!"!
##
$
% &
!’( ) & *+, " -. /( 01
2 %( 3 34 ’ ’ 3
3 5 (6 3 , ’ , ’ ’ 4
( ( 4’( 4( ( 3 74.8
, & , 3 ’0 3 (,
, 3 # ( ’ 2( 3 3
( 3 ’ ’
9 (( , 3
& ( , ’, : (
+ , ; ’4’’ 3 ’’ ,’(
’ , <0 #= / .= $3 et al. = >(?
-@ A, + ( + , &
( ( , 3 0, ’+ (’+ ’+
+, (’+ +( ’ 3 ( et al. <B= B@ +
, (’+ 3 (( 3 ’’
3 + (( & ’’ , 3
’ ( (( # ( 7 & 3
(’+ , , ’ ’ <$ et al. .@ (’+
(’, ( <$ et al. @ & , + -
, 34 ( ’ ’ ((
; 3 ’ (’+ 3 0, 0 ’ ’ ’’
’ ((
!
& 3 C0 " < ##- / -B. 7.B
( +@ &3 ’0 3 ’( <B ( 3@ . , 3
’’, ( 9 ’0 # , , <Medicago sativa + (@ 3
, 3 , 3 & ’0 D ’0 3
’’ & ’0 3 <; @ ? <29@ 3
’’ 4 < (@ & )4( +
7B (( 3 ( + < % +’@ ( E
Experimental design and treatments
& ’ 7 3 (? 0 3 ( <& @
0 ’ & ? ’ 3 7 ( B ( 3 & ((
3 ’’ (, <& @ -# ( ’ 3 ’ ’’ <7 ( (@
’ ’’ !,( F #8 G 8 8 H ’ .8 G 8
#8 H (( 3 ’’ 3 ’ B4( < @ 30
3 <$ et al. .@
Crop
’ < ’ + &@ 3 3 7 0 I E B J4(((
’’ 3 ’’ B 0I ( 3 3 ’’ 0 I
! & ’ 3 33 . , 3 <!@ , 3 +
A 3 3 + ( , 3 7 ( ’ ’ 3
7 (( 3 + + 9 3 7
(( 3 +