THE EIGHTH INTERNATIONAL PEARL MILLET ADAPTATION TRIAL (IPMAT 8), 1983

h e r 1 Miltat tmptowtamefct Program

lnternatiorral Crops R w a r e h lnsriruta for the Sarnl.Arld Tropics ICRISAT Petencheru F,O. Andhra Pfadesh 802 324, India

The r l g h t h I n t r r n r t t o n e l P e a r l M i l l r t A d e p t a t i o n T r i a l (IPWAT 81 c o n t r t n i n g 22 e n t r i e r I h y b r t d r end o p e n - p o l l i n e t e d v r r i e t l e r ) w r r r e n t t o c o o p e r r t o r r r t 21 L o c r t t o n r i n t h r r a c o u n t r i e r , r n d r e r u l t r w e r e r r c e i v r d from 18 Location8 i n t h r r e c o u n t r t r r , a t L r t i t u d r s from g012' N t o 30056' N.

D r t r w r r e r e c o r d e d , by t h e c o o p r r r t o r r , on t h e

p r r f o r m e n c s o f t h e r n t r i r s ( g r e l n y t r l d , t t m r t o bloom, p l a n t h r t g h t , and d l s r r r r I n c l d e n c r ) , and on monthly r r l n f r l l d u r i n g t h e c r o p growth pertod.

Thie r e p o r t p r c l r m t r t h e d s t r from t h e t n d l v t d u e l l o o r t l o n c ,

end s u n n e r t e e r t h e e c r o s r - l o c e t l o n p r r f o r m e n c e o f t h r m t r t r r . The t o p f i v e e n t r i e s o v e r 811 l o c r t i o n r o o n r i r t r d o f t h r r e h y b r i d s and two o p e n - p o l l l n s t e d v s r i e t f r r :

IVC-PB004 IICMV 81111 1,

MBH 137, ICH 448, UCH 10 and ICMS 8010. U n u r u e l l y , t h e t o p - p r r f o r m i n g e n t r y we8 r v s r i e t y end n o t

8

hybrid.

C o r r s c t C i t s t i o n : ICRISAT, 1886. ~ l g h t h ? n t s r n r t l o n r l P e r r l M i L l r t A d a p t s t i o n T r i s l [IPMAT 81, 1983. P e t a n c h e r u , A.P. 602 324, I n d l e : I n t r r n e t t o n e l Crops Rssssrch I n s t t t u t e f o r t h e Semi-Arid T r o p l c r . 112 pp. [ L i m i t e d d l 8 t r l b u t i o n l .

La h u i t t i m a r a r a ! t n t a r n a t i o n r l d ' a p t a t i o n d u p r t l t mt 1 IIPMAT 81 c o m p r r n m t 22 e n t r b e s ,

dont dra hybrtdr8,

d r r varl6ter rynthetlquec,

e t des v r r t i t e s a i t e anvoyd aux c o o p o r a t r u r r d r 21 r m p i e o e m m t r d r n s 3 pays. Des r r e u l t a t s o n t i t 6 obtanua dm 18 d r o a r amplacamentr r t t u s r d e n s 3 p a y s e n t r a l e e L e t t t u d r s 30'

68' N t o 13'

28' N. LUL

c o o p 6 r e t a u r s o n t n o t e La8 d o n e e s e u r La c o n p o r t e m a n t d a s e n t r d e s ( r a n d e m a n t en g r a i n s , LonOueur d r t a m p s b La f L o r e i s o n , l e u t o u r d o h plants, et

n c i d e n c s dee m e l a d i a r l a t n s i quo B u r 11 p l u v i o m e t r i e

m e n s u c l l e eu c o u r s de La p e r i o d 0 de c r o i s s a n c e . Ce r a p p o r t p r h e a n t e Les donn6es p r o v e n a n t de cheque emplacement s t r i s u m e Le comportsment do6 e n t r e b e s u r l'ensemb i e des emplecements. S u r t o u s 106 e r n p i e c e m e n t s l e s c i n q p r s m i e r e e e n t r d e s p o u r Le rendement en g r a i n s o n t d t e

t r o i s h y b r t d e s e t deux v e r t i i t d s , c ' e s t 'a

d i r e , I V C - P 8 0 0 4 I I C H V 811111, HBH 137, ICH 448, UCH 10 e t I C H S 8010. C o n t r e i r e m e n t a d ' h a b r t u d e , La p r e m i e r e e n t r a r i t a t t u n e h y b r l d e e t non pee une v a r l e t @ .

