ICAR NET 2018 (II)

2018 NET (II) Question paper

1.      agar agar is produced from – Red algae (Gelidium sp)

2.      Durable cell wall can be seen in which family of bacteria - Firmicutes (G⁺ve)

3.      Vivotoxin example – Fusaric acid, Pyricularin and Lycomarasmin (All the above answer)

4.      Favourable temperature required for zoospore and sporangia germination in Phytophthora – 12 ^o C & 24 ^o C

5.      Ustilago scitaminea  causes which disease in sugarcane Smut

6.      Father of soil solarisation - Jaacov Katan

7.      Parasexuality was discovered by – Pontecarvo

8.      The term Phytolaexin was introduced by - K. Muller

9.      Kittleson killer (captan) invented in the year – 1952

10.  Soda Bordeaux otherwise called as – Burgundy mixture

11.  Karnal bunt was reported in India by – Mitra

12.  Stem rust rules was initially given in India by – Mehta

13.  Environmental factors was first studied by -  Vanderplank

14.  The term elictor was coined by – Noel Kein

15.  Nucleic acid is the infectious material of virus 1^st given by – Gierrer and Schramm

16.  Systemic acquired resistance depends on the external application of Salicylic acid (signalling pathway of SAR)

17.  Rice khaira is caused by Zn deficiency

18.  Citrus mottle leaf is due to – Zn deficiency (Fe)

19.  Halo heart of turnip and cauliflower - Mn

20.  Best suitable method for the control of soil borne diseases –

21.  Match the following

·        White tip of rice - Aphelenchoides besseyi

·        Root not nematode -  Meloidogyne incognita

·        Reniform nematode - Rotylenchulus reniformis

·        Wheat ear cockle nematode – Anguna tritici

22.  Suitable management of Sclerotium rolfsii –

A.      Irrigation

B.      application of carboxin

C.      application of Propicanozole

D.     application of Trichoderma

E.      Strobulurin group of fungicices

23.  Teleomorph of alternaria – Lewia

24.  Toxin produced by Pyricularia oryzae – Pyricularin, alfa piconilic acid, pyricula.

25.  Piliform ascospore is produced by – Claviceps

26.  Muriform conidia is produced by – Alternaria

27.  Podosphaeria leucotricha produced how many ascus – one (1)

28.  Size of bean common mosaic virus – 750 × 12 nm

29.  Genome of phi X phage– ds DNA (ss DNA also in some occasions)

30.  Potato leaf curl virus of Gemini virus genome – ss DNA

31.  λ phage contains – both lytic and lysogenic phases

32.  Simple interest diseases produces the curve – Saturation curve

33.  Signalling pathways between host and pathogen – cAMP & MAPK

34.  Plant shows resistance top all the type of races of pathogen – Horizontal resistance

35.  Carborendum powder is used – To make wounds in the plants (basic carrier material in fungicidal formulations)

36.  Ground nut bud necrosis is caused by – Virus

37.  Taphrina deformans caused which disease – Peach leaf curl

38.  Turmeric leaf blotch is caused by –Taphrina maculans

39.  Banana streak virus is transmitted by – Mealy bug

40.  Most sensitive method for the detection of plant viruses – ELISA (Up to 10pg/ml)

41.  Chrysanthemum stunt is due to – Viroid

42.  Little leaf of brinjal is caused by – Phytoplasma

43.  Botrytis cinerea sporulation is seen in the presence of – UV rays

44.  Viral parasite ?????????

45.  Artificial culturing of fungal spores was 1^st identified by –

46.  Genus Clostridum was identified by – Prazmowsi (Louis paster)

47.  ICTV was established in the year – 1973

48.  Coenocytic mycelium is produced by genus Phytophthora

49.  Hartig nets are found in – Ectomycorrhizae

50.  Ecto parasitic fungi

51.  Fungus used for genetic studies – Neurospora crassa (Pin/ red brad mould)

52.  PTGS is discovered in - Nematode

53.  B’dellovirio is – G ^–ve (gram negative)

54.  mycoparasitism is between –  fungi and fungi

55.  Hypersensitive response in seen in which crop – Tobacco

56.  Enzyme produced by Erwinia amylovora – Amylovorin (MW – 165000 dalton)

57.  Cuscuta obtain food through –

58.  Gram negative bacteria belongings to the family – Gracilicutes

59.  Flagella all over the body – Peritrichous (Erwinia)

60.  Bean wilt could be maintained in the labortory

61.  Bacteria cell  wall is made up of – Peptidoglycon/ mucopeptides

62.  Virus movement from cell to cell is facilitated by – Plasmodesmata

63.  8^th edition of bergey’s manual of dererminative bacteriology was edited by - R. E. Buchanan and N. E. Gibbons

