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v e i n s o n t h e d o r s a l s u r f a c e o f t h e
s t a n d a r d p e t a l a r e dominant t o y e l l o w and
are c o n t r o l l e d by two genes (Rdvdsa. and
Rdvdsb). A s i n g l e l i n k a g e group i n v o l v e s
S b r , Rdvdsa, L l t and B d l b b .
KUMAR, A . , and M.F. HAQUE. 1973.
V a r i a b i l i t y and c o r r e l a t i o n s t u d i e s in F 2
p o p u l a t i o n of pigeonpea (Cajanus c a j a n ( L . )
M i l l s p . ) . Mysore J . A g r i c . S c i .
7 : 1 7 4 - 1 8 3 . 765
Ten c h a r a c t e r s were s t u d i e d in BR-65 and
BR-13 and in t h e F 1 and F 2 of BR-65 x
BR-13. High h e r i t a b i l i t y v a l u e s i n t h e
broad sense and h i g h e s t i m a t e s of g e n e t i c
advance were o b t a i n e d f o r the number of
l e a v e s and number of seeds per p l a n t .
Moderate e s t i m a t e s o f g e n e t i c advance f o r
t h e number of days to m a t u r i t y were
o b t a i n e d . Moderate h e r i t a b i l i t y and g e n e t ­
i c advance were e s t i m a t e d f o r p l a n t h e i g h t ,
pod number, and y i e l d per p l a n t . Seed
y i e l d was s i g n i f i c a n t l y and p o s i t i v e l y
c o r r e l a t e d w i t h t h e number o f l e a v e s ,
b r a n c h e s , p o d s , seeds per p l a n t , and p l a n t
h e i g h t . I t was a l s o s i g n i f i c a n t l y and
n e g a t i v e l y c o r r e l a t e d w i t h t h e number o f
days t o f i r s t f l o w e r i n g and t o m a t u r i t y .
LAXMAN SINGH, and R.L. PANDEY. 1974.
Genetic a n a l y s i s of some q u a n t i t a t i v e
c h a r a c t e r s i n pigeonpea (Cajanus c a j a n ( L . )
M i l l s p . ) . Himachal J . A g r i c . Res.
2 ( l ) : l - 3 . 766
H e r i t a b i l i t y e s t i m a t e s u s i n g s i x p o p u l a ­
t i o n s from a cross ranged f r o m 54.9 f o r
p l a n t w i d t h t o 96.6 f o r seed y i e l d (broad
sense) and from 28.7 f o r p l a n t w i d t h t o
95.2 f o r days t o f l o w e r i n g (narrow s e n s e ) .
A d d i t i v e g e n e t i c e f f e c t s were s i g n i f i c a n t
f o r days t o f l o w e r i n g and seed s i z e , w i t h
p a r t i a l dominance f o r s m a l l e r seed s i z e .
Magnitude of a d d i t i v e gene e f f e c t s was
r e l a t i v e l y l a r g e r f o r p l a n t h e i g h t , p l a n t
w i d t h , and p r o t e i n c o n t e n t as compared to
n o n a d d i t i v e o n e s . Characters such a s y i e l d
and p l a n t w i d t h had a predominance of
n o n a d d i t i v e gene e f f e c t s .
MALHOTRA, R . S . , and J . S . SODHI. 1977.
Genetic v a r i a b i l i t y and d i s c r i m i n a n t f u n c ­
t i o n s t u d i e s i n pigeonpea (Cajanus c a j a n
L . ) . Madras A g r i c . J . 6 4 ( 1 0 ) : 6 7 7 -
678. 767
F o r t y v a r i e t i e s o f pigeonpea when s t u d i e d
f o r s i x c h a r a c t e r s i n d i c a t e d t h a t branch
number, pod number, and c l u s t e r number form
e f f e c t i v e s e l e c t i o n c r i t e r i a f o r y i e l d
improvements i n pigeonpea.
MENEZES, O.B. De. 1956.
