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通过对13个冬小麦品种不同生育期根系pH，茎基节间pH以及根区土壤pH测定和分析表明：在石灰性褐土（pH8．2）上，冬小麦根系和茎基部节间pH值为酸性，品种之间有差异，同一品种不同生育期pH值变化也不尽相同；根系pH值灌浆至腊熟期不变或升高的小麦品种，后期表现落黄好，根系活力维持时间长，籽粒饱满，而pH值降低的品种，则表现死熟，籽粒瘦瘦。根系pH值的变化在整个生育期和土壤根区pH值的变化也不一致。
The root pH, the pH value between the stems and bases and the soil pH in the root zone of 13 winter wheat cultivars were measured and analyzed. The results showed that the internode pH value of winter wheat roots and stems was acidic , There are differences among cultivars, and the pH values of different cultivars at the same cultivar vary with different pH values. Roots of wheat cultivars with constant or increased grain filling at the late ripening stage show good yellowing at the later stage, Plump, while the lower the pH of the species, the performance of maturity, the lean seeds. The change of root pH also did not accord with the change of pH value in the whole growth period and soil root zone.