20.11.2014 Views

Download - OAR@ICRISAT

Download - OAR@ICRISAT

Download - OAR@ICRISAT

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

P a t h o l o g y<br />

NENE, Y . L . , and M.V. REDDY. 1976.<br />

A new t e c h n i q u e to screen pigeonpea f o r<br />

r e s i s t a n c e t o s t e r i l i t y mosaic. T r o p .<br />

G r a i n Legume B u l l . 5 : 2 3 . 1022<br />

B r i e f n o t e s a r e g i v e n o n t h e l e a f - s t a p l i n g<br />

t e c h n i q u e i n w h i c h l e a f l e t s f r o m diseased<br />

p l a n t s i n f e s t e d w i t h m i t e s (Aceria c a j a n i )<br />

a r e s t a p l e d t o t h e p r i m a r y l e a v e s o f t e s t<br />

s e e d l i n g s . The s u p e r i o r i t y o f t h i s t e c h -<br />

n i q u e over t h e t w i g t y i n g t e c h n i q u e i s<br />

i n d i c a t e d .<br />

0RILL0, F . I . , and R.B. VALDEZ. 1958.<br />

Four diseases o f c o f f e e h i t h e r t o u n d e s c r i -<br />

bed i n the P h i l i p p i n e s . P h i l i p p . A g r i c .<br />

4 2 ( 7 ) : 2 9 2 - 3 0 2 . 1026<br />

Rhizoctonia b l i g h t was seen on plgeonpeas<br />

used as temporary shade f o r c o f f e e t r a n s ­<br />

p l a n t s . I t k i l l e d a l l i n f e c t e d p l a n t s and<br />

produced many l a r g e l i g h t brown s c l e r o t i a<br />

o n l e a v e s . Disease a l s o caused d e f o l i a t i o n<br />

of c o f f e e b u t no s c l e r o t i a f o r m e d . Symptoms<br />

and c u l t u r e a r e d e s c r i b e d .<br />

NENE, Y . L . , and M.V. REDDY. 1976.<br />

Screening f o r r e s i s t a n c e t o s t e r i l i t y<br />

mosaic o f pigeonpea. P I . D i s . Reptr<br />

6 0 ( 2 ) : 1 0 3 4 - 1 0 3 6 . 1023<br />

The s t e r i l i t y mosaic (SM) i s w i d e l y p r e v a ­<br />

l e n t i n t h e I n d i a n s u b c o n t i n e n t , p r o d u c i n g<br />

complete o r p a r t i a l s t e r i l i t y i n a f f e c t e d<br />

p l a n t s . In some f i e l d s 100% i n c i d e n c e was<br />

o b s e r v e d . T r a n s m i s s i o n o f t h e c a u s a l<br />

agent is t h r o u g h t h e eriophyid m i t e , Aaevia<br />

c a j a n i . Two thousand e i g h t hundred and<br />

f o u r a c c e s s i o n s , i n c l u d i n g pigeonpea<br />

(Cajanus c a j a n ) g e r m p l a s m / c u l t l v a r s ,<br />

Atylosia s p p . , and Cajanus x Atylosia<br />

crosses were screened f o r r e s i s t a n c e t o<br />

SM, by u t i l i z i n g a l e a f - s t a p l i n g i n o c u l a -<br />

t i o n t e c h n i q u e . Four pigeonpea l i n e s<br />

ICRISAT-3783, - 6 9 8 6 , - 6 9 9 7 , - 7 0 3 5 , and one<br />

c u l t i v a r (ICRISAT-7179 or HY-3C) were i d e n ­<br />

t i f i e d a s immune. L i n e s showing o t h e r<br />

d e s i r a b l e c h a r a c t e r s i n c l u d i n g l o n g e r<br />

i n c u b a t i o n p e r i o d , l e s s d i s e a s e i n c i d e n c e ,<br />

