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研究表明,增产菌能影响甜菜对矿质营养的吸收速率及选择性,能明显地促进甜菜对N、P、Fe的吸收,但不能促进其对K、Na的吸收。在块根糖分增长期,增产菌有效地改善了碳水化合物的分配和利用,促进碳水化合物由叶片向根部运输。在水分胁迫条件下,增产菌能减少干旱对质膜的伤害作用,并能提高块根中脯氨酸浓度,维持较高叶片含水量和干物质累积速率。
The results showed that increasing bacteria could affect the absorption rate and selectivity of beet to mineral nutrition, and could obviously promote the absorption of N, P and Fe in sugar beet, but could not promote the absorption of K and Na. In the period of tuberous sugar increase, the increased production bacteria effectively improved the distribution and utilization of carbohydrates and promoted the transportation of carbohydrates from the leaves to the roots. Under the condition of water stress, increasing bacteria could reduce the damaging effect of drought on the plasma membrane, and increase the proline concentration in roots and maintain higher leaf water content and dry matter accumulation rate.