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本试验研究了紫色土pH值对枳砧、红桔砧和香橙砧伏令夏橙吸收Fe、叶绿素含量、过氧化物酶活性以及植株生长的影响。结果表明,香橙砧最耐碱;红桔砧其次;枳砧最不耐碱;而耐酸性无大差异。其最适pH依次为6.2、5.7、5.7,pH8时的生长量相当最适pH时的84、50、38％。香橙很有希望在四川作pH>6.5的紫色土柑桔园的砧木。pH4时的生长量依次相当最适pH时的74、71、67％,枳仍是酸性土壤的最优砧木。
In this study, the effects of purple soil pH on the absorption of Fe, chlorophyll, peroxidase and plant growth of summer orange were studied. The results showed that the most resistant to orange anvil root; red anvil; followed by the most; orange is the most alkali-resistant; but no significant differences in acid resistance. The optimal pH was 6.2, 5.7, 5.7, and the optimum growth pH at pH8 was 84, 50, and 38% respectively. Orange is very promising in Sichuan for pH> 6.5 purple soil orange rootstocks. The growth of pH4 was 74,71,67% of the optimum pH value at the same time. Trifoliate orange was still the best rootstock in acid soil.