The I n t r r n a t i o n r l P e a r l M i l l e t A d e p t s t i o n T r i e l IIPMATI, 18 operated es en i n t e r n e t i o n e l c o o p e r a t i v e venture,

with e c l n t l r t r i n

n e t i o n r l programs c o n t r i b u t i n g t o r n d t r e t l n g t h r IPMAT e n t r t e r . The r n t r i e s i n IPMAT e r e h y b r i d r , s y n t h e t i c s ,

v r r i r t i r e derived

from compoeites, end p o p u l r t i o n b u l k s t h r t hove e l r r r d y proved t h e i r r u p r r l o r t t y i n i n d t v i d u e l progreme. IPMAT p r o v i d e s t h e o p p o r t u n i t y t o r v e l u r t e t h r e e m e t e r i a l s under conditions,

8

wide renge o f s n v i r o n m e n t r l

i n c l u d i n g v a r y i n g diseeee preseure, so t h a t t h e e t e b l l i t y

o f performance con b s aseeserd. Ws e r e g r a t e f u l t o our cooperators who have g i v r n much o f t h e i r t i m e and r e s o u r c e s t o p r o v i d e t h e i n f o r n e t i o n c o n t a i n e d i n t h l r r e p o r t . We welcome comments on t h e r e s u l t s end e n e l y r e e end any r u g g o s t i o n s on weye t o improve t h i s i n t e r n e t i o n e l c o o p e r e t i v e t r i e l . The c o o p e r e t o r s have a l r e a d y been s e n t i n d i v i d u e l 8 n O L y l l l f o r t h e i r r e e p e c t i v e L o c a t l o n s , and, i n t h e y e e r f o l l o w i n g t h e t r i e l , e summary o f t h e date ecroos Locatlons. S c i e n t i s t s who r e q u i r e s e e d o f any o f t h e ICRISAT e n t r i e s i n IPMAT B s h o u l d w r i t e t o t h e L e e d e r o f t h e ICRIBAT P e e r 1 M i l l e t Improvement Breed1 ng Sub-Progrnm, i n d i c a t i n g t h e q u a n t i t y r e q u i red. I f any o f t h e IPMAT B e n t r i e s h a v e been u s e d by c o o p e r a t o r s , e i t h e r f o r f u r t h e r b r e e d i n g o r f o r d i r e c t use as c u l t l v e r e , we would e p p r e c i e t e b e i n g informed.

OBJBCTIYES ENTRIES, DISTRIBUTION, AN0 DATA RETURN TRIAL DESIGN AND HANAGBENT RESULTS GRAIN YlFLD All l0~8tl0n6 Indts Regions i n I n d i e Strbt l i t y analysis TIME TO YII BLM% PLANT HEIGHT D m Y MIU)EU, ERGOT, AND SMUT REFERENCES Table 1 Ent-1e6 i n IPHAT 6'. 2 D i b t r i b u t l o n o f I M T 8. 3 Cooperators o f IPMAT 8 . 4 I n f o r m a t i o n on menagesent o f t h e t r i e l s t a l l l o c a t i o n s . 5 R a l n f a i l d u r i n y crop growth p e r i o d a t a l l Locstione, 6 Summary o f per formance acrose e l l Locstions. 7 G r o i n y ~ s l do f ~ n t r l e sacross e l l l o c a t i o n s . 8 G r a i n y i e l d o f b e s t and worst e n t r i e s s t e l l Location8. 9 Summery o f performance across 15 l o c a t i o n s i n I n d i a . 10 Summary o f performance across 13 Locatlone I n I n d l r . 11 Heen g r e i n y i e l d o f s n t r l e e by r a g i o n i n I n d i a . 12 A n a l y s i s o f verlance f o r g r e i n y i e l d by r e g i o n i n I n d l s . 13 C o r r e l e t i o n e n s l y e i s o f g r a i n y i e l d by r e g i o n i n I n d l a . 1 4 Summary o f porformence o f t r i a l a t e l l t o c a t t o n e . 15 Tima t o 50% bloom o f e n t r i e s across e l l L o c r t i o n r . 1 6 P l a n t h e i g h t o f o n t r i e s acrose a l l Location#. 17 Downy mi [dew lncldence across 6 l o c a t f o n a . 1 8 Data f o r Ludhiane. 19 Data f o r H i s a r . 20 Data f o r Durgayure. 21 Dets f o r Kenpur. 22 Deta f o r G w a l i o r . 23 Date f o r Jnmnager. 2 4 Data f o r Aurengebad. 25 Date f o r J a i n e . 26 Oata f o r R a h u r i . 27 Data f o r ICRISAT Center HF. 28 Data f o r ICLISAT Center LF. 29 Date f o r Palem. 30 Date f o r Bhevsnlsagar. 31 Deta f o r Coimbetore. 32 Oata f o r Kovi L p s t t l 33 Data f o r Bahswaipur. 3 4 Deta f o r Dedu Sind. 35 Date f o r N~amey. 36 Dete f o r Maradi.

