Single stem weight and harvest index were both high and stable in the stable yield cultivars.
稳产性好的品种单茎干重大而稳定，收获指数高并有一定的稳定性。
The increasing of plant high, leaf area, stem width and length, single gross weight and stem weight, and the reduction of nitrate content and the raising of vitamin C and solubility sugar content etc.
在促进株高、叶面积、茎粗、茎长、单株重、单株茎重的增加以及降低硝酸盐含量、提高维生素C和可溶性糖含量等方面效果极为显著；
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