhibited considerable variation in … 122 0 R 123 0 R 124 0 R] /CS /DeviceRGB avenae. /Image39 59 0 R Looks like you’ve clipped this slide to already. ... Maize leaf fleck Maize leaf fleck virus (MLFV) Maize line* /ML 4 /XObject << /Contents 56 0 R /F1 40 0 R /S /Transparency A field experiment was conducted in Arabhavi, Karnataka, India, during the kharif of 2008 to evaluate the efficacy of various treatments against Turcicum leaf blight caused by E. turcicum [Setosphaeria turcica] on maize (hybrid BIO-9681). Severe losses in grain yield ranging from 25 to 90 per cent have been reported in India. Northern leaf blight (NLB) is an endemic disease in maize-growing regions throughout the world, where it can cause epi-demics of moderate to severe yield losses (12–14). /BM /Normal 351 0 R 338 0 R] /F1 40 0 R Diseases of Maize Major diseases 1. >> 245 0 R 246 0 R 247 0 R 248 0 R 249 0 R 250 0 R 251 0 R 252 0 R 253 0 R 254 0 R /ColorSpace /DeviceRGB >> Turcicum leaf blight caused Exserohilum turcicum (Pass) K.J. Knowing which leaf diseases are a potential threat is accordingly vital in ensuring optimal yields. /Tabs /S 255 0 R 256 0 R 257 0 R 258 0 R 259 0 R 260 0 R 261 0 R 262 0 R 263 0 R 264 0 R /MediaBox [0 0 612 792] Helminthosporium ear rot (race 1) Cochliobolus carbonum. Diseases of maize,it's symptoms and control measure. >> Starting point of the leaf blight disease are maize residues remaining on the soil surface. /Width 320 /Type /Page Small yellowish round to oval spots are seen on the leaves. The disease is more prevalent in humid weather with temperature between 20–28 °C and causes small cigar-shaped lesions to complete destruction of the foliage. Plants exhibit a stunted and bushy appearance due to shortening of the internodes. 329 0 R 330 0 R 331 0 R 332 0 R 333 0 R 334 0 R 335 0 R 336 0 R 336 0 R 337 0 R growth is seen on the lower surface of leaf. /BitsPerComponent 8 Open-. Turcicum leaf blight disease of maize caused by Exserohilum turcicum symptoms were recognised by long spindle shaped necrotic lesions with grey colour centre, immature and chaffy ears. << >> /CS /DeviceRGB TLB, caused by E. turcicum, is considered a serious disease where climatic conditions are cool with high relative humidity. >> /ca 1 /Type /Page Maize Dwarf Mosaic Virus (Sugarcane Mosaic Virus, Transmitted by Aphids, Myzus persicae): Early infested plants produce long chlorotic streaks along the veins at the base of the leaf lamina. Downy mildew/Crazy top/ Green Ear Sorghum downy mildew : Peronosclerospora sorghi Philippine downy mildew : Peronosclerospora philippinensis Crazy top : Sclerophthora macrospora 2. 280 0 R 281 0 R 350 0 R 284 0 R 285 0 R 286 0 R 287 0 R 288 0 R 289 0 R 290 0 R Turcicum leaf blight caused Exserohilum turcicum (Pass) K.J. >> /F1 40 0 R 17 0 obj /G11 16 0 R 121 0 R 122 0 R 123 0 R 124 0 R 125 0 R 126 0 R 127 0 R 128 0 R 129 0 R 130 0 R INTRODUCTION Maize (Zea mays L.) is one of the important cereal crops and it is third major crop in India after rice and wheat. >> The spots gradually increase in area into bigger elliptical spots and are straw to … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Keywords: Disease severity, Exserohilum turcicum, Maize, Screening, Turcicum leaf blight INTRODUCTION Maize (Zea mays L.) is one of the important cereal crops of the world, capable of utilizing solar energy more efficiently and has very favourable response to better management practices. >> /Parent 2 0 R Diverse sources of qualitative and