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SHARMA, D . , and M.P. SHRIVASTAVA. 1974.
An induced u s e f u l mutant of Cajanus c a j a n
( L . ) M i l l s p . JNKW Res. J . 8 ( 3 - 4 ) :
263-266. 520
F o l l o w i n g i r r a d i a t i o n o f t e t r a p l o i d seeds
o f T - 2 1 , 148 s e e d l i n g s were grown, o f which
30 had r e v e r t e d to the d i p l o i d s t a t e (2n =
22) and 54 were a n e u p l o i d . Among the
d i p l o i d s was a p l a n t d e s i g n a t e d No. 9,
w h i c h had numerous p r i m a r y branches and
pods, and l a r g e r f l o w e r s , pods, and seeds
than i t s p a r e n t . The mutant f l o w e r e d and
matured e a r l i e r than the p a r e n t , d i s p l a y e d
h i g h p o l l e n f e r t i l i t y , and was c h a r a c t e ­
r i z e d by pods s t r e a k e d green at t h e base.
SHIVAPURI, T . N . 1943.
S e l e c t i o n o f s t r a i n s i n a r h a r ( p i g e o n p e a ) .
P r o c . I n d i a n S c i . Cong. 30(3) : 1 0 4 . 521
SIDHESWAR PRASAD, RAM PRAKASH, and
M.A. HASSAN. 1972.
N a t u r a l c r o s s i n g in pigeonpea (Cajanus
cajan ( L . ) M i l l s p . ) . Mysore A g r i c . J . S c i .
6 : 4 2 6 - 4 2 9 . 522
S t u d i e s i n seven v a r i e t i e s showed t h a t
n a t u r a l cross p o l l i n a t i o n ranged from 3.79
t o 25.66%, depending o n v a r i e t y and s i t e .
BR-15 and BR-13 showed h i g h e s t cross
p o l l i n a t i o n w i t h 26.66 and 24.74% r e s p e c ­
t i v e l y , and BR-10 showed l e a s t w i t h 3.79%.
S I L , S.N. 1914.
Improvement o f r a h a r b y s e l e c t i o n . J .
A g r i c . B i h a r O r i s s a . 1 : 2 5 - 2 9 . 523
SINGH, B.B. 1973.
E f f e c t of g a m m a - i r r a d i a t i o n on growth and
y i e l d o f pigeonpea. H a r . J . H o r t . S c i .
2 ( 3 - 4 ) : 8 3 - 8 7 . 524
Pigeonpea seeds were i r r a d i a t e d w i t h Cobalt
60 gamma ray 8, 1 0 , 2 0 , and 30 K r . R a d i a ­
t i o n - i n d u c e d changes i n t h e l e n g t h o f
s h o o t , number of b r a n c h e s , number of pods
per p l a n t , 1 0 0 0 - g r a i n w e i g h t , and g r a i n
y i e l d per p l a n t , i n d i c a t e d t h a t l e n g t h
of shoot was n e g a t i v e l y , whereas o t h e r
c h a r a c t e r s were p o s i t i v e l y , c o r r e l a t e d
up to r a d i a t i o n dose of 10 K r . There was
s i g n i f i c a n t i n c r e a s e i n g r a i n y i e l d a t
10 Kr i r r a d i a t i o n dose over c o n t r o l and
o t h e r dosages.
SINGH, B . B . , S.C. GUPTA, and B.D. SINGH.
1974.
Note on 'UPAS-120' an e a r l y - m a t u r i n g mutant
o f pigeonpea. I n d i a n J . A g r i c . S c i .
5 4 ( 4 ) : 2 3 3 - 2 3 4 . 525
Discusses t h e p l a n t i n g o f the newly developed
pigeonpea v a r i e t y (Cajanus c a j a n )
UPAS-120, which takes o n l y 150 to 190 days
to mature a g a i n s t 250 to 300 days f o r
t r a d i t i o n a l v a r i e t i e s . T h i s a l l o w s farmers
i n I n d i a t o grow h i g h - y i e l d i n g wheat v a r i e ­
t i e s a f t e r a pigeonpea c r o p .
SINGH, H . P . , and M.C. SAXENA. 1977.
Challenges i n a r h a r p r o d u c t i o n . I n d i a n
Fmg 2 7 ( 4 ) : 9 - 1 0 , 1 3 . 526
There i s need o f d e v e l o p i n g v a r i e t i e s
r e s p o n s i v e t o p r o d u c t i o n i n p u t s , i d e n t i f i ­
c a t i o n o f h i g h e f f i c i e n c y legume b a c t e r i a .
Some of t h e f a c t o r s f o r i n c r e a s i n g p r o d u c ­
t i o n are d i s c u s s e d .
SINGH, K.B. 1973.
Punjab can take on Arhar in a b i g way.
I n d i a n Fmg 2 2 ( 1 0 ) : 1 9 . 527
The acreage under a r h a r i s v e r y s m a l l i n
t h e P u n j a b . The main reason is l a t e m a t u ­
r i t y , which causes h i g h f r o s t m o r t a l i t y .
T-21 v a r i e t y developed from a cross T 1 x
T-190 in U.P. gave the h i g h e s t y i e l d and
a l s o matured e a r l i e s t , under the Punjab
c o n d i t i o n s . This v a r i e t y gave on an
average o f 2,500 k g g r a i n y i e l d / h a .
SINGH, K . B . , R.S. MALHOTRA, and R.P. J A I N .
1973.
Arhar i s a p o t e n t i a l k h a r i f p u l s e o f
P u n j a b . P r o g . Fmg 9 ( 1 0 ) : 6 . 528
The a v a i l a b i l i t y o f e a r l y m a t u r i n g v a r i e ­
t i e s o f a r h a r has opened the p o s s i b i l i t y
o f c u l t i v a t i o n o n a l a r g e s c a l e i n the
s t a t e . Amongst the e a r l y m a t u r i n g v a r i e ­
t i e s , T-21 i s t h e e a r l i e s t t o mature and
has the h i g h e s t y i e l d p o t e n t i a l under
Punjab c o n d i t i o n s . I m p o r t a n t h i n t s f o r
the c u l t i v a t i o n o f a r h a r a r e g i v e n .
SINGH, L . , A . S . TIWARI, and B.R. SINGH.
1976.
Y i e l d g a i n s b y s e l e c t i o n f o r seed c h a r a c ­
t e r i s t i c s i n a n adapted l o c a l c u l t i v a r o f
pigeonpea (Cajanus cajan ( L . ) M i l l s p . ) .
T r o p . G r a i n Legume B u l l . 5 : 1 8 . 529
Progeny o f l o c a l b o l d - and brown-seeded
pigeonpea types gave an i n c r e a s e d seed
y i e l d o f 18.29 and 14.4%, r e s p e c t i v e l y ,
compared w i t h t h e u n s e l e c t e d p o p u l a t i o n .
Progeny of s m a l l and l i g h t - b r o w n - s e e d e d
s e l e c t i o n s showed a s i g n i f i c a n t l y reduced
y i e l d . Increased y i e l d i n t h e brown-seeded
types was p a r t l y due to reduced l e v e l s of
seed-borne i n f e c t i o n . P l a n t h e i g h t , p o d -
b e a r i n g l e n g t h , and days t o m a t u r i t y were
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