Even as the population doubled from three to six billion, we managed to race ahead with all kinds of technological and scientific events in agriculture - from using more fertilizers to mechanization to advanced plant breeding.

If everybody switched to organic farming, we couldn't support the earth's current population - maybe half.

New molecular methods that add or modify genes can protect plants from diseases and pests and improve crops in ways that are both more environmentally benign and beyond the capability of older methods.

For me science is not different from art, except in the one small, crucial detail that experiments speak their own truths, not ours.

The more we can grow on already cultivated land, the better.

I don't know how you overcome the dearth of scientists in the government positions.

Weeds do become resistant to herbicides, and it needs to be managed with multiple herbicides.