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a s s o r t e d i n d e p e n d e n t l y except i n t h r e e
c a s e s . The complementary f a c t o r o f v e i n
c o l o r showed a l i n k a g e w i t h t h e b a s i c
f a c t o r o f l e a f l e t shape w i t h a c r o s s o v e r
v a l u e o f 24%. The b a s i c f a c t o r o f l e a f l e t
shape i s l i n k e d w i t h complementary f a c t o r
o f seedcoat c o l o r , w i t h a c r o s s o v e r v a l u e
of 7.9%, whereas t h e v e i n c o l o r and t h e
seedcoat c o l o r were found to be l i n k e d
w i t h c r o s s o v e r v a l u e o f 29%.
CHAUDHARI, B . B . , and J . A . PATIL. 1953.
' C r e e p i n g ' , a mutant in
M i l l s p . C u r r . S c i . 2 2 : 1 5 3 . 721
A t r u e - b r e e d i n g mutant w i t h a p r o s t r a t e
h a b i t of g r o w t h has been o b s e r v e d . The
form arose spontaneously in the F 3 of a
cross between two normal v a r i e t i e s . The
mutant is l i k e l y to be u s e f u l as a cover
c r o p , and i n s o i l c o n s e r v a t i o n and s t r i p
c r o p p i n g .
DAHIYA, B . S . , and J . S . BRAR. 1976.
The r e l a t i o n s h i p between seed s i z e and
p r o t e i n c o n t e n t in pigeonpea (Cajanus cajan
( L . ) M i l l s p . ) . T r o p . G r a i n Legume B u l l .
3 : 1 8 - 1 9 . 722
I n 220 l i n e s o f pigeonpea, t h e h i g h e s t seed
p r o t e i n c o n t e n t s (> 24%) were found in
l i n e s P-1862, P - 3 7 6 1 , P-978, H-12, and H-18
w i t h 100-seed w e i g h t s o f 6 . 5 , 8 . 0 , 8 . 0 ,
9 . 7 5 , and 10.00 g, r e s p e c t i v e l y . Cv
Prabhat and Pant A-9 w i t h l o w e s t 100-seed
w e i g h t s of 5.5 and 5.75 g, r e s p e c t i v e l y ,
had p r o t e i n c o n t e n t s of 17.15 and 22.32%.
Hy-3A and Hy-3C genotypes w i t h t h e h i g h e s t
100-seed w e i g h t s of 19.5 and 20.0 g had
p r o t e i n c o n t e n t s of 20.56 and 19.58%.
There was no evidence of a g e n e r a l s i g n i ­
f i c a n t c o r r e l a t i o n between 100-seed w e i g h t
and seed p r o t e i n c o n t e n t .
DAHIYA, B . S . , and J . S . BRAR. 1977.
D i a l l e l a n a l y s i s o f g e n e t i c v a r i a t i o n i n
pigeonpea (Cajanus c a j a n ) . Expl A g r i c .
1 3 ( 2 ) : 1 9 3 - 2 0 0 . 723
Four c h a r a c t e r s were s t u d i e d i n a d i a l l e l
cross o f s i x c u l t i v a r s . A d d i t i v e i n h e r i ­
tance was i m p o r t a n t i n d e t e r m i n i n g f l o w e r ­
i n g t i m e , b u t the dominance component was
g r e a t e r than t h e a d d i t i v e component, and
overdominance was observed f o r pod number,
100-seed w e i g h t , and y i e l d . H e r i t a b i l i t y
e s t i m a t e s f o r a l l t r a i t s except f l o w e r i n g
time were l o w , and t h e b u l k p o p u l a t i o n
method of b r e e d i n g was suggested f o r e a r l y
s e g r e g a t i n g g e n e r a t i o n s . I t i s suggested
t h a t , t o improve e a r l i n e s s , t h e b e s t c r o s s
would be between p a r e n t s w i t h low g e n e r a l
combining a b i l i t y f o r f l o w e r i n g t i m e and
h i g h g e n e r a l combining a b i l i t y f o r o t h e r
t r a i t s .