.

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a . . , , . ,

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The

purporr

of

I W T

i 8 t o t r o t ICRISAT m d c o o p r r r t o r r '

rtlte

mrtrrlrl over a r i d e r g r o - c l l ~ t o l o g l c r l renge t o :

-

doternins

the y i e l d s t r b l l l t y of divere8 p e a r l m i l l r t hybrid8

open-pollinated

vrrlrtirr

under a r r n g r o f

Lrtitudsr,

rnd

Crrtlllty

c o n d i t i o n c , r e l n f r l l , end d i r e o r e p r s e e u r e r ,

-

Identify

those

e n t r i r r t h e t poesass r e s i s t s n c e

across envi ronments

to

downy

mlldew

.

E n t r i e s t h e t e r e s u p e r i o r f o r y i e l d end d l r r r r r r r r f s t r n c s aey be considered

f o r release s t s regional l e v e l ,

o r 8s p r r r n t s l

materlsl

f o r h y b r i d l s e t l o n or f u r t h e r s s l s c t i o n . The Locetions;

trial for

cen a l s o be used t o p r o v i d e dete on t h e the

second t i m e i n e r e p o r t

e n a l y s i s o f t h e d e t e f o r I n d i r hoe been done.

of

grouping

of

I W T , a rspionel

W I E S , DIBTRIKflIOW UO M T A In

16

B

I W T

mere 22 e n t r i e s

there

conrtating

v e r i e t i e s ( 7 r y n t h e t i c ~end B

open-pollinated

of

8

verirtler

hybrids, darivod

f r o m c o l p o a i t e a 1 and e l o c o 1 check (Tab l e 1 I . The t r i a l wee d f s t r f b u t e d t o 21 t o c e t f o n s i n t h r e e countries, and data

were

a r returned f o r

1 B tocatlons I n t h r e e c o u n t r i e r (Tables

2

and 31.

TRIM DESII1(. IIAMBWWf

All)

RAINFALL M T A

The t r i a l wee c o n d u c t e d ae a randomised, c o m p l e t e b l o c k d e s i g n i n three

replications.

Table

A.

The

management o f t h e t r i a l

is

summerired

in

Monthly f i g u r e s f o r r e i n f e l l d u r i n g t h e crop growing p e r i o d

r n d i n f o r m a t i o n on i r r i g a t i o n were e l 6 0 s u p p l i e d ( T a b l e 5 ) .

RESULTS

BRAIN YIELD ALL Locations The o v e r a l l y i e l d b o f t h e e n t r i e s a c r o s s e l 1 19 L o c e t i o n s that

two

of

the

top

6

1

~e n t r i e s

ITables

6 and 71.

and

i s n o t a b l e t h a t IVC-PB004

were

showed

op~n-pollinetad varletlee

The h i g h e s t - y i e l d i n g e n t r i e s a r e u e u a l l y

hybrids,

AICMIP

triels)

d e r i v e d f r o m t h e I n t e r V a r i e t a l Composite was t h e t o p - y i e l d i n g

entry.