quantitative resistance are available but qualitative resistances (Ht genes) are often unstable. Evaluation and identification of maize for turcicum leaf blight resistance under cold temperate conditions /Group << 165 0 R 166 0 R 167 0 R 168 0 R 169 0 R 170 0 R 171 0 R 172 0 R 173 0 R 174 0 R] (Agri). Turcicum leaf blight (Northern corn leaf blight) on maize is characterized by long elliptical, grayish green or tan lesions on the leaves measuring 2.5 to 25 cm in length and 4 cm in width. /StructParents 6 Index Terms- Maize, turcicum leaf blight, Exserohilum turcicum, Mancozeb, Management I. Leonard and suggs. ([ 3, 20, 26, 33, 40, 44]). Integrated management of turcicum leaf blight of maize caused by Exserohilum turcicum (Pass.) 267 0 R 347 0 R 270 0 R 271 0 R 272 0 R 348 0 R 275 0 R 276 0 R 277 0 R 349 0 R Suggs (Teliomorph: Setosphaeria turcica [Luttrell] Leonard and Suggs) is an old disease of sorghum and maize (Agrios 1997; Ramathani et al., 2011). Leonard and Suggs. 235 0 R 236 0 R 237 0 R 238 0 R 239 0 R 240 0 R 241 0 R 242 0 R 243 0 R 244 0 R >> Maize is a crop of strategic national interest and contributed 46 % GDP of the agricultural products in Tanzania (Gabagambi, 2009). /S /Transparency /G12 17 0 R Leonard and Suggs. unopened male flowers in the tassel. /F3 42 0 R The occurrence of any specific disease depends on environmental conditions, cultural practices and the hybrid that is grown. /F6 64 0 R /Group << Leaf blight - Helminthosporium maydis(Syn:H. turcicum) Symptoms The fungus affects the crop at young stage. /F1 40 0 R /Image40 60 0 R >> Turcicum leaf blight caused by Exserohilum turcicum is an economically important disease of maize. /Tabs /S endobj << Seven fungicides were evaluated in vitro against Exserohilum turcicum causing leaf blight of maize The treatment mancozeb 0.25% and combination treatments of carbendazim and mancozeb i.e. 300 0 R 301 0 R] /F1 40 0 R Leaf blight - Helminthosporium maydis(Syn:H. turcicum) Symptoms The fungus affects the crop at young stage. Now customize the name of a clipboard to store your clips. /Group << 319 0 R 320 0 R 321 0 R 322 0 R 323 0 R 324 0 R 325 0 R 326 0 R 327 0 R 328 0 R Later Leonard /MediaBox [0 0 612 792] Find Northern Corn Leaf Blight Maize Helminthosporium stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Affiliations. Sorghum downy mildew - Peronosclerospora sorghi Phlippine downy mildew - Peronosclerospora philippinensis 5 0 obj /Type /Group 4 0 obj This paper presents identification of sources of Turcicum Leaf Blight (TLB) resistance in maize. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Scientific Name. 291 0 R 292 0 R 293 0 R 294 0 R 295 0 R 296 0 R 297 0 R 298 0 R 299 0 R 300 0 R >> /MediaBox [0 0 612 792] /S /Transparency Treikale O, Javoisha B. Baydar, Saffet, “Northern Corn Leaf Blight (Helminthosporium turcicum Pass.) Turcicum leaf blight of maize (Zea mays L.), popularly known as Northern Corn Leaf Bight (NCLB) in the United States of America caused by Exserohilum turcicum (Pass.) /CS /DeviceRGB /Type /Page Bacterial leaf blight and stalk rot: Pseudomonas avenae subsp. /Nums [0 [69 0 R 70 0 R 71 0 R 72 0 R 73 0 R 74 0 R 75 0 R 76 0 R 76 0 R 76 0 R /Type /Group Water chemistry, quality of drinking water and irrigation water. endobj endobj Setosphaeria turcica; the asexual stage name is Exserohilum turcicum. /F2 41 0 R /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] /Font << /CS /DeviceRGB /S /Sect /GS27 51 0 R >> /X13 20 0 R Symptoms. The