Plant Pathology MCQ's- Plant Pathology Multiple Choice Questions have very important place in all Agriculture Competitive Exams. There are about 80 species of plant parasitic nema-todes associated with wheat (Triticum aestivum L.) butin India only two are considered to be key pests viz., the cereal cyst nematode, Heterodera avenaeWoll., the causal organism of ‘molya disease’, and Anguina tritici (Steinbuch) Chitwood. Molya disease of wheat and barley in Rajastan. The virus that causes wheat streak mosaic survives in volunteer wheat and is spread by wheat curl mites. Moth 4. 8. They are common in the Great Plains and have similar disease cycles, symptoms, and management approaches. I said to him, “ your brother is a brave boy”. Commonly, plants infected with wheat streak mosaic also are infected with High Plains disease and Triticum mosaic. Raj MR-1. Haryana 4. It is seen that lot of literature is available on symptomolgy of plant diseases, physiological and molecular aspects of the plant pathogens. For the management of Molya disease: o Two to three deep ploughings during May/June at 10-15 days’ interval. Indra Rajvanshi, Sharma GL, 2000. A survey of wheat fields May 4-5 in southwest, south central, and southeast Nebraska found low levels of disease with most fields showing a lush green growth (Figure 1).Leaf rust was found in a few fields at trace levels (Figure 2).Stripe rust was found in the majority of fields visited. Housefly. ...b>Wheat-maize-wheat cropping pattern was followed with the adjustment of legumes in summer gap (land available after wheat harvest till maize sowing). 1. Molya disease of wheat is caused by ____? Successfully reported this slideshow. INDEX S. NO.HEADINGS1.PART 01: PURCHASE MCQ(S)2.PART 02: … 22 23. o Rotation of wheat/barley with mustard or gram for 1-2 years. 6. Survey done earlier, showed the association of AM with rhizosphere of wheat crop. (4) Anguina tritici (2) Heterodera avenae. o Early sowing of wheat (up to 15th November). the wheat growing fields of Rajasthan state in India causing 'Molya' disease of wheat, causes heavy economic loss. BH 393, BH 75/wheat var. Many farmers are identifying by using their logic and past experience and try to manage the pathogen. Putman D F, Chapman L J, 1935. Scale insect 2. Summary of Wheat Disease Control Practices • Plant after Oct. 15. Celiac disease is characterized by a harmful immune reaction to gluten.. An estimated 0.5–1% of people in the United States and Europe have this condition (34, 35, 36).Celiac disease … Wheat stripe rust The disease wheat stripe (yellow) rust is caused by P. striiformis Westend. ... 1959. 1934: Ayyar reported root knot nematode infesting vegetables and other crops in South India. Q.78 Molya disease of wheat is most severe in? Maharashtra, Tamil Nadu and Karnataka. Wheat streak mosaic virus, High Plains virus, and Triticum mosaic virus are very similar wheat diseases, with the same vector, wheat curl mite, Aoeria tosidlella Keifer. 1934: Ayyar reported root knot nematode infesting vegetables and other crops in South India. Gujrat 3. Answer. 1958: Molya disease of wheat and barley (caused by Heterodera avenae) recorded in Rajasthan by Vasudeva. The disease has been described by Prasad et. which include National Eligibility Test, Pre Agriculture Test, Common Entrance Test etc. The disease is often most severe in areas of a field that are closest to these sources of the disease and mites. Matheiu Tillet (France) [Great grandfather of Phytopathology] (1755 BC): Demonstrated experimentally that the bunt of wheat was contagious and thought that the spores contained a poisonous entity. Work published on stinking smut of wheat. It is commonly found near the brick kilns in Uttar Pradesh, Bihar, West Bengal and Punjab in … 1. In India, the cereal cyst nematode, Heterodera avenaecauses the „molya‟ disease of wheat and barley in Rajasthan, Punjab, Haryana, Himachal Pradesh and Jammu and Kashmir. This type is believed to be developed from T. diccoides koru., a wild form. Legumes i.e. Management of cereal cyst nematode, Heterodera avenae in barley through chemical. been reported in Germany (Olivera Firpoet al., 2015, 2017). Similar results also have been reported by Paddy (1999) and Rafique (2000). 2) MOLYA DISEASE OF BARLEY AND WHEAT The disease was first reported on wheat and barley in Rajasthan. Plant Disease is the leading international journal for rapid reporting of research on new, emerging, and established plant diseases. The nematode was found to be a serious pathogen of wheat and barley causing “Molya disease” characterized by deformed root system. Answer. The disease is often accountable for very serious losses in the field, due to destruction of the foliage, followed in some cases by sterility of spikelets or in the production of badly shrivelled grain. 