随土壤水分胁迫的加重，各品系的收获指数提高。表明水分胁迫促进了光合同化物向籽粒的运转。
The harvest index of all the test lines increased with the decrease of soil water potentials, indicating that water stress enhances translocation of assimilates to grains.
随土壤水分胁迫的加重，各品系的收获指数提高。表明水分胁迫促进了光合同化物向籽粒的运转。
The harvest index of all the test lines increased with the decrease of soil water potentials, indicating that water stress enhances translocation of assimilates to grains.
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