As water resources for agronomic use and the potential of engineer water-saving become more limiting,the improvement of water use efficiency(WUE) for plant themselves becomes increasingly more important.Root systems obviously play an important role in water acquisition for plants and are a significant component of tolerance to water-deficit stress.Yet,it is unclear what correlation exists between roots themselves and water use efficiency.We used three maize(Zea Mays L.) varieties,HD4(F_1),478(♂)and TS(♀) to...
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