1926, 1933 – Ayyar reported root – knot nematode infestation on vegetable and other crops in India. ... Change the following sentence into reported speech and mark the correct option among the choices given? This Page is Updated Last Updated: 18/10/2020, 05:38 pm IST. ... Nematode disease molya Heterodera avenae (treatment DBCP 60 % EC at the rate of 30 l/ha) Diseases of wheat and their pathogen according to Khoso (1977) Disease 1936: White tip disease of rice caused by Aphelenchoides besseyi was reported by Dastur. The loss due to this nematode is about 32 million rupees in wheat and 25 million rupees for barley in Rajasthan State alone. Mealy bug 3. Diseases Index; Use the links below to find out more about the key disease threats in wheat. Q.79 The mechanism favouring maize as an allogamous crop species is? : The durum or macroni wheat, cultivation in India, is considered to be very old. f. sp. ... Diseases of wheat crop. It is now known to be widespread in the states of Rajasthan, Haryana and Punjab. Survey studies revealed that due to congenial climatic conditions and sandy soil, the nematode established and distributed in different areas The damage may be as much 50% in certain infected areas. Butler, reported Ufra” disease of rice caused by Ditylenchus angustus from Bengal: 1919: Milne, reported Anguina tritici (seed gall) of wheat in Punjab: 1936: Dastur, reported white tip disease of rice by Aphelenchoides besseyi’. The journal publishes papers that describe translational and applied research focusing on practical aspects of disease diagnosis, development, and management in agricultural and horticultural crops. and Kaushal, K.K., 1980, On the biotypes of Heterodera avenae, the causal organism of Molya disease of wheat and barley in India, Indian J. In the local language 'Molya' means malformed as this nematode colonizes root system and causes its deformation. 1934, 1936 – Dastur reported white tip disease of rice caused by Aphelenchoides besseyi in Central India. 1959 – Prasad, Mathur and Sehgal – reported cereal cyst nematode for the first time from India. MOLYA DISEASE This nematode was reported for the first time from Sikar district of Rajasthan by Vasudeva in 1958. This type was reported to be grown in south i.e. 2. Other Disease Causing Agents Nematodes- Molya Disease of Wheat, Root knots of Tomatoes Mycoplasma Like Organisms- Little Leaf Disease of Brinjal Physiological Agents- Heat, Sun, Cold, Hormone Imbalance, Nutritional Deficiency, Chemicals etc. Macroni Wheat ( T.durum Desf.) In 2016, another ‘broadly’ virulent race was detected in an out-break in Sicily (Bhattacharya, 2017). o Grow resistant barley var. 1958: Molya disease of wheat and barley (caused by Heterodera avenae) recorded in Rajasthan by Vasudeva. • Wheat after corn may provide inoculum for scab • Do not lime Take-All infected fields, acid soils have less Take-All. Nematol., 9: 164. • Treat seed with fungicide and insecticide to control aphids in the fall. Wheat, is the name given to several plants in the genus Triticum including Triticum aestivum, Triticum compactum, Triticum spelta and Triticum durum, which are annual or biennial grasses grown primarily for their grain.Wheat species possess an erect smooth stem with linear leaves that grow in two rows on either side of the stem with larger 'flag' leaves at the top of the stem. ... plant disease organisms, and pests. There are many species of this particular genus that is used for cultivation such as Triticum sativum, Triticum polonicum, Triticum monococcum, etc.However, Triticum sativum is the most cultivated wheat variety. The disease was first reported from Bihar and is now well known in Bihar, Uttar Pradesh, West Bengal and Punjab. In: Current Science, 28 453. ... Q.117 Worldwide resistance to inorganic pesticide was first reported in? However it is observed that all farmers are unable to identify the diseases visually. Rajasthan 2. The loss due to this nematode is about 32 million rupees in wheat and 25 million rupees for barley in Rajasthan State alone. Principals of cure All plant Diseases spread due to an external reason. Temperature sensitivity to resistance has been reported for leaf rust (Puccinia recondita) in wheat, broomrape (Orobanche cumana) in sunflower, black shank (Phytophthora nicotianae) in tobacco and bacterial blight (Xanthomonas oryzae pv. tritici (Pst), a pathogen highly prevalent in temper- Annual Report, Society of Plant Protection of North Japan, 5:83. • Use recommended resistant varieties. Number of Questions Added: 03, #47-49. reported from Sikar district of Rajasthan state. Oat seedling disease in Ontario. (1) Globodera restochinensis (2) Heterodera avenae (3) Meloidogyne spp. In India, the cereal cyst nematode, Heterodera avenae causes the „molya‟ disease of wheat and barley in Rajasthan, Punjab, Haryana, Himachal Pradesh and Jammu and Kashmir. 1. oryzae) in rice. 138 Wheat and Barley Research 10(3):138-150 Review Article Barley diseases and their management: An Indian perspective Om P. Gangwar1, Subhash C. Bhardwaj1*, Gyanendra P. Singh2, Pramod Prasad1 and Subodh Kumar1 1ICAR-Indian Institute of Wheat and Barley Research, Shimla, Himachal Pradesh, India 2ICAR-Indian Institute of Wheat and Barley Research, Karnal, India 1,2. Al. Punjab. Moth. Haryana. 1936: White tip disease of rice caused by Aphelenchoides besseyi was reported by Dastur. Survey was followed by frequency Swarup, G., Sethi, C.L., Seshadri, A.R. A deadly wheat disease common to Asia and South America has been identified in Africa for the first time, raising fears of potential spread to wheat crops across the continent. 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