Any value in turn bluff?

[_And1_]

Pot-Limit Omaha High, $1 BB (8 handed) FTR converter on zerodivide.cx

BB ($40.80)
Hero ($100.20)
UTG+1 ($40)
MP1 ($98)
MP2 ($40)
CO ($25)
Button ($114.20)
SB ($80)

Preflop: Hero is UTG with A[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img]. MP2 posts a blind of $1.
Hero calls $1, UTG+1 calls $1, <font color="red">MP1 raises to $6.5</font>, 5 folds, Hero calls $5.50, UTG+1 calls $5.50.

Flop: ($22) 9[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] (3 players)
Hero checks, UTG+1 checks, MP1 checks.

Turn: ($22) A[img]/images/graemlins/heart.gif[/img] (3 players) Hero checks, UTG+1 checks, <font color="red">MP1 bets $17</font>, <font color="red">Hero raises to $71.9</font>, UTG+1 folds, MP1 calls $54.90.

River: ($165.80) 3[img]/images/graemlins/diamond.gif[/img] (2 players)
<font color="red">Hero bets $21.8 (All-In)</font>, MP1 calls $19.60 (All-In).

Final Pot: $207.20

I kind of figured that the turn better has AA, since he made a pf bet that hadnt been seen earlier, and he very likey wouldnt bet without nutflush... So i thought i could push him out with the sole k [img]/images/graemlins/heart.gif[/img] ... apparently not...

Input pls? In short i should have bet the flop but was worried for the suited A from the pfraiser so i didnt.. silly me...

The river bet was obviously a waste of money.