On

it

everage,

the

b i x

(ICMV 81111 i n t h e

ICRISAT-bred synthetics y i e l d e d b e t t e r t h e n

the

f i v e ICRISAT-bred v e r i e t i e s t h a t were d e r i v e d f r o m composftes. The t o p SIX

e n t r i e s were ~ e p e r a t e db y o n l y 80 k g ha-'

i n therr yields,

rh1L6t

t h e a c r o s s - l o c e t o n s t a n d a r d e r r o r was +51 k g he-'. The e c r o s s i o c a t i o n mean o f t h e p e r c e n t e g e s o f t h e t r i a l means i s a

Less

biased

estimate

of

performance

than

a

streightforwerd

aem,

rrlthartlc

mince t h e a r i t h ~ t i ca w n l a motphtod towrrda those

w t r l r that prrform bast a t the h l p h r r t - y l r l d l n g chanprr end

can

the

Marked

ba a r m b r t w r r n r r n k l n p r o f a n t r i e r on a r m g r o i n

mean

6).

(Table

loortlonr.

of

the parcontaper o f t r i a l

Mot r u r p r l o l n g l y ,

bar18

of t h e

local

check

aman

at

raoh

yield

locetion

t h e l o c r l chock 11 top r m k r d on

mean o f t h e p r r c m t r g e r o f t h e t r l r l a r r n r , parformad b r a t i n t h e two

l o r r r t - y l e l d i ng

the

rinoe

the

envi ronments

[ N i n r y end H e r e d i , k t g e r l . IVC-PB004 r r t a l n r t h e t o p p o r l t l o n m m n p r t the

t e a t entrim8 which l n d l c r t e c i t 8 r t r b ~ l t t yo f p e r f o r a a n . e

locettone.

The

second-ranked e n t r y on prmtn y i e l d ,

seventh-ranked clearly yieldtng

that

environments,

Another

MBH 137,

e n t r y on 0 mean percantape o f t r i a l mean

tndlcates

MBH 137

but

Lres

i s parforming well i n

change i s I C H 448,

noteeble

tha

across

well

I s tho

beelo. in

Thic

the

htgh-

poor-ytaldlng

ones.

which l o ninth-ranked on

grain

y l e l d , b u t third-ranked on mean percentege o f t r i a l mean. Over t h e 1 9 l o c e t i o n s ,

e x c l u d i n g check v e r l a t l r a , the b e s t e n t r y Y

wee e h y b r i d i n 1 4 l o c e t l o n 6 and we6 crcond b e a t i n 7 Locations (Table

81.

However,

frequent,

es

amongst t h o two woret e n t r i e s h y b r l d e were agein they

were worst i n 13 l o c e t i o n e and n e x t wore8

more in

8.

T h i s c l e a r l y SUQgeste a g r r e t e r i n s t e b l l l t y amonget t h a h y b r i d e .

IVC-

PKJ04,

meen

elthough

top

ranked

t r i a l mean,

on

both

mean

greln

yield

end

percentage

of

comas i n t h e t o p two a n t r l s a a t o n l y

two

Locetions,

i l l u e t r e t l n g t h a t the r m e r k a b l e performance o f t h i e e n t r y

i s because o f 1t s stab4 11 t y across Locatlono.

1ndta The the

15

a c r o a s - l o c a t i o n performance o f t h e e n t r l a a war analyead Locations I n I n d i a ITebla 91.

The

top-ranked

entrtes

for are

446

a p a r t f r o m t h e f a c t t h a t ICH

t i t t l e chenged,

I 8 now t h i r d - r a n k a d ,

wht 1 s t I C H 008, w h i c h o c c u p i e d t h i s p o e t t i o n o v e r a l l l o c a t t o n e , f a l i s to ninth position. Frequently, of

d l b c a r d L o c a t i o n 8 w i t h h l g h coefficients

ecientiats

Th s

v s r t a t i o n ( C V ' t i ) froin a n a l y s e s o f m u i t i l o c a t i o n e l d a t a .

s

u n f o r t u n e t e a8 t h a 8 e e n v l r o n a a n t s e r e o f t e n L o w - y i e l d i n g and t h e r a f o r e more

typical o f farmsrr' fields.

locetions

The d a t a were e n a l y e e d

a f t e r e x c l u d i n g t h e d a t e f o r Durgapura end R ~ h u r iw i t h C V ' r

29% (TebLe 101

greater

th4l

entricc

we6 L i t t i e chenged.

