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Pathology
AGNIHOTHRUDU, V. 1958.
Fungi i s o l a t e d from Rhizosphere.
4 . J . I n d i a n B o t . Soc. 3 7 ( 3 ) : 4 2 2 - 4 3 1 . 848
S i x t e e n ascomycetes were i s o l a t e d from
pigeonpea r h i z o s p h e r e .
AGNIHOTHRUDU, V. 1959.
Fungi i s o l a t e d f r o m R h i z o s p h e r e .
5. J. Madras U n i v . (Sec. B)
29(3) : 1 5 5 - 1 8 1 . 849
F i f t y deutermomycetes were i s o l a t e d from
pigeonpea r h i z o s p h e r e .
AGNIHOTHRUDU, V . , K. BHUVANESWARI, and
S. SURYANARAYANAN. 1955.
Fungi i s o l a t e d from r h i z o s p h e r e . 1 . P r o c .
I n d i a n Acad. S c i . ( S e c t . B ) 4 3 :
9 8 - 1 0 4 . 850
Some of the f u n g i f r e q u e n t l y i s o l a t e d from
the r h i z o s p h e r e o f some crop p l a n t s , p a r t i ­
c u l a r l y pigeonpea (Cajanus c a j a n ) , are
i d e n t i f i e d . Three of them are new records
f o r t h e c o u n t r y , v i z . , Melanospora breviros
t r a t a C. Moreau, Aspergillus giganteus
Wehmer, and oedocephalum coprophilum Kobay
a s h i . The d i f f e r e n t c h a r a c t e r s o f these
species are g i v e n .
AHMED, T. 1974.
Rhizoctonia s e e d l i n g b l i g h t of pigeonpea
and i t s c o n t r o l . M.Sc. (1974) T h e s i s .
Bidhan Chandra K r i s h i Viswa V i d y a l a y a ,
K a l y a n i , West B e n g a l , I n d i a . 851
ALAM, M. 1 9 3 1 .
A d m i n i s t r a t i o n Report o f t h e B o t a n i c a l
S e c t i o n f o r the year ending 31st March
1 9 3 1 . Appendix 1 ( 8 ) : Rep. Dep. A g r i c .
B i h a r , O r i s s a , f o r t h e p e r i o d from
1 Apr 1930 to 31 Mar 1 9 3 1 : 4 2 - 6 5 . 852
Sabour 2E 'Rahar' s e l e c t i o n has g i v e n g r e a t
s a t i s f a c t i o n b o t h g e n e r a l l y and because o f
w i l t and s t e r i l i t y r e s i s t a n c e . F u r t h e r
i n f o r m a t i o n o n v a r i e t a l r e s i s t a n c e i s
l i s t e d . The i n c i d e n c e and s e v e r i t y o f
s t e r i l i t y disease vary c o n s i d e r a b l y from
y e a r to year and p r o b a b l y depend on
e x t e r n a l f a c t o r s . A s t r a i n from Pusa,
almost a s p r o l i f i c a s t h e h i g h - y i e l d i n g
Sabour 75 and Pusa P, proved w i l t - r e s i s t a n t
even o n a r t i f i c i a l i n o c u l a t i o n .
ALAM, M. 1933.
Rahar s t e r i l i t y . P r o c . 20th Ann. Meet.
I n d . S c i . Cong. Poona: S e c t . A g r i c .
4 3 : 1 5 - 1 6 . 853
111
The type o f s t e r i l i t y i n q u e s t i o n i s char
a c t e r i z e d b y ( i ) d w a r f i n g o f l e a v e s ,
( i i ) a bushy h a b i t , and ( i i i ) y e l l o w i s h
green i n s t e a d of green l e a v e s . The accomp
a n y i n g s t e r i l i t y due t o the s u p p r e s s i o n
of f l o w e r s and f r u i t s may v a r y in degree
in d i f f e r e n t types of Cajanus indicus.
A n e g a t i v e c o r r e l a t i o n between the degree
o f s t e r i l i t y and y i e l d was n o t e d .
ALVAREZ, G.L.A. 1960.
Phoma cank.sr of pigeonpeas in Puerto R i c o .
J . A g r i c . U n i v . P . Rico 4 4 ( l ) : 2 8 - 3 0 . 854
An epidemic of phoma canker was observed
i n February 1954, causing c o n s i d e r a b l e
l o sses to t h e pigeonpea c r o p . This paper
r e p o r t s a study of the c a u s a l organism as
a species of Phoma c h a r a c t e r i z e d by the
f o r m a t i o n o f p a p i l l a t e p y c n i d i a o f v a r i a b l e
s i z e . The disease c o u l d b e produced i n
h e a l t h y pigeonpea p l a n t s b y i n o c u l a t i o n o r
by s p r a y i n g w i t h a water suspension of
c o n i d i a o b t a i n e d from a pure c u l t u r e .
F u r t h e r study i s a d v i s a b l e .
AMIN, K . S . , B. BALDEV, and F . J . WILLIAMS.
1976.
D i f f e r e n t i a t i o n of Phytophthora stem b l i g h t
from Fusarium w i l t o f pigeonpea b y f i e l d
symptoms. FAO P I . P r o t . B u l l . 2 4 ( 4 ) :
123-124. 855
Fusarium w i l t , caused by Fusarium udum
B u t l e r , is a widespread and damaging d i s ­
ease of Cajanus c a j a n in I n d i a . Phytophthora
stem b l i g h t of pigeonpea, caused by
Phytophthora c a j a n i , can e a s i l y be mistaken
f o r Fuearium w i l t , and t h i s c o n f u s i o n may
account f o r some o f t h e a l l e g e d f a i l u r e o f
w i l t - r e s i s t a n t v a r i e t i e s . Leaves o f p l a n t s
a f f e c t e d b y Fusarium w i l t f r e q u e n t l y t u r n
y e l l o w b e f o r e d r y i n g , w h i l e leaves o f
p l a n t s a f f e c t e d by Phytophthora stem b l i g h t
are i n i t i a l l y l i g h t green w i t h upward
r o l l i n g and u s u a l l y d r y r a p i d l y . L a t e r ,
t h e two diseases cannot be d i s t i n g u i s h e d
by l e a f symptoms, s i n c e t h e leaves become
brown and d r y in b o t h cases. The stems of
p l a n t s a f f e c t e d b y these f u n g i are a l s o
d e s c r i b e d .
ANIL KUMAR, T . B . , P.C. HIREMATH, and
V . V . SULLADMATH. 1976.
F u n g i c i d a l c o n t r o l o f f o o t - r o t o f p i g e o n ­
pea. C u r r . Res. 5 ( 6 ) : 9 8 - 9 9 . 856
Maximum p r o t e c t i o n was o b t a i n e d u s i n g capt
a n as s o i l d r e n c h . Thiram and B r a s s i c o l
gave good c o n t r o l b o t h as seed dresser and
s o i l d r e n c h . Ceresan wet and captan were
n o t e f f e c t i v e as seed d r e s s e r s . There was
no complete c o n t r o l by any of the f u n g i c i ­
des t e s t e d .