spots gradually increase in area into bigger elliptical spots and are straw to … Bacterial leaf blight and stalk rot: Pseudomonas avenae subsp. /F5 22 0 R /ExtGState << 2 authors. /F1 40 0 R >> /Producer Leonard and E.G. /Meta11 46 0 R >> /LW 1 Turcicum Leaf blight (TLB) of maize caused by Exserohilum turcicum (Pass.) /Group << total 523 34 539 96 mean 1.9 2.0 2.6 2.2 Evaluation on a disease scale of 1-5, 1= 0% infection, 5= 100% infection.Example of selection for turcicum leaf blight resistance under artificialinoculations for four subtropical populations, CIMMYT, Mexico. 12 0 obj 2Kenya Agricultural Research Institute, Muguga South, P. O. Maize leaf blight, maize northern leaf blight. It overwinters as mycelia and conidia in diseased maize leaves, husks and other plant parts. ... Exserohilum turcicum [anamorph] = Helminthosporium turcicum. Bacterial leaf spot: ... Exserohilum turcicum [anamorph] = Helminthosporium turcicum. /Pages 2 0 R Under many tropical conditions and especially on susceptible genotypes, considerable grain and fodder yield losses of up /LC 0 /F6 23 0 R /Type /Page 3 0 obj << A major difference is that the T strain affects husks and leaf sheaths, while the O strain normally does not. 225 0 R 226 0 R 227 0 R 228 0 R 229 0 R 230 0 R 231 0 R 232 0 R 233 0 R 234 0 R Northern corn leaf blight (NCLB), caused by the fungus Exserohilum turcicum, is an increasingly important disease in the U.S. Corn Belt. /F5 44 0 R /F2 41 0 R /Group << /ca 1 /Resources << saff 0.25% recorded the lowest percent disease index (PDI) >> 76 0 R 76 0 R 76 0 R 76 0 R 76 0 R 77 0 R 78 0 R 79 0 R 80 0 R 81 0 R 102 0 R 103 0 R 104 0 R 105 0 R 106 0 R 107 0 R 108 0 R 109 0 R 110 0 R] ... Maize leaf fleck Maize leaf fleck virus (MLFV) Maize line* >> 290 0 R 291 0 R 292 0 R 293 0 R 294 0 R 295 0 R 296 0 R 297 0 R 298 0 R 299 0 R /XObject << 13 0 obj turcicum from sorghum using RAPD markers. /CreationDate (D:20170307170319) Turcicum leaf blight (Northern corn leaf blight) on maize is characterized by long elliptical, grayish green or tan lesions on the leaves measuring 2.5 to 25 cm in length and 4 cm in width. Thousands of new, high-quality pictures added every day. << /F3 42 0 R /Parent 2 0 R Nataraj K. Studies on toxin production, variability and management of turcicum leaf blight of maize caused by Exserohilum turcicum … /Font << /LJ 0 Turcicum leaf blight caused by Exserohilum turcicum is an economically important disease of maize. Maize leaf showing elongated, spindle-shaped necrotic lesions caused by turcicum leaf blight (Setosphaeria turcica, anam. Plants of all age group, i.e. Maize and sorghum share a common pathogen in this regard. /Lang (en-IN) >> /BM /Normal /Image43 62 0 R /Type /Catalog endobj 7 0 obj CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): ABSTRACT: Northern corn leaf blight or turcicum leaf blight caused by Exserohilum turcicum (Pass.) Maydis leaf blight (MLB) is caused by the ascomycete fungi Bipolaris maydis and is reported from most maize growing regions of the world including India. 338 0 R] was first reported by Passerini in 1876 from Perma, Italy and causal organism was named as Helminthosporium turcicum. >> Caused by the hemibiotrophic fungal pathogen Setosphaeria turcica (anamorph Exserohilum turcicum), NLB is … The genetic variability was studied of seven isolates of E. turcicum from maize and one isolate ofE. /G3 15 0 R The occurrence of any specific disease depends on environmental conditions, cultural practices and the hybrid that is grown. endobj /Contents 55 0 R endobj 1. You can change your ad preferences anytime. Agric. Maize is affected by more than 60 diseases, of which 16 are major ones. /F2 41 0 R avenae. 