Genetics and improvement of t h e pigeonpea
(C. i n d i c u s S p r e n g . ) . Ceres Minas G e r a i s .
1 0 ( 5 5 ) : 2 0 - 4 4 . 768
S t u d i e s o n t h e g e n e t i c s o f t e s t a c o l o r ,
s t a n d a r d p e t a l c o l o r , pod c o l o r , pod s i z e ,
and h a b i t are r e p o r t e d . Testa c o l o r
depended o n t h e i n t e r a c t i o n o f two l o c i .
W h i t e , p r ; c h o c o l a t e , pR; s p o t t e d , P r ; and
b l a c k , PR. P i g m e n t a t i o n o f s t a n d a r d p e t a l
was g e n e t i c a l l y c o n t r o l l e d a s f o l l o w s :
Y e l l o w , Apcev or apcev; y e l l o w s t r e a k e d
w i t h r e d , Apcevs; u n i f o r m p u r p l e , APCEvs;
y e l l o w s t r e a k e d w i t h p u r p l e , ApCevs; p u r p l e
s t r e a k e d , APCEVs; and b l o o d r e d , APCEVS.
There a r e t h r e e types of pod p i g m e n t a t i o n :
g r e e n , l d ; green w i t h maroon m a r k i n g s , L d ;
and maroon, LD. The mode of i n h e r i t a n c e
of pod s i z e was u n c e r t a i n . P l a n t h e i g h t
and a n g l e of secondary b r a n c h i n g were
q u a n t i t a t i v e l y i n h e r i t e d .
MOHAMED SHERIFF, N . , W. MOHAMED A L I KHAN,
and R. VEERASWAMY. 1975.
S t u d i e s o n t h e i n h e r i t a n c e o f c e r t a i n p l a n t
c h a r a c t e r s in red gram (Cajanus c a j a n ( L . )
M i l l s p . ) . Madras A g r i c . J . 6 2 ( 2 ) :
6 4 - 6 5 . 769
The i n h e r i t a n c e of a few c h a r a c t e r s is
r e p o r t e d , u s i n g induced mutants o f r e d
gram as one of t h e p a r e n t s in t h e c r o s s e s .
MORBAD, I . R . , and M.S. SOLANKI. 1957.
Study of h e t e r o s i s in CajanuB aajan. I n d i a n
J . Genet. P I . B r e e d . 1 7 : 9 0 - 9 5 . 770
H y b r i d v i g o r up to a maximum of 24.51% in
g r a i n y i e l d was r e c o r d e d . B e s t - y i e l d i n g
h y b r i d d i d n o t o u t y i e l d the b e s t - y i e l d i n g
p a r e n t b u t b y e x p l o i t i n g more m a t e r i a l o f
w i d e r b l o o d , more conspicuous v i g o r c o u l d
perhaps be o b t a i n e d , as has been n o t i c e d
i n some crosses i n v o l v i n g p e r e n n i a l types
of t u r . Even if Cajanus proves a good crop
f o r e x p l o i t i n g h e t e r o s i s , t h e d i f f i c u l t y
o f h y b r i d seed p r o d u c t i o n remains u n s o l v e d .
MUKEWAR, A . M . , and D.P. MULEY. 1974.
C o r r e l a t i o n s t u d i e s of some y i e l d components
i n t u r (Cajanus c a j a n ( L . ) M i l l s p . ) .
Nagpur A g r i c . C o l l . Mag. 4 7 : 8 3 - 8 7 . 771
S i x t y v a r i e t i e s o f t u r were e v a l u a t e d . The
g r a i n y i e l d was p o s i t i v e l y and 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 bhusa ( c h a f f ) w e i g h t ,
w e i g h t of pods per p l a n t , number of pods
per p l a n t , number o f branches per p l a n t ,
and l e n g t h of p o d . G r a i n y i e l d was negat
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 , 100-
g r a i n w e i g h t , days t o m a t u r i t y , days t o
f l o w e r i n g , and w i d t h o f pod.
101