64.  Protomyces macrosporus matured conidia can spread through –

65.  Father of plant Pathology in India – E. J. Butler

66.  Indian Phytopathological Society was started by – B. B. Mundkur

67.  1 gm of solution contains 50 a.i, mixed in 1 lit of water then what is the concentration in ppm – 500ppm

68.  Striga is partial root parasite

69.  Nucleic acid molecular weight of bacteria - 1.5 × 10⁹  Da (Mollicutes - 0.5 × 10⁹ Da)

70.  Molecular weight of bacterial chromosome - 5 × 10⁷

71.  Bhendi yellow vein virus is transmitted by – Whitefly (Bemisia tabaci)

72.  Potato mosaic virus belonging to family – Potyvirus

73.  Molecular weight of TMV – 39 million daltons (NA MW - 2 × 10⁶ dalton)

74.  Both acropetal and basipetal movement fungicide – Forsetyl Al

75.  Both Systemic and contact fungicide – Metalaxyl MZ

76.  Anthracnose best managed by the application of –

77.  Fungicide with nemaiticidal activity –

78.  Ziram is applicable in which disease – Ergot, Smut, Blast of bajra

79.  Tyloses body present in which diseases –

80.  Which bacteria produces blue colour strain while adding to milk – Pseudomonas syncyanea

81.  PCR can amplify – both DNA & RNA

82.  Most suitable medium for culturing microorganisms – Oat meal agar (Potato dextrose medium)

83.  fungicide which inhibit mitosis synthesis – Benomyl, Thibendazole, Benzamidazole (all the above)

84.  black tip of mango is by brick clings along with deficiency of – B deficiency

85.  Club rot of cabbage cab be best controlled at – 7.6 – 7.8

86.  Synchitrium endobiotium can survive in soil for how many years - 

87.  The allowed percentage of karnal bunt of wheat infected seeds – 0.25 (not sure)

88.  Citrus canker can be transmitted by – Leaf minor (probably by water splash and wind also)

89.  Loss of turbidly and dropping of leaves is  the characteristic symptoms of –

·        Wilt

·        Anthracnose

·        Grapes mildews

90.  No of septations in conidia of Pyricularia oryzae – 2 septations, 3 cells

91.  Blossom end rot of tomato is caused by – Calcium deficiency

92.  Recent advanced techniques in identification of virus – RNA interference

93.  Secondary fixing agent in electron microscope – Osmium tetraoxide

94.  Pseudomonas syringae toxin otherwise called as – all the above (wild fire toxin/ Tab toxin, T - toxin)

95.  Which race will affect banana moko wilt – Race 2

96.  Demicyclic means – lack of uredial stage

97.  Which secretion system is found in almost all plant pathogenic bacteria – Type I

98.  EPIPRE forcasting model for – Cereal rusts

99.  Erwinia enters into the plant cells through the enzyme – cutinaze/ pectinase

·        Gram positive, root nodule nitrogen fixing bacteria – Frankia

·        New name of Clavibacter xyli subsp. Xyli – Lefsonia xyli subsp. Xyli

·        no of segmentations in alfa alfa mosaic virus –

·        Phytoalexins produced by the plant cells due to – production of secondary metabolites (PAL- Phenyl alanine lyases)

·        Chemical used to reduce the Phytotoxicity of another chemicals – Safener (Lime)

·        Which antibody is used in PCR technique – Immunosorbent PCR

·        Quarantine can be only applicable for – Seed borne diseases only

·        Inoculum development of Phyophthora infestans –

·        Dispersal of pathogen through humans - Anthrapochory

·        Singe celled ascus is produced by – Podosphaeria leucotricha

·        PR proteins accumulated in – Vaccuole & apoplast

·        Toxins accumulated in – apoplastic nucleus