表明施氮提高收获指数是促进小麦增产的主要原因之一。
This indicates that it is one of important reason for wheat yield increase by enhanced harvest index with applying N.
研究结果表明，经过改良热带亚热带玉米种质的株高降低40 %以上，收获指数从30 %提高到5 0 %左右。
The study showed that plant height of improved tropical and subtropical maize germplasm was reduced more than 40%, harvest index was raised from 30% to 50% by recurrent selection.
施用复合微生物肥能提高水稻株高和收获指数，并通过增产实现增效。
Compound microbial fertilizer could also increase the height and harvest index of rice. Besides, it could enhance farming efficiency by increasing yield.
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.
而适度的干旱可以提高水分利用效率和收获指数。
The Landrace variety Monkhead use more soil water, but the water using efficient is low.
而适度的干旱可以提高水分利用效率和收获指数。
The Landrace variety Monkhead use more soil water, but the water using efficient is low.
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