Sean O`Hanlon`s glancing header from Peter Leven`s free-kick gave Dons the early lead before Daniel Powell sliced through the centre of the home defence to make it 2-0 after 61 minutes.
Jeff Hughes netted a consolation goal from the penalty spot for Rovers with seven minutes remaining after Mathias Doumbe had handled a shot from Rene Howe. By then, Dons were down to 10 men after O'Hanlon was sent off for a second bookable offence for tripping Will Hoskins in the 67th minute.
Robinson said: "Sean had already been booked when he brought their lad down and under the rules he had to go.
"The handball was one of those where a shot has been struck at a player from three or four yards away and I`m not sure what he could have done to avoid it. But if the ball has hit his hand the referee has to make a call.
"It didn't alter the outcome and the interesting thing for me was how it challenged our players to hold out in the closing minutes. They did so with the tremendous commitment they showed throughout against a Bristol Rovers side who will be stronger for their new signings and could be in a false position."
Source: PA
Source: PA