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P h y s i o l o g y
U t t a r Pradesh. A new y e l l o w symptom
( p r o b a b l y o f v i r u s o r i g i n ) , and a new w i l t
(caused by a f u n g u s ) , were seen on Cajanus
c a j a n at New D e l h i .
P H Y S I O L O G Y
WILLIAMS, R . J . , and D . J . ALLEN. 1976.
Plgeonpea d i s e a s e s . G r a i n legume t r a i n i n g
c o u r s e . P a t h o l o g y . 16 August to 26 Novemb
e r , 1976. I I T A , I b a d a n , N i g e r i a .
58 p p . 1134
Plgeonpea appears t o b e r e l a t i v e l y d i s e a s e -
f r e e i n A f r i c a . I n N i g e r i a , t h e o n l y
d i s e a s e o f consequence i s l e a f r u s t , caused
by livedo oajani Syd. Cercospora l e a f spot
(Cercospora c a j a n i Henn.) o c c u r s at I I T A .
V i r u s - l i k e symptoms a r e r a r e . I n East
A f r i c a , Fusarium w i l t , powdery mildew
(Leveillula taurica) ( L e v . , A r n . ) and a
l e a f s p o t (Mycovellosiella c a j a n i P. Henn.
Rangel e x . T r o t t e r ) may o c c a s i o n a l l y assume
economic i m p o r t a n c e .
WOLLENWEBBER, H.W. 1938.
Fusarium-produced diseases of plgeonpea
(Cajanus c a j a n ) . A r b . B i o l . A n s t . R e i c h -
s a n s t . B e r l . 2 2 : 3 3 9 - 3 4 7 . 1135
Expanded L a t i n d i a g n o s i s g i v e n of Fusarium
lateritium Nees v a r . uncinatum WR. 1930
h e l d i n pure c u l t u r e s i n c e i t s i s o l a t i o n
from plgeonpea i n 1905 b y B u t l e r , s t i l l
p a t h o g e n i c , g i v i n g a brown b a s a l r o t . T h i s
fungus o n l y a t t a c k s plgeonpea and appears
l e s s s e r i o u s than w i l t caused by F. udum.
YOGESWARI, L. 1948.
The element n u t r i t i o n o f f u n g i . I . The
e f f e c t of b o r o n , z i n c , and manganese on
Fusarium s p e c i e s . P r o c . I n d i a n Acad. S c i .
( S e c t . B) 2 8 : 1 7 7 - 2 0 1 . 1136
N u t r i t i o n a l p h y s i o l o g y of F. udum and
o t h e r species was s t u d i e d . Media w i t h h i g h
C.N r a t i o were f a v o r e d by t h e f u n g u s .
Optimum pH f o r growth was 5 . 0 . Responded
w e l l t o v a r i o u s c o n c e n t r a t i o n s o f b o r o n ,
z i n c , and manganese. F. udum 0.5 ppm of
B, Z n , and Mn was optimum. Higher concent
r a t i o n s were t o x i c . Combination o f e l e ­
ments was b e t t e r t h a n i n d i v i d u a l elements
a l o n e .
ABRAMS, R. 1960.
E f f e c t o f g i b b e r e l l i c a c i d o n dormant seed
and subsequent crops of plgeonpea (Cajanus
c a j a n ) . J . A g r l c . U n i v . P . Rico 4 4 ( 1 ) :
2 1 - 2 7 . 1137
Seed of commercial plgeonpea v a r i e t i e s
( K a k i , Saragateado, and F l o r i d o ) were
soaked o v e r n i g h t i n g i b b e r e l l i c - a c i d
s o l u t i o n s , ( 0 , 2 0 , 3 0 , 4 0 , and 50 ppm) in
o r d e r t o determine the e f f e c t o f t h e a c i d
o n p l a n t h e i g h t , f l o w e r i n g p e r i o d , and
y i e l d . There were n o s i g n i f i c a n t d i f f e ­
rences i n p l a n t h e i g h t between the t h r e e
v a r i e t i e s t h a t c o u l d b e a t t r i b u t e d t o t h e
g i b b e r e l l i c - a c i d t r e a t m e n t s . D i f f e r e n c e s
i n f l o w e r i n g p e r i o d s c o u l d n o t b e a t t r i b u t e d
to the g i b b e r e l l i c - a c i d t r e a t m e n t s , as such
d i f f e r e n c e s a r e o f g e n e t i c o r i g i n . Gibber
e l l i c a c i d had n o e f f e c t o n y i e l d o f the
green peas.
ADSULE, R . N . , and G.K. BARAT. 1977.
Occurrence o f o x y l y l - C o A s y n t h e t a s e i n
I n d i a n p u l s e s . E x p e r i e n t i a 3 3 ( 4 ) :
4 1 6 - 4 1 7 . 1138
The presence of o x a l y l - C o A s y n t h e t a s e was
observed in common e d i b l e p u l s e s . E x c e p t ­
i n g i n c h i c k p e a , t h e changes i n o x a l y l - C o A
s y n t h e t a s e a c t i v i t y o f w i n t e r p u l s e s proceeded
in s t a g e s . The enzyme remained more
a c t i v e i n l a t e s t r a i n s than i n e a r l y
s t r a i n s o f w i n t e r p u l s e s . The enzyme i n
summer p u l s e s behaved d i f f e r e n t l y from
t h a t i n w i n t e r p u l s e s . O n t h e b a s i s o f
a c t i v i t y o f o x a l y l - C o A s y n t h e t a s e , i t i s
surmised t h a t pea, c h i c k p e a , and l e n t i l
may be p l a c e d in one g r o u p , summer p u l s e s
(plgeonpea, soybean, green gram and cowpea)
in a second g r o u p , and chickpea o n l y in a
t h i r d g r o u p .
AGARWAL, P . K . , and J . L . KARIHALOO. 1975.
S t a n d a r d i z a t i o n o f g e r m i n a t i o n method f o r
pigeonpeas (Cajanus cajan) seed. Seed
Res. 3 ( 1 ) : 2 1 - 2 5 . 1139
Using seeds from o n l y one r e g i o n i n I n d i a ,
it was found t h a t a good method to e f f e c ­
t u a t e g e r m i n a t i o n i s between b l o t t i n g paper
l a y e r s o r i n sand a t 30°C. Seven abnormal
i t i e s a r e d e s c r i b e d .
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