3. The plant disorder has no relation with biological agents.if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-shasyadhara_com-box-3-0')}; This disease is caused in rice plants due to the deficiency of a very important nutrient in the soil. (1). Answer: Yes, a rice plant can die in extreme situations. Rhizoctonia solani (3) Plants are stunted, and roots are scanty. Causal agent: • This disease occurs due to zinc deficiency. Khaira disease symptoms are. = Pyricularia oryzae The full form of SRI is System of Rice Intensification. Sheath blight is considered to be an important disease next to rice blast. answered. Rice-sheath blight is a disease caused by Rhizoctonia solani, a basidiomycete, that causes a major limitation on rice production in India and other countries of Asia, it is also found to be a problem in the southern U.S. where rice is also produced. Learn about the khaira disease of rice in this lecture (Hindi) Agriculture Science Studies: RPSC. How to manage. Effect of rice diet on diabetes mellitus associated with vascular disease Postgrad Med. of Entomology, CoA, Raipur. Insects could acquire the virus from any part of the infected plant. It is a micro nutrient which known as zinc. Rhizoctonia oryzae-sativae [anamorph], Curvularia lunata Pythium spp. … The purpose of this chapter is to introduce the reader to the major or devastating diseases of rice. NUlekshmi. And, it can be managed easily using simple agronomical practices such as SRI method. Spraying is done 3 times at 15 day’s intervals. So, it is a type of disease in paddy crop which is caused by abiotic factor instead biotic factors. Spraying with 0.4% ZnSO4+2% urea on the appearance of the symptoms is useful. the Himalayas, Assam, Malabar coast and West Bengal. List of Government Jobs in Horticulture. answer. There is currently no resistant rice variety available for cultivation. Pythium dissotocum This disease can cause yield decreases of up to 50% and cause a loss of quality. According to NENE et al. Recently, scientists have been improving their knowledge of the genetics of resistance to the blast fungus, one of the most damaging diseases of rice, and are using the techniques of biotechnology to develop cultivars with more durable disease resistance.. It is common in younger plants. The disease, caused by Zn deficiency, is associated with heavy but poorly drained soils in India. 4. Disease Name: Khaira disease of rice. In advance stage, entire leaf turns into rusty-brown known as Khaira disease. Bronzing appears on leaf surface in the form of blotches. Epidemiology: • The disease is prevalent throughout the rice growing tracts of the world. Rice blast is a serious fungal disease of rice (Oryza sativa L.) that is threatening global food security. In the Fig.2.1, three fungal diseases, blast, sheath blight and sheath-rot, the bacterial disease, bacterial blight (BB) of rice and the viral disease, rice tungro disease (RTD), are listed as major diseases of rice. Symptoms can be induced with arsenic under artificial conditions. Sphaerulina oryzina [teleomorph]. The important symptoms of Khaira disease are-. Polyphagous Insect-pests of Field and Plantation Crops. Would love your thoughts, please comment. They existed as smaller patches in the nursery or might be observed in the main field of rice. About Kisan Credit Card (KCC): किसान क्रेडिट कार्ड. Intensive use of fertilizer, cultivation of hybrid varieties and climate change are responsible for outbreak of the disease (Lu et a., 2009). (1) Discoloration of lower leaves (brown streaks and blotches) occurring two weeks after transplanting. The deficiency of micro nutrient, zinc in rice causes khaira disease. The Khaira disease of rice was first reported in 1966 at Pant nagar, Uttrakhand by Y. L. Nene. Agriculture Thesis, Dept. Science. Symptoms appear after sowing in nursery or field and transplanting in field which is 15 – 30 DAS. List of Agriculture Universities in India. (2) The midrib at the base of growing leaves is sometimes chlorotic. Brown spot of rice is a plant fungal disease that usually occurs on the host leaves and glume, as well as seedlings, sheaths, stems and grains of adult host plants. Curvularia spp. False smut of rice is so destructive that it has caused up to 10.91 % loss in yield in Egypt (Atia, 2014). Second, scientists are conducting genetic and molecular biological studies on the rice disease resistance to bacterial panicle blight. As it affects the leaf of plant-the rate of photosynthesis decreases which ultimately causes (25-30)% production loss. • It is a non-parasitic and non-infectious disease. = Cercospora oryzae Point 1.1 is conditional and minor cause of the disease. चूना 600-700 लीटर पानी में घोलकर प्रति हेक्टेयर की दर से छिड़काव करें।”, “To prevent this disease, 25 kg of zinc sulphate per hectare should be applied at the time of field preparation before transplanting or sowing. = Acrocylindrium oryzae, Magnaporthe salvinii oryzaeBacterial leaf streak[2] Xanthomonas oryzae pv. Athelia rolfsii [teleomorph] Rice Diseases- Blast Disease of Rice (in Hindi) 11:00 mins. KHAIRA DISEASE OF RICE STUDENT COURSE TEACHER Krishna Kumar.R.V Dr.Parthasarathy.S ID.NO:2015021066 Asst.Prof.,(Plant Pathology) 2. 