Low oxygen gets corn sex cells turned on
STANFORD (US) — Despite agriculture’s dependence on plant reproduction, scientists have just solved a basic mystery: where do plant sex cells come from? The sex life of corn has gotten a lot of attention over the years. By 5,000 BC, agriculturalists in the Americas were already producing the first hybrid corn varieties by cross-pollinating plants to generate larger plants or colored kernels. Today, hybrid seed production in corn is a multibillion-dollar industry, and crossbreeding is fundamental to the production of most other species as well....
Source: Futurity.org - Tuesday, 7 August, 2012
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