March 11, 2016 11.12am GMT
Our modern crops need some help in the immunity department.
theconversation – When you pick up the perfect apple in the supermarket it’s easy to forget that plants get sick just like we do. A more realistic view might come from a walk outside during summer: try to find a leaf without a speck, spot or blemish. Tough, huh? Those are the signs of a microscopic battle waged every day in and on plants.

Just like us, plants are covered in microbes. And just like us, plants have evolved an immune system to protect against the dangerous ones. But our current agricultural system works against plants’ natural immune defenses, by limiting the tools plants have to fight back and restricting evolution of new tools. Tiếp tục đọc “Can we ‘vaccinate’ plants to boost their immunity?”


Có lẽ, đã đến lúc nên nhìn nhận người địa chủ như một thành phần sản xuất trong xã hội, tương tự như giới doanh nhân, chủ đầu tư, nhà tư bản, chủ tịch tập đoàn… Ảnh: Lê Hoàng Vũ




Cái bóng của Nhà nước bao trùm lên đời sống xã hội và hoạt động kinh tế, đặc biệt là ở khu vực nông nghiệp và nông thôn vẫn còn quá lớn. Ảnh: LÊ HOÀNG VŨ
economist – GUO, the driver, pulls his car to a merciful halt high above a crevasse: time for a cigarette, and after seven hours of shuddering along narrow, twisting roads, time for his passengers to check that their fillings remain in place. Lighting up, he steps out of the car and dons a cloth cap and jacket: sunny, early-summer days are still brisk 3,500 metres above sea level. Mr Guo is an impish little dumpling of a man, bald, brown-toothed and jolly. He is also an anomaly: a Shanghainese in northern Yunnan who opted to stay with his local bride rather than return to his booming hometown.
Tiếp tục đọc “Requiem for a river: Can one of the world’s great waterways survive its development?” →