m i l d symptoms, and f l o w e r i n g i n s p i t e o f<br />

i n f e c t i o n were a l s o i d e n t i f i e d .<br />

NEWTON, W., and J . W . L . PEIRIS. 1953.<br />

V i r u s diseases of p l a n t s in C e y l o n . FAO<br />

P I . P r o t . B u l l . 2 ( 2 ) - . 1 7 - 2 1 . 1024<br />

Pigeonpea i n Ceylon ( S r i Lanka) i s a f f e c t e d<br />

by y e l l o w mosaic and p a l e m o s a i c ; symptoms<br />

o f b o t h v i r u s i n f e c t i o n s a r e g i v e n .<br />

ONIM, J . F . M . , and P.R. RUBAIHAYO. 1976.<br />

Screening pigeonpea f o r r e s i s t a n c e t o<br />

Mycovellosiella c a j a n i . SABRAO J.<br />

8 ( 2 ) : 1 2 1 - 1 2 5 . 1025<br />

Of 15,000 p l a n t s c o m p r i s i n g 2,107 v a r i e ­<br />

t i e s , 314 p l a n t s were s e l e c t e d f o r r e s i s ­<br />

tance to M. (Cercospora) cajani. When<br />

progeny l i n e s from 1 1 o f these s e l e c t i o n s<br />

were grown a t f i v e s i t e s i n Uganda and<br />

Kenya, l i n e s U C - 7 9 6 / 1 , UC-2515/2, UC-2113/1,<br />

and UC-2568/1 were b o t h r e s i s t a n t and<br />

h i g h - y i e l d i n g . Disease i n c i d e n c e was s i g ­<br />

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<br />

g r a i n y i e l d .<br />

OVERMAN, A . J . 1974.<br />

The i n f l u e n c e of c e r t a i n n e m a t i c i d e s on<br />

weed p o p u l a t i o n i n sandy s o i l s . P r o c .<br />

S o i l Crop S c i . Soc. F l a . 3 3 : 7 2 - 7 4 . 1027<br />

P r i o r to seeding plgeonpeas (Cajanus c a j a n<br />

M i l l s p . ) as a summer crop in May, t h e<br />

p l o t s were b r o a d c a s t - t r e a t e d w i t h c a r b o -<br />

f u r a n (11.2 k g / h a ) , sodium a z i d e (26.9 k g /<br />

h a ) , and a c o m b i n a t i o n of t h e t w o . The<br />

c a r b o f u r a n i n c r e a s e d t h e number o f c r a b -<br />

grass and nutsedge p l a n t s in the second<br />

cover crop t e s t . Sodium a z i d e was n o t<br />

e f f e c t i v e when used a l o n e o r i n c o m b i n a t i o n<br />

w i t h c a r b o f u r a n . R e s i d u a l e f f e c t s were<br />

a l s o r e a l i z e d .<br />

PADWICK, G.W. 1939.<br />

Report o f t h e I m p e r i a l M y c o l o g i s t . S c l e n t .<br />

Rep. A g r i c . Res. I n s t . New D e l h i , 1938-39:<br />

105-112. 1028<br />

I s o l a t e d from w i l t e d pigeonpeas were several<br />

d i s t i n c t species of Fusarium, one of which<br />

appeared to d i f f e r from F. udum and to<br />

produce severe w i l t i n g , b u t n o f o o t - r o t .<br />

I d e n t i t y b e i n g e s t a b l i s h e d .<br />

PADWICK, G.W. 1940.<br />

Report o f t h e I m p e r i a l M y c o l o g i s t . S c l e n t .<br />

Rep. A g r i c . Res. I n s t . New D e l h i , 1939-40:<br />

103-115. 1029<br />

Experiments w i t h c r o s s - i n o c u l a t i o n t e s t s<br />

w i t h Fusarium w i l t f u n g i a r e d e s c r i b e d .<br />

PADWICK, G.W. 1940.<br />

Genus Fusarium 5: Fusarium udum B u t l e r .<br />

F. vasinfectum A t k . and F. lateritum v a r .<br />

uncinatum W.R. I n d i a n J . A g r i c . S c i .<br />

1 0 ( 6 ) : 8 6 3 - 8 7 8 . 1030<br />

F u l l d e s c r i p t i o n s o f c u l t u r a l c h a r a c t e r s o f<br />

v a r i o u s i s o l a t e s o f Fusarium c a u s i n g w i l t<br />

i n c o t t o n , pigeonpea, and sunn-hemp.<br />

Suggests F. udum B u t l . v a r . c a j a n i f o r<br />

pigeonpea w i l t , organism b e i n g m o r p h o l o ­<br />

g i c a l l y and c u l t u r a l l y i d e n t i c a l w i t h , b u t<br />

p a t h o g e n e t i c a l l y d i f f e r e n t f r o m , t h a t<br />

c a u s i n g sunn-hemp w i l t .<br />

129

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!