I n generel, However.

y i ~ ~ d i ern iv i~r o n m r n t b

r

y leltl

(aal.nt

'

2570 k g t ~ s - ' for RXI~(I?IB

+

*

r

Li

.f

t

highest

t o i a l f o - r weit i n hiqh

tin,

w th

ICMS M'.

t r , h o t an ilnomw!ous

y i e l d a'

n Iric

t

I

trr:k

16

'.

r n n ~f 2150 k S h w

t~orad-~uricc~ erntry 1

More

and

L8n

bc

c u n ( o r n l n ( j t t , ~e f f t ~ tc r e s i n g l e unosoloub

d r t u r m i n ~ r ~ gr r a n

in

Locvtion

ctirni.r~~cC '

hu'

f r o a thilr

point

rnnL

P

the

I!, r i c l r

Ths g r c 9 n t t ; hung+.

w h i ~ hf r i \ from 5 t h t o 15:h

i36'111 ki,

t h e p e r f o r r anc

HBH

turlked, w h i ~ hc b r ~ bc. r x u e c t e d a & h y b r d6

finhurl

acroee

}

pld,

-

r h i ~ ,thou: ~

ttlor

d f s c e r d rig

r l t h tiibh C V ' e

Rogiono i n I n d i a Indio the

we6 d l v i d e d ( n t i .

north

and

s o u t h ' regiorbs

p u r f o r m e n c u u f t h e s i t r l e b ' n t h t ~ et n .

beon

nude

ICRlfA',

Ari,'hra

diffarencci r7ahit

between

In

:I1

IlC-ft00c.

FL$huri, Pdrerash:r~. P73

i~sh,

11

ili6

perccr~nnce . ~ f : I 8

'1

1:"

in tte

t>r7tri

nc I C H 446 f a l l t.:

:

in

north

,.

region

are

thc

s h c l l i n both

14-h

the

The d l v l b i ~ nhas

C ~ ~ t :T i. e r e

T ~ Lo n l b e n t r y t h a t p e r f o r ,

r'

ba8:s.

exeaino

end bee ~f

reSlons,

perrorn,\rrce o f e n t r i e s chenres on a re,i~iiwL

to

end

rem6rkeble

twc

regions

rtgicns

1s

1 7 t h r e r ~ e dl n n o r t h

UCH 10 i s t w e l t h r a n k e d i n t h e mouth.

Indle,

m t r i e m i n one r e g i o n

-

Two o r t h e t o p - r a n k l n p

IVC W135, t h i r d r a n k e d 4n t h e s o u t h , and IWS

ml0, second r a n k e d i n t h e n o r t h

- e r a n o t aaongst

e n t r i o 8 o n en a l l - I n d i e b e s i s .

knongat the top-ranked e n t r i e s

there

no g r e e t d i f f e r e n c e s between p s r f o r m e n c a maaeursd 8s neon

pretn

were

t h e f i v e top-ranked

y i e l d o r as mean p e r c e n t a p e o f t r l a l mean. The south

velidlty

( T a b l e s 1 2 and 1 3 ) .

analysis

into

bean t e s t e d by on a n a l y s i s o f v a r r e n c a and

has

difference [Table

and u s e f u l n e s s o f t h e s e p a r a t i o n

between

121.

Unlike the srtuetion

t h e n o r t h and fiouth r e g i o n s

a

111

we6

north

and

corralation

IPMAT

the

7,

non-signtflcent

There r o b e g r e e t e r d i f f e r e n c e between l o c a t i o n s I n t h e

n o r t l - t h a r i r j t h e b o ~ r t h , aric :he garlotype x L o c e t i o r l i n t e r e c t i o n

was

a l s o g r e e t e r i n t t l o n o r t h Lhar i n t h e s o u t h ( T a b l e 121.

A

correlatlor

specific fioutb

;ocatlonb

end

entries

e r ~ a l y b i f i was done betwfien t h e

yields

and t h e meen y l e l d b o f t h e s n t r i e s i n t h o

a l l - I n d i a ITab:e 13

at e

entry

.

A t igh c o r r e l a t i o f i

L c c e t i o n w7tt meon y i e l d h i n a r u g i o n ,

of

st

north,

yields

of

indicates that a

t r i a l e t t h s t l ~ c a t i u ni f , u s e f u i f o r p r e d i c t i n g y i e l d s o f e n t r i a s o v e r a

wider ere8 and

with

fcr

t h a t yeer

without

Tho c o r r e l a t i o n a n a l y s i s has been

the date f o r t h e Location

being

axamined.

