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: ..Plant Pathology

  1. #1

    Jul 2011
    709

    ..Plant Pathology

    :-
    phytopathology phyton pathos logos . .

    De Bary 1853 Phytophthora infestans , .
    1881 .
    :-
    .
    :-
    1-
    2-
    3-
    4- .
    5-
    6- .
    7-


  2. #2

    Jul 2011
    709

    : ..Plant Pathology

    :-

    .
    :-
    :-
    1- :- Parasitic diseases
    ( Parasite) ( Host ) .
    2- :- Virus diseases
    .
    2- :- Non parasitic diseases
    .
    :
    Fungi
    Saprobes Parasites .
    Hyphae Hypha . Mycelium . Septae ( (Septum ) . . .


  3. #3

    Jul 2011
    709

    : ..Plant Pathology

    Bacteria
    Prokaryotes Kingdum Monera D N A . .
    Algae
    Protesta . . . . . Chlorophyta

    Parasitic Plants
    . .

    Nematode
    . Phylum Nemata Kingdum Animalia 25 0 3 , Longidorus 10 . .


  4. #4

    Jul 2011
    709

    : ..Plant Pathology

    Virus
    . RNA DNA . . 10 2000 .
    :- Control plant Diseases
    .
    .
    1- :-
    :
    .
    1) : - Induced resistance
    .

    : .
    :

    :
    . .
    2) :- Biological Control
    Trichoderma harianum subtillus Bacillus
    3)
    .
    4)
    ( )
    5)
    ( .
    6)
    ..
    2- :-
    :-
    : - Chemical control

    :- Biological Control
    .


  5. #5

    Aug 2011
    -
    2,545

    : ..Plant Pathology

    ..

  6. #6
      Eiman
    Jul 2011
    -
    14,735

    : ..Plant Pathology

    .......

: 1 (0 1 )

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