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This photo illustration shows a sorghum leaf illuminated by the sun, for the moment. Cloudy days ... [+] create minute-by-minute fluctuations in light intensity that contribute to yield drag (or lost yield potential). Claire Benjamin/RIPE project. No, this is not about some evil presence darkening the skies and harming soybeans. It’s about finding ways to improve photosynthesis so farmers can grow higher-yielding crops and feed the world’s growing population. There’s an international research project called RIPE , short for Realizing Increased Photosynthetic Efficiency. The effort, sponsored by big names like the Bill & Melinda Gates Foundation , most recently has developed a new mathema... Full story

26 February