n,griinst, n:tt.ur:::l i n f e c t i o n o f...

n,griinst, n:tt.ur:::l i n f e c t i o n o f ‘ leüf
e s 1rl:iv.i ng Low 1.c:l.f’ spots irif’ec tiori dur-Ing
07 . ii8. ‘i’hï~ deseasc
started appearing in
cons iile!YLbly . ‘I’he disease pressure w:i.s
observat.ions recorded for disease YCOIY
ing fi.ve entries had low disease store
tI .
6.
ow aesease s c o r e f o r t h e last 3 se~sons.
II - CHEMICAL CON'IROL OF LElAF SPOT DI:
.-
ASES
7 t’or the chemicai control of leai’ spots
of’ one more chemical VIZ. ) Sumi 8 at
LJI
.8?i. ‘Phe leaf spots had started appearing
fu!igii:idal sprays were given on 1.7.08,
on Letf s p o t s s c o r e were recor3ed at t:he
servations were recordied on the leaf spots
quite high. T h e r e s u l t s o f f’inal lest’ :;pots
lie dir’fe~ences
-in treatment means were
se exhibited the lowest leaf spot, score
st, the v-trieties, 73-N h a d signific?nvly
hr interaction between the vari.et.i.es and
v; I t, i 0 ns recorded onc month after the CIrini
o f results except f o r t h e differences
n .; ignif’ican.t. , This shows that bath thl?

)'I':; AND SKEDLING DISEASRS DUE TO SOIL FlINGI
-
-
--_--. -
,qc’r*Iri .l.lu:~
-2
rr i gcr’
In:: were screencd f o r cr*own rot/colla.r .t.ot
i os k:er*c sown i n CI replications. Entric:.:
niger-
.i Jl~Cl.l~lltll r-1 i sed
on the groundr.ut
le :Aongwith t,he seed at the time of
minat ion and the collar rot incidence,
aleti that 3 varieties VIZ., 55-511, 58-399
rage i ri both t.he replications. ?his inci icates
‘nt, hogen . ‘i’he l’ollow-i ng 1% varl cties llav.Cz
e germination percentage of inoculated ,!,nd
thcy ?lso possess some resistance t,o A.
-.
Hkhk:-17, 58-157, 73-33, 5'7-6'7, 56-370,
*> !J4-47-7 and J 11 are reported to he
ri<?:, show incidenoe of colla-r rot also.
a1 ms very low. Only 10 entries showe:i
Il .
ES THROUGH SEXD TREATMZNT
rs was tested .in t h e f i e l d a t NiorG
g~oundnut causeti due to soi1 fungl pat*t.i-
phaseoli na and Hhizopus rp. ‘Iwo seed I.ypes
sed for* the experimerit. Seed treatment of
ef’clre sow-ing. Observations were recoPd!,#f
t, i nc itlexic:e. Y:i e11j data W8.S rei-orded
:j “tei,
that, :A1 the treatments havc givcr.
1’0 l . ~r:mox at f
g gave the highest ger.r:li-
n.l::o 4 iff’ered si gnif’icantly. Very h Lgh
IVfZf’
PaiTlêt~s
SCCY1. IIow~ver,
tklC i~]t,cit*~:. .t.i()j]


( K ~O:;C: :slso gave the h j gkst yf.el.d .
sc-er! in ~11 respects. ‘Y’he gctrxin&tj on
i n t h e p l o t s sown .hith si,at,ior-i seed t
Macrophomina phaseolina arld
/OUI~~ a s s o c i a t e d with thv seed rots.