1958 Oct;24(4):359-71. doi: 10.1080/00325481.1958.11692236. Karnal bunt (also known as partial bunt) is a fungal disease of wheat, durum wheat, and triticale.The smut fungus Tilletia indica, a basidiomycete, invades the kernels and obtains nutrients from the endosperm, leaving behind waste products with a disagreeable odor that makes bunted kernels too unpalatable for use in flour or pasta. Secondary School. जिंक सल्फेट तथा 2.5 कि.ग्रा. Acrocyfimlrium 01yzae Sawada f:stilaginoidea tfrrns (Ck) Talc llc/mi11/hosporium oryzae Breda de Ha3r, Micro nutrients or trace elements are essential chemicals needed by plants in minute quantities. Fusarium spp. On an average 25 kg Zinc Sulphate per hactare should be applied. Agriculture Thesis, Dept. Also Read: Insect-pests of Hybrid Maize and Management of Pink Stem Borer: M. Sc. After the appearance of the disease, 5 kg of zinc sulphate and 2.5 kg of lime dissolved in 600 – 700 liters of water should be sprayed per hectare.”. The roots of seedling should be dipped in 2% ZnO suspension. Seed borne (internally and externally); also in plant debris. The main management options available to minimize sheath blight include: (2). Fighting the blast fungus. of the rice plant known as Khaira disease that affects about 16,000 ha in the Tarai district, U. P. alone. Wilting or leaf blight symptom; wilting occurs 3-4 weeks after transplanting and results in death of plant or few leaves ; leaf blight more predominant and occurs between tillering and heading stage; yellowish spots start from leaf tip or margins; inner margin of the small drops of bacterial ooze is found on infected portions which on … जिंक सल्फेट प्रति हेक्टेयर की दर से रोपाई या बुवाई से पूर्व खेत की तैयारी के समय डालना चाहिये। रोग लगने के बाद इसकी रोकथाम के लिए 5 कि.ग्रा. The next application of zinc sulphate is done after 3 years. 31.05.2020. Roots also turn brown in colour. Pythium spinosum, "The genome sequence of the rice blast fungus Magnaporthe grisea", Common Names of Diseases, The American Phytopathological Society, https://en.wikipedia.org/w/index.php?title=List_of_rice_diseases&oldid=1018559174, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Damage by bacteria (see also under fungal and miscellaneous diseases), Blast (leaf, neck [rotten neck], nodal and collar), Water-mold (seed-rot and seedling disease), Excessive salt concentration in soil or water, Arsenic induced, unknown physiological disorder, This page was last edited on 18 April 2021, at 18:29. Mango Stem Borer: Batocera rufomaculata. Rhizoctonia solani [anamorph], Sarocladium oryzae It is found mostly in the cultivated wild rice … SRI method is a method developed for rice cultivation. This is an important physiological disorder of rice plant. This article is a list of diseases of cultivated wild rice (Zizania palustris).. Fungal Brown Spot is the only significant commercial disease of cultivated wild rice. This is an important physiological disorder of rice plant…. They existed as smaller patches in the nursery or might be observed in the main-land of rice. of Entomology, CoA, Raipur. Cochliobolus miyabeanus = Rhynchosporium oryzae, Cercospora janseana This article is a List of Diseases of rice (Oryza sativa). Sclerotium oryzae [synanamorph], Achlya conspicua After acquiring the … Farmers lose an estimated average of 37% of their rice crop to pests and diseases every year. (4). Hosts and symptoms. The midrib becomes chlorotic means contaminated with the chlorine. • The disease is generally severe in soils of low pH, low available potassium (K2O) and also deficient in essential and trace elements. Sclerotium rolfsii Taiwan (786): An Introduced Papaya Variety. The buds sprout less and the plant growth inhibited.”, -Directorate Extension Services, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.). It seams like something sprayed over the leaf surface. When total available phosphorus is higher in soil. if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-shasyadhara_com-medrectangle-3-0')}; This disease is common in densely or intensively planted rice field. Microdochium oryzae The deficiency of zinc in rice causes khaira disease. (5). ग. “यह रोग न लगे, इसके लिए 25 कि.ग्रा. It has been extensively studied due to the importance of rice production and consumption, and because of its vast distribution and destructiveness across the world. It can be done before transplanting or sowing. The disease causes loss in yield as well as in quality. Khaira disease Of Rice is micro-nutritional (Zn) deficiency characterized by the presence of dusty brown patches on leaves which ultimately undergo necrosis. and other pathogenic fungi. The colouration can be recognized by the rust or brownish red colour. Khaira disease is caused by the deficiency of Zn in soil. Oryzae. (9, 10), the disease appears in low-lying patches and is not pathogenic. Sarocladium oryzae Fusarium spp. Fusarium spp. (4) The disorder becomes apparent after several years of rice cropping the following reclamation. In addition to good crop management, timely and accurate diagnosis can significantly reduce losses. Generally, it is a disease of rice seen in nursery stage. (3). Magnaporthe grisea[2] [teleomorph], Cochliobolus miyabeanus oryzae = X. campestris pv. Rice is the seed of the grass species Oryza sativa (Asian rice) or less commonly Oryza glaberrima (African rice). Formula is- 5 kg zinc sulphate + 2.5 kg of lime + 1000 litre of water. Irrigation water having higher bicarbonate concentration. 