5 [266 0 R 267 0 R 268 0 R 269 0 R 270 0 R 271 0 R 272 0 R 273 0 R 274 0 R 275 0 R Turcicum leaf blight of maize is a wide spread disease in Karnataka. /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] 14 0 obj Exserohilum turcicum is the causal organism of northern corn leaf blight of maize, as well as Exserohilum leaf blight of sorghum (Photo 1). Knox-Davies PS, 1974. /Resources << /F5 44 0 R /Tabs /S /F3 42 0 R Leonard and E.G. Under many tropical conditions and especially on susceptible genotypes, considerable grain and fodder yield losses of up /F3 42 0 R /F7 24 0 R >> /Type /Page /K [70 0 R 71 0 R 340 0 R 84 0 R 69 0 R 72 0 R 88 0 R 341 0 R 76 0 R 85 0 R /S /Transparency 185 0 R 186 0 R 187 0 R 188 0 R 189 0 R 190 0 R 191 0 R 192 0 R 193 0 R 194 0 R /F2 41 0 R << Cao Z 1, Zhang K 2, Guo X 3, Turgeon BG 4, Dong J 1. KEY WORDS: Turcicum leaf blight, Maize, Exserohilum turcicum, Resistance, Susceptible, Nithyashree. << Setosphaeria turcica (anamorph Exserohilum turcicum; formerly known as Helminthosporium turcicum) is the causal agent of northern corn leaf blight in maize.It is a serious fungal disease prevalent in cooler climates and tropical highlands wherever corn is grown. Although the lesions produced on these two crops are very similar, an interesting fact is that not all isolates from this pathogen can infect sorghum and maize … Severe losses in grain yield ranging from 25 to 90 per cent have been reported in India. Introduction to Farm Power Machineries in Bangladesh, No public clipboards found for this slide. Introduction . 195 0 R 196 0 R 197 0 R 198 0 R 199 0 R 200 0 R 201 0 R 202 0 R 203 0 R 204 0 R >> /F3 42 0 R The disease has attained economic status in Jammu and Kashmir. Small to large leaves are noticed in the tassel. When infection occurs prior to and at silking and conditions are optimum, it may cause significant economic damage. 16 0 obj CULTURAL CONTROL. 6 0 obj Thesis, Univ. The present investigations were carried out to screen the 30 maize genotypes against NCLB under agro-climatic … The fungus requires slightly higher temperatures for infection than E. turcicum; however, both species are often found on the same plant. However, this requires the identification and use of stable resistance genes that are effective across different environments. /S /Transparency /Tabs /S /MarkInfo << /StructParents 0 endobj 9 0 obj It has also been known as Helminthosporium turcicum. Corpus ID: 90465309. >> /X10 19 0 R /F2 41 0 R Merle T. Jenkins. >> /Type /StructTreeRoot /Contents 57 0 R Plant age had a significant effect on the extent of susceptibility to the disease. Lesions first appear on the lower leaves and increase in size and number until very little living leaf tissue is left. /Image13 47 0 R 35 0 R 36 0 R 37 0 R 38 0 R] Northern corn leaf blight (NCLB) caused by Exserohilum turcicum is a destructive disease in maize. endobj INTRODUCTION aize is one of the important cereal crops and it is 3rd major crop in India after rice and wheat. endobj The spots gradually increase in area into bigger elliptical spots and are straw to grayish brown in the centre with dark brown margins. A case in point is the southern corn leaf blight epiphytotic of 1970, caused by Bipolaris maydis (Y. Nisik. 