Cook rice according to instructions on-pack until al dente adding turmeric to the cooking water.
When cooked, spread out in a thin layer on a large tray to cool.
When cold, put the rice in a large bowl with the tomatoes, red onion, pumpkin and sunflower seeds, pine nuts, pecans, currants, spring onion and green herbs.
To make the dressing whisk together the olive oil, orange zest and juice. Season to taste, pour over salad and lightly toss.