0.5% zinc sulphate solution is used as spraying agent. The Khaira disease of rice was first reported in 1966 at Pant nagar, Uttrakhand by Y. L. Nene. (ag.) “यह रोग मिट्टी में जस्ते की कमी से होती है। प्रभावित फसल की निचली पत्तियाँ पीली पड़ना शुरू हो जाती हैं और बाद में पत्तियों पर कत्थई रंग के छिटकवाँ धब्बे लगते हैं। कल्ले कम निकलते हैं तथा पौधों की वृद्धि रुक जाती है।”, -निदेशालय विस्तार सेवाएँ, इंदिरा गांधी कृषि विश्वविद्यालय, रायपुर (छ. In the uplands, the blast is particularly important because the environment favours its proliferation. About Kisan Credit Card (KCC): किसान क्रेडिट कार्ड. Achlya klebsiana Pythium spp. NUlekshmi. The partial-resistant rice varieties and lines, such as Jupiter and LM-1, were developed from this program. Rice tungro virus Physiological 21 Khaira disease (zinc deficit'ncy) l Rice dwarf vims 1) Occurrence in Nepal Table 3 List of rice diseases in Nepal Cau~al organisn1 J~~vricularia OJ)'Zae Thanotephorus rncumeris (FK.i clonk. Straighthead is a disorder of unknown cause. Cochliobolus miyabeanus Damage by many fungi including Plant root growth is restricted. Bipolaris oryzae [anamorph], Microdochium oryzae khaira disease of Rice is due to - Brainly.in. RTBV cannot be transmitted by leafhoppers unless RTSV is present. This article is a List of Diseases of rice (Oryza sativa). Khaira Disease of Rice: Cause, Symptoms and Management The Khaira disease of rice was first reported in 1966 at Pant nagar, Uttrakhand by Y. L. Nene. This is one the most common disease in rice. If you are facing a problem in your crop and need help with diagnosis, seek advice from a professional or use the Rice Doctor . To control the rice virus diseases, such as rice stripe disease and rice black-streaked dwarf disease, insect- proof nets (> 20 mesh) or non-woven fabrics (15–20 g/m 2) have been used to cover the seedling bed during the entire seedling period in place of the seed treatment using insecticides (Guo et al., 2013a). Pythium dissotocum Ceratobasidium oryzae-sativae The lower leaves of the affected crop begin to turn yellow and later the leaves are streaked with brown coloured spots. 3. Basics of Plant Pathology (in Hindi) 11:36 mins. List of Agriculture Universities in India, Horticulture Development Officer (HDO): Criteria, Work and Salary. This is an important physiological disorder of rice plant. Curvularia spp. The midribs at the base become chlorotic in younger leaves. Fusarium spp. Growth of the plants is limited and plants stunted. 2. The disease complex is associated with rice tungro baciliform virus (RTBV) and rice tungro spherical virus (RTSV). 21 lessons • 3h 27m . 1. Cochliobolus lunatus [teleomorph], Pyricularia grisea The disease is probably more widely spread but other areas have not been surveyed. Vectors of Plant Diseases: List of Virus, Bacteria and Fungi Mycoplasma, Wilt and Leaf Spot of Tomato (Fusarium, Bacterial and Spotted Wilt, Septoria Leaf Spot and Bacterial Leaf Spot):: Cause and Management:: Photo/Images, False Smut Of Rice : Cause, Symptoms, Life Cycle, Damage, Prevention and Control Measures, Stored Grain Pests: Post Harvest Pests: Rice Moth (Corcyra cephalonica), Citrus Disease and Pests 01:: Citrus Gummosis: Image/Photo/Pictures/Video, Photos/Images: Red Gram Insects|| Identification, Ber Grey Caterpillar (Thiacidas postica Walker): Photo/Images. Genetic mapping to identify the rice genes associated with disease resistance is under way. ), “This disease in soil, occurs due to lack of zinc. • It is found to be pendemic in heavy rainfall areas viz. It is done once crop is affected. Straighthead. Rice sheath blight is an increasing concern for rice production especially in intensified production systems. List of Agriculture Universities in India. Treatment of rice seed with 0.4% ZnSO4 before sowing or of seedlings before transplanting gives control. (ag.) General Diseases in Plants (in Hindi) 12:48 mins. Read more about Blast Rice Diseases on pages 1-2, 6-7. Bacterial blight[1] Xanthomonas oryzae pv. and other fungi. Also Read: Polyphagous Insect-pests of Field and Plantation Crops. Taiwan (786): An Introduced Papaya Variety. Khaira diease of rice 1. The saline-sodic type of soil is another important factor of khaira disease. Thanatephorus cucumeris The plant disorder has no relation with biological agents. Insect-pests of Hybrid Maize and Management of Pink Stem Borer: M. Sc. The leaves are discoloured. The symptoms of the disease can be seen in different stage: Colouration on the surface of leaves can be seen. Chlorosis starts from the base of leaves. Pythium spinosum.