Agence France-presse: Japanese biotechnologists on Sunday said they had developed a rice plant with deeper roots that can sustain high yields in droughts that wipe out conventional rice crops. It is the third breakthrough in new cereal strains in less than two years, boosting the quest to feed the world's spiralling population at a time of worsening climate change. Writing in the journal Nature Genetics, a team led by Yusaku Uga of the National Institute of Agrobiological Sciences in Tsukuba describe how they found...