DAHIYA, B . S . , J . S . BRAR, B . L . BHARDWAJ,
and R.K. BAJAJ. 1978.
S t u d i e s o n t h e h e r i t a b i l i t y and i n t e r ­
r e l a t i o n s h i p of some a g r o n o m i c a l l y i m p o r ­
t a n t c h a r a c t e r s in pigeonpea (Cajanus cajan
( L . ) M i l l s p . ) . Genet. A g r . ( I n P r e s s ) . 724
S i x c u l t i v a r s o f pigeonpea were e v a l u a t e d
f o r seven v a r i a b l e s i n a d i a l l e l experiment
u s i n g r e g r e s s i o n c o e f f i c i e n t s , c o r r e l a t i o n s ,
and combining a b i l i t y e s t i m a t e s . Regress
i o n c o e f f i c i e n t s were h i g h , i n d i c a t i n g
l a r g e a d d i t i v e e f f e c t s f o r f l o w e r i n g time
and p l a n t h e i g h t . Y i e l d was s i g n i f i c a n t l y
c o r r e l a t e d w i t h number o f pods per p l a n t ,
number of g r a i n s per p o d , and 1 0 0 - g r a i n
w e i g h t , b u t n e g a t i v e l y c o r r e l a t e d w i t h
p l a n t h e i g h t . P l a n t h e i g h t was p o s i t i v e l y
c o r r e l a t e d w i t h y i e l d and i t s components.
The b e s t i n d e x of y i e l d among the t r a i t s
s t u d i e d was number of pods per p l a n t . GCA
v a r i a n c e s were l a r g e r than SCA v a r i a n c e s ,
except f o r y i e l d and pods per p l a n t ,
s u g g e s t i n g predominance of a d d i t i v e gene
e f f e c t s .
DAHIYA, B . S . , J . S . BRAR, and B.S. BHULLAR.
1977.
I n h e r i t a n c e o f p r o t e i n c o n t e n t and i t s
c o r r e l a t i o n w i t h g r a i n y i e l d i n pigeonpea
(Cajanus cajan ( L . ) M i l l s p . ) . Q u a l . P l a n t
P1. Fds Hum. N u t r . 2 7 ( 3 - 4 ) : 3 2 7 - 3 3 4 . 725
The F 2 mean p r o t e i n c o n t e n t s were g e n e r a l l y
between the p a r e n t s , b u t s l i g h t l y c l o s e r
t o the l o w - p r o t e i n p a r e n t . R e c i p r o c a l
d i f f e r e n c e s in p r o t e i n of F 1 seeds and the
absence o f these d i f f e r e n c e s i n p r o t e i n o f
F 2 seeds showed t h a t the m a t e r n a l genotypes
c o n t r o l l e d p r o t e i n c o n t e n t . The b r o a d -
sense h e r i t a b i l i t y e s t i m a t e s v a r i e d from
34 to 62% in d i f f e r e n t c r o s s e s , i n d i c a t i n g
e n v i r o n m e n t a l i n f l u e n c e o n p r o t e i n c o n t e n t
and r e l a t i v e l y low a d d i t i v e g e n e t i c v a r i ­
ance. A minimum of t h r e e or f o u r genes
c o n t r o l p r o t e i n c o n t e n t . Low p r o t e i n was
p a r t i a l l y dominant over h i g h . G r a i n y i e l d
and p r o t e i n c o n t e n t were n e g a t i v e l y c o r r e ­
l a t e d i n F 2 p l a n t s , b u t g r a i n y i e l d and
p r o t e i n y i e l d were h i g h l y c o r r e l a t e d . I t
i s suggested t h a t f o r t o t a l p r o t e i n product
i o n / u n i t a r e a , e f f o r t s s h o u l d b e d i r e c t e d
towards i n c r e a s e d y i e l d w h i l e m a i n t a i n i n g
p e r c e n t p r o t e i n near average l e v e l s r a t h e r
t h a n s e l e c t i n g f o r h i g h p r o t e i n i n g r a i n s
a l o n e .
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