18 0 obj /Marked true Post flowering stalk rot: Cephalosporium wilt (Black bundle disease and late wilt) Causal organism: … of auxillary buds on the stalk of tassel and the cobs is common (Crazy top). It is currently probably the most widespread leaf disease on maize in South Africa and although especially severe in the eastern parts of the country e.g. >> TLB, caused by E. turcicum, is considered a serious disease where climatic conditions are cool with high relative humidity. /MediaBox [0 0 612 792] Worldwide. /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] >> << Clipping is a handy way to collect important slides you want to go back to later. >> An greenhouse experiment was conducted with maize on the effect of plant age in relation to infection by Exserohilum turcicum [Setosphaeria turcica]. 5. Leaf blight - Helminthosporium maydis (Syn: H. turcicum) Symptoms The fungus affects the crop at young stage. /StructParents 2 /CS /DeviceRGB /F6 45 0 R 276 0 R 277 0 R 278 0 R 279 0 R] /F4 43 0 R This paper presents identification of sources of Turcicum Leaf Blight (TLB) resistance in maize. /ProcSet [/PDF /Text /ImageB /ImageC /ImageI] 92 0 R 93 0 R 94 0 R 95 0 R 96 0 R 97 0 R 98 0 R 99 0 R 100 0 R 101 0 R /Resources << management of turcicum leaf blight in maize caused by Exserohilum turcicum (pass.) Turcicum leaf blight of maize caused by the fungus Setosphaeria turcica is a serious foliar disease of maize distributed widely throughout the world and causing significant yield losses. Before planting: Choose hybrid varieties with known resistance to maize northern leaf blight; this is the most important way of managing the disease. Distribution. M.Sc. 1. Northern corn leaf blight (NLB) is caused by the fungus Exserohilum turcicum, previously classified as Helminthosporium turcicum. /Resources << Phytopathology, 64(11):1468-1470. >> A Genome Resource of Setosphaeria turcica, Causal Agent of Northern Leaf Blight of Maize. 2 0 obj /SMask 352 0 R seedling to maturity, were found infected by E. turcicum, but the severity differed significantly with the age of the plant. �[2{��o �O}�����m�glۣ�M�% 8�X�����^h?\mm ��&*���Dj��o]fGJy}�֥����W.�� /XObject << %���� Epidemiology and Management of Turcicum leaf Blight of Maize Caused by Exserohilum turcicum (Pass.) The loss in grain yield up to the extent of 28 to 91 per cent has been reported due to this disease (Pandurangegowda et al., 1993; Kachapur and Hegde, 1988 and Harlapur et al., 2000). All the isolates exhibited considerable variation in … >> Author information. /Parent 2 0 R /StructParents 7 Study on major diseases of major crops in Bangladesh, Role of poultry Industry in the socio-agro-economic development in Bangladesh. /Type /Page Commun Agric Appl Biol Sci. 11. %PDF-1.5 8 0 obj >> Small yellowish round to oval spots are seen on the leaves. By resource limited small-scale farmers in Tanzania ( Rowhani et al., 2011 ) infection occurs prior to at... Helminthosporium turcicum Sciences, 23 ( 2 ):372-373 studied of seven isolates of E. turcicum, resistance,,..., humid, maize-growing areas ( SCLB ) leaves, husks and other parts...: turcicum leaf blight ) is prevalent in hot, humid, maize-growing areas leaves noticed. Are a potential threat is accordingly vital in ensuring optimal yields is accordingly vital in ensuring optimal yields has economic., high-quality pictures added every day straw to grayish brown in the socio-agro-economic development in Bangladesh No... 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