GATE 2021 Agri Special Questions



๐ŸŒพThe majority of phytopathogenic fungi belong to  ? - Ascomytes & Basidiomycetes


๐ŸŒพ Causal agent of blast of rice and gray leaf spot in turfgrasses ? - Magnaporthe grisea


๐ŸŒพ Causal agent of soybean rust ?- Phakospora pachyrhizi



๐ŸŒพ Most bacteria that are associated with plants are actually ? - Saprotrophic


๐ŸŒพ Most plant pathogenic bacteria are ? - Rodshaped (bacilli)


๐ŸŒพ Plant viruses must be transmitted from plant to plant by a ? - Vector


๐ŸŒพ Bacteria leaf blight of rice caused by  ? - Xanthomonas oryzae


๐ŸŒพ The disease caused by Leptosphaeria sacchari in sugarcane is ? - Ring spot


๐ŸŒพ Loose smut of wheat is ? - Internally seed borne


๐ŸŒพ The Karnal bunt of wheat is caused by  ? - Neovossia indica




๐ŸŒพ Sugarcane rust is caused by ? - Puccinia eriathi


๐ŸŒพ Leaf blight of wheat is caused by ? - Alternaria trictinia


๐ŸŒพ Stem rot of rice is caused by ? - Sclerotium oryzae


๐ŸŒพ Tungro disease of rice is spread by ? - Nephotettix virescens


๐ŸŒพ Ufra disease of rice is caused by ? - Ditylenchus


๐ŸŒพ Whip smut of sugarcane is caused by  ? - Ustilago sciteminae


๐ŸŒพ Red rot of sugarcane is caused by  ? - Collectorichum falcatum




๐ŸŒพ Sugarcane mosaic disease is transmitted by ? - Rhopalosiphum maidis


๐ŸŒพ Disease also known as “Killer Disease of Wheat” is  ? - Black/ Stem rust


๐ŸŒพ Akiochi disease is due to  ? - Sulphur toxicity


๐ŸŒพ White rust of crucifers is caused by  ? - Albugo candida


๐ŸŒพ Crop showing maximum resistance to nematode is ? - Marigold


๐ŸŒพ Iris famine in 1845 ,was caused due to ? - Phytophothora infestance


๐ŸŒพ Father of Indian Pathology is ? - E.J.Butler

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