L e t t e r i s a more r i g o r o u s t e b t of' t h e p r e d r c t i v e v e l u e o f s In

IWAT

region

8,

are

entries.

north,

the Locations i n t h e

This

is

not o n a r t i f a c t o f the

more t o t t ~ eo v e r s l l meens;

southern

The

Location. southern

superior o t p r e d i c t i n g t h e e l l - I n d i a performance

contributrng the

I n c o n t r a s t t c IPHAT 7 ,

done

of

locetlon

the means

t h e r e e r e more L o c a t i o n s

end t h e mean y i e l d o f t h e n o r t h e r n l o c a t i o n 6 1s

h l g h e r t h e n t h e mean y r e l d o f t h e s o u t h e r n L o c a t l o n s .

In

slightly

Thr

c o r r r l r t l o n r n a l y r l r j u e t I f I r 8 t h a zoning o f t h e t r i a l d r f r .

I n a r t o f the c e r r r the locrttonr f i t b r a t i n t h e i r o m r q i o n

*.n

thr

r e s p m c t i v r Locettons e r e I n c l u d r d I n t h e mean o f t h e r r g i o n

thr

Locrtfons

show e h t g h e r c o r r e l a t i o n w i t h t h e mean o f

rrgion

than

clrrr,

howrvrr,

Indlvldurl

w f t h t h a t o f the other rrgton. In

the

crre

of

the

ragion,

ir

tare

whm

thr

t o c r t l o n r are not c o n t r i b u t t n g t o t h r regtonel o r

maen.

Jrlnr

better

In

tr

the

an

overall

l n t e r m e d l a t e L o c r t l o n and would apperr

south,

and Durgepura i r e

very

poor

om

thrlr

Thir position

northern

4.r.

to

fit

predictor

of

r a g t o n a l o r o v e r e l l meeno. Sites Locetlons,

whlch

are

good

predictors

include

all

the

southern

a p a r t from Palem, and r n c i u d a Kanpur, Jalna and Aurangsbsd

I n the n o r t h . Thr

corrslation

I s o n l y 0.16,

entry

between n o r t h end south I n d i a

means

for

each

and i n d i c a t e s how L i t t l e t h e two r e g i o n 8 h e v t i n

cowton.

8-i

L i t 1 Mlly8iS Anatyees according t o F i n l e y end W i l k i n s o n 119631 end

end B a r r h ( 1 9 8 ) l heve been done. f19851.

The h y b r i d s e r e ,

s l o p e s , and h i g h e r

s~~ v e l u r s are

the

s~~

These e r e a l s o r e p o r t e d i n W i tco.be

i n generai,

higher-yielding,

values than the v a r i e t i e s [ F i g 11.

o f t h e h y b r i d s may w e l l be

8

minority o f the antrleb i n the t r l e l ,

(The h i g h e r

and a t y p l c a l

ee they entrles

Lines.

This

beceusa t h e envi ronmerltai ,ndices ere the o v e r a l l means across e l :

l o c a t i o n s o f the e n t r l e s i n the t r i a l ,

by

heve h i g h e r

btatistical artifact,

w i l l tend t o have Larger d e v i e t l o n s from the regression

is

Binewangar

the open-pollinated v e r ~ e t r e s ) .

and e r e thus mainly determined :P

b o t h analyses

IVC-98004

is

c l e a r l y r u p e r i o r f o r b o t h y i e l d m d e t e b l l i t y ( F l g r . 1, 21.

mrneotmam The Later

Locrtion

date

show r weak t r e n d f o r t h e e n t r f e r

i n t h e n o r t h ( T a b l e 141.

irrigation,

No d o u b t ,

dlffrrancer i n

to

bloom

rainfall,

end t e a p e r e t u r e b e t w r a n L o c r t l o n r e r r r e d u c i n g t h r

trend

t h a t c o u l d be expected f r o m d i f f e r e n c e # i n day Length a l o n r . The d i f f e r a n c a r i n t t m e t o bloom b r t r e e n t h r t a r t r n t r i r e e r r n o t Large,

7 d a e p r r a t r r t h e e a r l i r r t end l a t r r t e n t r i e r [ T a b l e 1 5 ) . e n t r y i s t h e check h y b r i d BJ 104.

earliest

entries for yield,

The

b o n g the hrphrrt-ranked

UGH 10 i s t h e l a t e s t end MBH 137 t h e e a r l i r r t , b u t

o n l y 4 d s e p a r a t e s t h e s e two e n t r i e s .

P

M HEIGHT As

than

i n prevlous years,

the open-pollineted v e r i e t l s e are

the hybrids (Table 16).

Verietal

The v a r i e t i e s d e r l v e d f r o m

Composite e r e t h e f i r s t ,

second,

the

Inter

and f o u r t h ranked e n t r i r r

end e r a o f about t h e same h e i g h t 8 s check v a r i e t y I M S 7703. renklng hybrids for grein y i e l d Include

taller

MBH 137,

The t o p -

I C H 446, UCH 10 end

ICH 448, end t h e s e e r e e l l among t h e s h o r t e s t e n t r i e s , though t h r y e r e s t i l l t e l l e r t h e n BJ 104.

O a m M I ~ srrr, , We0rmRtB.l The bstreen

susceptlbi lit y

o f e n t r l e s t o downy mildew

Locations lTeble 171.

reslstence excellent

weL

oetween e n t r l s s .

t o downy m i l d e w .

markedly

The two t o c e t i o n s i n Weet A f r j c e

much h i g h e r Levels o f oowny mildew b u t , distinguleh

verled

even t h e n , i t i s d t f f i c u l t t o

IMS

appears t o

The top-ranked

r e c ~ s ~ e n c et o downy m i l d e r I n

hed

entry,

Indla,

end

heve

IVC-PB004, in

good hob

controlled

experia~ta.

N e v e r t h e l e e e , a t M r r e d i i n Niger I t h r a l e v e l a o f d m y

n f l d e w whIch a r e h i g h , b u t b e l o w t h e e v e r e g e f o r t h e t r i a l . The

dete

Teble17.

or

ergot

end

m a r t incidence

Inopen-polltnetedheede

ere

not

included

In

I n e t r i a l where t h e m t r l m e have

v e r t e b l e m r t u r i t y , eny s c o r e 8 f o r t h e s e d l e e e s e r a r e m i a l e e d f n ~ , a l n c e p o l l l n e t t o n o f the f i o r e t s prevents i n f e c t t o n . I n t h r t r i a l ere, pollen nursery provided

at

therefore,

t h e t i n e they e r e

data

will

reported

E a r l y end L a t e e n t r i e s

e t a d l s e d v e n t e g e 8s t h e r e W I L L b e l e s s flowering. f o r these

Ic

future,

diresees.

f o r o n l y a few L o c e t i o n e end t h e y were o l e o

only

Rust

dieerrs

dete

Incomplete,

were eo

t h e s e d a t e e r e e i s o not p r e s e n t e d i n Table 17.

JRW [March 19861

B l n w g o r , Hone P. end Bereh, B . C . 1980. Y l e l a r i s k e v e r s f o n , end genotype s e l e c t i o n : c o n c e p t u a l i s s u e s end epproeches. ICRISAT Research B u l l e t i n 3, py 23. [ L i m i t e d d i b t r i b u t i o n l . F f n l e y , K.W. end WlLktnaon, 6.N. 1963. The a n e l y s i s o f e d a p t e t i o n r n e p l a n t b r e e d i n g programme. Austrelren Journal o f A g r I c u l t u r e l S c i e n c e 14:742-754.

ICRISAT.

1986. Seventh I n t e r n a t i o n a l P e e r l M i l l e t A d a p t e t i o n T r i o 1 IIPHAT 7 1 1981. P e t e n c h e r u , A.P. 502 324, I n d r e : I n t e r n o t i o n a l Crops Research I n s t i t u t e f o r t h e S e m i - A r i d T r o p i c s . ICRISAT. 49 pp. ( L ~ n i t e d distribution).

-

Iltcol.br, J.R. 1985. The v e r i e b i l l t y r n t h e y l e l d o f p e e r 1 m i l l e t Paper p r e s e n t e d e t t h e v a r i e t i e s end h y b r i d s i n I n d i a end P a k l s t e n . IFPRI/DSE Workshop on Sources o f I n c r e a s e d Ver i e b i L i t y i n C e r e a l Y i e l d s , F e l d e f i n g . Germany, November 26-29, 1985.

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